[PATCH v3 00/19] x86-android-tablets: convert to use GPIO references + Acer A1-840 support

[PATCH v3 00/19] x86-android-tablets: convert to use GPIO references + Acer A1-840 support

[Hans de Goede]

Hi all,

Dmitry's v2 cover-letter:

"This series came about because now software nodes can be used to
describe GPIOs (via PROPERTY_ENTRY_GPIO() macros) and I would like to
eventually get rid of gpio_keys_platform_data structure.

So while I was doing the conversions from GPIO_LOOKUP() tables for
gpio_keys devices I decided to convert the rest of them as well. Maybe
some time in the future we can drop support for GPIO_LOOKUP() and rely
on device properties exclusively."

Changes in v3:
- Add missing pinctrl_put() in lenovo_yoga_tab2_830_1050_init_codec()
  error-exit paths after the pinctrl_get_select() succeeds

- Adding a swnode to the yt3 spi device changes the name of the SPI/codec
  device and the sound/soc/intel/boards/bytcr_wm5102.c machine driver looks
  up the code by name, update the machine driver to use the new name.

- Make yoga-tab2-pro-1380-fastcharger.c propagate the fwnode set on
  the platform-device to the serdev it creates to fix this.

- Fix the commit message of "platform/x86: x86-android-tablets: convert
  gpio_keys devices to GPIO references" which contained a stray reference
  to wm5102.

New patches in v3:

- Change sw_bat register mechanism into a generic swnode_group mechanism

- Use swnode_group mechanism to register groups needed, instead of having
  init() callbacks manually do this

- Changed my email address in the driver to hansg@kernel.org

- Rebased "platform/x86: x86-android-tablets: Add support for Acer A1-840
  tablet" on top, switched that to also use software-nodes for GPIOs and
  added it to this series

- Some Lenovo Yoga Tab 2 support fixes

Regards,

Hans



Dmitry Torokhov (11):
  platform/x86: x86-android-tablets: convert Goodix devices to GPIO
    references
  platform/x86: x86-android-tablets: convert Wacom devices to GPIO
    references
  platform/x86: x86-android-tablets: convert HiDeep devices to GPIO
    references
  platform/x86: x86-android-tablets: convert Novatek devices to GPIO
    references
  platform/x86: x86-android-tablets: convert EDT devices to GPIO
    references
  platform/x86: x86-android-tablets: convert int3496 devices to GPIO
    references
  platform/x86: x86-android-tablets: convert wm1502 devices to GPIO
    references
  platform/x86: x86-android-tablets: convert HID-I2C devices to GPIO
    references
  platform/x86: x86-android-tablets: convert Yoga Tab2 fast charger to
    GPIO references
  platform/x86: x86-android-tablets: remove support for GPIO lookup
    tables
  platform/x86: x86-android-tablets: convert gpio_keys devices to GPIO
    references

Hans de Goede (8):
  platform/x86: x86-android-tablets: replace bat_swnode with
    swnode_group
  platform/x86: x86-android-tablets: use swnode_group instead of manual
    registering
  platform/x86: x86-android-tablets: Update my email address
  platform/x86: x86-android-tablets: Move Acer info to its own file
  platform/x86: x86-android-tablets: Add support for Acer A1-840 tablet
  platform/x86: x86-android-tablets: Simplify
    lenovo_yoga_tab2_830_1050_exit()
  platform/x86: x86-android-tablets: Fix modules lists for Lenovo
    devices
  platform/x86: x86-android-tablets: Stop using EPROBE_DEFER

 .../lenovo/yoga-tab2-pro-1380-fastcharger.c   |   7 +
 .../platform/x86/x86-android-tablets/Makefile |   2 +-
 .../platform/x86/x86-android-tablets/acer.c   | 247 +++++++++++++
 .../platform/x86/x86-android-tablets/asus.c   | 108 +++---
 .../platform/x86/x86-android-tablets/core.c   | 121 ++++---
 .../platform/x86/x86-android-tablets/dmi.c    |  12 +-
 .../platform/x86/x86-android-tablets/lenovo.c | 291 ++++++++-------
 .../platform/x86/x86-android-tablets/other.c  | 338 ++++++------------
 .../x86/x86-android-tablets/shared-psy-info.c |  34 +-
 .../x86/x86-android-tablets/shared-psy-info.h |   8 +-
 .../x86/x86-android-tablets/vexia_atla10_ec.c |   2 +-
 .../x86-android-tablets/x86-android-tablets.h |  28 +-
 sound/soc/intel/boards/bytcr_wm5102.c         |   2 +-
 13 files changed, 722 insertions(+), 478 deletions(-)
 create mode 100644 drivers/platform/x86/x86-android-tablets/acer.c

-- 
2.51.0

[PATCH v3 01/19] platform/x86: x86-android-tablets: convert Goodix devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for Goodix touchscreens to
using PROPERTY_ENTRY_GPIO() to keep all touchscreen properties together.

Since the tablets are using either Baytrail or Cherryview GPIO
controllers x86_dev_info structure has been extended to carry gpiochip
type information so that the code can instantiate correct set of
software nodes representing the GPIO chip.

Because this adds a new point of failure in x86_android_tablet_probe(),
x86_android_tablet_remove() is rearranged to handle cases where battery
swnode has not been registered yet, and registering of GPIO lookup
tables is moved earlier as it can not fail.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 .../platform/x86/x86-android-tablets/asus.c   | 23 ++++---
 .../platform/x86/x86-android-tablets/core.c   | 69 ++++++++++++++++---
 .../platform/x86/x86-android-tablets/lenovo.c | 23 ++++---
 .../platform/x86/x86-android-tablets/other.c  | 37 ++--------
 .../x86-android-tablets/x86-android-tablets.h | 11 +++
 5 files changed, 105 insertions(+), 58 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/asus.c b/drivers/platform/x86/x86-android-tablets/asus.c
index 97cd14c1fd23..6c4468f4004b 100644
--- a/drivers/platform/x86/x86-android-tablets/asus.c
+++ b/drivers/platform/x86/x86-android-tablets/asus.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
 #include <linux/input.h>
 #include <linux/platform_device.h>
 
@@ -77,6 +78,16 @@ static const struct software_node asus_me176c_ug3105_node = {
 	.properties = asus_me176c_ug3105_props,
 };
 
+static const struct property_entry asus_me176c_touchscreen_props[] = {
+	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[0], 60, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("irq-gpios", &baytrail_gpiochip_nodes[2], 28, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+static const struct software_node asus_me176c_touchscreen_node = {
+	.properties = asus_me176c_touchscreen_props,
+};
+
 static const struct x86_i2c_client_info asus_me176c_i2c_clients[] __initconst = {
 	{
 		/* bq24297 battery charger */
@@ -132,6 +143,7 @@ static const struct x86_i2c_client_info asus_me176c_i2c_clients[] __initconst =
 			.type = "GDIX1001:00",
 			.addr = 0x14,
 			.dev_name = "goodix_ts",
+			.swnode = &asus_me176c_touchscreen_node,
 		},
 		.adapter_path = "\\_SB_.I2C6",
 		.irq_data = {
@@ -152,18 +164,8 @@ static const struct x86_serdev_info asus_me176c_serdevs[] __initconst = {
 	},
 };
 
-static struct gpiod_lookup_table asus_me176c_goodix_gpios = {
-	.dev_id = "i2c-goodix_ts",
-	.table = {
-		GPIO_LOOKUP("INT33FC:00", 60, "reset", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:02", 28, "irq", GPIO_ACTIVE_HIGH),
-		{ }
-	},
-};
-
 static struct gpiod_lookup_table * const asus_me176c_gpios[] = {
 	&int3496_gpo2_pin22_gpios,
-	&asus_me176c_goodix_gpios,
 	NULL
 };
 
@@ -179,6 +181,7 @@ const struct x86_dev_info asus_me176c_info __initconst = {
 	.gpiod_lookup_tables = asus_me176c_gpios,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = bq24190_modules,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /* Asus TF103C tablets have an Android factory image with everything hardcoded */
diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
index db76ba3abd7b..7b5942010c78 100644
--- a/drivers/platform/x86/x86-android-tablets/core.c
+++ b/drivers/platform/x86/x86-android-tablets/core.c
@@ -155,6 +155,7 @@ static struct serdev_device **serdevs;
 static struct gpio_keys_button *buttons;
 static struct gpiod_lookup_table * const *gpiod_lookup_tables;
 static const struct software_node *bat_swnode;
+static const struct software_node **gpiochip_node_group;
 static void (*exit_handler)(void);
 
 static __init struct i2c_adapter *
@@ -330,6 +331,34 @@ static __init int x86_instantiate_serdev(const struct x86_dev_info *dev_info, in
 	return ret;
 }
 
+const struct software_node baytrail_gpiochip_nodes[] = {
+	{ .name = "INT33FC:00" },
+	{ .name = "INT33FC:01" },
+	{ .name = "INT33FC:02" },
+};
+
+static const struct software_node *baytrail_gpiochip_node_group[] = {
+	&baytrail_gpiochip_nodes[0],
+	&baytrail_gpiochip_nodes[1],
+	&baytrail_gpiochip_nodes[2],
+	NULL
+};
+
+const struct software_node cherryview_gpiochip_nodes[] = {
+	{ .name = "INT33FF:00" },
+	{ .name = "INT33FF:01" },
+	{ .name = "INT33FF:02" },
+	{ .name = "INT33FF:03" },
+};
+
+static const struct software_node *cherryview_gpiochip_node_group[] = {
+	&cherryview_gpiochip_nodes[0],
+	&cherryview_gpiochip_nodes[1],
+	&cherryview_gpiochip_nodes[2],
+	&cherryview_gpiochip_nodes[3],
+	NULL
+};
+
 static void x86_android_tablet_remove(struct platform_device *pdev)
 {
 	int i;
@@ -360,10 +389,14 @@ static void x86_android_tablet_remove(struct platform_device *pdev)
 	if (exit_handler)
 		exit_handler();
 
+	if (bat_swnode)
+		software_node_unregister(bat_swnode);
+
+	if (gpiochip_node_group)
+		software_node_unregister_node_group(gpiochip_node_group);
+
 	for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
 		gpiod_remove_lookup_table(gpiod_lookup_tables[i]);
-
-	software_node_unregister(bat_swnode);
 }
 
 static __init int x86_android_tablet_probe(struct platform_device *pdev)
@@ -387,16 +420,36 @@ static __init int x86_android_tablet_probe(struct platform_device *pdev)
 	for (i = 0; dev_info->modules && dev_info->modules[i]; i++)
 		request_module(dev_info->modules[i]);
 
-	bat_swnode = dev_info->bat_swnode;
-	if (bat_swnode) {
-		ret = software_node_register(bat_swnode);
+	gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
+	for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
+		gpiod_add_lookup_table(gpiod_lookup_tables[i]);
+
+	switch (dev_info->gpiochip_type) {
+	case X86_GPIOCHIP_BAYTRAIL:
+		gpiochip_node_group = baytrail_gpiochip_node_group;
+		break;
+	case X86_GPIOCHIP_CHERRYVIEW:
+		gpiochip_node_group = cherryview_gpiochip_node_group;
+		break;
+	case X86_GPIOCHIP_UNSPECIFIED:
+		gpiochip_node_group = NULL;
+		break;
+	}
+
+	if (gpiochip_node_group) {
+		ret = software_node_register_node_group(gpiochip_node_group);
 		if (ret)
 			return ret;
 	}
 
-	gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
-	for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
-		gpiod_add_lookup_table(gpiod_lookup_tables[i]);
+	if (dev_info->bat_swnode) {
+		ret = software_node_register(dev_info->bat_swnode);
+		if (ret) {
+			x86_android_tablet_remove(pdev);
+			return ret;
+		}
+		bat_swnode = dev_info->bat_swnode;
+	}
 
 	if (dev_info->init) {
 		ret = dev_info->init(&pdev->dev);
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 1241a97cda39..22fe76ef5b5a 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -12,6 +12,7 @@
 
 #include <linux/efi.h>
 #include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
 #include <linux/mfd/arizona/pdata.h>
 #include <linux/mfd/arizona/registers.h>
 #include <linux/mfd/intel_soc_pmic.h>
@@ -61,6 +62,16 @@ static struct lp855x_platform_data lenovo_lp8557_reg_only_pdata = {
 
 /* Lenovo Yoga Book X90F / X90L's Android factory image has everything hardcoded */
 
+static const struct property_entry lenovo_yb1_x90_goodix_props[] = {
+	PROPERTY_ENTRY_GPIO("reset-gpios", &cherryview_gpiochip_nodes[1], 53, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("irq-gpios", &cherryview_gpiochip_nodes[1], 56, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+static const struct software_node lenovo_yb1_x90_goodix_node = {
+	.properties = lenovo_yb1_x90_goodix_props,
+};
+
 static const struct property_entry lenovo_yb1_x90_wacom_props[] = {
 	PROPERTY_ENTRY_U32("hid-descr-addr", 0x0001),
 	PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 150),
@@ -108,6 +119,7 @@ static const struct x86_i2c_client_info lenovo_yb1_x90_i2c_clients[] __initconst
 			.type = "GDIX1001:00",
 			.addr = 0x14,
 			.dev_name = "goodix_ts",
+			.swnode = &lenovo_yb1_x90_goodix_node,
 		},
 		.adapter_path = "\\_SB_.PCI0.I2C2",
 		.irq_data = {
@@ -198,15 +210,6 @@ static const struct x86_gpio_button lenovo_yb1_x90_lid __initconst = {
 	.pin = 19,
 };
 
-static struct gpiod_lookup_table lenovo_yb1_x90_goodix_gpios = {
-	.dev_id = "i2c-goodix_ts",
-	.table = {
-		GPIO_LOOKUP("INT33FF:01", 53, "reset", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FF:01", 56, "irq", GPIO_ACTIVE_HIGH),
-		{ }
-	},
-};
-
 static struct gpiod_lookup_table lenovo_yb1_x90_hideep_gpios = {
 	.dev_id = "i2c-hideep_ts",
 	.table = {
@@ -225,7 +228,6 @@ static struct gpiod_lookup_table lenovo_yb1_x90_wacom_gpios = {
 
 static struct gpiod_lookup_table * const lenovo_yb1_x90_gpios[] = {
 	&lenovo_yb1_x90_hideep_gpios,
-	&lenovo_yb1_x90_goodix_gpios,
 	&lenovo_yb1_x90_wacom_gpios,
 	NULL
 };
@@ -259,6 +261,7 @@ const struct x86_dev_info lenovo_yogabook_x90_info __initconst = {
 	.gpio_button = &lenovo_yb1_x90_lid,
 	.gpio_button_count = 1,
 	.gpiod_lookup_tables = lenovo_yb1_x90_gpios,
+	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 	.init = lenovo_yb1_x90_init,
 };
 
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index f7bd9f863c85..e3907812c8bc 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -10,6 +10,7 @@
 
 #include <linux/acpi.h>
 #include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
 #include <linux/input.h>
 #include <linux/leds.h>
 #include <linux/pci.h>
@@ -297,6 +298,8 @@ static const struct software_node medion_lifetab_s10346_accel_node = {
 static const struct property_entry medion_lifetab_s10346_touchscreen_props[] = {
 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("irq-gpios", &baytrail_gpiochip_nodes[2], 3, GPIO_ACTIVE_HIGH),
 	{ }
 };
 
@@ -340,24 +343,10 @@ static const struct x86_i2c_client_info medion_lifetab_s10346_i2c_clients[] __in
 	},
 };
 
-static struct gpiod_lookup_table medion_lifetab_s10346_goodix_gpios = {
-	.dev_id = "i2c-goodix_ts",
-	.table = {
-		GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const medion_lifetab_s10346_gpios[] = {
-	&medion_lifetab_s10346_goodix_gpios,
-	NULL
-};
-
 const struct x86_dev_info medion_lifetab_s10346_info __initconst = {
 	.i2c_client_info = medion_lifetab_s10346_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(medion_lifetab_s10346_i2c_clients),
-	.gpiod_lookup_tables = medion_lifetab_s10346_gpios,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /* Nextbook Ares 8 (BYT) tablets have an Android factory image with everything hardcoded */
@@ -543,6 +532,8 @@ static const struct property_entry whitelabel_tm800a550l_goodix_props[] = {
 	PROPERTY_ENTRY_STRING("firmware-name", "gt912-tm800a550l.fw"),
 	PROPERTY_ENTRY_STRING("goodix,config-name", "gt912-tm800a550l.cfg"),
 	PROPERTY_ENTRY_U32("goodix,main-clk", 54),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("irq-gpios", &baytrail_gpiochip_nodes[2], 3, GPIO_ACTIVE_HIGH),
 	{ }
 };
 
@@ -578,24 +569,10 @@ static const struct x86_i2c_client_info whitelabel_tm800a550l_i2c_clients[] __in
 	},
 };
 
