diff options
| author | Simon Glass <sjg@chromium.org> | 2014-10-21 01:48:39 (GMT) |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-10-22 16:36:33 (GMT) |
| commit | 7f1961018cb494c029fcbb446e6562064735ec5e (patch) | |
| tree | 10089a45751339df4ed17fd12ed1838ed60c0ca5 /board/samsung/trats2 | |
| parent | 3a233dbfe9308943122cc2473064bb7e876577f0 (diff) | |
| download | u-boot-7f1961018cb494c029fcbb446e6562064735ec5e.tar.xz | |
dm: exynos: Make sure that GPIOs are requested
With driver model GPIOs must be requested before use. Make sure this is
done correctly.
(Note that the soft SPI part of universal is omitted, since this driver
is about to be replaced with a driver-model-aware version)
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'board/samsung/trats2')
| -rw-r--r-- | board/samsung/trats2/trats2.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/board/samsung/trats2/trats2.c b/board/samsung/trats2/trats2.c index 2924ee6..a737749 100644 --- a/board/samsung/trats2/trats2.c +++ b/board/samsung/trats2/trats2.c @@ -33,6 +33,7 @@ static inline u32 get_model_rev(void); static void check_hw_revision(void) { int modelrev = 0; + char str[12]; int i; /* @@ -41,13 +42,22 @@ static void check_hw_revision(void) * TRM say that it may cause unexcepted state and leakage current. * and pull-none is only for output function. */ - for (i = EXYNOS4X12_GPIO_M10; i < EXYNOS4X12_GPIO_M12; i++) - gpio_cfg_pin(i, S5P_GPIO_INPUT); + for (i = 0; i < 2; i++) { + int pin = i + EXYNOS4X12_GPIO_M10; + + sprintf(str, "model_rev%d", i); + gpio_request(pin, str); + gpio_cfg_pin(pin, S5P_GPIO_INPUT); + } /* GPM1[5:2]: HW_REV[3:0] */ - for (i = EXYNOS4X12_GPIO_M12; i < EXYNOS4X12_GPIO_M16; i++) { - gpio_cfg_pin(i, S5P_GPIO_INPUT); - gpio_set_pull(i, S5P_GPIO_PULL_NONE); + for (i = 0; i < 4; i++) { + int pin = i + EXYNOS4X12_GPIO_M12; + + sprintf(str, "hw_rev%d", i); + gpio_request(pin, str); + gpio_cfg_pin(pin, S5P_GPIO_INPUT); + gpio_set_pull(pin, S5P_GPIO_PULL_NONE); } /* GPM1[1:0]: MODEL_REV[1:0] */ @@ -103,10 +113,14 @@ static void board_init_i2c(void) } /* I2C_8 */ + gpio_request(EXYNOS4X12_GPIO_F14, "i2c8_clk"); + gpio_request(EXYNOS4X12_GPIO_F15, "i2c8_data"); gpio_direction_output(EXYNOS4X12_GPIO_F14, 1); gpio_direction_output(EXYNOS4X12_GPIO_F15, 1); /* I2C_9 */ + gpio_request(EXYNOS4X12_GPIO_M21, "i2c9_clk"); + gpio_request(EXYNOS4X12_GPIO_M20, "i2c9_data"); gpio_direction_output(EXYNOS4X12_GPIO_M21, 1); gpio_direction_output(EXYNOS4X12_GPIO_M20, 1); } @@ -388,6 +402,7 @@ void exynos_lcd_power_on(void) struct pmic *p = pmic_get("MAX77686_PMIC"); /* LCD_2.2V_EN: GPC0[1] */ + gpio_request(EXYNOS4X12_GPIO_C01, "lcd_2v2_en"); gpio_set_pull(EXYNOS4X12_GPIO_C01, S5P_GPIO_PULL_UP); gpio_direction_output(EXYNOS4X12_GPIO_C01, 1); @@ -400,6 +415,7 @@ void exynos_lcd_power_on(void) void exynos_reset_lcd(void) { /* reset lcd */ + gpio_request(EXYNOS4X12_GPIO_F21, "lcd_reset"); gpio_direction_output(EXYNOS4X12_GPIO_F21, 0); udelay(10); gpio_set_value(EXYNOS4X12_GPIO_F21, 1); |