From 095022b9aa0546a0f3d3fb5f42c82b4004103864 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Mon, 27 Jul 2015 15:12:39 +0100 Subject: [PATCH] drm/msm: add calls to prepare and unprepare panel Prepare the panel before it's enabled and un-prepare after disable, this will make sure that the regulators are switched on and off correctly. Tested it on APQ8064 based IFC6410 with panel. Signed-off-by: Srinivas Kandagatla Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/mdp/mdp4/mdp4_lcdc_encoder.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_lcdc_encoder.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_lcdc_encoder.c index c04843376c54..4cd6e721aa0a 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_lcdc_encoder.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_lcdc_encoder.c @@ -346,8 +346,10 @@ static void mdp4_lcdc_encoder_disable(struct drm_encoder *encoder) mdp4_write(mdp4_kms, REG_MDP4_LCDC_ENABLE, 0); - if (panel) + if (panel) { drm_panel_disable(panel); + drm_panel_unprepare(panel); + } /* * Wait for a vsync so we know the ENABLE=0 latched before @@ -412,8 +414,10 @@ static void mdp4_lcdc_encoder_enable(struct drm_encoder *encoder) if (ret) dev_err(dev->dev, "failed to enable lcdc_clk: %d\n", ret); - if (panel) + if (panel) { + drm_panel_prepare(panel); drm_panel_enable(panel); + } setup_phy(encoder); -- 2.20.1