-static struct gpiod_lookup_table whitelabel_tm800a550l_goodix_gpios = {
-	.dev_id = "i2c-goodix_ts",
-	.table = {
-		GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const whitelabel_tm800a550l_gpios[] = {
-	&whitelabel_tm800a550l_goodix_gpios,
-	NULL
-};
-
 const struct x86_dev_info whitelabel_tm800a550l_info __initconst = {
 	.i2c_client_info = whitelabel_tm800a550l_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(whitelabel_tm800a550l_i2c_clients),
-	.gpiod_lookup_tables = whitelabel_tm800a550l_gpios,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /*
diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
index dcf8d49e3b5f..a54d09408866 100644
--- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
+++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
@@ -32,6 +32,12 @@ enum x86_acpi_irq_type {
 	X86_ACPI_IRQ_TYPE_PMIC,
 };
 
+enum x86_gpiochip_type {
+	X86_GPIOCHIP_UNSPECIFIED = 0,
+	X86_GPIOCHIP_BAYTRAIL,
+	X86_GPIOCHIP_CHERRYVIEW,
+};
+
 struct x86_acpi_irq_data {
 	char *chip;   /* GPIO chip label (GPIOINT) or PMIC ACPI path (PMIC) */
 	enum x86_acpi_irq_type type;
@@ -99,6 +105,7 @@ struct x86_dev_info {
 	int (*init)(struct device *dev);
 	void (*exit)(void);
 	bool use_pci;
+	enum x86_gpiochip_type gpiochip_type;
 };
 
 int x86_android_tablet_get_gpiod(const char *chip, int pin, const char *con_id,
@@ -106,6 +113,10 @@ int x86_android_tablet_get_gpiod(const char *chip, int pin, const char *con_id,
 				 struct gpio_desc **desc);
 int x86_acpi_irq_helper_get(const struct x86_acpi_irq_data *data);
 
+/* Software nodes representing GPIO chips used by various tablets */
+extern const struct software_node baytrail_gpiochip_nodes[];
+extern const struct software_node cherryview_gpiochip_nodes[];
+
 /*
  * Extern declarations of x86_dev_info structs so there can be a single
  * MODULE_DEVICE_TABLE(dmi, ...), while splitting the board descriptions.
-- 
2.51.0

[PATCH v3 02/19] platform/x86: x86-android-tablets: convert Wacom devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for Wacom touchscreens to using
PROPERTY_ENTRY_GPIO() to keep all touchscreen properties together.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 drivers/platform/x86/x86-android-tablets/lenovo.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 22fe76ef5b5a..f8d261d37284 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -75,6 +75,7 @@ static const struct software_node lenovo_yb1_x90_goodix_node = {
 static const struct property_entry lenovo_yb1_x90_wacom_props[] = {
 	PROPERTY_ENTRY_U32("hid-descr-addr", 0x0001),
 	PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 150),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &cherryview_gpiochip_nodes[0], 82, GPIO_ACTIVE_LOW),
 	{ }
 };
 
@@ -218,17 +219,8 @@ static struct gpiod_lookup_table lenovo_yb1_x90_hideep_gpios = {
 	},
 };
 
-static struct gpiod_lookup_table lenovo_yb1_x90_wacom_gpios = {
-	.dev_id = "i2c-wacom",
-	.table = {
-		GPIO_LOOKUP("INT33FF:00", 82, "reset", GPIO_ACTIVE_LOW),
-		{ }
-	},
-};
-
 static struct gpiod_lookup_table * const lenovo_yb1_x90_gpios[] = {
 	&lenovo_yb1_x90_hideep_gpios,
-	&lenovo_yb1_x90_wacom_gpios,
 	NULL
 };
 
-- 
2.51.0

[PATCH v3 03/19] platform/x86: x86-android-tablets: convert HiDeep devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for HiDeep touchscreens to using
PROPERTY_ENTRY_GPIO() to keep all touchscreen properties together.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 .../platform/x86/x86-android-tablets/lenovo.c | 26 +++----------------
 1 file changed, 3 insertions(+), 23 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index f8d261d37284..49388266201b 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -97,6 +97,7 @@ static const struct property_entry lenovo_yb1_x90_hideep_ts_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1920),
 	PROPERTY_ENTRY_U32("touchscreen-max-pressure", 16384),
 	PROPERTY_ENTRY_BOOL("hideep,force-native-protocol"),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &cherryview_gpiochip_nodes[0], 7, GPIO_ACTIVE_LOW),
 	{ }
 };
 
@@ -211,19 +212,6 @@ static const struct x86_gpio_button lenovo_yb1_x90_lid __initconst = {
 	.pin = 19,
 };
 
-static struct gpiod_lookup_table lenovo_yb1_x90_hideep_gpios = {
-	.dev_id = "i2c-hideep_ts",
-	.table = {
-		GPIO_LOOKUP("INT33FF:00", 7, "reset", GPIO_ACTIVE_LOW),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const lenovo_yb1_x90_gpios[] = {
-	&lenovo_yb1_x90_hideep_gpios,
-	NULL
-};
-
 static int __init lenovo_yb1_x90_init(struct device *dev)
 {
 	/* Enable the regulators used by the touchscreens */
@@ -252,7 +240,6 @@ const struct x86_dev_info lenovo_yogabook_x90_info __initconst = {
 	.serdev_count = ARRAY_SIZE(lenovo_yb1_x90_serdevs),
 	.gpio_button = &lenovo_yb1_x90_lid,
 	.gpio_button_count = 1,
-	.gpiod_lookup_tables = lenovo_yb1_x90_gpios,
 	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 	.init = lenovo_yb1_x90_init,
 };
@@ -819,6 +806,7 @@ static const struct property_entry lenovo_yt3_hideep_ts_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1600),
 	PROPERTY_ENTRY_U32("touchscreen-size-y", 2560),
 	PROPERTY_ENTRY_U32("touchscreen-max-pressure", 255),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &cherryview_gpiochip_nodes[0], 7, GPIO_ACTIVE_LOW),
 	{ }
 };
 
@@ -1008,14 +996,6 @@ static int __init lenovo_yt3_init(struct device *dev)
 	return 0;
 }
 
-static struct gpiod_lookup_table lenovo_yt3_hideep_gpios = {
-	.dev_id = "i2c-hideep_ts",
-	.table = {
-		GPIO_LOOKUP("INT33FF:00", 7, "reset", GPIO_ACTIVE_LOW),
-		{ }
-	},
-};
-
 static struct gpiod_lookup_table lenovo_yt3_wm5102_gpios = {
 	.dev_id = "spi1.0",
 	.table = {
@@ -1028,7 +1008,6 @@ static struct gpiod_lookup_table lenovo_yt3_wm5102_gpios = {
 };
 
 static struct gpiod_lookup_table * const lenovo_yt3_gpios[] = {
-	&lenovo_yt3_hideep_gpios,
 	&lenovo_yt3_wm5102_gpios,
 	NULL
 };
@@ -1039,5 +1018,6 @@ const struct x86_dev_info lenovo_yt3_info __initconst = {
 	.spi_dev_info = lenovo_yt3_spi_devs,
 	.spi_dev_count = ARRAY_SIZE(lenovo_yt3_spi_devs),
 	.gpiod_lookup_tables = lenovo_yt3_gpios,
+	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 	.init = lenovo_yt3_init,
 };
-- 
2.51.0

[PATCH v3 04/19] platform/x86: x86-android-tablets: convert Novatek devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for Novatek touchscreens to
using PROPERTY_ENTRY_GPIO() to keep all touchscreen properties together.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 .../platform/x86/x86-android-tablets/other.c  | 20 ++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index e3907812c8bc..95c5001004a1 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -38,6 +38,15 @@ static const struct software_node acer_b1_750_bma250e_node = {
 	.properties = acer_b1_750_bma250e_props,
 };
 
+static const struct property_entry acer_b1_750_novatek_props[] = {
+	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node acer_b1_750_novatek_node = {
+	.properties = acer_b1_750_novatek_props,
+};
+
 static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = {
 	{
 		/* Novatek NVT-ts touchscreen */
@@ -45,6 +54,7 @@ static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst =
 			.type = "nt11205-ts",
 			.addr = 0x34,
 			.dev_name = "NVT-ts",
+			.swnode = &acer_b1_750_novatek_node,
 		},
 		.adapter_path = "\\_SB_.I2C4",
 		.irq_data = {
@@ -74,16 +84,7 @@ static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst =
 	},
 };
 
-static struct gpiod_lookup_table acer_b1_750_nvt_ts_gpios = {
-	.dev_id = "i2c-NVT-ts",
-	.table = {
-		GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_LOW),
-		{ }
-	},
-};
-
 static struct gpiod_lookup_table * const acer_b1_750_gpios[] = {
-	&acer_b1_750_nvt_ts_gpios,
 	&int3496_reference_gpios,
 	NULL
 };
@@ -94,6 +95,7 @@ const struct x86_dev_info acer_b1_750_info __initconst = {
 	.pdev_info = int3496_pdevs,
 	.pdev_count = 1,
 	.gpiod_lookup_tables = acer_b1_750_gpios,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /*
-- 
2.51.0

[PATCH v3 05/19] platform/x86: x86-android-tablets: convert EDT devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for EDT touchscreens to using
PROPERTY_ENTRY_GPIO() to keep all touchscreen properties together.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 .../platform/x86/x86-android-tablets/other.c  | 28 +++++++++----------
 1 file changed, 13 insertions(+), 15 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index 95c5001004a1..0f3cc0ea877e 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -436,6 +436,17 @@ static const struct software_node nextbook_ares8a_accel_node = {
 	.properties = nextbook_ares8a_accel_props,
 };
 
+static const struct property_entry nextbook_ares8a_ft5416_props[] = {
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 800),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &cherryview_gpiochip_nodes[1], 25, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node nextbook_ares8a_ft5416_node = {
+	.properties = nextbook_ares8a_ft5416_props,
+};
+
 static const struct x86_i2c_client_info nextbook_ares8a_i2c_clients[] __initconst = {
 	{
 		/* Freescale MMA8653FC accelerometer */
@@ -452,7 +463,7 @@ static const struct x86_i2c_client_info nextbook_ares8a_i2c_clients[] __initcons
 			.type = "edt-ft5x06",
 			.addr = 0x38,
 			.dev_name = "ft5416",
-			.swnode = &nextbook_ares8_touchscreen_node,
+			.swnode = &nextbook_ares8a_ft5416_node,
 		},
 		.adapter_path = "\\_SB_.PCI0.I2C6",
 		.irq_data = {
@@ -466,23 +477,10 @@ static const struct x86_i2c_client_info nextbook_ares8a_i2c_clients[] __initcons
 	},
 };
 
-static struct gpiod_lookup_table nextbook_ares8a_ft5416_gpios = {
-	.dev_id = "i2c-ft5416",
-	.table = {
-		GPIO_LOOKUP("INT33FF:01", 25, "reset", GPIO_ACTIVE_LOW),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const nextbook_ares8a_gpios[] = {
-	&nextbook_ares8a_ft5416_gpios,
-	NULL
-};
-
 const struct x86_dev_info nextbook_ares8a_info __initconst = {
 	.i2c_client_info = nextbook_ares8a_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(nextbook_ares8a_i2c_clients),
-	.gpiod_lookup_tables = nextbook_ares8a_gpios,
+	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 };
 
 /*
-- 
2.51.0

[PATCH v3 06/19] platform/x86: x86-android-tablets: convert int3496 devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for int3496 devices to using
PROPERTY_ENTRY_GPIO().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
Changes in v3:
- Leave int3496_pdevs[] in shared-psy-info.c instead of moving it to
  other.c, it will also be used in the upcoming acer.c so it needs to
  stay shared
---
 .../platform/x86/x86-android-tablets/asus.c   | 37 ++++++++-----------
 .../platform/x86/x86-android-tablets/lenovo.c | 24 +++++++-----
 .../platform/x86/x86-android-tablets/other.c  | 13 +------
 .../x86/x86-android-tablets/shared-psy-info.c | 22 +++++------
 .../x86/x86-android-tablets/shared-psy-info.h |  2 -
 5 files changed, 43 insertions(+), 55 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/asus.c b/drivers/platform/x86/x86-android-tablets/asus.c
index 6c4468f4004b..ce581d161551 100644
--- a/drivers/platform/x86/x86-android-tablets/asus.c
+++ b/drivers/platform/x86/x86-android-tablets/asus.c
@@ -17,11 +17,17 @@
 #include "x86-android-tablets.h"
 
 /* Asus ME176C and TF103C tablets shared data */
-static struct gpiod_lookup_table int3496_gpo2_pin22_gpios = {
-	.dev_id = "intel-int3496",
-	.table = {
-		GPIO_LOOKUP("INT33FC:02", 22, "id", GPIO_ACTIVE_HIGH),
-		{ }
+static const struct property_entry asus_me176c_tf103c_int3496_props[] __initconst = {
+	PROPERTY_ENTRY_GPIO("id-gpios", &baytrail_gpiochip_nodes[2], 22, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst = {
+	{
+		/* For micro USB ID pin handling */
+		.name = "intel-int3496",
+		.id = PLATFORM_DEVID_NONE,
+		.properties = asus_me176c_tf103c_int3496_props,
 	},
 };
 
@@ -164,21 +170,15 @@ static const struct x86_serdev_info asus_me176c_serdevs[] __initconst = {
 	},
 };
 
-static struct gpiod_lookup_table * const asus_me176c_gpios[] = {
-	&int3496_gpo2_pin22_gpios,
-	NULL
-};
-
 const struct x86_dev_info asus_me176c_info __initconst = {
 	.i2c_client_info = asus_me176c_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(asus_me176c_i2c_clients),
-	.pdev_info = int3496_pdevs,
-	.pdev_count = 1,
+	.pdev_info = asus_me176c_tf103c_pdevs,
+	.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
 	.serdev_info = asus_me176c_serdevs,
 	.serdev_count = ARRAY_SIZE(asus_me176c_serdevs),
 	.gpio_button = &asus_me176c_tf103c_lid,
 	.gpio_button_count = 1,
-	.gpiod_lookup_tables = asus_me176c_gpios,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
@@ -296,19 +296,14 @@ static const struct x86_i2c_client_info asus_tf103c_i2c_clients[] __initconst =
 	},
 };
 
-static struct gpiod_lookup_table * const asus_tf103c_gpios[] = {
-	&int3496_gpo2_pin22_gpios,
-	NULL
-};
-
 const struct x86_dev_info asus_tf103c_info __initconst = {
 	.i2c_client_info = asus_tf103c_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(asus_tf103c_i2c_clients),
-	.pdev_info = int3496_pdevs,
-	.pdev_count = 1,
+	.pdev_info = asus_me176c_tf103c_pdevs,
+	.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
 	.gpio_button = &asus_me176c_tf103c_lid,
 	.gpio_button_count = 1,
-	.gpiod_lookup_tables = asus_tf103c_gpios,
 	.bat_swnode = &generic_lipo_4v2_battery_node,
 	.modules = bq24190_modules,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 49388266201b..db6337671357 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -366,12 +366,18 @@ static struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __init
 	},
 };
 
-static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_int3496_gpios = {
-	.dev_id = "intel-int3496",
-	.table = {
-		GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_LOW),
-		GPIO_LOOKUP("INT33FC:02", 24, "id", GPIO_ACTIVE_HIGH),
-		{ }
+static const struct property_entry lenovo_yoga_tab2_830_1050_int3496_props[] __initconst = {
+	PROPERTY_ENTRY_GPIO("mux-gpios", &baytrail_gpiochip_nodes[2], 1, GPIO_ACTIVE_LOW),
+	PROPERTY_ENTRY_GPIO("id-gpios", &baytrail_gpiochip_nodes[2], 24, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+static const struct platform_device_info lenovo_yoga_tab2_830_1050_pdevs[] __initconst = {
+	{
+		/* For micro USB ID pin handling */
+		.name = "intel-int3496",
+		.id = PLATFORM_DEVID_NONE,
+		.properties = lenovo_yoga_tab2_830_1050_int3496_props,
 	},
 };
 
@@ -389,7 +395,6 @@ static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_codec_gpios = {
 };
 
 static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
-	&lenovo_yoga_tab2_830_1050_int3496_gpios,
 	&lenovo_yoga_tab2_830_1050_codec_gpios,
 	NULL
 };
@@ -400,13 +405,14 @@ static void lenovo_yoga_tab2_830_1050_exit(void);
 const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
 	.i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients),
-	.pdev_info = int3496_pdevs,
-	.pdev_count = 1,
+	.pdev_info = lenovo_yoga_tab2_830_1050_pdevs,
+	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_pdevs),
 	.gpio_button = &lenovo_yoga_tab2_830_1050_lid,
 	.gpio_button_count = 1,
 	.gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = bq24190_modules,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_830_1050_init,
 	.exit = lenovo_yoga_tab2_830_1050_exit,
 };
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index 0f3cc0ea877e..2f12b68080ba 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -84,17 +84,11 @@ static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst =
 	},
 };
 
-static struct gpiod_lookup_table * const acer_b1_750_gpios[] = {
-	&int3496_reference_gpios,
-	NULL
-};
-
 const struct x86_dev_info acer_b1_750_info __initconst = {
 	.i2c_client_info = acer_b1_750_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(acer_b1_750_i2c_clients),
 	.pdev_info = int3496_pdevs,
 	.pdev_count = 1,
-	.gpiod_lookup_tables = acer_b1_750_gpios,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
@@ -407,17 +401,12 @@ static const struct x86_i2c_client_info nextbook_ares8_i2c_clients[] __initconst
 	},
 };
 
