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From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Hans de Goede <hdegoede@redhat.com>,
        Mario Limonciello <mario.limonciello@amd.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Daniel Scally <djrscally@gmail.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>,
        linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org
Cc:     Mark Gross <mgross@linux.intel.com>
Subject: [PATCH v2 4/8] platform/x86: intel_skl_int3472: Use ACPI GPIO resource directly
Date:   Fri, 18 Jun 2021 15:55:12 +0300
Message-Id: <20210618125516.53510-4-andriy.shevchenko@linux.intel.com>
In-Reply-To: <20210618125516.53510-1-andriy.shevchenko@linux.intel.com>
References: <20210618125516.53510-1-andriy.shevchenko@linux.intel.com>
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When we call acpi_gpio_get_io_resource(), the output will be
the pointer to the ACPI GPIO resource. Use it directly instead of
dereferencing the generic resource.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
v2: new patch
 .../intel_skl_int3472_clk_and_regulator.c     |  7 ++---
 .../intel-int3472/intel_skl_int3472_common.h  |  2 +-
 .../intel_skl_int3472_discrete.c              | 28 +++++++++----------
 3 files changed, 17 insertions(+), 20 deletions(-)

diff --git a/drivers/platform/x86/intel-int3472/intel_skl_int3472_clk_and_regulator.c b/drivers/platform/x86/intel-int3472/intel_skl_int3472_clk_and_regulator.c
index ceee860e2c07..49ea1e86c193 100644
--- a/drivers/platform/x86/intel-int3472/intel_skl_int3472_clk_and_regulator.c
+++ b/drivers/platform/x86/intel-int3472/intel_skl_int3472_clk_and_regulator.c
@@ -131,10 +131,10 @@ int skl_int3472_register_clock(struct int3472_discrete_device *int3472)
 }
 
 int skl_int3472_register_regulator(struct int3472_discrete_device *int3472,
-				   struct acpi_resource *ares)
+				   struct acpi_resource_gpio *agpio)
 {
-	char *path = ares->data.gpio.resource_source.string_ptr;
 	const struct int3472_sensor_config *sensor_config;
+	char *path = agpio->resource_source.string_ptr;
 	struct regulator_consumer_supply supply_map;
 	struct regulator_init_data init_data = { };
 	struct regulator_config cfg = { };
@@ -168,8 +168,7 @@ int skl_int3472_register_regulator(struct int3472_discrete_device *int3472,
 						int3472->regulator.supply_name,
 						&int3472_gpio_regulator_ops);
 
-	int3472->regulator.gpio = acpi_get_and_request_gpiod(path,
-							     ares->data.gpio.pin_table[0],
+	int3472->regulator.gpio = acpi_get_and_request_gpiod(path, agpio->pin_table[0],
 							     "int3472,regulator");
 	if (IS_ERR(int3472->regulator.gpio)) {
 		dev_err(int3472->dev, "Failed to get regulator GPIO line\n");
diff --git a/drivers/platform/x86/intel-int3472/intel_skl_int3472_common.h b/drivers/platform/x86/intel-int3472/intel_skl_int3472_common.h
index 6fdf78584219..765e01ec1604 100644
--- a/drivers/platform/x86/intel-int3472/intel_skl_int3472_common.h
+++ b/drivers/platform/x86/intel-int3472/intel_skl_int3472_common.h
@@ -113,6 +113,6 @@ union acpi_object *skl_int3472_get_acpi_buffer(struct acpi_device *adev,
 int skl_int3472_fill_cldb(struct acpi_device *adev, struct int3472_cldb *cldb);
 int skl_int3472_register_clock(struct int3472_discrete_device *int3472);
 int skl_int3472_register_regulator(struct int3472_discrete_device *int3472,
-				   struct acpi_resource *ares);
+				   struct acpi_resource_gpio *agpio);
 
