[08/18] gpio: sch311x: Implement .get_direction()

Message ID	20180629063544.3826-8-linus.walleij@linaro.org
State	Accepted
Commit	f9e03b0ef10ce5040714783a09cf12df26bcb3d7
Headers	show Delivered-To: patch@linaro.org Received-SPF: pass (google.com: best guess record for domain of linux-gpio-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; From: Linus Walleij <linus.walleij@linaro.org> To: linux-gpio@vger.kernel.org Cc: Linus Walleij <linus.walleij@linaro.org>, Bruno Randolf <br1@einfach.org> Subject: [PATCH 08/18] gpio: sch311x: Implement .get_direction() Date: Fri, 29 Jun 2018 08:35:34 +0200 Message-Id: <20180629063544.3826-8-linus.walleij@linaro.org> In-Reply-To: <20180629063544.3826-1-linus.walleij@linaro.org> References: <20180629063544.3826-1-linus.walleij@linaro.org> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk
Series	[01/18] gpio: rc5t583: Include the right header \| expand [01/18] gpio: rc5t583: Include the right header [02/18] gpio: rcar: Include the right header [03/18] gpio: rdc321x: Include the right header [04/18] gpio: sa1100: Include the right header [05/18] gpio: sch: Include the right header [06/18] gpio: sch: Implement .get_direction() [07/18] gpio: sch311x: Include the right header [08/18] gpio: sch311x: Implement .get_direction() [09/18] gpio: sch311x: Use RMW to change direction [10/18] gpio: sch311x: Implement open drain support [11/18] gpio: sch311x: Replace unsigned char with u8 [12/18] gpio: spear-spics: Include the right header [13/18] gpio: sta2x11: Include the right header [14/18] gpio: sta2x11: Use BIT() macro [15/18] gpio: sta2x11: Inline regs macro [16/18] gpio: stmpe: Include the right header [17/18] gpio: stp-xway: Include the right header [18/18] gpio: syscon: Include the right header

Message ID

20180629063544.3826-8-linus.walleij@linaro.org

State

Accepted

Commit

f9e03b0ef10ce5040714783a09cf12df26bcb3d7

Headers

Received-SPF: pass (google.com: best guess record for domain of
	linux-gpio-owner@vger.kernel.org designates 209.132.180.67 as
	permitted sender) client-ip=209.132.180.67; 
From: Linus Walleij <linus.walleij@linaro.org>
To: linux-gpio@vger.kernel.org
Cc: Linus Walleij <linus.walleij@linaro.org>, Bruno Randolf <br1@einfach.org>
Subject: [PATCH 08/18] gpio: sch311x: Implement .get_direction()
Date: Fri, 29 Jun 2018 08:35:34 +0200
Message-Id: <20180629063544.3826-8-linus.walleij@linaro.org>
In-Reply-To: <20180629063544.3826-1-linus.walleij@linaro.org>
References: <20180629063544.3826-1-linus.walleij@linaro.org>
Sender: linux-gpio-owner@vger.kernel.org
Precedence: bulk

Series

[01/18] gpio: rc5t583: Include the right header | expand

Commit Message

Linus Walleij June 29, 2018, 6:35 a.m. UTC

It's pretty simple to implement the .get_direction() for this
chip, so let's just do it.

Cc: Bruno Randolf <br1@einfach.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

---
 drivers/gpio/gpio-sch311x.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

-- 
2.17.0

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diff --git a/drivers/gpio/gpio-sch311x.c b/drivers/gpio/gpio-sch311x.c
index 8bc2bf45e5da..ed64f7fa23b1 100644
--- a/drivers/gpio/gpio-sch311x.c
+++ b/drivers/gpio/gpio-sch311x.c
@@ -221,6 +221,18 @@  static int sch311x_gpio_direction_out(struct gpio_chip *chip, unsigned offset,
 	return 0;
 }
 
+static int sch311x_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
+{
+	struct sch311x_gpio_block *block = gpiochip_get_data(chip);
+	unsigned char data;
+
+	spin_lock(&block->lock);
+	data = inb(block->runtime_reg + block->config_regs[offset]);
+	spin_unlock(&block->lock);
+
+	return !!(data & SCH311X_GPIO_CONF_IN);
+}
+
 static int sch311x_gpio_probe(struct platform_device *pdev)
 {
 	struct sch311x_pdev_data *pdata = dev_get_platdata(&pdev->dev);
@@ -253,6 +265,7 @@  static int sch311x_gpio_probe(struct platform_device *pdev)
 		block->chip.free = sch311x_gpio_free;
 		block->chip.direction_input = sch311x_gpio_direction_in;
 		block->chip.direction_output = sch311x_gpio_direction_out;
+		block->chip.get_direction = sch311x_gpio_get_direction;
 		block->chip.get = sch311x_gpio_get;
 		block->chip.set = sch311x_gpio_set;
 		block->chip.ngpio = 8;

[08/18] gpio: sch311x: Implement .get_direction()

Commit Message

Patch