-static struct gpiod_lookup_table * const nextbook_ares8_gpios[] = {
-	&int3496_reference_gpios,
-	NULL
-};
-
 const struct x86_dev_info nextbook_ares8_info __initconst = {
 	.i2c_client_info = nextbook_ares8_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(nextbook_ares8_i2c_clients),
 	.pdev_info = int3496_pdevs,
 	.pdev_count = 1,
-	.gpiod_lookup_tables = nextbook_ares8_gpios,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /* Nextbook Ares 8A (CHT) tablets have an Android factory image with everything hardcoded */
diff --git a/drivers/platform/x86/x86-android-tablets/shared-psy-info.c b/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
index fe34cedb6257..6ebe282bda6e 100644
--- a/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
+++ b/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
@@ -9,12 +9,14 @@
  */
 
 #include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
 #include <linux/platform_device.h>
 #include <linux/power/bq24190_charger.h>
 #include <linux/property.h>
 #include <linux/regulator/machine.h>
 
 #include "shared-psy-info.h"
+#include "x86-android-tablets.h"
 
 /* Generic / shared charger / battery settings */
 const char * const tusb1211_chg_det_psy[] = { "tusb1211-charger-detect" };
@@ -156,21 +158,19 @@ const char * const bq24190_modules[] __initconst = {
 	NULL
 };
 
-/* Generic platform device array and GPIO lookup table for micro USB ID pin handling */
+static const struct property_entry int3496_reference_props[] __initconst = {
+	PROPERTY_ENTRY_GPIO("vbus-gpios", &baytrail_gpiochip_nodes[1], 15, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("mux-gpios", &baytrail_gpiochip_nodes[2], 1, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("id-gpios", &baytrail_gpiochip_nodes[2], 18, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+/* Generic pdevs array and gpio-lookups for micro USB ID pin handling */
 const struct platform_device_info int3496_pdevs[] __initconst = {
 	{
 		/* For micro USB ID pin handling */
 		.name = "intel-int3496",
 		.id = PLATFORM_DEVID_NONE,
-	},
-};
-
-struct gpiod_lookup_table int3496_reference_gpios = {
-	.dev_id = "intel-int3496",
-	.table = {
-		GPIO_LOOKUP("INT33FC:01", 15, "vbus", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:02", 18, "id", GPIO_ACTIVE_HIGH),
-		{ }
+		.properties = int3496_reference_props,
 	},
 };
diff --git a/drivers/platform/x86/x86-android-tablets/shared-psy-info.h b/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
index bcf9845ad275..b9cbc291aa4d 100644
--- a/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
+++ b/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
@@ -11,7 +11,6 @@
 #define __PDX86_SHARED_PSY_INFO_H
 
 struct bq24190_platform_data;
-struct gpiod_lookup_table;
 struct platform_device_info;
 struct software_node;
 
@@ -28,6 +27,5 @@ extern struct bq24190_platform_data bq24190_pdata;
 extern const char * const bq24190_modules[];
 
 extern const struct platform_device_info int3496_pdevs[];
-extern struct gpiod_lookup_table int3496_reference_gpios;
 
 #endif
-- 
2.51.0

[PATCH v3 07/19] platform/x86: x86-android-tablets: convert wm1502 devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for wm1502 devices to using
PROPERTY_ENTRY_GPIO().

Adding a swnode to the yt3 spi device changes the name of the SPI/codec
device and the sound/soc/intel/boards/bytcr_wm5102.c machine driver looks
up the code by name, update the machine driver to use the new name.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
Changes in v3:
- Add pinctrl_put() to error-exit paths in lenovo_yoga_tab2_830_1050_init_codec()
- Share arizona_gpiochip_node between yoga tablet2 and yoga tab3 settings
- Give lenovo_yt3_wm5102 swnode a name so that the codec SPI-dev gets a stable name
- Adjust sound/soc/intel/boards/bytcr_wm5102.c for the new SPI/codec dev-name
---
 .../platform/x86/x86-android-tablets/lenovo.c | 107 ++++++++++++------
 sound/soc/intel/boards/bytcr_wm5102.c         |   2 +-
 2 files changed, 76 insertions(+), 33 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index db6337671357..aaa946bb1e7c 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -60,6 +60,14 @@ static struct lp855x_platform_data lenovo_lp8557_reg_only_pdata = {
 	.initial_brightness = 128,
 };
 
+static const struct software_node arizona_gpiochip_node = {
+	.name = "arizona",
+};
+
+static const struct software_node crystalcove_gpiochip_node = {
+	.name = "gpio_crystalcove",
+};
+
 /* Lenovo Yoga Book X90F / X90L's Android factory image has everything hardcoded */
 
 static const struct property_entry lenovo_yb1_x90_goodix_props[] = {
@@ -383,19 +391,26 @@ static const struct platform_device_info lenovo_yoga_tab2_830_1050_pdevs[] __ini
 
 #define LENOVO_YOGA_TAB2_830_1050_CODEC_NAME "spi-10WM5102:00"
 
-static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_codec_gpios = {
-	.dev_id = LENOVO_YOGA_TAB2_830_1050_CODEC_NAME,
-	.table = {
-		GPIO_LOOKUP("gpio_crystalcove", 3, "reset", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:01", 23, "wlf,ldoena", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("arizona", 2, "wlf,spkvdd-ena", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("arizona", 4, "wlf,micd-pol", GPIO_ACTIVE_LOW),
-		{ }
-	},
+static const struct property_entry lenovo_yoga_tab2_830_1050_wm1502_props[] = {
+	PROPERTY_ENTRY_GPIO("reset-gpios",
+			    &crystalcove_gpiochip_node, 3, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("wlf,ldoena-gpios",
+			    &baytrail_gpiochip_nodes[1], 23, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("wlf,spkvdd-ena-gpios",
+			    &arizona_gpiochip_node, 2, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("wlf,micd-pol-gpios",
+			    &arizona_gpiochip_node, 4, GPIO_ACTIVE_LOW),
+	{ }
 };
 
-static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
-	&lenovo_yoga_tab2_830_1050_codec_gpios,
+static const struct software_node lenovo_yoga_tab2_830_1050_wm5102 = {
+	.properties = lenovo_yoga_tab2_830_1050_wm1502_props,
+};
+
+static const struct software_node *lenovo_yoga_tab2_830_1050_swnodes[] = {
+	&crystalcove_gpiochip_node,
+	&arizona_gpiochip_node,
+	&lenovo_yoga_tab2_830_1050_wm5102,
 	NULL
 };
 
@@ -409,7 +424,6 @@ const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_pdevs),
 	.gpio_button = &lenovo_yoga_tab2_830_1050_lid,
 	.gpio_button_count = 1,
-	.gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
@@ -469,6 +483,7 @@ static const struct pinctrl_map lenovo_yoga_tab2_830_1050_codec_pinctrl_map =
 	PIN_MAP_MUX_GROUP(LENOVO_YOGA_TAB2_830_1050_CODEC_NAME, "codec_32khz_clk",
 			  "INT33FC:02", "pmu_clk2_grp", "pmu_clk");
 
+static struct device *lenovo_yoga_tab2_830_1050_codec_dev;
 static struct pinctrl *lenovo_yoga_tab2_830_1050_codec_pinctrl;
 static struct sys_off_handler *lenovo_yoga_tab2_830_1050_sys_off_handler;
 
@@ -495,12 +510,26 @@ static int __init lenovo_yoga_tab2_830_1050_init_codec(void)
 		goto err_unregister_mappings;
 	}
 
-	/* We're done with the codec_dev now */
-	put_device(codec_dev);
+	ret = software_node_register_node_group(lenovo_yoga_tab2_830_1050_swnodes);
+	if (ret) {
+		ret = dev_err_probe(codec_dev, ret, "registering software nodes\n");
+		goto err_put_pinctrl;
+	}
 
+	ret = device_add_software_node(codec_dev, &lenovo_yoga_tab2_830_1050_wm5102);
+	if (ret) {
+		ret = dev_err_probe(codec_dev, ret, "adding software node\n");
+		goto err_unregister_swnodes;
+	}
+
+	lenovo_yoga_tab2_830_1050_codec_dev = codec_dev;
 	lenovo_yoga_tab2_830_1050_codec_pinctrl = pinctrl;
 	return 0;
 
+err_unregister_swnodes:
+	software_node_unregister_node_group(lenovo_yoga_tab2_830_1050_swnodes);
+err_put_pinctrl:
+	pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
 err_unregister_mappings:
 	pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
 err_put_device:
@@ -548,6 +577,12 @@ static void lenovo_yoga_tab2_830_1050_exit(void)
 {
 	unregister_sys_off_handler(lenovo_yoga_tab2_830_1050_sys_off_handler);
 
+	if (lenovo_yoga_tab2_830_1050_codec_dev) {
+		device_remove_software_node(lenovo_yoga_tab2_830_1050_codec_dev);
+		put_device(lenovo_yoga_tab2_830_1050_codec_dev);
+		software_node_unregister_node_group(lenovo_yoga_tab2_830_1050_swnodes);
+	}
+
 	if (lenovo_yoga_tab2_830_1050_codec_pinctrl) {
 		pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
 		pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
@@ -750,7 +785,6 @@ static struct gpiod_lookup_table lenovo_yoga_tab2_1380_fc_gpios = {
 };
 
 static struct gpiod_lookup_table * const lenovo_yoga_tab2_1380_gpios[] = {
-	&lenovo_yoga_tab2_830_1050_codec_gpios,
 	&lenovo_yoga_tab2_1380_fc_gpios,
 	NULL
 };
@@ -947,12 +981,34 @@ static struct arizona_pdata lenovo_yt3_wm5102_pdata = {
 	},
 };
 
+static const struct property_entry lenovo_yt3_wm1502_props[] = {
+	PROPERTY_ENTRY_GPIO("wlf,spkvdd-ena-gpios",
+			    &cherryview_gpiochip_nodes[0], 75, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("wlf,ldoena-gpios",
+			    &cherryview_gpiochip_nodes[0], 81, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &cherryview_gpiochip_nodes[0], 82, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("wlf,micd-pol-gpios", &arizona_gpiochip_node, 2, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+static const struct software_node lenovo_yt3_wm5102 = {
+	.properties = lenovo_yt3_wm1502_props,
+	.name = "wm5102",
+};
+
+static const struct software_node *lenovo_yt3_swnodes[] = {
+	&arizona_gpiochip_node,
+	&lenovo_yt3_wm5102,
+	NULL
+};
+
 static const struct x86_spi_dev_info lenovo_yt3_spi_devs[] __initconst = {
 	{
 		/* WM5102 codec */
 		.board_info = {
 			.modalias = "wm5102",
 			.platform_data = &lenovo_yt3_wm5102_pdata,
+			.swnode = &lenovo_yt3_wm5102,
 			.max_speed_hz = 5000000,
 		},
 		.ctrl_path = "\\_SB_.PCI0.SPI1",
@@ -999,31 +1055,18 @@ static int __init lenovo_yt3_init(struct device *dev)
 	intel_soc_pmic_exec_mipi_pmic_seq_element(0x6e, 0x9b, 0x02, 0xff);
 	intel_soc_pmic_exec_mipi_pmic_seq_element(0x6e, 0xa0, 0x02, 0xff);
 
+	ret = software_node_register_node_group(lenovo_yt3_swnodes);
+	if (ret)
+		return dev_err_probe(dev, ret, "registering software nodes\n");
+
 	return 0;
 }
 
-static struct gpiod_lookup_table lenovo_yt3_wm5102_gpios = {
-	.dev_id = "spi1.0",
-	.table = {
-		GPIO_LOOKUP("INT33FF:00", 75, "wlf,spkvdd-ena", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FF:00", 81, "wlf,ldoena", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FF:00", 82, "reset", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("arizona", 2, "wlf,micd-pol", GPIO_ACTIVE_HIGH),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const lenovo_yt3_gpios[] = {
-	&lenovo_yt3_wm5102_gpios,
-	NULL
-};
-
 const struct x86_dev_info lenovo_yt3_info __initconst = {
 	.i2c_client_info = lenovo_yt3_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(lenovo_yt3_i2c_clients),
 	.spi_dev_info = lenovo_yt3_spi_devs,
 	.spi_dev_count = ARRAY_SIZE(lenovo_yt3_spi_devs),
-	.gpiod_lookup_tables = lenovo_yt3_gpios,
 	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 	.init = lenovo_yt3_init,
 };
diff --git a/sound/soc/intel/boards/bytcr_wm5102.c b/sound/soc/intel/boards/bytcr_wm5102.c
index a6dfbcfdf74e..da0fdb8d677d 100644
--- a/sound/soc/intel/boards/bytcr_wm5102.c
+++ b/sound/soc/intel/boards/bytcr_wm5102.c
@@ -552,7 +552,7 @@ static int snd_byt_wm5102_mc_probe(struct platform_device *pdev)
 		acpi_dev_put(adev);
 	} else {
 		/* Special case for when the codec is missing from the DSTD */
-		strscpy(codec_name, "spi1.0", sizeof(codec_name));
+		strscpy(codec_name, "spi-wm5102", sizeof(codec_name));
 	}
 
 	codec_dev = bus_find_device_by_name(&spi_bus_type, NULL, codec_name);
-- 
2.51.0

[PATCH v3 08/19] platform/x86: x86-android-tablets: convert HID-I2C devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for HID-I2C touchscreens to
using PROPERTY_ENTRY_GPIO() to keep all touchscreen properties together.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 .../platform/x86/x86-android-tablets/other.c  | 32 +++----------------
 1 file changed, 4 insertions(+), 28 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index 2f12b68080ba..5309831243b3 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -571,6 +571,7 @@ const struct x86_dev_info whitelabel_tm800a550l_info __initconst = {
 static const struct property_entry vexia_edu_atla10_5v_touchscreen_props[] = {
 	PROPERTY_ENTRY_U32("hid-descr-addr", 0x0000),
 	PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 120),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_LOW),
 	{ }
 };
 
@@ -605,23 +606,10 @@ static const struct x86_i2c_client_info vexia_edu_atla10_5v_i2c_clients[] __init
 	}
 };
 
-static struct gpiod_lookup_table vexia_edu_atla10_5v_ft5416_gpios = {
-	.dev_id = "i2c-FTSC1000",
-	.table = {
-		GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_LOW),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const vexia_edu_atla10_5v_gpios[] = {
-	&vexia_edu_atla10_5v_ft5416_gpios,
-	NULL
-};
-
 const struct x86_dev_info vexia_edu_atla10_5v_info __initconst = {
 	.i2c_client_info = vexia_edu_atla10_5v_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(vexia_edu_atla10_5v_i2c_clients),
-	.gpiod_lookup_tables = vexia_edu_atla10_5v_gpios,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /*
@@ -657,6 +645,7 @@ static const struct software_node vexia_edu_atla10_9v_accel_node = {
 static const struct property_entry vexia_edu_atla10_9v_touchscreen_props[] = {
 	PROPERTY_ENTRY_U32("hid-descr-addr", 0x0000),
 	PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 120),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[0], 60, GPIO_ACTIVE_LOW),
 	{ }
 };
 
@@ -749,19 +738,6 @@ static const struct x86_serdev_info vexia_edu_atla10_9v_serdevs[] __initconst =
 	},
 };
 
-static struct gpiod_lookup_table vexia_edu_atla10_9v_ft5416_gpios = {
-	.dev_id = "i2c-FTSC1000",
-	.table = {
-		GPIO_LOOKUP("INT33FC:00", 60, "reset", GPIO_ACTIVE_LOW),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const vexia_edu_atla10_9v_gpios[] = {
-	&vexia_edu_atla10_9v_ft5416_gpios,
-	NULL
-};
-
 static int __init vexia_edu_atla10_9v_init(struct device *dev)
 {
 	struct pci_dev *pdev;
@@ -791,9 +767,9 @@ const struct x86_dev_info vexia_edu_atla10_9v_info __initconst = {
 	.i2c_client_count = ARRAY_SIZE(vexia_edu_atla10_9v_i2c_clients),
 	.serdev_info = vexia_edu_atla10_9v_serdevs,
 	.serdev_count = ARRAY_SIZE(vexia_edu_atla10_9v_serdevs),
-	.gpiod_lookup_tables = vexia_edu_atla10_9v_gpios,
 	.init = vexia_edu_atla10_9v_init,
 	.use_pci = true,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /*
-- 
2.51.0

