Patch "pinctrl: bcm2835: Add support for all GPIOs on BCM2711" has been added to the 5.4-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    pinctrl: bcm2835: Add support for all GPIOs on BCM2711

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     pinctrl-bcm2835-add-support-for-all-gpios-on-bcm2711.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From foo@baz Thu Jan 27 04:40:37 PM CET 2022
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 25 Jan 2022 11:42:18 -0800
Subject: pinctrl: bcm2835: Add support for all GPIOs on BCM2711
To: stable@vger.kernel.org
Cc: Stefan Wahren <stefan.wahren@i2se.com>, Nicolas Saenz Julienne <nsaenzjulienne@suse.de>, Linus Walleij <linus.walleij@linaro.org>, Florian Fainelli <f.fainelli@gmail.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Ray Jui <rjui@broadcom.com>, Scott Branden <sbranden@broadcom.com>, bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE...), Eric Anholt <eric@anholt.net>, Stefan Wahren <wahrenst@gmx.net>, Nicolas Saenz Julienne <nsaenz@kernel.org>, Phil Elwell <phil@raspberrypi.com>, devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), linux-gpio@vger.kernel.org (open list:PIN CONTROL SUBSYSTEM), linux-rpi-kernel@lists.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE), linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE)
Message-ID: <20220125194222.12783-4-f.fainelli@gmail.com>

From: Stefan Wahren <stefan.wahren@i2se.com>

commit b1d84a3d0a26c5844a22bc09a42704b9371208bb upstream

The BCM2711 supports 58 GPIOs. So extend pinctrl and GPIOs accordingly.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1581166975-22949-4-git-send-email-stefan.wahren@i2se.com
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/bcm/pinctrl-bcm2835.c |   54 ++++++++++++++++++++++++++--------
 1 file changed, 42 insertions(+), 12 deletions(-)

--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -37,6 +37,7 @@
 
 #define MODULE_NAME "pinctrl-bcm2835"
 #define BCM2835_NUM_GPIOS 54
+#define BCM2711_NUM_GPIOS 58
 #define BCM2835_NUM_BANKS 2
 #define BCM2835_NUM_IRQS  3
 
@@ -78,7 +79,7 @@ struct bcm2835_pinctrl {
 
 	/* note: locking assumes each bank will have its own unsigned long */
 	unsigned long enabled_irq_map[BCM2835_NUM_BANKS];
-	unsigned int irq_type[BCM2835_NUM_GPIOS];
+	unsigned int irq_type[BCM2711_NUM_GPIOS];
 
 	struct pinctrl_dev *pctl_dev;
 	struct gpio_chip gpio_chip;
@@ -145,6 +146,10 @@ static struct pinctrl_pin_desc bcm2835_g
 	BCM2835_GPIO_PIN(51),
 	BCM2835_GPIO_PIN(52),
 	BCM2835_GPIO_PIN(53),
+	BCM2835_GPIO_PIN(54),
+	BCM2835_GPIO_PIN(55),
+	BCM2835_GPIO_PIN(56),
+	BCM2835_GPIO_PIN(57),
 };
 
 /* one pin per group */
@@ -203,6 +208,10 @@ static const char * const bcm2835_gpio_g
 	"gpio51",
 	"gpio52",
 	"gpio53",
+	"gpio54",
+	"gpio55",
+	"gpio56",
+	"gpio57",
 };
 
 enum bcm2835_fsel {
@@ -353,6 +362,22 @@ static const struct gpio_chip bcm2835_gp
 	.can_sleep = false,
 };
 
+static const struct gpio_chip bcm2711_gpio_chip = {
+	.label = "pinctrl-bcm2711",
+	.owner = THIS_MODULE,
+	.request = gpiochip_generic_request,
+	.free = gpiochip_generic_free,
+	.direction_input = bcm2835_gpio_direction_input,
+	.direction_output = bcm2835_gpio_direction_output,
+	.get_direction = bcm2835_gpio_get_direction,
+	.get = bcm2835_gpio_get,
+	.set = bcm2835_gpio_set,
+	.set_config = gpiochip_generic_config,
+	.base = -1,
+	.ngpio = BCM2711_NUM_GPIOS,
+	.can_sleep = false,
+};
+
 static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc,
 					 unsigned int bank, u32 mask)
 {
@@ -399,7 +424,7 @@ static void bcm2835_gpio_irq_handler(str
 		bcm2835_gpio_irq_handle_bank(pc, 0, 0xf0000000);
 		bcm2835_gpio_irq_handle_bank(pc, 1, 0x00003fff);
 		break;
-	case 2: /* IRQ2 covers GPIOs 46-53 */
+	case 2: /* IRQ2 covers GPIOs 46-57 */
 		bcm2835_gpio_irq_handle_bank(pc, 1, 0x003fc000);
 		break;
 	}
@@ -618,7 +643,7 @@ static struct irq_chip bcm2835_gpio_irq_
 
