diff options
Diffstat (limited to 'board/toradex/apalis_imx6/apalis_imx6.c')
| -rw-r--r-- | board/toradex/apalis_imx6/apalis_imx6.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/board/toradex/apalis_imx6/apalis_imx6.c b/board/toradex/apalis_imx6/apalis_imx6.c index b7b96b79ce..5782eeeb0c 100644 --- a/board/toradex/apalis_imx6/apalis_imx6.c +++ b/board/toradex/apalis_imx6/apalis_imx6.c @@ -72,6 +72,8 @@ static unsigned char config_block[roundup(CONFIG_BLOCK_BUFFER_SIZE, ARCH_DMA_MIN PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ PAD_CTL_HYS | PAD_CTL_SRE_SLOW) +#define TRISTATE (PAD_CTL_HYS | PAD_CTL_SPEED_MED) + #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm) int dram_init(void) @@ -445,8 +447,14 @@ static iomux_v3_cfg_t const backlight_pads[] = { MX6_PAD_EIM_DA13__GPIO3_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL), #define RGB_BACKLIGHT_GP IMX_GPIO_NR(3, 13) /* TODO PWM not GPIO */ - MX6_PAD_EIM_DA14__GPIO3_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL), -#define RGB_BACKLIGHTPWM_GP IMX_GPIO_NR(3, 14) + /* additional CPU pin on BKL_PWM, keep in tristate */ + MX6_PAD_EIM_DA14__GPIO3_IO14 | MUX_PAD_CTRL(TRISTATE), + /* PWM4 pin */ + MX6_PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL), +#define RGB_BACKLIGHTPWM_GP IMX_GPIO_NR(2, 10) + /* buffer output enable 0: buffer enabled*/ + MX6_PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(WEAK_PULLUP), +#define RGB_BACKLIGHTPWM_OE IMX_GPIO_NR(5, 2) /* PSAVE# integrated VDAC */ MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL), #define VGA_PSAVE_NOT_GP IMX_GPIO_NR(6, 31) @@ -573,6 +581,7 @@ static void enable_lvds(struct display_info_t const *dev) writel(reg, &iomux->gpr[2]); gpio_direction_output(RGB_BACKLIGHT_GP, 1); gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0); + gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0); } static void enable_rgb(struct display_info_t const *dev) @@ -582,6 +591,7 @@ static void enable_rgb(struct display_info_t const *dev) ARRAY_SIZE(rgb_pads)); gpio_direction_output(RGB_BACKLIGHT_GP, 1); gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0); + gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0); } static void enable_vga(struct display_info_t const *dev) @@ -798,6 +808,7 @@ static void setup_display(void) ARRAY_SIZE(backlight_pads)); /* use 0 for EDT 7", use 1 for LG fullHD panel */ gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0); + gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0); gpio_direction_output(RGB_BACKLIGHT_GP, 1); } #endif /* defined(CONFIG_VIDEO_IPUV3) */ |