[PATCH v3 09/19] platform/x86: x86-android-tablets: convert Yoga Tab2 fast charger to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for the fast charger device
to using PROPERTY_ENTRY_GPIO().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
Changes in v3:
- Make yoga-tab2-pro-1380-fastcharger.c propagate the fwnode set on
  the platform-device to the serdev it creates
- Mark lenovo_yoga_tab2_1380_fc_props[] __initconst
---
 .../lenovo/yoga-tab2-pro-1380-fastcharger.c   |  7 ++++++
 .../platform/x86/x86-android-tablets/lenovo.c | 23 +++++++------------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/platform/x86/lenovo/yoga-tab2-pro-1380-fastcharger.c b/drivers/platform/x86/lenovo/yoga-tab2-pro-1380-fastcharger.c
index 1b33c977f6d7..cca8e644f4e7 100644
--- a/drivers/platform/x86/lenovo/yoga-tab2-pro-1380-fastcharger.c
+++ b/drivers/platform/x86/lenovo/yoga-tab2-pro-1380-fastcharger.c
@@ -255,6 +255,13 @@ static int yt2_1380_fc_pdev_probe(struct platform_device *pdev)
 	if (!serdev)
 		return -ENOMEM;
 
+	/*
+	 * Propagate pdev-fwnode set by x86-android-tablets to serdev.
+	 * The pdev-fwnode is a managed node, so it will be auto-put on
+	 * serdev_device_put().
+	 */
+	device_set_node(&serdev->dev, fwnode_handle_get(dev_fwnode(&pdev->dev)));
+
 	ret = serdev_device_add(serdev);
 	if (ret) {
 		serdev_device_put(serdev);
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index aaa946bb1e7c..7d1808a3437f 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -741,11 +741,18 @@ static const struct x86_i2c_client_info lenovo_yoga_tab2_1380_i2c_clients[] __in
 	}
 };
 
+static const struct property_entry lenovo_yoga_tab2_1380_fc_props[] __initconst = {
+	PROPERTY_ENTRY_GPIO("uart3_txd-gpios", &baytrail_gpiochip_nodes[0], 57, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("uart3_rxd-gpios", &baytrail_gpiochip_nodes[0], 61, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
 static const struct platform_device_info lenovo_yoga_tab2_1380_pdevs[] __initconst = {
 	{
 		/* For the Tablet 2 Pro 1380's custom fast charging driver */
 		.name = "lenovo-yoga-tab2-pro-1380-fastcharger",
 		.id = PLATFORM_DEVID_NONE,
+		.properties = lenovo_yoga_tab2_1380_fc_props,
 	},
 };
 
@@ -775,20 +782,6 @@ static int __init lenovo_yoga_tab2_1380_init(struct device *dev)
 	return 0;
 }
 
-static struct gpiod_lookup_table lenovo_yoga_tab2_1380_fc_gpios = {
-	.dev_id = "serial0-0",
-	.table = {
-		GPIO_LOOKUP("INT33FC:00", 57, "uart3_txd", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:00", 61, "uart3_rxd", GPIO_ACTIVE_HIGH),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const lenovo_yoga_tab2_1380_gpios[] = {
-	&lenovo_yoga_tab2_1380_fc_gpios,
-	NULL
-};
-
 const struct x86_dev_info lenovo_yoga_tab2_1380_info __initconst = {
 	.i2c_client_info = lenovo_yoga_tab2_1380_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_i2c_clients),
@@ -796,9 +789,9 @@ const struct x86_dev_info lenovo_yoga_tab2_1380_info __initconst = {
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_pdevs),
 	.gpio_button = &lenovo_yoga_tab2_830_1050_lid,
 	.gpio_button_count = 1,
-	.gpiod_lookup_tables = lenovo_yoga_tab2_1380_gpios,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = lenovo_yoga_tab2_1380_modules,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_1380_init,
 	.exit = lenovo_yoga_tab2_830_1050_exit,
 };
-- 
2.51.0

Re: [PATCH v3 09/19] platform/x86: x86-android-tablets: convert Yoga Tab2 fast charger to GPIO references

[Andy Shevchenko]

On Fri, Sep 19, 2025 at 11:48 PM Hans de Goede <hansg@kernel.org> wrote:

> Now that gpiolib supports software nodes to describe GPIOs, switch the
> driver away from using GPIO lookup tables for the fast charger device
> to using PROPERTY_ENTRY_GPIO().

...

> +       /*
> +        * Propagate pdev-fwnode set by x86-android-tablets to serdev.
> +        * The pdev-fwnode is a managed node, so it will be auto-put on
> +        * serdev_device_put().
> +        */
> +       device_set_node(&serdev->dev, fwnode_handle_get(dev_fwnode(&pdev->dev)));

I would rather split these two

/* Comment about propagating... */
device_set_node(..., dev_fwnode(...));
/* Comment about reference counting */
fwnode_handle_get(dev_fwnode(&serdev->dev));

(note the parameter to fwnode_handle_get(), which seems to me aligned
with the explanation given).


-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v3 09/19] platform/x86: x86-android-tablets: convert Yoga Tab2 fast charger to GPIO references

[Hans de Goede]

Hi Andy,

On 20-Sep-25 1:05 PM, Andy Shevchenko wrote:
> On Fri, Sep 19, 2025 at 11:48 PM Hans de Goede <hansg@kernel.org> wrote:
> 
>> Now that gpiolib supports software nodes to describe GPIOs, switch the
>> driver away from using GPIO lookup tables for the fast charger device
>> to using PROPERTY_ENTRY_GPIO().
> 
> ...
> 
>> +       /*
>> +        * Propagate pdev-fwnode set by x86-android-tablets to serdev.
>> +        * The pdev-fwnode is a managed node, so it will be auto-put on
>> +        * serdev_device_put().
>> +        */
>> +       device_set_node(&serdev->dev, fwnode_handle_get(dev_fwnode(&pdev->dev)));
> 
> I would rather split these two
> 
> /* Comment about propagating... */
> device_set_node(..., dev_fwnode(...));
> /* Comment about reference counting */
> fwnode_handle_get(dev_fwnode(&serdev->dev));
> 
> (note the parameter to fwnode_handle_get(), which seems to me aligned
> with the explanation given).

Ack, noted.

I've made the requested changes for the upcoming v4.

Regards,

Hans

[PATCH v3 10/19] platform/x86: x86-android-tablets: remove support for GPIO lookup tables

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that everything that used the lookup tables has been switched to
using property entries to describe GPIOs, we can remove support for
registering and unregistering the lookup tables.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 drivers/platform/x86/x86-android-tablets/core.c           | 8 --------
 .../x86/x86-android-tablets/x86-android-tablets.h         | 2 --
 2 files changed, 10 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
index 7b5942010c78..1eb59c999baf 100644
--- a/drivers/platform/x86/x86-android-tablets/core.c
+++ b/drivers/platform/x86/x86-android-tablets/core.c
@@ -153,7 +153,6 @@ static struct spi_device **spi_devs;
 static struct platform_device **pdevs;
 static struct serdev_device **serdevs;
 static struct gpio_keys_button *buttons;
-static struct gpiod_lookup_table * const *gpiod_lookup_tables;
 static const struct software_node *bat_swnode;
 static const struct software_node **gpiochip_node_group;
 static void (*exit_handler)(void);
@@ -394,9 +393,6 @@ static void x86_android_tablet_remove(struct platform_device *pdev)
 
 	if (gpiochip_node_group)
 		software_node_unregister_node_group(gpiochip_node_group);
-
-	for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
-		gpiod_remove_lookup_table(gpiod_lookup_tables[i]);
 }
 
 static __init int x86_android_tablet_probe(struct platform_device *pdev)
@@ -420,10 +416,6 @@ static __init int x86_android_tablet_probe(struct platform_device *pdev)
 	for (i = 0; dev_info->modules && dev_info->modules[i]; i++)
 		request_module(dev_info->modules[i]);
 
-	gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
-	for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
-		gpiod_add_lookup_table(gpiod_lookup_tables[i]);
-
 	switch (dev_info->gpiochip_type) {
 	case X86_GPIOCHIP_BAYTRAIL:
 		gpiochip_node_group = baytrail_gpiochip_node_group;
diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
index a54d09408866..d037e3962a51 100644
--- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
+++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
@@ -17,7 +17,6 @@
 #include <linux/spi/spi.h>
 
 struct gpio_desc;
-struct gpiod_lookup_table;
 struct platform_device_info;
 struct software_node;
 
@@ -91,7 +90,6 @@ struct x86_gpio_button {
 struct x86_dev_info {
 	const char * const *modules;
 	const struct software_node *bat_swnode;
-	struct gpiod_lookup_table * const *gpiod_lookup_tables;
 	const struct x86_i2c_client_info *i2c_client_info;
 	const struct x86_spi_dev_info *spi_dev_info;
 	const struct platform_device_info *pdev_info;
-- 
2.51.0

[PATCH v3 11/19] platform/x86: x86-android-tablets: convert gpio_keys devices to GPIO references

[Hans de Goede]

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for gpio_keys devices to using
PROPERTY_ENTRY_GPIO().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 .../platform/x86/x86-android-tablets/asus.c   |  42 ++++--
 .../platform/x86/x86-android-tablets/core.c   |  44 ++----
 .../platform/x86/x86-android-tablets/lenovo.c |  79 ++++++----
 .../platform/x86/x86-android-tablets/other.c  | 138 +++++++++++-------
 .../x86-android-tablets/x86-android-tablets.h |  10 +-
 5 files changed, 177 insertions(+), 136 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/asus.c b/drivers/platform/x86/x86-android-tablets/asus.c
index ce581d161551..91245f1bfd87 100644
--- a/drivers/platform/x86/x86-android-tablets/asus.c
+++ b/drivers/platform/x86/x86-android-tablets/asus.c
@@ -10,7 +10,7 @@
 
 #include <linux/gpio/machine.h>
 #include <linux/gpio/property.h>
-#include <linux/input.h>
+#include <linux/input-event-codes.h>
 #include <linux/platform_device.h>
 
 #include "shared-psy-info.h"
@@ -31,17 +31,29 @@ static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst
 	},
 };
 
-static const struct x86_gpio_button asus_me176c_tf103c_lid __initconst = {
-	.button = {
-		.code = SW_LID,
-		.active_low = true,
-		.desc = "lid_sw",
-		.type = EV_SW,
-		.wakeup = true,
-		.debounce_interval = 50,
-	},
-	.chip = "INT33FC:02",
-	.pin = 12,
+static const struct software_node asus_me176c_tf103c_gpio_keys_node = {
+	.name = "lid_sw",
+};
+
+static const struct property_entry asus_me176c_tf103c_lid_props[] = {
+	PROPERTY_ENTRY_U32("linux,input-type", EV_SW),
+	PROPERTY_ENTRY_U32("linux,code", SW_LID),
+	PROPERTY_ENTRY_STRING("label", "lid_sw"),
+	PROPERTY_ENTRY_GPIO("gpios", &baytrail_gpiochip_nodes[2], 12, GPIO_ACTIVE_LOW),
+	PROPERTY_ENTRY_U32("debounce-interval", 50),
+	PROPERTY_ENTRY_BOOL("wakeup-source"),
+	{ }
+};
+
+static const struct software_node asus_me176c_tf103c_lid_node = {
+	.parent = &asus_me176c_tf103c_gpio_keys_node,
+	.properties = asus_me176c_tf103c_lid_props,
+};
+
+static const struct software_node *asus_me176c_tf103c_lid_swnodes[] = {
+	&asus_me176c_tf103c_gpio_keys_node,
+	&asus_me176c_tf103c_lid_node,
+	NULL
 };
 
 /* Asus ME176C tablets have an Android factory image with everything hardcoded */
@@ -177,8 +189,7 @@ const struct x86_dev_info asus_me176c_info __initconst = {
 	.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
 	.serdev_info = asus_me176c_serdevs,
 	.serdev_count = ARRAY_SIZE(asus_me176c_serdevs),
-	.gpio_button = &asus_me176c_tf103c_lid,
-	.gpio_button_count = 1,
+	.gpio_button_swnodes = asus_me176c_tf103c_lid_swnodes,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
@@ -301,8 +312,7 @@ const struct x86_dev_info asus_tf103c_info __initconst = {
 	.i2c_client_count = ARRAY_SIZE(asus_tf103c_i2c_clients),
 	.pdev_info = asus_me176c_tf103c_pdevs,
 	.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
-	.gpio_button = &asus_me176c_tf103c_lid,
-	.gpio_button_count = 1,
+	.gpio_button_swnodes = asus_me176c_tf103c_lid_swnodes,
 	.bat_swnode = &generic_lipo_4v2_battery_node,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
index 1eb59c999baf..955a2c83a9bf 100644
--- a/drivers/platform/x86/x86-android-tablets/core.c
+++ b/drivers/platform/x86/x86-android-tablets/core.c
@@ -152,7 +152,7 @@ static struct i2c_client **i2c_clients;
 static struct spi_device **spi_devs;
 static struct platform_device **pdevs;
 static struct serdev_device **serdevs;
-static struct gpio_keys_button *buttons;
+static const struct software_node **gpio_button_swnodes;
 static const struct software_node *bat_swnode;
 static const struct software_node **gpiochip_node_group;
 static void (*exit_handler)(void);
@@ -373,7 +373,6 @@ static void x86_android_tablet_remove(struct platform_device *pdev)
 		platform_device_unregister(pdevs[i]);
 
 	kfree(pdevs);
-	kfree(buttons);
 
 	for (i = spi_dev_count - 1; i >= 0; i--)
 		spi_unregister_device(spi_devs[i]);
@@ -388,6 +387,9 @@ static void x86_android_tablet_remove(struct platform_device *pdev)
 	if (exit_handler)
 		exit_handler();
 
+	if (gpio_button_swnodes)
+		software_node_unregister_node_group(gpio_button_swnodes);
+
 	if (bat_swnode)
 		software_node_unregister(bat_swnode);
 
@@ -514,38 +516,22 @@ static __init int x86_android_tablet_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (dev_info->gpio_button_count) {
-		struct gpio_keys_platform_data pdata = { };
-		struct gpio_desc *gpiod;
+	if (dev_info->gpio_button_swnodes) {
+		struct platform_device_info button_info = {
+			.name = "gpio-keys",
+			.id = PLATFORM_DEVID_AUTO,
+		};
 
-		buttons = kcalloc(dev_info->gpio_button_count, sizeof(*buttons), GFP_KERNEL);
-		if (!buttons) {
+		ret = software_node_register_node_group(dev_info->gpio_button_swnodes);
+		if (ret < 0) {
 			x86_android_tablet_remove(pdev);
-			return -ENOMEM;
+			return ret;
 		}
 
-		for (i = 0; i < dev_info->gpio_button_count; i++) {
-			ret = x86_android_tablet_get_gpiod(dev_info->gpio_button[i].chip,
-							   dev_info->gpio_button[i].pin,
-							   dev_info->gpio_button[i].button.desc,
-							   false, GPIOD_IN, &gpiod);
-			if (ret < 0) {
-				x86_android_tablet_remove(pdev);
-				return ret;
-			}
+		gpio_button_swnodes = dev_info->gpio_button_swnodes;
 
-			buttons[i] = dev_info->gpio_button[i].button;
-			buttons[i].gpio = desc_to_gpio(gpiod);
-			/* Release GPIO descriptor so that gpio-keys can request it */
-			devm_gpiod_put(&x86_android_tablet_device->dev, gpiod);
-		}
-
-		pdata.buttons = buttons;
-		pdata.nbuttons = dev_info->gpio_button_count;
-
-		pdevs[pdev_count] = platform_device_register_data(&pdev->dev, "gpio-keys",
-								  PLATFORM_DEVID_AUTO,
-								  &pdata, sizeof(pdata));
+		button_info.fwnode = software_node_fwnode(dev_info->gpio_button_swnodes[0]);
+		pdevs[pdev_count] = platform_device_register_full(&button_info);
 		if (IS_ERR(pdevs[pdev_count])) {
 			ret = PTR_ERR(pdevs[pdev_count]);
 			x86_android_tablet_remove(pdev);
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 7d1808a3437f..9a28216642c3 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -13,6 +13,7 @@
 #include <linux/efi.h>
 #include <linux/gpio/machine.h>
 #include <linux/gpio/property.h>
+#include <linux/input-event-codes.h>
 #include <linux/mfd/arizona/pdata.h>
 #include <linux/mfd/arizona/registers.h>
 #include <linux/mfd/intel_soc_pmic.h>
@@ -207,17 +208,34 @@ static const struct x86_serdev_info lenovo_yb1_x90_serdevs[] __initconst = {
 	},
 };
 
