linux-kernel - [RFT PATCH 3/4] platform/x86: int3472: clk_and

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Date:   Tue, 26 Sep 2023 16:59:42 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Daniel Scally <djrscally@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>
Cc:     linux-gpio@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [RFT PATCH 3/4] platform/x86: int3472: clk_and_regulator: use GPIO lookup tables

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Instead of acpi_get_and_request_gpiod() + gpiod_toggle_active_low(), use
temporary lookup tables with appropriate lookup flags.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 .../x86/intel/int3472/clk_and_regulator.c     | 22 ++++++++-----------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/platform/x86/intel/int3472/clk_and_regulator.c b/drivers/platform/x86/intel/int3472/clk_and_regulator.c
index ef4b3141efcd..ec4c4848a2c4 100644
--- a/drivers/platform/x86/intel/int3472/clk_and_regulator.c
+++ b/drivers/platform/x86/intel/int3472/clk_and_regulator.c
@@ -174,20 +174,16 @@ int skl_int3472_register_gpio_clock(struct int3472_discrete_device *int3472,
 	if (int3472->clock.cl)
 		return -EBUSY;
 
-	int3472->clock.ena_gpio = acpi_get_and_request_gpiod(path, agpio->pin_table[0],
-							     "int3472,clk-enable");
+	int3472->clock.ena_gpio = skl_int3472_gpiod_get_from_temp_lookup(
+					int3472->dev, path, agpio->pin_table[0],
+					"int3472,clk-enable", polarity,
+					GPIOD_OUT_LOW);
 	if (IS_ERR(int3472->clock.ena_gpio)) {
 		ret = PTR_ERR(int3472->clock.ena_gpio);
 		int3472->clock.ena_gpio = NULL;
 		return dev_err_probe(int3472->dev, ret, "getting clk-enable GPIO\n");
 	}
 
-	if (polarity == GPIO_ACTIVE_LOW)
-		gpiod_toggle_active_low(int3472->clock.ena_gpio);
-
-	/* Ensure the pin is in output mode and non-active state */
-	gpiod_direction_output(int3472->clock.ena_gpio, 0);
-
 	init.name = kasprintf(GFP_KERNEL, "%s-clk",
 			      acpi_dev_name(int3472->adev));
 	if (!init.name) {
@@ -314,17 +310,17 @@ 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, agpio->pin_table[0],
-							     "int3472,regulator");
+	/* Ensure the pin is in output mode and non-active state */
+	int3472->regulator.gpio = skl_int3472_gpiod_get_from_temp_lookup(
+					int3472->dev, path, agpio->pin_table[0],
+					"int3472,regulator", GPIO_ACTIVE_HIGH,
+					GPIOD_OUT_LOW);
 	if (IS_ERR(int3472->regulator.gpio)) {
 		ret = PTR_ERR(int3472->regulator.gpio);
 		int3472->regulator.gpio = NULL;
 		return dev_err_probe(int3472->dev, ret, "getting regulator GPIO\n");
 	}
 
-	/* Ensure the pin is in output mode and non-active state */
-	gpiod_direction_output(int3472->regulator.gpio, 0);
-
 	cfg.dev = &int3472->adev->dev;
 	cfg.init_data = &init_data;
 	cfg.ena_gpiod = int3472->regulator.gpio;
-- 
2.39.2