From 8b7561b1dbfd23df8433b2921274c52eea8c1c76 Mon Sep 17 00:00:00 2001 From: Charlene Liu Date: Mon, 15 Jan 2018 23:22:51 -0500 Subject: [PATCH 3489/4131] drm/amd/display: BL setting save/restore Signed-off-by: Charlene Liu Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dce/dce_abm.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c index b48190f..b231bd5 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c @@ -323,6 +323,15 @@ static bool dce_abm_immediate_disable(struct abm *abm) /* notifyDMCUMsg */ REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); + abm->stored_backlight_registers.BL_PWM_CNTL = + REG_READ(BL_PWM_CNTL); + abm->stored_backlight_registers.BL_PWM_CNTL2 = + REG_READ(BL_PWM_CNTL2); + abm->stored_backlight_registers.BL_PWM_PERIOD_CNTL = + REG_READ(BL_PWM_PERIOD_CNTL); + + REG_GET(LVTMA_PWRSEQ_REF_DIV, BL_PWM_REF_DIV, + &abm->stored_backlight_registers.LVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV); return true; } -- 2.7.4