-static const struct x86_gpio_button lenovo_yb1_x90_lid __initconst = {
-	.button = {
-		.code = SW_LID,
-		.active_low = true,
-		.desc = "lid_sw",
-		.type = EV_SW,
-		.wakeup = true,
-		.debounce_interval = 50,
-	},
-	.chip = "INT33FF:02",
-	.pin = 19,
+/*
+ * Software node attached to gpio-keys device representing the LID and
+ * serving as a parent to software nodes representing individual keys/buttons
+ * as required by the device tree binding.
+ */
+static const struct software_node lenovo_lid_gpio_keys_node = {
+	.name = "lid_sw",
+};
+
+static const struct property_entry lenovo_yb1_x90_lid_props[] = {
+	PROPERTY_ENTRY_U32("linux,input-type", EV_SW),
+	PROPERTY_ENTRY_U32("linux,code", SW_LID),
+	PROPERTY_ENTRY_STRING("label", "lid_sw"),
+	PROPERTY_ENTRY_GPIO("gpios", &cherryview_gpiochip_nodes[2], 19, GPIO_ACTIVE_LOW),
+	PROPERTY_ENTRY_U32("debounce-interval", 50),
+	PROPERTY_ENTRY_BOOL("wakeup-source"),
+	{ }
+};
+
+static const struct software_node lenovo_yb1_x90_lid_node = {
+	.parent = &lenovo_lid_gpio_keys_node,
+	.properties = lenovo_yb1_x90_lid_props,
+};
+
+static const struct software_node *lenovo_yb1_x90_lid_swnodes[] = {
+	&lenovo_lid_gpio_keys_node,
+	&lenovo_yb1_x90_lid_node,
+	NULL
 };
 
 static int __init lenovo_yb1_x90_init(struct device *dev)
@@ -246,8 +264,7 @@ const struct x86_dev_info lenovo_yogabook_x90_info __initconst = {
 	.pdev_count = ARRAY_SIZE(lenovo_yb1_x90_pdevs),
 	.serdev_info = lenovo_yb1_x90_serdevs,
 	.serdev_count = ARRAY_SIZE(lenovo_yb1_x90_serdevs),
-	.gpio_button = &lenovo_yb1_x90_lid,
-	.gpio_button_count = 1,
+	.gpio_button_swnodes = lenovo_yb1_x90_lid_swnodes,
 	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 	.init = lenovo_yb1_x90_init,
 };
@@ -284,17 +301,25 @@ static const struct software_node lenovo_yoga_tab2_830_1050_bq24190_node = {
 	.properties = lenovo_yoga_tab2_830_1050_bq24190_props,
 };
 
-static const struct x86_gpio_button lenovo_yoga_tab2_830_1050_lid __initconst = {
-	.button = {
-		.code = SW_LID,
-		.active_low = true,
-		.desc = "lid_sw",
-		.type = EV_SW,
-		.wakeup = true,
-		.debounce_interval = 50,
-	},
-	.chip = "INT33FC:02",
-	.pin = 26,
+static const struct property_entry lenovo_yoga_tab2_830_1050_lid_props[] = {
+	PROPERTY_ENTRY_U32("linux,input-type", EV_SW),
+	PROPERTY_ENTRY_U32("linux,code", SW_LID),
+	PROPERTY_ENTRY_STRING("label", "lid_sw"),
+	PROPERTY_ENTRY_GPIO("gpios", &baytrail_gpiochip_nodes[2], 26, GPIO_ACTIVE_LOW),
+	PROPERTY_ENTRY_U32("debounce-interval", 50),
+	PROPERTY_ENTRY_BOOL("wakeup-source"),
+	{ }
+};
+
+static const struct software_node lenovo_yoga_tab2_830_1050_lid_node = {
+	.parent = &lenovo_lid_gpio_keys_node,
+	.properties = lenovo_yoga_tab2_830_1050_lid_props,
+};
+
+static const struct software_node *lenovo_yoga_tab2_830_1050_lid_swnodes[] = {
+	&lenovo_lid_gpio_keys_node,
+	&lenovo_yoga_tab2_830_1050_lid_node,
+	NULL
 };
 
 /* This gets filled by lenovo_yoga_tab2_830_1050_init() */
@@ -422,8 +447,7 @@ const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
 	.i2c_client_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients),
 	.pdev_info = lenovo_yoga_tab2_830_1050_pdevs,
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_pdevs),
-	.gpio_button = &lenovo_yoga_tab2_830_1050_lid,
-	.gpio_button_count = 1,
+	.gpio_button_swnodes = lenovo_yoga_tab2_830_1050_lid_swnodes,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
@@ -787,8 +811,7 @@ const struct x86_dev_info lenovo_yoga_tab2_1380_info __initconst = {
 	.i2c_client_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_i2c_clients),
 	.pdev_info = lenovo_yoga_tab2_1380_pdevs,
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_pdevs),
-	.gpio_button = &lenovo_yoga_tab2_830_1050_lid,
-	.gpio_button_count = 1,
+	.gpio_button_swnodes = lenovo_yoga_tab2_830_1050_lid_swnodes,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = lenovo_yoga_tab2_1380_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index 5309831243b3..1362f4167e3d 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -11,7 +11,7 @@
 #include <linux/acpi.h>
 #include <linux/gpio/machine.h>
 #include <linux/gpio/property.h>
-#include <linux/input.h>
+#include <linux/input-event-codes.h>
 #include <linux/leds.h>
 #include <linux/pci.h>
 #include <linux/platform_device.h>
@@ -98,22 +98,32 @@ const struct x86_dev_info acer_b1_750_info __initconst = {
  * which is not described in the ACPI tables in anyway.
  * Use the x86-android-tablets infra to create a gpio-keys device for this.
  */
-static const struct x86_gpio_button advantech_mica_071_button __initconst = {
-	.button = {
-		.code = KEY_PROG1,
-		.active_low = true,
-		.desc = "prog1_key",
-		.type = EV_KEY,
-		.wakeup = false,
-		.debounce_interval = 50,
-	},
-	.chip = "INT33FC:00",
-	.pin = 2,
+static const struct software_node advantech_mica_071_gpio_keys_node = {
+	.name = "prog1_key",
+};
+
+static const struct property_entry advantech_mica_071_prog1_key_props[] = {
+	PROPERTY_ENTRY_U32("linux,code", KEY_PROG1),
+	PROPERTY_ENTRY_STRING("label", "prog1_key"),
+	PROPERTY_ENTRY_GPIO("gpios", &baytrail_gpiochip_nodes[0], 2, GPIO_ACTIVE_LOW),
+	PROPERTY_ENTRY_U32("debounce-interval", 50),
+	{ }
+};
+
+static const struct software_node advantech_mica_071_prog1_key_node = {
+	.parent = &advantech_mica_071_gpio_keys_node,
+	.properties = advantech_mica_071_prog1_key_props,
+};
+
+static const struct software_node *advantech_mica_071_button_swnodes[] = {
+	&advantech_mica_071_gpio_keys_node,
+	&advantech_mica_071_prog1_key_node,
+	NULL
 };
 
 const struct x86_dev_info advantech_mica_071_info __initconst = {
-	.gpio_button = &advantech_mica_071_button,
-	.gpio_button_count = 1,
+	.gpio_button_swnodes = advantech_mica_071_button_swnodes,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /*
@@ -209,36 +219,46 @@ const struct x86_dev_info chuwi_hi8_info __initconst = {
  * in the button row with the power + volume-buttons labeled P and F.
  * Use the x86-android-tablets infra to create a gpio-keys device for these.
  */
-static const struct x86_gpio_button cyberbook_t116_buttons[] __initconst = {
-	{
-		.button = {
-			.code = KEY_PROG1,
-			.active_low = true,
-			.desc = "prog1_key",
-			.type = EV_KEY,
-			.wakeup = false,
-			.debounce_interval = 50,
-		},
-		.chip = "INT33FF:00",
-		.pin = 30,
-	},
-	{
-		.button = {
-			.code = KEY_PROG2,
-			.active_low = true,
-			.desc = "prog2_key",
-			.type = EV_KEY,
-			.wakeup = false,
-			.debounce_interval = 50,
-		},
-		.chip = "INT33FF:03",
-		.pin = 48,
-	},
+static const struct software_node cyberbook_t116_gpio_keys_node = {
+	.name = "prog_keys",
+};
+
+static const struct property_entry cyberbook_t116_prog1_key_props[] = {
+	PROPERTY_ENTRY_U32("linux,code", KEY_PROG1),
+	PROPERTY_ENTRY_STRING("label", "prog1_key"),
+	PROPERTY_ENTRY_GPIO("gpios", &cherryview_gpiochip_nodes[0], 30, GPIO_ACTIVE_LOW),
+	PROPERTY_ENTRY_U32("debounce-interval", 50),
+	{ }
+};
+
+static const struct software_node cyberbook_t116_prog1_key_node = {
+	.parent = &cyberbook_t116_gpio_keys_node,
+	.properties = cyberbook_t116_prog1_key_props,
+};
+
+static const struct property_entry cyberbook_t116_prog2_key_props[] = {
+	PROPERTY_ENTRY_U32("linux,code", KEY_PROG2),
+	PROPERTY_ENTRY_STRING("label", "prog2_key"),
+	PROPERTY_ENTRY_GPIO("gpios", &cherryview_gpiochip_nodes[3], 48, GPIO_ACTIVE_LOW),
+	PROPERTY_ENTRY_U32("debounce-interval", 50),
+	{ }
+};
+
+static const struct software_node cyberbook_t116_prog2_key_node = {
+	.parent = &cyberbook_t116_gpio_keys_node,
+	.properties = cyberbook_t116_prog2_key_props,
+};
+
+static const struct software_node *cyberbook_t116_buttons_swnodes[] = {
+	&cyberbook_t116_gpio_keys_node,
+	&cyberbook_t116_prog1_key_node,
+	&cyberbook_t116_prog2_key_node,
+	NULL
 };
 
 const struct x86_dev_info cyberbook_t116_info __initconst = {
-	.gpio_button = cyberbook_t116_buttons,
-	.gpio_button_count = ARRAY_SIZE(cyberbook_t116_buttons),
+	.gpio_button_swnodes = cyberbook_t116_buttons_swnodes,
+	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 };
 
 #define CZC_EC_EXTRA_PORT	0x68
@@ -478,22 +498,32 @@ const struct x86_dev_info nextbook_ares8a_info __initconst = {
  * This button has a WMI interface, but that is broken. Instead of trying to
  * use the broken WMI interface, instantiate a gpio-keys device for this.
  */
-static const struct x86_gpio_button peaq_c1010_button __initconst = {
-	.button = {
-		.code = KEY_SOUND,
-		.active_low = true,
-		.desc = "dolby_key",
-		.type = EV_KEY,
-		.wakeup = false,
-		.debounce_interval = 50,
-	},
-	.chip = "INT33FC:00",
-	.pin = 3,
+static const struct software_node peaq_c1010_gpio_keys_node = {
+	.name = "gpio_keys",
+};
+
+static const struct property_entry peaq_c1010_dolby_key_props[] = {
+	PROPERTY_ENTRY_U32("linux,code", KEY_SOUND),
+	PROPERTY_ENTRY_STRING("label", "dolby_key"),
+	PROPERTY_ENTRY_GPIO("gpios", &baytrail_gpiochip_nodes[0], 3, GPIO_ACTIVE_LOW),
+	PROPERTY_ENTRY_U32("debounce-interval", 50),
+	{ }
+};
+
+static const struct software_node peaq_c1010_dolby_key_node = {
+	.parent = &peaq_c1010_gpio_keys_node,
+	.properties = peaq_c1010_dolby_key_props,
+};
+
+static const struct software_node *peaq_c1010_button_swnodes[] = {
+	&peaq_c1010_gpio_keys_node,
+	&peaq_c1010_dolby_key_node,
+	NULL
 };
 
 const struct x86_dev_info peaq_c1010_info __initconst = {
-	.gpio_button = &peaq_c1010_button,
-	.gpio_button_count = 1,
+	.gpio_button_swnodes = peaq_c1010_button_swnodes,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
 
 /*
diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
index d037e3962a51..f4a67a9b74ea 100644
--- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
+++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
@@ -11,7 +11,6 @@
 #define __PDX86_X86_ANDROID_TABLETS_H
 
 #include <linux/gpio/consumer.h>
-#include <linux/gpio_keys.h>
 #include <linux/i2c.h>
 #include <linux/irqdomain_defs.h>
 #include <linux/spi/spi.h>
@@ -81,12 +80,6 @@ struct x86_serdev_info {
 	const char *serdev_hid;
 };
 
-struct x86_gpio_button {
-	struct gpio_keys_button button;
-	const char *chip;
-	int pin;
-};
-
 struct x86_dev_info {
 	const char * const *modules;
 	const struct software_node *bat_swnode;
@@ -94,12 +87,11 @@ struct x86_dev_info {
 	const struct x86_spi_dev_info *spi_dev_info;
 	const struct platform_device_info *pdev_info;
 	const struct x86_serdev_info *serdev_info;
-	const struct x86_gpio_button *gpio_button;
+	const struct software_node **gpio_button_swnodes;
 	int i2c_client_count;
 	int spi_dev_count;
 	int pdev_count;
 	int serdev_count;
-	int gpio_button_count;
 	int (*init)(struct device *dev);
 	void (*exit)(void);
 	bool use_pci;
-- 
2.51.0

[PATCH v3 12/19] platform/x86: x86-android-tablets: replace bat_swnode with swnode_group

[Hans de Goede]

Now that we are using software-nodes are used in more places it is
useful to have a more generic mechanism to have the core code register
software-nodes.

Replace the bat_swnode registration mechanism with a more generic
swnode_group registration mechanism.

Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 drivers/platform/x86/x86-android-tablets/asus.c      |  4 ++--
 drivers/platform/x86/x86-android-tablets/core.c      | 12 ++++++------
 drivers/platform/x86/x86-android-tablets/lenovo.c    |  4 ++--
 .../x86/x86-android-tablets/shared-psy-info.c        | 10 ++++++++++
 .../x86/x86-android-tablets/shared-psy-info.h        |  4 ++++
 .../x86/x86-android-tablets/x86-android-tablets.h    |  2 +-
 6 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/asus.c b/drivers/platform/x86/x86-android-tablets/asus.c
index 91245f1bfd87..39eb2f9dc031 100644
--- a/drivers/platform/x86/x86-android-tablets/asus.c
+++ b/drivers/platform/x86/x86-android-tablets/asus.c
@@ -190,7 +190,7 @@ const struct x86_dev_info asus_me176c_info __initconst = {
 	.serdev_info = asus_me176c_serdevs,
 	.serdev_count = ARRAY_SIZE(asus_me176c_serdevs),
 	.gpio_button_swnodes = asus_me176c_tf103c_lid_swnodes,
-	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
+	.swnode_group = generic_lipo_hv_4v35_battery_swnodes,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
@@ -313,7 +313,7 @@ const struct x86_dev_info asus_tf103c_info __initconst = {
 	.pdev_info = asus_me176c_tf103c_pdevs,
 	.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
 	.gpio_button_swnodes = asus_me176c_tf103c_lid_swnodes,
-	.bat_swnode = &generic_lipo_4v2_battery_node,
+	.swnode_group = generic_lipo_4v2_battery_swnodes,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 };
diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
index 955a2c83a9bf..5675e888d84f 100644
--- a/drivers/platform/x86/x86-android-tablets/core.c
+++ b/drivers/platform/x86/x86-android-tablets/core.c
@@ -153,7 +153,7 @@ static struct spi_device **spi_devs;
 static struct platform_device **pdevs;
 static struct serdev_device **serdevs;
 static const struct software_node **gpio_button_swnodes;
-static const struct software_node *bat_swnode;
+static const struct software_node **swnode_group;
 static const struct software_node **gpiochip_node_group;
 static void (*exit_handler)(void);
 
@@ -390,8 +390,8 @@ static void x86_android_tablet_remove(struct platform_device *pdev)
 	if (gpio_button_swnodes)
 		software_node_unregister_node_group(gpio_button_swnodes);
 
-	if (bat_swnode)
-		software_node_unregister(bat_swnode);
+	if (swnode_group)
+		software_node_unregister_node_group(swnode_group);
 
 	if (gpiochip_node_group)
 		software_node_unregister_node_group(gpiochip_node_group);
@@ -436,13 +436,13 @@ static __init int x86_android_tablet_probe(struct platform_device *pdev)
 			return ret;
 	}
 
-	if (dev_info->bat_swnode) {
-		ret = software_node_register(dev_info->bat_swnode);
+	if (dev_info->swnode_group) {
+		ret = software_node_register_node_group(dev_info->swnode_group);
 		if (ret) {
 			x86_android_tablet_remove(pdev);
 			return ret;
 		}
-		bat_swnode = dev_info->bat_swnode;
+		swnode_group = dev_info->swnode_group;
 	}
 
 	if (dev_info->init) {
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 9a28216642c3..66617f6ff13e 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -448,7 +448,7 @@ const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
 	.pdev_info = lenovo_yoga_tab2_830_1050_pdevs,
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_pdevs),
 	.gpio_button_swnodes = lenovo_yoga_tab2_830_1050_lid_swnodes,
-	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
+	.swnode_group = generic_lipo_hv_4v35_battery_swnodes,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_830_1050_init,
@@ -812,7 +812,7 @@ const struct x86_dev_info lenovo_yoga_tab2_1380_info __initconst = {
 	.pdev_info = lenovo_yoga_tab2_1380_pdevs,
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_pdevs),
 	.gpio_button_swnodes = lenovo_yoga_tab2_830_1050_lid_swnodes,
-	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
+	.swnode_group = generic_lipo_hv_4v35_battery_swnodes,
 	.modules = lenovo_yoga_tab2_1380_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_1380_init,
diff --git a/drivers/platform/x86/x86-android-tablets/shared-psy-info.c b/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
index 6ebe282bda6e..62f41c14e6ba 100644
--- a/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
+++ b/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
@@ -113,6 +113,11 @@ const struct software_node generic_lipo_4v2_battery_node = {
 	.properties = generic_lipo_4v2_battery_props,
 };
 
