diff options
Diffstat (limited to 'drivers/video/sunxi_display.c')
| -rw-r--r-- | drivers/video/sunxi_display.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c index 56f6c8e349..50b16a9129 100644 --- a/drivers/video/sunxi_display.c +++ b/drivers/video/sunxi_display.c @@ -12,6 +12,7 @@ #include <asm/arch/clock.h> #include <asm/arch/display.h> #include <asm/arch/gpio.h> +#include <asm/arch/pwm.h> #include <asm/global_data.h> #include <asm/gpio.h> #include <asm/io.h> @@ -743,6 +744,16 @@ static void sunxi_lcdc_backlight_enable(void) gpio_direction_output(pin, 1); pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_PWM); +#ifdef SUNXI_PWM_PIN0 + if (pin == SUNXI_PWM_PIN0) { + writel(SUNXI_PWM_CTRL_POLARITY0(PWM_ON) | + SUNXI_PWM_CTRL_ENABLE0 | + SUNXI_PWM_CTRL_PRESCALE0(0xf), SUNXI_PWM_CTRL_REG); + writel(SUNXI_PWM_PERIOD_80PCT, SUNXI_PWM_CH0_PERIOD); + sunxi_gpio_set_cfgpin(pin, SUNXI_PWM_MUX); + return; + } +#endif if (pin >= 0) gpio_direction_output(pin, PWM_ON); } |