 static int bcm2835_pctl_get_groups_count(struct pinctrl_dev *pctldev)
 {
-	return ARRAY_SIZE(bcm2835_gpio_groups);
+	return BCM2835_NUM_GPIOS;
 }
 
 static const char *bcm2835_pctl_get_group_name(struct pinctrl_dev *pctldev,
@@ -776,7 +801,7 @@ static int bcm2835_pctl_dt_node_to_map(s
 		err = of_property_read_u32_index(np, "brcm,pins", i, &pin);
 		if (err)
 			goto out;
-		if (pin >= ARRAY_SIZE(bcm2835_gpio_pins)) {
+		if (pin >= pc->pctl_desc.npins) {
 			dev_err(pc->dev, "%pOF: invalid brcm,pins value %d\n",
 				np, pin);
 			err = -EINVAL;
@@ -852,7 +877,7 @@ static int bcm2835_pmx_get_function_grou
 {
 	/* every pin can do every function */
 	*groups = bcm2835_gpio_groups;
-	*num_groups = ARRAY_SIZE(bcm2835_gpio_groups);
+	*num_groups = BCM2835_NUM_GPIOS;
 
 	return 0;
 }
@@ -1055,7 +1080,7 @@ static const struct pinconf_ops bcm2711_
 static const struct pinctrl_desc bcm2835_pinctrl_desc = {
 	.name = MODULE_NAME,
 	.pins = bcm2835_gpio_pins,
-	.npins = ARRAY_SIZE(bcm2835_gpio_pins),
+	.npins = BCM2835_NUM_GPIOS,
 	.pctlops = &bcm2835_pctl_ops,
 	.pmxops = &bcm2835_pmx_ops,
 	.confops = &bcm2835_pinconf_ops,
@@ -1063,9 +1088,9 @@ static const struct pinctrl_desc bcm2835
 };
 
 static const struct pinctrl_desc bcm2711_pinctrl_desc = {
-	.name = MODULE_NAME,
+	.name = "pinctrl-bcm2711",
 	.pins = bcm2835_gpio_pins,
-	.npins = ARRAY_SIZE(bcm2835_gpio_pins),
+	.npins = BCM2711_NUM_GPIOS,
 	.pctlops = &bcm2835_pctl_ops,
 	.pmxops = &bcm2835_pmx_ops,
 	.confops = &bcm2711_pinconf_ops,
@@ -1077,6 +1102,11 @@ static const struct pinctrl_gpio_range b
 	.npins = BCM2835_NUM_GPIOS,
 };
 
+static const struct pinctrl_gpio_range bcm2711_pinctrl_gpio_range = {
+	.name = "pinctrl-bcm2711",
+	.npins = BCM2711_NUM_GPIOS,
+};
+
 struct bcm_plat_data {
 	const struct gpio_chip *gpio_chip;
 	const struct pinctrl_desc *pctl_desc;
@@ -1090,9 +1120,9 @@ static const struct bcm_plat_data bcm283
 };
 
 static const struct bcm_plat_data bcm2711_plat_data = {
-	.gpio_chip = &bcm2835_gpio_chip,
+	.gpio_chip = &bcm2711_gpio_chip,
 	.pctl_desc = &bcm2711_pinctrl_desc,
-	.gpio_range = &bcm2835_pinctrl_gpio_range,
+	.gpio_range = &bcm2711_pinctrl_gpio_range,
 };
 
 static const struct of_device_id bcm2835_pinctrl_match[] = {
@@ -1118,8 +1148,8 @@ static int bcm2835_pinctrl_probe(struct
 	int err, i;
 	const struct of_device_id *match;
 
-	BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_pins) != BCM2835_NUM_GPIOS);
-	BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_groups) != BCM2835_NUM_GPIOS);
+	BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_pins) != BCM2711_NUM_GPIOS);
+	BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_groups) != BCM2711_NUM_GPIOS);
 
 	pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL);
 	if (!pc)


Patches currently in stable-queue which might be from f.fainelli@gmail.com are

queue-5.4/pinctrl-bcm2835-drop-unused-define.patch
queue-5.4/arm-dts-gpio-ranges-property-is-now-required.patch
queue-5.4/pinctrl-bcm2835-add-support-for-wake-up-interrupts.patch
queue-5.4/pinctrl-bcm2835-change-init-order-for-gpio-hogs.patch
queue-5.4/pinctrl-bcm2835-refactor-platform-data.patch
queue-5.4/pinctrl-bcm2835-match-bcm7211-compatible-string.patch
queue-5.4/pinctrl-bcm2835-add-support-for-all-gpios-on-bcm2711.patch

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