+const struct software_node *generic_lipo_4v2_battery_swnodes[] = {
+	&generic_lipo_4v2_battery_node,
+	NULL
+};
+
 /* LiPo HighVoltage (max 4.35V) settings used by most devs with a HV battery */
 static const struct property_entry generic_lipo_hv_4v35_battery_props[] = {
 	PROPERTY_ENTRY_STRING("compatible", "simple-battery"),
@@ -133,6 +138,11 @@ const struct software_node generic_lipo_hv_4v35_battery_node = {
 	.properties = generic_lipo_hv_4v35_battery_props,
 };
 
+const struct software_node *generic_lipo_hv_4v35_battery_swnodes[] = {
+	&generic_lipo_hv_4v35_battery_node,
+	NULL
+};
+
 /* For enabling the bq24190 5V boost based on id-pin */
 static struct regulator_consumer_supply intel_int3496_consumer = {
 	.supply = "vbus",
diff --git a/drivers/platform/x86/x86-android-tablets/shared-psy-info.h b/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
index b9cbc291aa4d..e5ba1c65d62b 100644
--- a/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
+++ b/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
@@ -20,8 +20,12 @@ extern const char * const bq25890_psy[];
 
 extern const struct software_node fg_bq24190_supply_node;
 extern const struct software_node fg_bq25890_supply_node;
+
 extern const struct software_node generic_lipo_4v2_battery_node;
+extern const struct software_node *generic_lipo_4v2_battery_swnodes[];
+
 extern const struct software_node generic_lipo_hv_4v35_battery_node;
+extern const struct software_node *generic_lipo_hv_4v35_battery_swnodes[];
 
 extern struct bq24190_platform_data bq24190_pdata;
 extern const char * const bq24190_modules[];
diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
index f4a67a9b74ea..4bf4bcdf50c0 100644
--- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
+++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
@@ -82,7 +82,7 @@ struct x86_serdev_info {
 
 struct x86_dev_info {
 	const char * const *modules;
-	const struct software_node *bat_swnode;
+	const struct software_node **swnode_group;
 	const struct x86_i2c_client_info *i2c_client_info;
 	const struct x86_spi_dev_info *spi_dev_info;
 	const struct platform_device_info *pdev_info;
-- 
2.51.0

Re: [PATCH v3 12/19] platform/x86: x86-android-tablets: replace bat_swnode with swnode_group

[Dmitry Torokhov]

On Fri, Sep 19, 2025 at 10:47:35PM +0200, Hans de Goede wrote:
> Now that we are using software-nodes are used in more places it is
> useful to have a more generic mechanism to have the core code register
> software-nodes.
> 
> Replace the bat_swnode registration mechanism with a more generic
> swnode_group registration mechanism.
> 
> Signed-off-by: Hans de Goede <hansg@kernel.org>

Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

>  
>  struct x86_dev_info {
>  	const char * const *modules;
> -	const struct software_node *bat_swnode;
> +	const struct software_node **swnode_group;

Maybe add TODO for the next release to make it

	const struct software_node * const *swnode_group;

? Greg has queued the patch to software_node_[un]register_node_group()
to take const pointer to const pointers:

https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?h=driver-core-next&id=292cb391479d50f4379a0abab34324de92c82a92

Thanks.

-- 
Dmitry

Re: [PATCH v3 12/19] platform/x86: x86-android-tablets: replace bat_swnode with swnode_group

[Andy Shevchenko]

On Fri, Sep 19, 2025 at 11:48 PM Hans de Goede <hansg@kernel.org> wrote:
>
> Now that we are using software-nodes are used in more places it is
> useful to have a more generic mechanism to have the core code register
> software-nodes.
>
> Replace the bat_swnode registration mechanism with a more generic
> swnode_group registration mechanism.

...

> -       if (bat_swnode)
> -               software_node_unregister(bat_swnode);

> +       if (swnode_group)

Now this check is a dup and hence redundant.

> +               software_node_unregister_node_group(swnode_group);

...

> -       if (dev_info->bat_swnode) {
> -               ret = software_node_register(dev_info->bat_swnode);
> +       if (dev_info->swnode_group) {

Ditto.

> +               ret = software_node_register_node_group(dev_info->swnode_group);
>                 if (ret) {
>                         x86_android_tablet_remove(pdev);
>                         return ret;
>                 }
> -               bat_swnode = dev_info->bat_swnode;
> +               swnode_group = dev_info->swnode_group;
>         }


-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v3 12/19] platform/x86: x86-android-tablets: replace bat_swnode with swnode_group

[Hans de Goede]

Hi Andy,

On 20-Sep-25 1:09 PM, Andy Shevchenko wrote:
> On Fri, Sep 19, 2025 at 11:48 PM Hans de Goede <hansg@kernel.org> wrote:
>>
>> Now that we are using software-nodes are used in more places it is
>> useful to have a more generic mechanism to have the core code register
>> software-nodes.
>>
>> Replace the bat_swnode registration mechanism with a more generic
>> swnode_group registration mechanism.
> 
> ...
> 
>> -       if (bat_swnode)
>> -               software_node_unregister(bat_swnode);
> 
>> +       if (swnode_group)
> 
> Now this check is a dup and hence redundant.

Good point, the same goes for the other 2 already
existing software_node_unregister() calls which pattern
this change is following.

So instead of fixing this in this commit I'm going to
add in a follow-up commit to fix all 3 cases.

> 
>> +               software_node_unregister_node_group(swnode_group);
> 
> ...
> 
>> -       if (dev_info->bat_swnode) {
>> -               ret = software_node_register(dev_info->bat_swnode);
>> +       if (dev_info->swnode_group) {
> 
> Ditto.

Same here, I'll also fix this in a follow-up commit to this patch,
to make the same change to all 3 used swnode-groups in one go.

I'll post a v4 with this changed soon.

Regards,

Hans




> 
>> +               ret = software_node_register_node_group(dev_info->swnode_group);
>>                 if (ret) {
>>                         x86_android_tablet_remove(pdev);
>>                         return ret;
>>                 }
>> -               bat_swnode = dev_info->bat_swnode;
>> +               swnode_group = dev_info->swnode_group;
>>         }
> 
> 

[PATCH v3 13/19] platform/x86: x86-android-tablets: use swnode_group instead of manual registering

[Hans de Goede]

Replace manually calling software_node_register_node_group() from init()
with the new swnode_group registration mechanism.

Note this also fixes a missing software_node_unregister_node_group()
for lenovo_yt3_swnodes.

Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 .../platform/x86/x86-android-tablets/lenovo.c | 21 +++++--------------
 .../platform/x86/x86-android-tablets/other.c  | 14 ++-----------
 2 files changed, 7 insertions(+), 28 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 66617f6ff13e..1f325b2947ab 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -436,6 +436,7 @@ static const struct software_node *lenovo_yoga_tab2_830_1050_swnodes[] = {
 	&crystalcove_gpiochip_node,
 	&arizona_gpiochip_node,
 	&lenovo_yoga_tab2_830_1050_wm5102,
+	&generic_lipo_hv_4v35_battery_node,
 	NULL
 };
 
@@ -448,7 +449,7 @@ const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
 	.pdev_info = lenovo_yoga_tab2_830_1050_pdevs,
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_pdevs),
 	.gpio_button_swnodes = lenovo_yoga_tab2_830_1050_lid_swnodes,
-	.swnode_group = generic_lipo_hv_4v35_battery_swnodes,
+	.swnode_group = lenovo_yoga_tab2_830_1050_swnodes,
 	.modules = bq24190_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_830_1050_init,
@@ -534,24 +535,16 @@ static int __init lenovo_yoga_tab2_830_1050_init_codec(void)
 		goto err_unregister_mappings;
 	}
 
-	ret = software_node_register_node_group(lenovo_yoga_tab2_830_1050_swnodes);
-	if (ret) {
-		ret = dev_err_probe(codec_dev, ret, "registering software nodes\n");
-		goto err_put_pinctrl;
-	}
-
 	ret = device_add_software_node(codec_dev, &lenovo_yoga_tab2_830_1050_wm5102);
 	if (ret) {
 		ret = dev_err_probe(codec_dev, ret, "adding software node\n");
-		goto err_unregister_swnodes;
+		goto err_put_pinctrl;
 	}
 
 	lenovo_yoga_tab2_830_1050_codec_dev = codec_dev;
 	lenovo_yoga_tab2_830_1050_codec_pinctrl = pinctrl;
 	return 0;
 
-err_unregister_swnodes:
-	software_node_unregister_node_group(lenovo_yoga_tab2_830_1050_swnodes);
 err_put_pinctrl:
 	pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
 err_unregister_mappings:
@@ -604,7 +597,6 @@ static void lenovo_yoga_tab2_830_1050_exit(void)
 	if (lenovo_yoga_tab2_830_1050_codec_dev) {
 		device_remove_software_node(lenovo_yoga_tab2_830_1050_codec_dev);
 		put_device(lenovo_yoga_tab2_830_1050_codec_dev);
-		software_node_unregister_node_group(lenovo_yoga_tab2_830_1050_swnodes);
 	}
 
 	if (lenovo_yoga_tab2_830_1050_codec_pinctrl) {
@@ -812,7 +804,7 @@ const struct x86_dev_info lenovo_yoga_tab2_1380_info __initconst = {
 	.pdev_info = lenovo_yoga_tab2_1380_pdevs,
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_pdevs),
 	.gpio_button_swnodes = lenovo_yoga_tab2_830_1050_lid_swnodes,
-	.swnode_group = generic_lipo_hv_4v35_battery_swnodes,
+	.swnode_group = lenovo_yoga_tab2_830_1050_swnodes,
 	.modules = lenovo_yoga_tab2_1380_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_1380_init,
@@ -1071,10 +1063,6 @@ static int __init lenovo_yt3_init(struct device *dev)
 	intel_soc_pmic_exec_mipi_pmic_seq_element(0x6e, 0x9b, 0x02, 0xff);
 	intel_soc_pmic_exec_mipi_pmic_seq_element(0x6e, 0xa0, 0x02, 0xff);
 
-	ret = software_node_register_node_group(lenovo_yt3_swnodes);
-	if (ret)
-		return dev_err_probe(dev, ret, "registering software nodes\n");
-
 	return 0;
 }
 
@@ -1083,6 +1071,7 @@ const struct x86_dev_info lenovo_yt3_info __initconst = {
 	.i2c_client_count = ARRAY_SIZE(lenovo_yt3_i2c_clients),
 	.spi_dev_info = lenovo_yt3_spi_devs,
 	.spi_dev_count = ARRAY_SIZE(lenovo_yt3_spi_devs),
+	.swnode_group = lenovo_yt3_swnodes,
 	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 	.init = lenovo_yt3_init,
 };
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index 1362f4167e3d..174f02322e52 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -895,7 +895,6 @@ static int xiaomi_mipad2_brightness_set(struct led_classdev *led_cdev,
 static int __init xiaomi_mipad2_init(struct device *dev)
 {
 	struct led_classdev *led_cdev;
-	int ret;
 
 	xiaomi_mipad2_led_pwm = devm_pwm_get(dev, "pwm_soc_lpss_2");
 	if (IS_ERR(xiaomi_mipad2_led_pwm))
@@ -912,16 +911,7 @@ static int __init xiaomi_mipad2_init(struct device *dev)
 	/* Turn LED off during suspend */
 	led_cdev->flags = LED_CORE_SUSPENDRESUME;
 
-	ret = devm_led_classdev_register(dev, led_cdev);
-	if (ret)
-		return dev_err_probe(dev, ret, "registering LED\n");
-
-	return software_node_register_node_group(ktd2026_node_group);
-}
-
-static void xiaomi_mipad2_exit(void)
-{
-	software_node_unregister_node_group(ktd2026_node_group);
+	return devm_led_classdev_register(dev, led_cdev);
 }
 
 /*
@@ -956,6 +946,6 @@ static const struct x86_i2c_client_info xiaomi_mipad2_i2c_clients[] __initconst
 const struct x86_dev_info xiaomi_mipad2_info __initconst = {
 	.i2c_client_info = xiaomi_mipad2_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(xiaomi_mipad2_i2c_clients),
+	.swnode_group = ktd2026_node_group,
 	.init = xiaomi_mipad2_init,
-	.exit = xiaomi_mipad2_exit,
 };
-- 
2.51.0

Re: [PATCH v3 13/19] platform/x86: x86-android-tablets: use swnode_group instead of manual registering

[Dmitry Torokhov]

On Fri, Sep 19, 2025 at 10:47:36PM +0200, Hans de Goede wrote:
> Replace manually calling software_node_register_node_group() from init()
> with the new swnode_group registration mechanism.
> 
> Note this also fixes a missing software_node_unregister_node_group()
> for lenovo_yt3_swnodes.
> 
> Signed-off-by: Hans de Goede <hansg@kernel.org>

Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Thanks.

-- 
Dmitry

[PATCH v3 14/19] platform/x86: x86-android-tablets: Update my email address

[Hans de Goede]

hdegoede@redhat.com will stop working soon, replace it with my kernel.org
address.

Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 drivers/platform/x86/x86-android-tablets/asus.c               | 2 +-
 drivers/platform/x86/x86-android-tablets/core.c               | 4 ++--
 drivers/platform/x86/x86-android-tablets/dmi.c                | 2 +-
 drivers/platform/x86/x86-android-tablets/lenovo.c             | 2 +-
 drivers/platform/x86/x86-android-tablets/other.c              | 2 +-
 drivers/platform/x86/x86-android-tablets/shared-psy-info.c    | 2 +-
 drivers/platform/x86/x86-android-tablets/shared-psy-info.h    | 2 +-
 drivers/platform/x86/x86-android-tablets/vexia_atla10_ec.c    | 2 +-
 .../platform/x86/x86-android-tablets/x86-android-tablets.h    | 2 +-
 9 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/asus.c b/drivers/platform/x86/x86-android-tablets/asus.c
index 39eb2f9dc031..7d29c7654d21 100644
--- a/drivers/platform/x86/x86-android-tablets/asus.c
+++ b/drivers/platform/x86/x86-android-tablets/asus.c
@@ -5,7 +5,7 @@
  * devices typically have a bunch of things hardcoded, rather than specified
  * in their DSDT.
  *
- * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
  */
 
 #include <linux/gpio/machine.h>
diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
index 5675e888d84f..15d216be0bed 100644
--- a/drivers/platform/x86/x86-android-tablets/core.c
+++ b/drivers/platform/x86/x86-android-tablets/core.c
@@ -5,7 +5,7 @@
  * devices typically have a bunch of things hardcoded, rather than specified
  * in their DSDT.
  *
- * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -567,6 +567,6 @@ static void __exit x86_android_tablet_exit(void)
 }
 module_exit(x86_android_tablet_exit);
 
-MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_AUTHOR("Hans de Goede <hansg@kernel.org>");
 MODULE_DESCRIPTION("X86 Android tablets DSDT fixups driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/x86-android-tablets/dmi.c b/drivers/platform/x86/x86-android-tablets/dmi.c
index 278c6d151dc4..ebba7400d5c9 100644
--- a/drivers/platform/x86/x86-android-tablets/dmi.c
+++ b/drivers/platform/x86/x86-android-tablets/dmi.c
@@ -5,7 +5,7 @@
  * devices typically have a bunch of things hardcoded, rather than specified
  * in their DSDT.
  *
- * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
  */
 
 #include <linux/dmi.h>
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 1f325b2947ab..832be02495b5 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -5,7 +5,7 @@
  * devices typically have a bunch of things hardcoded, rather than specified
  * in their DSDT.
  *
- * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index 174f02322e52..bc473979e4f6 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -5,7 +5,7 @@
  * devices typically have a bunch of things hardcoded, rather than specified
  * in their DSDT.
  *
- * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
  */
 
 #include <linux/acpi.h>
diff --git a/drivers/platform/x86/x86-android-tablets/shared-psy-info.c b/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
index 62f41c14e6ba..29fc466f76fe 100644
--- a/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
+++ b/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
@@ -5,7 +5,7 @@
  * devices typically have a bunch of things hardcoded, rather than specified
  * in their DSDT.
  *
- * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
  */
 
 #include <linux/gpio/machine.h>
diff --git a/drivers/platform/x86/x86-android-tablets/shared-psy-info.h b/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
index e5ba1c65d62b..149befba3330 100644
--- a/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
+++ b/drivers/platform/x86/x86-android-tablets/shared-psy-info.h
@@ -5,7 +5,7 @@
  * devices typically have a bunch of things hardcoded, rather than specified
  * in their DSDT.
  *
- * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
  */
 #ifndef __PDX86_SHARED_PSY_INFO_H
 #define __PDX86_SHARED_PSY_INFO_H
diff --git a/drivers/platform/x86/x86-android-tablets/vexia_atla10_ec.c b/drivers/platform/x86/x86-android-tablets/vexia_atla10_ec.c
index 5d02af1c5aaa..2f8cd8d9e0ab 100644
--- a/drivers/platform/x86/x86-android-tablets/vexia_atla10_ec.c
+++ b/drivers/platform/x86/x86-android-tablets/vexia_atla10_ec.c
@@ -256,6 +256,6 @@ static struct i2c_driver atla10_ec_driver = {
 };
 module_i2c_driver(atla10_ec_driver);
 
-MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_AUTHOR("Hans de Goede <hansg@kernel.org>");
 MODULE_DESCRIPTION("Battery driver for Vexia EDU ATLA 10 tablet EC");
 MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
index 4bf4bcdf50c0..8e7d04bcb3f8 100644
--- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
+++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
@@ -5,7 +5,7 @@
  * devices typically have a bunch of things hardcoded, rather than specified
  * in their DSDT.
  *
- * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
  */
 #ifndef __PDX86_X86_ANDROID_TABLETS_H
 #define __PDX86_X86_ANDROID_TABLETS_H
-- 
2.51.0

[PATCH v3 15/19] platform/x86: x86-android-tablets: Move Acer info to its own file

[Hans de Goede]

Acer has several x86 based Android tablets which need x86-android-tablets
support to work around their broken ACPI tables.

