From deae2006a3a8d71ebf2b07a9f8621cfda0b3b6e7 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 1 Mar 2017 15:15:00 +0200 Subject: [PATCH] drm/i915/dsi: Group DPOunit clock gate workaround with PLL enable Move the DPOunit clock gate workaround to directly after the PLL enable. The exact location of the workaround does not matter and there are 2 reasons to group it with the PLL enable: 1) This moves it out of the middle of the init sequence from the spec, making it easier to follow the init sequence / compare it to the spec 2) It is grouped with the pll disable call in intel_dsi_post_disable, so for consistency it should be grouped with the pll enable in intel_dsi_pre_enable Signed-off-by: Hans de Goede Reviewed-by: Bob Paauwe Signed-off-by: Jani Nikula Link: http://patchwork.freedesktop.org/patch/msgid/1488374106-4949-5-git-send-email-jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dsi.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index ab905474b9dd..da798a579e11 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -791,14 +791,6 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder, I915_WRITE(BXT_P_DSI_REGULATOR_TX_CTRL, 0); } - intel_dsi_prepare(encoder, pipe_config); - - /* Power on, try both CRC pmic gpio and VBT */ - if (intel_dsi->gpio_panel) - gpiod_set_value_cansleep(intel_dsi->gpio_panel, 1); - intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_POWER_ON); - msleep(intel_dsi->panel_on_delay); - if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { u32 val; @@ -808,6 +800,14 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder, I915_WRITE(DSPCLK_GATE_D, val); } + intel_dsi_prepare(encoder, pipe_config); + + /* Power on, try both CRC pmic gpio and VBT */ + if (intel_dsi->gpio_panel) + gpiod_set_value_cansleep(intel_dsi->gpio_panel, 1); + intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_POWER_ON); + msleep(intel_dsi->panel_on_delay); + /* put device in ready state */ intel_dsi_device_ready(encoder); -- 2.20.1