From f9d3cab091522c8470e9ebd4a8967d00f49efc4a Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Wed, 23 Sep 2015 12:12:59 -0600
Subject: [PATCH] ARM: tegra: fix GPIO init table programming
Tegra's gpio_config_table() currently uses common GPIO APIs. These used
to work without requesting the GPIO, but since commit 2fccd2d96bad "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: 2fccd2d96bad ("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>
---
drivers/gpio/tegra_gpio.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/tegra_gpio.c b/drivers/gpio/tegra_gpio.c
index 4921f0ff42..c0ae7719e2 100644
--- a/drivers/gpio/tegra_gpio.c
+++ b/drivers/gpio/tegra_gpio.c
@@ -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);
--
2.39.5