[v2,2/2] pinctrl: qcom: sc8180x: add ACPI probe support

Commit Message

Shawn Guo March 3, 2021, 1:26 p.m. UTC

It adds ACPI probe support with tile offsets passed over to msm core
driver via sc8180x_tile_offsets, as TLMM is described a single memory
region in ACPI DSDT.

Signed-off-by: Shawn Guo <[e-mail]>
---
 drivers/pinctrl/qcom/Kconfig           |  2 +-
 drivers/pinctrl/qcom/pinctrl-sc8180x.c | 49 ++++++++++++++++++++++++--
 2 files changed, 48 insertions(+), 3 deletions(-)

Comments

Andy Shevchenko March 3, 2021, 2:04 p.m. UTC | #1

On Wed, Mar 03, 2021 at 09:26:22PM +0800, Shawn Guo wrote:
> It adds ACPI probe support with tile offsets passed over to msm core
> driver via sc8180x_tile_offsets, as TLMM is described a single memory
> region in ACPI DSDT.

> +#include <linux/acpi.h>

It's not used here.

property.h
mod_devicetable.h

Patch

diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index 6853a896c476..9f0218c4f9b3 100644
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -222,7 +222,7 @@  config PINCTRL_SC7280
 
 config PINCTRL_SC8180X
 	tristate "Qualcomm Technologies Inc SC8180x pin controller driver"
-	depends on GPIOLIB && OF
+	depends on GPIOLIB && (OF || ACPI)
 	select PINCTRL_MSM
 	help
 	  This is the pinctrl, pinmux, pinconf and gpiolib driver for the
diff --git a/drivers/pinctrl/qcom/pinctrl-sc8180x.c b/drivers/pinctrl/qcom/pinctrl-sc8180x.c
index b765bf667574..3ec74ea37c1b 100644
--- a/drivers/pinctrl/qcom/pinctrl-sc8180x.c
+++ b/drivers/pinctrl/qcom/pinctrl-sc8180x.c
@@ -4,6 +4,7 @@ 
  * Copyright (c) 2020-2021, Linaro Ltd.
  */
 
+#include <linux/acpi.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
@@ -17,6 +18,12 @@  static const char * const sc8180x_tiles[] = {
 	"west"
 };
 
+static const u32 sc8180x_tile_offsets[] = {
+	0x00d00000,
+	0x00500000,
+	0x00100000
+};
+
 enum {
 	SOUTH,
 	EAST,
@@ -1557,6 +1564,13 @@  static const struct msm_pingroup sc8180x_groups[] = {
 	[193] = SDC_QDSD_PINGROUP(sdc2_data, 0x4b2000, 9, 0),
 };
 
+static const int sc8180x_acpi_reserved_gpios[] = {
+	0, 1, 2, 3,
+	47, 48, 49, 50,
+	126, 127, 128, 129,
+	-1 /* terminator */
+};
+
 static const struct msm_gpio_wakeirq_map sc8180x_pdc_map[] = {
 	{ 3, 31 }, { 5, 32 }, { 8, 33 }, { 9, 34 }, { 10, 100 }, { 12, 104 },
 	{ 24, 37 }, { 26, 38 }, { 27, 41 }, { 28, 42 }, { 30, 39 }, { 36, 43 },
@@ -1588,13 +1602,43 @@  static struct msm_pinctrl_soc_data sc8180x_pinctrl = {
 	.nwakeirq_map = ARRAY_SIZE(sc8180x_pdc_map),
 };
 
+static const struct msm_pinctrl_soc_data sc8180x_acpi_pinctrl = {
+	.tiles = sc8180x_tiles,
+	.ntiles = ARRAY_SIZE(sc8180x_tiles),
+	.tile_offsets = sc8180x_tile_offsets,
+	.pins = sc8180x_pins,
+	.npins = ARRAY_SIZE(sc8180x_pins),
+	.groups = sc8180x_groups,
+	.ngroups = ARRAY_SIZE(sc8180x_groups),
+	.reserved_gpios = sc8180x_acpi_reserved_gpios,
+	.ngpios = 191,
+};
+
 static int sc8180x_pinctrl_probe(struct platform_device *pdev)
 {
-	return msm_pinctrl_probe(pdev, &sc8180x_pinctrl);
+	const struct msm_pinctrl_soc_data *soc_data;
+
+	soc_data = device_get_match_data(&pdev->dev);
+	if (!soc_data)
+		return -EINVAL;
+
+	return msm_pinctrl_probe(pdev, soc_data);
 }
 
+static const struct acpi_device_id sc8180x_pinctrl_acpi_match[] = {
+	{
+		.id = "QCOM040D",
+		.driver_data = (kernel_ulong_t) &sc8180x_acpi_pinctrl,
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, sc8180x_pinctrl_acpi_match);
+
 static const struct of_device_id sc8180x_pinctrl_of_match[] = {
-	{ .compatible = "qcom,sc8180x-tlmm", },
+	{
+		.compatible = "qcom,sc8180x-tlmm",
+		.data = &sc8180x_pinctrl,
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sc8180x_pinctrl_of_match);
@@ -1603,6 +1647,7 @@  static struct platform_driver sc8180x_pinctrl_driver = {
 	.driver = {
 		.name = "sc8180x-pinctrl",
 		.of_match_table = sc8180x_pinctrl_of_match,
+		.acpi_match_table = sc8180x_pinctrl_acpi_match,
 	},
 	.probe = sc8180x_pinctrl_probe,
 	.remove = msm_pinctrl_remove,