 #endif
diff --git a/drivers/platform/x86/intel-int3472/intel_skl_int3472_discrete.c b/drivers/platform/x86/intel-int3472/intel_skl_int3472_discrete.c
index 48a00a1f4fb6..fd681d2a73fe 100644
--- a/drivers/platform/x86/intel-int3472/intel_skl_int3472_discrete.c
+++ b/drivers/platform/x86/intel-int3472/intel_skl_int3472_discrete.c
@@ -103,11 +103,11 @@ skl_int3472_get_sensor_module_config(struct int3472_discrete_device *int3472)
 }
 
 static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int3472,
-					  struct acpi_resource *ares,
+					  struct acpi_resource_gpio *agpio,
 					  const char *func, u32 polarity)
 {
-	char *path = ares->data.gpio.resource_source.string_ptr;
 	const struct int3472_sensor_config *sensor_config;
+	char *path = agpio->resource_source.string_ptr;
 	struct gpiod_lookup *table_entry;
 	struct acpi_device *adev;
 	acpi_handle handle;
@@ -145,7 +145,7 @@ static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int347
 
 	table_entry = &int3472->gpios.table[int3472->n_sensor_gpios];
 	table_entry->key = acpi_dev_name(adev);
-	table_entry->chip_hwnum = ares->data.gpio.pin_table[0];
+	table_entry->chip_hwnum = agpio->pin_table[0];
 	table_entry->con_id = func;
 	table_entry->idx = 0;
 	table_entry->flags = polarity;
@@ -156,23 +156,22 @@ static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int347
 }
 
 static int skl_int3472_map_gpio_to_clk(struct int3472_discrete_device *int3472,
-				       struct acpi_resource *ares, u8 type)
+				       struct acpi_resource_gpio *agpio, u8 type)
 {
-	char *path = ares->data.gpio.resource_source.string_ptr;
+	char *path = agpio->resource_source.string_ptr;
+	u16 pin = agpio->pin_table[0];
 	struct gpio_desc *gpio;
 
 	switch (type) {
 	case INT3472_GPIO_TYPE_CLK_ENABLE:
-		gpio = acpi_get_and_request_gpiod(path, ares->data.gpio.pin_table[0],
-						  "int3472,clk-enable");
+		gpio = acpi_get_and_request_gpiod(path, pin, "int3472,clk-enable");
 		if (IS_ERR(gpio))
 			return (PTR_ERR(gpio));
 
 		int3472->clock.ena_gpio = gpio;
 		break;
 	case INT3472_GPIO_TYPE_PRIVACY_LED:
-		gpio = acpi_get_and_request_gpiod(path, ares->data.gpio.pin_table[0],
-						  "int3472,privacy-led");
+		gpio = acpi_get_and_request_gpiod(path, pin, "int3472,privacy-led");
 		if (IS_ERR(gpio))
 			return (PTR_ERR(gpio));
 
@@ -242,7 +241,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
 
 	if (!obj) {
 		dev_warn(int3472->dev, "No _DSM entry for GPIO pin %u\n",
-			 ares->data.gpio.pin_table[0]);
+			 agpio->pin_table[0]);
 		return 1;
 	}
 
@@ -250,15 +249,14 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
 
 	switch (type) {
 	case INT3472_GPIO_TYPE_RESET:
-		ret = skl_int3472_map_gpio_to_sensor(int3472, ares, "reset",
+		ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "reset",
 						     GPIO_ACTIVE_LOW);
 		if (ret)
 			err_msg = "Failed to map reset pin to sensor\n";
 
 		break;
 	case INT3472_GPIO_TYPE_POWERDOWN:
-		ret = skl_int3472_map_gpio_to_sensor(int3472, ares,
-						     "powerdown",
+		ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "powerdown",
 						     GPIO_ACTIVE_LOW);
 		if (ret)
 			err_msg = "Failed to map powerdown pin to sensor\n";
@@ -266,13 +264,13 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
 		break;
 	case INT3472_GPIO_TYPE_CLK_ENABLE:
 	case INT3472_GPIO_TYPE_PRIVACY_LED:
-		ret = skl_int3472_map_gpio_to_clk(int3472, ares, type);
+		ret = skl_int3472_map_gpio_to_clk(int3472, agpio, type);
 		if (ret)
 			err_msg = "Failed to map GPIO to clock\n";
 
 		break;
 	case INT3472_GPIO_TYPE_POWER_ENABLE:
-		ret = skl_int3472_register_regulator(int3472, ares);
+		ret = skl_int3472_register_regulator(int3472, agpio);
 		if (ret)
 			err_msg = "Failed to map regulator to sensor\n";
 
-- 
2.30.2