diff options
| author |   Linus Walleij <linus.walleij@linaro.org> | 2019-02-19 21:32:02 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-02-19 21:48:20 +0100 |
| commit | 11da905412833d9b369a6a09a401f87149d674dc (patch) | |
| tree | 5c7495136333f30486194050e6afd983e271c570 /drivers/gpio | |
| parent | gpio: of: Apply regulator-gpio quirk only to enable-gpios (diff) | |
| download | linux-dev-11da905412833d9b369a6a09a401f87149d674dc.tar.xz linux-dev-11da905412833d9b369a6a09a401f87149d674dc.zip | |
gpio: tegra: Fix offset of pinctrl calls
This patch hunk is a lightly modified version of a diff found
in a Tegra code dump from a product tree. It makes a lot of
sense because this is what most drivers do.
Cc: Thierry Reding <treding@nvidia.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Dmitry Osipenko <digetx@gmail.com>
Cc: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-tegra.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 02f6db925fd5..1ececf2c3282 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -2,6 +2,7 @@ * arch/arm/mach-tegra/gpio.c * * Copyright (c) 2010 Google, Inc + * Copyright (c) 2011-2016, NVIDIA CORPORATION. All rights reserved. * * Author: * Erik Gilling <konkers@google.com> @@ -141,14 +142,14 @@ static void tegra_gpio_disable(struct tegra_gpio_info *tgi, unsigned int gpio) static int tegra_gpio_request(struct gpio_chip *chip, unsigned int offset) { - return pinctrl_gpio_request(offset); + return pinctrl_gpio_request(chip->base + offset); } static void tegra_gpio_free(struct gpio_chip *chip, unsigned int offset) { struct tegra_gpio_info *tgi = gpiochip_get_data(chip); - pinctrl_gpio_free(offset); + pinctrl_gpio_free(chip->base + offset); tegra_gpio_disable(tgi, offset); } @@ -176,10 +177,18 @@ static int tegra_gpio_direction_input(struct gpio_chip *chip, unsigned int offset) { struct tegra_gpio_info *tgi = gpiochip_get_data(chip); + int ret; tegra_gpio_mask_write(tgi, GPIO_MSK_OE(tgi, offset), offset, 0); tegra_gpio_enable(tgi, offset); - return 0; + + ret = pinctrl_gpio_direction_input(chip->base + offset); + if (ret < 0) + dev_err(tgi->dev, + "Failed to set pinctrl input direction of GPIO %d: %d", + chip->base + offset, ret); + + return ret; } static int tegra_gpio_direction_output(struct gpio_chip *chip, @@ -187,11 +196,19 @@ static int tegra_gpio_direction_output(struct gpio_chip *chip, int value) { struct tegra_gpio_info *tgi = gpiochip_get_data(chip); + int ret; tegra_gpio_set(chip, offset, value); tegra_gpio_mask_write(tgi, GPIO_MSK_OE(tgi, offset), offset, 1); tegra_gpio_enable(tgi, offset); - return 0; + + ret = pinctrl_gpio_direction_output(chip->base + offset); + if (ret < 0) + dev_err(tgi->dev, + "Failed to set pinctrl output direction of GPIO %d: %d", + chip->base + offset, ret); + + return ret; } static int tegra_gpio_get_direction(struct gpio_chip *chip, |