At the moment x86-android-tablets only support one model, move this to
its own file before adding support for more models to avoid needing to
move more code around later.

Signed-off-by: Hans de Goede <hansg@kernel.org>
---
Changes in v3:
- Rebase on top of Dmitry's GPIO software node reference series and
  include it as part of this series
---
 .../platform/x86/x86-android-tablets/Makefile |  2 +-
 .../platform/x86/x86-android-tablets/acer.c   | 87 +++++++++++++++++++
 .../platform/x86/x86-android-tablets/other.c  | 70 ---------------
 3 files changed, 88 insertions(+), 71 deletions(-)
 create mode 100644 drivers/platform/x86/x86-android-tablets/acer.c

diff --git a/drivers/platform/x86/x86-android-tablets/Makefile b/drivers/platform/x86/x86-android-tablets/Makefile
index 313be30548bc..a2cf8cbdb351 100644
--- a/drivers/platform/x86/x86-android-tablets/Makefile
+++ b/drivers/platform/x86/x86-android-tablets/Makefile
@@ -6,4 +6,4 @@
 obj-$(CONFIG_X86_ANDROID_TABLETS) += vexia_atla10_ec.o
 obj-$(CONFIG_X86_ANDROID_TABLETS) += x86-android-tablets.o
 x86-android-tablets-y := core.o dmi.o shared-psy-info.o \
-			 asus.o lenovo.o other.o
+			 acer.o asus.o lenovo.o other.o
diff --git a/drivers/platform/x86/x86-android-tablets/acer.c b/drivers/platform/x86/x86-android-tablets/acer.c
new file mode 100644
index 000000000000..e5850da8037a
--- /dev/null
+++ b/drivers/platform/x86/x86-android-tablets/acer.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Board info for Acer X86 tablets which ship with Android as the factory image
+ * and which have broken DSDT tables. The factory kernels shipped on these
+ * devices typically have a bunch of things hardcoded, rather than specified
+ * in their DSDT.
+ *
+ * Copyright (C) 2021-2025 Hans de Goede <hansg@kernel.org>
+ */
+
+#include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+
+#include "shared-psy-info.h"
+#include "x86-android-tablets.h"
+
+/* Acer Iconia One 7 B1-750 has an Android factory image with everything hardcoded */
+static const char * const acer_b1_750_mount_matrix[] = {
+	"-1", "0", "0",
+	"0", "1", "0",
+	"0", "0", "1"
+};
+
+static const struct property_entry acer_b1_750_bma250e_props[] = {
+	PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", acer_b1_750_mount_matrix),
+	{ }
+};
+
+static const struct software_node acer_b1_750_bma250e_node = {
+	.properties = acer_b1_750_bma250e_props,
+};
+
+static const struct property_entry acer_b1_750_novatek_props[] = {
+	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node acer_b1_750_novatek_node = {
+	.properties = acer_b1_750_novatek_props,
+};
+
+static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = {
+	{
+		/* Novatek NVT-ts touchscreen */
+		.board_info = {
+			.type = "nt11205-ts",
+			.addr = 0x34,
+			.dev_name = "NVT-ts",
+			.swnode = &acer_b1_750_novatek_node,
+		},
+		.adapter_path = "\\_SB_.I2C4",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
+			.chip = "INT33FC:02",
+			.index = 3,
+			.trigger = ACPI_EDGE_SENSITIVE,
+			.polarity = ACPI_ACTIVE_LOW,
+			.con_id = "NVT-ts_irq",
+		},
+	}, {
+		/* BMA250E accelerometer */
+		.board_info = {
+			.type = "bma250e",
+			.addr = 0x18,
+			.swnode = &acer_b1_750_bma250e_node,
+		},
+		.adapter_path = "\\_SB_.I2C3",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
+			.chip = "INT33FC:02",
+			.index = 25,
+			.trigger = ACPI_LEVEL_SENSITIVE,
+			.polarity = ACPI_ACTIVE_HIGH,
+			.con_id = "bma250e_irq",
+		},
+	},
+};
+
+const struct x86_dev_info acer_b1_750_info __initconst = {
+	.i2c_client_info = acer_b1_750_i2c_clients,
+	.i2c_client_count = ARRAY_SIZE(acer_b1_750_i2c_clients),
+	.pdev_info = int3496_pdevs,
+	.pdev_count = 1,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
+};
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index bc473979e4f6..ea7a01d7ccb4 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -22,76 +22,6 @@
 #include "shared-psy-info.h"
 #include "x86-android-tablets.h"
 
-/* Acer Iconia One 7 B1-750 has an Android factory image with everything hardcoded */
-static const char * const acer_b1_750_mount_matrix[] = {
-	"-1", "0", "0",
-	"0", "1", "0",
-	"0", "0", "1"
-};
-
-static const struct property_entry acer_b1_750_bma250e_props[] = {
-	PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", acer_b1_750_mount_matrix),
-	{ }
-};
-
-static const struct software_node acer_b1_750_bma250e_node = {
-	.properties = acer_b1_750_bma250e_props,
-};
-
-static const struct property_entry acer_b1_750_novatek_props[] = {
-	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_LOW),
-	{ }
-};
-
-static const struct software_node acer_b1_750_novatek_node = {
-	.properties = acer_b1_750_novatek_props,
-};
-
-static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = {
-	{
-		/* Novatek NVT-ts touchscreen */
-		.board_info = {
-			.type = "nt11205-ts",
-			.addr = 0x34,
-			.dev_name = "NVT-ts",
-			.swnode = &acer_b1_750_novatek_node,
-		},
-		.adapter_path = "\\_SB_.I2C4",
-		.irq_data = {
-			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
-			.chip = "INT33FC:02",
-			.index = 3,
-			.trigger = ACPI_EDGE_SENSITIVE,
-			.polarity = ACPI_ACTIVE_LOW,
-			.con_id = "NVT-ts_irq",
-		},
-	}, {
-		/* BMA250E accelerometer */
-		.board_info = {
-			.type = "bma250e",
-			.addr = 0x18,
-			.swnode = &acer_b1_750_bma250e_node,
-		},
-		.adapter_path = "\\_SB_.I2C3",
-		.irq_data = {
-			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
-			.chip = "INT33FC:02",
-			.index = 25,
-			.trigger = ACPI_LEVEL_SENSITIVE,
-			.polarity = ACPI_ACTIVE_HIGH,
-			.con_id = "bma250e_irq",
-		},
-	},
-};
-
-const struct x86_dev_info acer_b1_750_info __initconst = {
-	.i2c_client_info = acer_b1_750_i2c_clients,
-	.i2c_client_count = ARRAY_SIZE(acer_b1_750_i2c_clients),
-	.pdev_info = int3496_pdevs,
-	.pdev_count = 1,
-	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
-};
-
 /*
  * Advantech MICA-071
  * This is a standard Windows tablet, but it has an extra "quick launch" button
-- 
2.51.0

Re: [PATCH v3 15/19] platform/x86: x86-android-tablets: Move Acer info to its own file

[Dmitry Torokhov]

On Fri, Sep 19, 2025 at 10:47:38PM +0200, Hans de Goede wrote:
> Acer has several x86 based Android tablets which need x86-android-tablets
> support to work around their broken ACPI tables.
> 
> At the moment x86-android-tablets only support one model, move this to
> its own file before adding support for more models to avoid needing to
> move more code around later.
> 
> Signed-off-by: Hans de Goede <hansg@kernel.org>

Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Thanks.

-- 
Dmitry

[PATCH v3 16/19] platform/x86: x86-android-tablets: Add support for Acer A1-840 tablet

[Hans de Goede]

Add support for the Acer Iconia One 8 A1-840 (non FHD version) tablet.

This tablet has the usual issues for tablets shipped with Android as
factory OS. The DSDT is broken in various ways, so i2c_clients for
various devices as well as the INT3496 platform-device for OTG extcon
handling need to be instantiated manually by x86-android-tablets.

This tablet is special in that it is the first time a Bay Trail device
has been found to use the Dollar Cove TI PMIC and the first time that
the PMIC's Coulomb Counter is used as fuel-gauge.

So far this PMIC has only been used together with Cherry Trail SoCs
and always in combination with a separate full-featured fuel-gauge IC.

Signed-off-by: Hans de Goede <hansg@kernel.org>
---
Changes in v3:
- Rebase on top of Dmitry's GPIO software node reference series and
  use GPIO swnode references instead of GPIO lookup tables
- Use the new swnode_group register mechanism to simplify init() and exit()
---
 .../platform/x86/x86-android-tablets/acer.c   | 160 ++++++++++++++++++
 .../platform/x86/x86-android-tablets/dmi.c    |  10 ++
 .../x86-android-tablets/x86-android-tablets.h |   1 +
 3 files changed, 171 insertions(+)

diff --git a/drivers/platform/x86/x86-android-tablets/acer.c b/drivers/platform/x86/x86-android-tablets/acer.c
index e5850da8037a..d48c70ffd992 100644
--- a/drivers/platform/x86/x86-android-tablets/acer.c
+++ b/drivers/platform/x86/x86-android-tablets/acer.c
@@ -16,6 +16,166 @@
 #include "shared-psy-info.h"
 #include "x86-android-tablets.h"
 
+/* Acer Iconia One 8 A1-840 (non FHD version) */
+static const struct property_entry acer_a1_840_bq24190_props[] = {
+	PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_4v2_battery_node),
+	PROPERTY_ENTRY_BOOL("omit-battery-class"),
+	PROPERTY_ENTRY_BOOL("disable-reset"),
+	{ }
+};
+
+static const struct software_node acer_a1_840_bq24190_node = {
+	.properties = acer_a1_840_bq24190_props,
+};
+
+static const struct property_entry acer_a1_840_touchscreen_props[] = {
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 800),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
+	PROPERTY_ENTRY_GPIO("reset-gpios", &baytrail_gpiochip_nodes[1], 26, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node acer_a1_840_touchscreen_node = {
+	.properties = acer_a1_840_touchscreen_props,
+};
+
+static const struct x86_i2c_client_info acer_a1_840_i2c_clients[] __initconst = {
+	{
+		/* BQ24297 charger IC */
+		.board_info = {
+			.type = "bq24297",
+			.addr = 0x6b,
+			.dev_name = "bq24297",
+			.swnode = &acer_a1_840_bq24190_node,
+			.platform_data = &bq24190_pdata,
+		},
+		.adapter_path = "\\_SB_.I2C1",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
+			.chip = "INT33FC:02",
+			.index = 2,
+			.trigger = ACPI_EDGE_SENSITIVE,
+			.polarity = ACPI_ACTIVE_LOW,
+			.con_id = "bq24297_irq",
+		},
+	}, {
+		/* MPU6515 sensors */
+		.board_info = {
+			.type = "mpu6515",
+			.addr = 0x69,
+			.dev_name = "mpu6515",
+		},
+		.adapter_path = "\\_SB_.I2C3",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_APIC,
+			.index = 0x47,
+			.trigger = ACPI_EDGE_SENSITIVE,
+			.polarity = ACPI_ACTIVE_HIGH,
+		},
+	}, {
+		/* FT5416 touchscreen controller */
+		.board_info = {
+			.type = "edt-ft5x06",
+			.addr = 0x38,
+			.dev_name = "ft5416",
+			.swnode = &acer_a1_840_touchscreen_node,
+		},
+		.adapter_path = "\\_SB_.I2C4",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_APIC,
+			.index = 0x45,
+			.trigger = ACPI_EDGE_SENSITIVE,
+			.polarity = ACPI_ACTIVE_HIGH,
+		},
+	}
+};
+
+static const struct property_entry acer_a1_840_int3496_props[] __initconst = {
+	PROPERTY_ENTRY_GPIO("mux-gpios", &baytrail_gpiochip_nodes[2], 1, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("id-gpios", &baytrail_gpiochip_nodes[2], 18, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+static const struct platform_device_info acer_a1_840_pdevs[] __initconst = {
+	{
+		/* For micro USB ID pin handling */
+		.name = "intel-int3496",
+		.id = PLATFORM_DEVID_NONE,
+		.properties = acer_a1_840_int3496_props,
+	},
+};
+
+/* Properties for the Dollar Cove TI PMIC battery MFD child used as fuel-gauge */
+static const struct property_entry acer_a1_840_fg_props[] = {
+	PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_4v2_battery_node),
+	PROPERTY_ENTRY_STRING_ARRAY_LEN("supplied-from", bq24190_psy, 1),
+	PROPERTY_ENTRY_GPIO("charged-gpios", &baytrail_gpiochip_nodes[2], 10, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+static struct device *acer_a1_840_fg_dev;
+static struct fwnode_handle *acer_a1_840_fg_node;
+
+static int __init acer_a1_840_init(struct device *dev)
+{
+	int ret;
+
+	acer_a1_840_fg_dev = bus_find_device_by_name(&platform_bus_type, NULL, "chtdc_ti_battery");
+	if (!acer_a1_840_fg_dev)
+		return dev_err_probe(dev, -EPROBE_DEFER, "getting chtdc_ti_battery dev\n");
+
+	acer_a1_840_fg_node = fwnode_create_software_node(acer_a1_840_fg_props, NULL);
+	if (IS_ERR(acer_a1_840_fg_node)) {
+		ret = PTR_ERR(acer_a1_840_fg_node);
+		goto err_put;
+	}
+
+	ret = device_add_software_node(acer_a1_840_fg_dev,
+				       to_software_node(acer_a1_840_fg_node));
+	if (ret)
+		goto err_put;
+
+	return 0;
+
+err_put:
+	fwnode_handle_put(acer_a1_840_fg_node);
+	acer_a1_840_fg_node = NULL;
+	put_device(acer_a1_840_fg_dev);
+	acer_a1_840_fg_dev = NULL;
+	return ret;
+}
+
+static void acer_a1_840_exit(void)
+{
+	device_remove_software_node(acer_a1_840_fg_dev);
+	/*
+	 * Skip fwnode_handle_put(acer_a1_840_fg_node), instead leak the node.
+	 * The intel_dc_ti_battery driver may still reference the strdup-ed
+	 * "supplied-from" string. This string will be free-ed if the node
+	 * is released.
+	 */
+	acer_a1_840_fg_node = NULL;
+	put_device(acer_a1_840_fg_dev);
+	acer_a1_840_fg_dev = NULL;
+}
+
+static const char * const acer_a1_840_modules[] __initconst = {
+	"bq24190_charger",	/* For the Vbus regulator for intel-int3496 */
+	NULL
+};
+
+const struct x86_dev_info acer_a1_840_info __initconst = {
+	.i2c_client_info = acer_a1_840_i2c_clients,
+	.i2c_client_count = ARRAY_SIZE(acer_a1_840_i2c_clients),
+	.pdev_info = acer_a1_840_pdevs,
+	.pdev_count = ARRAY_SIZE(acer_a1_840_pdevs),
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
+	.swnode_group = generic_lipo_4v2_battery_swnodes,
+	.modules = acer_a1_840_modules,
+	.init = acer_a1_840_init,
+	.exit = acer_a1_840_exit,
+};
+
 /* Acer Iconia One 7 B1-750 has an Android factory image with everything hardcoded */
 static const char * const acer_b1_750_mount_matrix[] = {
 	"-1", "0", "0",
diff --git a/drivers/platform/x86/x86-android-tablets/dmi.c b/drivers/platform/x86/x86-android-tablets/dmi.c
index ebba7400d5c9..4a5720d6fc1d 100644
--- a/drivers/platform/x86/x86-android-tablets/dmi.c
+++ b/drivers/platform/x86/x86-android-tablets/dmi.c
@@ -16,6 +16,16 @@
 #include "x86-android-tablets.h"
 
 const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
+	{
+		/* Acer Iconia One 8 A1-840 (non FHD version) */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
+			/* Above strings are too generic also match BIOS date */
+			DMI_MATCH(DMI_BIOS_DATE, "04/01/2014"),
+		},
+		.driver_data = (void *)&acer_a1_840_info,
+	},
 	{
 		/* Acer Iconia One 7 B1-750 */
 		.matches = {
diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
index 8e7d04bcb3f8..2498390958ad 100644
--- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
+++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
@@ -111,6 +111,7 @@ extern const struct software_node cherryview_gpiochip_nodes[];
  * Extern declarations of x86_dev_info structs so there can be a single
  * MODULE_DEVICE_TABLE(dmi, ...), while splitting the board descriptions.
  */
+extern const struct x86_dev_info acer_a1_840_info;
 extern const struct x86_dev_info acer_b1_750_info;
 extern const struct x86_dev_info advantech_mica_071_info;
 extern const struct x86_dev_info asus_me176c_info;
-- 
2.51.0

[PATCH v3 17/19] platform/x86: x86-android-tablets: Simplify lenovo_yoga_tab2_830_1050_exit()

[Hans de Goede]

lenovo_yoga_tab2_830_1050_exit() only gets called after a successful
lenovo_yoga_tab2_830_1050_init() call so there is no need to check
if lenovo_yoga_tab2_830_1050_codec_[dev|pinctrl] are set.

