diff options
| author | Simon Glass <sjg@chromium.org> | 2015-07-02 18:16:13 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-08-05 21:06:14 -0600 |
| commit | a507454b137e870cd418be326b5bc2e96f580efa (patch) | |
| tree | 92b930bee0044f0aa3c409db95fd095f6e6c0547 | |
| parent | c95ed7d9e76e81c3728438ccbd3bbd119cf46886 (diff) | |
exynos: Add support for the DisplayPort hotplug detect
Allow this function to be selected using the pinmux API.
Signed-off-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | arch/arm/cpu/armv7/exynos/pinmux.c | 10 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-exynos/periph.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c index be43e224fa..e97cb376ff 100644 --- a/arch/arm/cpu/armv7/exynos/pinmux.c +++ b/arch/arm/cpu/armv7/exynos/pinmux.c @@ -496,6 +496,16 @@ static int exynos5_pinmux_config(int peripheral, int flags) case PERIPH_ID_SPI4: exynos5_spi_config(peripheral); break; + case PERIPH_ID_DPHPD: + /* Set Hotplug detect for DP */ + gpio_cfg_pin(EXYNOS5_GPIO_X07, S5P_GPIO_FUNC(0x3)); + + /* + * Hotplug detect should have an external pullup; disable the + * internal pulldown so they don't fight. + */ + gpio_set_pull(EXYNOS5_GPIO_X07, S5P_GPIO_PULL_NONE); + break; default: debug("%s: invalid peripheral %d", __func__, peripheral); return -1; diff --git a/arch/arm/include/asm/arch-exynos/periph.h b/arch/arm/include/asm/arch-exynos/periph.h index 5c1c3d4a93..fdc9e87c69 100644 --- a/arch/arm/include/asm/arch-exynos/periph.h +++ b/arch/arm/include/asm/arch-exynos/periph.h @@ -53,6 +53,7 @@ enum periph_id { PERIPH_ID_PWM2, PERIPH_ID_PWM3, PERIPH_ID_PWM4, + PERIPH_ID_DPHPD, PERIPH_ID_I2C10 = 203, PERIPH_ID_NONE = -1, |