From: Ville Syrjälä Date: Mon, 18 Apr 2016 16:17:51 +0000 (+0300) Subject: drm/i915: Wait for power cycle delay after turning off DSI panel power X-Git-Tag: MMI-PSA29.97-13-9~7427^2~45^2~225 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1d5c65edd930ff05ef036bbade87275e4b5b7b90;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git drm/i915: Wait for power cycle delay after turning off DSI panel power The power cycle delay starts _after_ turning off the panel power. Do the msleep after frobbing the pmic panel power gpio. Also toss in a FIXME about optimizing away needless waits. Cc: Shobhit Kumar Cc: Jani Nikula Fixes: fc45e8219907 ("drm/i915: Use the CRC gpio for panel enable/disable") Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1460996271-29795-1-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Shobhit Kumar Reviewed-by: Jani Nikula --- diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 34328ddaaab5..2b22bb9bb86f 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -688,11 +688,16 @@ static void intel_dsi_post_disable(struct intel_encoder *encoder) drm_panel_unprepare(intel_dsi->panel); msleep(intel_dsi->panel_off_delay); - msleep(intel_dsi->panel_pwr_cycle_delay); /* Panel Disable over CRC PMIC */ if (intel_dsi->gpio_panel) gpiod_set_value_cansleep(intel_dsi->gpio_panel, 0); + + /* + * FIXME As we do with eDP, just make a note of the time here + * and perform the wait before the next panel power on. + */ + msleep(intel_dsi->panel_pwr_cycle_delay); } static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,