From 416cdfd36e99eac9b985ad054e36e1742ea970b2 Mon Sep 17 00:00:00 2001 From: Nicolas Boichat Date: Fri, 17 Feb 2017 08:19:04 +0800 Subject: [PATCH] hammer: Change PWM frequency to 10 kHz backlight driver required frequency between 5-100 kHz, let's pick 10 kHz. BRANCH=none BUG=chrome-os-partner:63010 TEST=Backlight works, scope output shows correct frequency. Change-Id: I8355ea87824f368a76236c97b9e4b7d40eca5612 Reviewed-on: https://chromium-review.googlesource.com/444484 Commit-Ready: Nicolas Boichat Tested-by: Toshak Singhal Reviewed-by: Vincent Palatin --- board/hammer/board.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/board/hammer/board.c b/board/hammer/board.c index 2f03082a6b..73ade52cbb 100644 --- a/board/hammer/board.c +++ b/board/hammer/board.c @@ -51,7 +51,7 @@ const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); /* PWM channels. Must be in the exactly same order as in enum pwm_channel. */ const struct pwm_t pwm_channels[] = { - {STM32_TIM(TIM_KBLIGHT), STM32_TIM_CH(1), 0, 100 /* Hz */ }, + {STM32_TIM(TIM_KBLIGHT), STM32_TIM_CH(1), 0, 10000 /* Hz */ }, }; BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);