Also change the exit() order to be the exact reverse of init().

Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 drivers/platform/x86/x86-android-tablets/lenovo.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 832be02495b5..08cabaa5e0c0 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -594,15 +594,10 @@ static void lenovo_yoga_tab2_830_1050_exit(void)
 {
 	unregister_sys_off_handler(lenovo_yoga_tab2_830_1050_sys_off_handler);
 
-	if (lenovo_yoga_tab2_830_1050_codec_dev) {
-		device_remove_software_node(lenovo_yoga_tab2_830_1050_codec_dev);
-		put_device(lenovo_yoga_tab2_830_1050_codec_dev);
-	}
-
-	if (lenovo_yoga_tab2_830_1050_codec_pinctrl) {
-		pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
-		pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
-	}
+	device_remove_software_node(lenovo_yoga_tab2_830_1050_codec_dev);
+	pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
+	pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
+	put_device(lenovo_yoga_tab2_830_1050_codec_dev);
 }
 
 /*
-- 
2.51.0

Re: [PATCH v3 17/19] platform/x86: x86-android-tablets: Simplify lenovo_yoga_tab2_830_1050_exit()

[Dmitry Torokhov]

On Fri, Sep 19, 2025 at 10:47:40PM +0200, Hans de Goede wrote:
> lenovo_yoga_tab2_830_1050_exit() only gets called after a successful
> lenovo_yoga_tab2_830_1050_init() call so there is no need to check
> if lenovo_yoga_tab2_830_1050_codec_[dev|pinctrl] are set.
> 
> Also change the exit() order to be the exact reverse of init().
> 
> Signed-off-by: Hans de Goede <hansg@kernel.org>

Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Thanks.

-- 
Dmitry

[PATCH v3 18/19] platform/x86: x86-android-tablets: Fix modules lists for Lenovo devices

[Hans de Goede]

2 fixes for Lenovo tablets:

- The bq24190 charger on the Lenovo Yoga Tab2 830/1050 devices does not use
  the crystal-cove PMIC charger IRQ, so these shouldn't use bq24190_modules
  as that includes "intel_crystal_cove_charger"

- Both the Tab2 and the Tab3 devices have a SPI audio-codec which init()
  attaches properties to, resp. the whole SPI device gets instantiated by
  the x86-android-tablets code. This requires the "spi_pxa2xx_platform"
  module to be loaded before init() runs

Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 .../platform/x86/x86-android-tablets/lenovo.c | 21 ++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 08cabaa5e0c0..e3d3a8290949 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -443,6 +443,12 @@ static const struct software_node *lenovo_yoga_tab2_830_1050_swnodes[] = {
 static int __init lenovo_yoga_tab2_830_1050_init(struct device *dev);
 static void lenovo_yoga_tab2_830_1050_exit(void);
 
+static const char * const lenovo_yoga_tab2_modules[] __initconst = {
+	"spi_pxa2xx_platform",	/* For the SPI codec device */
+	"bq24190_charger",	/* For the Vbus regulator for int3496/lc824206xa */
+	NULL
+};
+
 const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
 	.i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients),
@@ -450,7 +456,7 @@ const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_pdevs),
 	.gpio_button_swnodes = lenovo_yoga_tab2_830_1050_lid_swnodes,
 	.swnode_group = lenovo_yoga_tab2_830_1050_swnodes,
-	.modules = bq24190_modules,
+	.modules = lenovo_yoga_tab2_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_830_1050_init,
 	.exit = lenovo_yoga_tab2_830_1050_exit,
@@ -767,11 +773,6 @@ static const struct platform_device_info lenovo_yoga_tab2_1380_pdevs[] __initcon
 	},
 };
 
-static const char * const lenovo_yoga_tab2_1380_modules[] __initconst = {
-	"bq24190_charger",            /* For the Vbus regulator for lc824206xa */
-	NULL
-};
-
 static int __init lenovo_yoga_tab2_1380_init(struct device *dev)
 {
 	int ret;
@@ -800,7 +801,7 @@ const struct x86_dev_info lenovo_yoga_tab2_1380_info __initconst = {
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_pdevs),
 	.gpio_button_swnodes = lenovo_yoga_tab2_830_1050_lid_swnodes,
 	.swnode_group = lenovo_yoga_tab2_830_1050_swnodes,
-	.modules = lenovo_yoga_tab2_1380_modules,
+	.modules = lenovo_yoga_tab2_modules,
 	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_1380_init,
 	.exit = lenovo_yoga_tab2_830_1050_exit,
@@ -1061,12 +1062,18 @@ static int __init lenovo_yt3_init(struct device *dev)
 	return 0;
 }
 
+static const char * const lenovo_yt3_modules[] __initconst = {
+	"spi_pxa2xx_platform",	/* For the SPI codec device */
+	NULL
+};
+
 const struct x86_dev_info lenovo_yt3_info __initconst = {
 	.i2c_client_info = lenovo_yt3_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(lenovo_yt3_i2c_clients),
 	.spi_dev_info = lenovo_yt3_spi_devs,
 	.spi_dev_count = ARRAY_SIZE(lenovo_yt3_spi_devs),
 	.swnode_group = lenovo_yt3_swnodes,
+	.modules = lenovo_yt3_modules,
 	.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
 	.init = lenovo_yt3_init,
 };
-- 
2.51.0

[PATCH v3 19/19] platform/x86: x86-android-tablets: Stop using EPROBE_DEFER

[Hans de Goede]

Since the x86-android-tablets code uses platform_create_bundle() it cannot
use EPROBE_DEFER and the driver-core will translate EPROBE_DEFER to ENXIO.

Stop using EPROBE_DEFER instead log an error and return ENODEV, or for non
fatal cases log a warning and return 0.

Signed-off-by: Hans de Goede <hansg@kernel.org>
---
 drivers/platform/x86/x86-android-tablets/core.c  | 6 ++++--
 drivers/platform/x86/x86-android-tablets/other.c | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
index 15d216be0bed..2fa66df8b605 100644
--- a/drivers/platform/x86/x86-android-tablets/core.c
+++ b/drivers/platform/x86/x86-android-tablets/core.c
@@ -276,8 +276,10 @@ get_serdev_controller_by_pci_parent(const struct x86_serdev_info *info)
 	struct pci_dev *pdev;
 
 	pdev = pci_get_domain_bus_and_slot(0, 0, info->ctrl.pci.devfn);
-	if (!pdev)
-		return ERR_PTR(-EPROBE_DEFER);
+	if (!pdev) {
+		pr_err("error could not get PCI serdev at devfn 0x%02x\n", info->ctrl.pci.devfn);
+		return ERR_PTR(-ENODEV);
+	}
 
 	/* This puts our reference on pdev and returns a ref on the ctrl */
 	return get_serdev_controller_from_parent(&pdev->dev, 0, info->ctrl_devname);
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index ea7a01d7ccb4..7532af2d72d1 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -711,8 +711,10 @@ static int __init vexia_edu_atla10_9v_init(struct device *dev)
 
 	/* Reprobe the SDIO controller to enumerate the now enabled Wifi module */
 	pdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0x11, 0));
-	if (!pdev)
-		return -EPROBE_DEFER;
+	if (!pdev) {
+		pr_warn("Could not get PCI SDIO at devfn 0x%02x\n", PCI_DEVFN(0x11, 0));
+		return 0;
+	}
 
 	ret = device_reprobe(&pdev->dev);
 	if (ret)
-- 
2.51.0

Re: [PATCH v3 19/19] platform/x86: x86-android-tablets: Stop using EPROBE_DEFER

[Dmitry Torokhov]

On Fri, Sep 19, 2025 at 10:47:42PM +0200, Hans de Goede wrote:
> Since the x86-android-tablets code uses platform_create_bundle() it cannot
> use EPROBE_DEFER and the driver-core will translate EPROBE_DEFER to ENXIO.
> 
> Stop using EPROBE_DEFER instead log an error and return ENODEV, or for non
> fatal cases log a warning and return 0.
> 
> Signed-off-by: Hans de Goede <hansg@kernel.org>

Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Thanks.

-- 
Dmitry

Re: [PATCH v3 19/19] platform/x86: x86-android-tablets: Stop using EPROBE_DEFER

[Andy Shevchenko]

On Fri, Sep 19, 2025 at 11:48 PM Hans de Goede <hansg@kernel.org> wrote:
>
> Since the x86-android-tablets code uses platform_create_bundle() it cannot
> use EPROBE_DEFER and the driver-core will translate EPROBE_DEFER to ENXIO.
>
> Stop using EPROBE_DEFER instead log an error and return ENODEV, or for non
> fatal cases log a warning and return 0.


...


>         struct pci_dev *pdev;
>
>         pdev = pci_get_domain_bus_and_slot(0, 0, info->ctrl.pci.devfn);
> -       if (!pdev)
> -               return ERR_PTR(-EPROBE_DEFER);
> +       if (!pdev) {
> +               pr_err("error could not get PCI serdev at devfn 0x%02x\n", info->ctrl.pci.devfn);

TBH, I think this is unlikely to happen. If we have a PCI device, I
hardly can imagine that we can't get it, yet it may be not enumerated,
but the pdev seems to me won't ever be NULL. Am I mistaken?

> +               return ERR_PTR(-ENODEV);
> +       }
>
>         /* This puts our reference on pdev and returns a ref on the ctrl */
>         return get_serdev_controller_from_parent(&pdev->dev, 0, info->ctrl_devname);

...

>         /* Reprobe the SDIO controller to enumerate the now enabled Wifi module */
>         pdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0x11, 0));
> -       if (!pdev)
> -               return -EPROBE_DEFER;
> +       if (!pdev) {
> +               pr_warn("Could not get PCI SDIO at devfn 0x%02x\n", PCI_DEVFN(0x11, 0));
> +               return 0;
> +       }

Ditto here.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v3 19/19] platform/x86: x86-android-tablets: Stop using EPROBE_DEFER

[Hans de Goede]

Hi Andy,

On 20-Sep-25 1:21 PM, Andy Shevchenko wrote:
> On Fri, Sep 19, 2025 at 11:48 PM Hans de Goede <hansg@kernel.org> wrote:
>>
>> Since the x86-android-tablets code uses platform_create_bundle() it cannot
>> use EPROBE_DEFER and the driver-core will translate EPROBE_DEFER to ENXIO.
>>
>> Stop using EPROBE_DEFER instead log an error and return ENODEV, or for non
>> fatal cases log a warning and return 0.
> 
> 
> ...
> 
> 
>>         struct pci_dev *pdev;
>>
>>         pdev = pci_get_domain_bus_and_slot(0, 0, info->ctrl.pci.devfn);
>> -       if (!pdev)
>> -               return ERR_PTR(-EPROBE_DEFER);
>> +       if (!pdev) {
>> +               pr_err("error could not get PCI serdev at devfn 0x%02x\n", info->ctrl.pci.devfn);
> 
> TBH, I think this is unlikely to happen. If we have a PCI device, I
> hardly can imagine that we can't get it, yet it may be not enumerated,
> but the pdev seems to me won't ever be NULL. Am I mistaken?

I agree that this should never happen, but IMHO we should still check for it,
we cannot just assume that the device will be there.

This is like many other error checks in the kernel where without fault injection
the error will more or less never happen. Still we always add error checks to
be robust.

Regards,

Hans



> 
>> +               return ERR_PTR(-ENODEV);
>> +       }
>>
>>         /* This puts our reference on pdev and returns a ref on the ctrl */
>>         return get_serdev_controller_from_parent(&pdev->dev, 0, info->ctrl_devname);
> 
> ...
> 
>>         /* Reprobe the SDIO controller to enumerate the now enabled Wifi module */
>>         pdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0x11, 0));
>> -       if (!pdev)
>> -               return -EPROBE_DEFER;
>> +       if (!pdev) {
>> +               pr_warn("Could not get PCI SDIO at devfn 0x%02x\n", PCI_DEVFN(0x11, 0));
>> +               return 0;
>> +       }
> 
> Ditto here.
> 

Re: [PATCH v3 00/19] x86-android-tablets: convert to use GPIO references + Acer A1-840 support

[Andy Shevchenko]

On Fri, Sep 19, 2025 at 11:47 PM Hans de Goede <hansg@kernel.org> wrote:
>
> Dmitry's v2 cover-letter:
>
> "This series came about because now software nodes can be used to
> describe GPIOs (via PROPERTY_ENTRY_GPIO() macros) and I would like to
> eventually get rid of gpio_keys_platform_data structure.
>
> So while I was doing the conversions from GPIO_LOOKUP() tables for
> gpio_keys devices I decided to convert the rest of them as well. Maybe
> some time in the future we can drop support for GPIO_LOOKUP() and rely
> on device properties exclusively."
>
> Changes in v3:
> - Add missing pinctrl_put() in lenovo_yoga_tab2_830_1050_init_codec()
>   error-exit paths after the pinctrl_get_select() succeeds
>
> - Adding a swnode to the yt3 spi device changes the name of the SPI/codec
>   device and the sound/soc/intel/boards/bytcr_wm5102.c machine driver looks
>   up the code by name, update the machine driver to use the new name.
>
> - Make yoga-tab2-pro-1380-fastcharger.c propagate the fwnode set on
>   the platform-device to the serdev it creates to fix this.
>
> - Fix the commit message of "platform/x86: x86-android-tablets: convert
>   gpio_keys devices to GPIO references" which contained a stray reference
>   to wm5102.
>
> New patches in v3:
>
> - Change sw_bat register mechanism into a generic swnode_group mechanism
>
> - Use swnode_group mechanism to register groups needed, instead of having
>   init() callbacks manually do this
>
> - Changed my email address in the driver to hansg@kernel.org
>
> - Rebased "platform/x86: x86-android-tablets: Add support for Acer A1-840
>   tablet" on top, switched that to also use software-nodes for GPIOs and
>   added it to this series
>
> - Some Lenovo Yoga Tab 2 support fixes

I'm in favour of this series,
Reviewed-by: Andy Shevchenko <andy@kernel.org>
with some nit-picks here and there.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v3 00/19] x86-android-tablets: convert to use GPIO references + Acer A1-840 support

[Hans de Goede]

Hi Andy,

On 20-Sep-25 1:22 PM, Andy Shevchenko wrote:
> On Fri, Sep 19, 2025 at 11:47 PM Hans de Goede <hansg@kernel.org> wrote:
>>
>> Dmitry's v2 cover-letter:
>>
>> "This series came about because now software nodes can be used to
>> describe GPIOs (via PROPERTY_ENTRY_GPIO() macros) and I would like to
>> eventually get rid of gpio_keys_platform_data structure.
>>
>> So while I was doing the conversions from GPIO_LOOKUP() tables for
>> gpio_keys devices I decided to convert the rest of them as well. Maybe
>> some time in the future we can drop support for GPIO_LOOKUP() and rely
>> on device properties exclusively."
>>
>> Changes in v3:
>> - Add missing pinctrl_put() in lenovo_yoga_tab2_830_1050_init_codec()
>>   error-exit paths after the pinctrl_get_select() succeeds
>>
>> - Adding a swnode to the yt3 spi device changes the name of the SPI/codec
>>   device and the sound/soc/intel/boards/bytcr_wm5102.c machine driver looks
>>   up the code by name, update the machine driver to use the new name.
>>
>> - Make yoga-tab2-pro-1380-fastcharger.c propagate the fwnode set on
>>   the platform-device to the serdev it creates to fix this.
>>
>> - Fix the commit message of "platform/x86: x86-android-tablets: convert
>>   gpio_keys devices to GPIO references" which contained a stray reference
>>   to wm5102.
>>
>> New patches in v3:
>>
>> - Change sw_bat register mechanism into a generic swnode_group mechanism
>>
>> - Use swnode_group mechanism to register groups needed, instead of having
>>   init() callbacks manually do this
>>
>> - Changed my email address in the driver to hansg@kernel.org
>>
>> - Rebased "platform/x86: x86-android-tablets: Add support for Acer A1-840
>>   tablet" on top, switched that to also use software-nodes for GPIOs and
>>   added it to this series
>>
>> - Some Lenovo Yoga Tab 2 support fixes
> 
> I'm in favour of this series,
> Reviewed-by: Andy Shevchenko <andy@kernel.org>
> with some nit-picks here and there.

Thank you. I'll post a v4 to address your remarks soon.

Regards,

Hans