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ARM: tegra: fix GPIO init table programming

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Tegra's gpio_config_table() currently uses common GPIO APIs. These used
to work without requesting the GPIO, but since commit 2fccd2d96b "tegra:
Convert tegra GPIO driver to use driver model" no longer do so. This
prevents any of the GPIO initialization table from being applied to HW.
Fix gpio_config_table() to directly program the HW to solve this.

Fixes: 2fccd2d96b ("tegra: Convert tegra GPIO driver to use driver model")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Stephen Warren 2015-09-23 12:12:59 -06:00 committed by Tom Warren
parent cb96bf991b
commit f9d3cab091
1 changed files with 5 additions and 3 deletions
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8
drivers/gpio/tegra_gpio.c
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@ -211,13 +211,15 @@ void gpio_config_table(const struct tegra_gpio_config *config, int len)
for (i = 0; i < len; i++) {
switch (config[i].init) {
case TEGRA_GPIO_INIT_IN:
gpio_direction_input(config[i].gpio);
set_direction(config[i].gpio, 0);
break;
case TEGRA_GPIO_INIT_OUT0:
gpio_direction_output(config[i].gpio, 0);
set_level(config[i].gpio, 0);
set_direction(config[i].gpio, 1);
break;
case TEGRA_GPIO_INIT_OUT1:
gpio_direction_output(config[i].gpio, 1);
set_level(config[i].gpio, 1);
set_direction(config[i].gpio, 1);
break;
}
set_config(config[i].gpio, 1);