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| author | Axel Lin <axel.lin@ingics.com> | 2014-12-20 11:41:25 +0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-01-14 14:56:36 +0100 |
| commit | b0c4ae1a5176632e17627f05ae54be1b1bea3082 (patch) | |
| tree | f5b5353291b4779cb9084b8889e0f0f0c5b2abc3 | |
| parent | 3f6242eb30ca768ba56d46c40a905ea25405d12d (diff) | |
| download | u-boot-imx-b0c4ae1a5176632e17627f05ae54be1b1bea3082.zip u-boot-imx-b0c4ae1a5176632e17627f05ae54be1b1bea3082.tar.gz u-boot-imx-b0c4ae1a5176632e17627f05ae54be1b1bea3082.tar.bz2 | |
mmc: sunxi: Fix misuse of gpio_direction_input()
It does not make sense to make gpio_direction_input() return the gpio input
status. The return value of gpio_direction_input() is inconsistent if
CONFIG_DM_GPIO is defined.
And we don't need to call gpio_direction_input() int sunxi_mmc_getcd().
Just init the gpio once in mmc_resource_init() is enough.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
| -rw-r--r-- | drivers/gpio/sunxi_gpio.c | 2 | ||||
| -rw-r--r-- | drivers/mmc/sunxi_mmc.c | 7 |
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpio/sunxi_gpio.c b/drivers/gpio/sunxi_gpio.c index 44135e5..2fa50f9 100644 --- a/drivers/gpio/sunxi_gpio.c +++ b/drivers/gpio/sunxi_gpio.c @@ -75,7 +75,7 @@ int gpio_direction_input(unsigned gpio) { sunxi_gpio_set_cfgpin(gpio, SUNXI_GPIO_INPUT); - return sunxi_gpio_input(gpio); + return 0; } int gpio_direction_output(unsigned gpio, int value) diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c index 20d18d0..6234981 100644 --- a/drivers/mmc/sunxi_mmc.c +++ b/drivers/mmc/sunxi_mmc.c @@ -72,8 +72,11 @@ static int mmc_resource_init(int sdc_no) mmchost->mmc_no = sdc_no; cd_pin = sunxi_mmc_getcd_gpio(sdc_no); - if (cd_pin != -1) + if (cd_pin != -1) { ret = gpio_request(cd_pin, "mmc_cd"); + if (!ret) + ret = gpio_direction_input(cd_pin); + } return ret; } @@ -414,7 +417,7 @@ static int sunxi_mmc_getcd(struct mmc *mmc) if (cd_pin == -1) return 1; - return !gpio_direction_input(cd_pin); + return !gpio_get_value(cd_pin); } static const struct mmc_ops sunxi_mmc_ops = { |