[PATCH 11/11] platform/x86: intel_cht_int33fe: Add mux mappings for the Type-C port

Hans de Goede
2017-09-01T21:49:40Z

We need to add mappings for the mux subsys to be able to find the
muxes for the fusb302 driver to be able to control the PI3USB30532
Type-C mux and the device/host mux integrated in the CHT SoC.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/platform/x86/Kconfig | 1 +
drivers/platform/x86/intel_cht_int33fe.c | 23 +++++++++++++++++++++++
2 files changed, 24 insertions(+)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index c5554577681a..4256e05ee584 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -794,6 +794,7 @@ config ACPI_CMPC
config INTEL_CHT_INT33FE
tristate "Intel Cherry Trail ACPI INT33FE Driver"
depends on X86 && ACPI && I2C && REGULATOR
+ select MULTIPLEXER
---help---
This driver add support for the INT33FE ACPI device found on
some Intel Cherry Trail devices.
diff --git a/drivers/platform/x86/intel_cht_int33fe.c b/drivers/platform/x86/intel_cht_int33fe.c
index 24a1662be81d..611b8af9cefd 100644
--- a/drivers/platform/x86/intel_cht_int33fe.c
+++ b/drivers/platform/x86/intel_cht_int33fe.c
@@ -24,6 +24,7 @@
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/module.h>
+#include <linux/mux/consumer.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>

@@ -35,6 +36,19 @@ struct cht_int33fe_data {
struct i2c_client *pi3usb30532;
};

+static struct mux_lookup cht_int33fe_mux_lookup[] = {
+ {
+ .provider = "i2c-pi3usb30532",
+ .dev_id = "i2c-fusb302",
+ .mux_name = "type-c-mode-mux",
+ },
+ {
+ .provider = "intel_cht_usb_mux",
+ .dev_id = "i2c-fusb302",
+ .mux_name = "usb-role-mux",
+ },
+};
+
/*
* Grrr I severly dislike buggy BIOS-es. At least one BIOS enumerates
* the max17047 both through the INT33FE ACPI device (it is right there
@@ -170,6 +184,9 @@ static int cht_int33fe_probe(struct i2c_client *client)
board_info.properties = fusb302_props;
board_info.irq = fusb302_irq;

+ mux_add_table(cht_int33fe_mux_lookup,
+ ARRAY_SIZE(cht_int33fe_mux_lookup));
+
data->fusb302 = i2c_acpi_new_device(dev, 2, &board_info);
if (!data->fusb302)
goto out_unregister_max17047;
@@ -193,6 +210,9 @@ static int cht_int33fe_probe(struct i2c_client *client)
if (data->max17047)
i2c_unregister_device(data->max17047);

+ mux_remove_table(cht_int33fe_mux_lookup,
+ ARRAY_SIZE(cht_int33fe_mux_lookup));
+
return -EPROBE_DEFER; /* Wait for the i2c-adapter to load */
}

@@ -205,6 +225,9 @@ static int cht_int33fe_remove(struct i2c_client *i2c)
if (data->max17047)
i2c_unregister_device(data->max17047);

+ mux_remove_table(cht_int33fe_mux_lookup,
+ ARRAY_SIZE(cht_int33fe_mux_lookup));
+
return 0;
}

--
2.13.5