Commit e183bf31 authored by Douglas Anderson's avatar Douglas Anderson Committed by Sam Ravnborg
Browse files

drm/bridge: ti-sn65dsi86: Add some 100 us delays 



The manual has always said that we need 100 us delays in a few
places. Though it hasn't seemed to be a big deal to skip these, let's
add them in case it makes something happier.

NOTE: this fixes no known issues but it seems good to make it right.

Fixes: a095f15c ("drm/bridge: add support for sn65dsi86 bridge driver")
Signed-off-by: default avatarDouglas Anderson <dianders@chromium.org>
Acked-by: default avatarRobert Foss <robert.foss@linaro.org>
Reviewed-by: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210730084534.v2.3.I842d483139531aa4651da8338512fdf0171ff23c@changeid
parent acb06210

drivers/gpu/drm/bridge/ti-sn65dsi86.c

+6 −0
Original line number Diff line number Diff line
@@ -307,6 +307,9 @@ static int __maybe_unused ti_sn65dsi86_resume(struct device *dev) 
		return ret;

	}



	/* td2: min 100 us after regulators before enabling the GPIO */

	usleep_range(100, 110);



	gpiod_set_value(pdata->enable_gpio, 1);



	/*
@@ -1096,6 +1099,9 @@ static void ti_sn_bridge_pre_enable(struct drm_bridge *bridge) 


	if (!pdata->refclk)

		ti_sn65dsi86_enable_comms(pdata);



	/* td7: min 100 us after enable before DSI data */

	usleep_range(100, 110);

}



static void ti_sn_bridge_post_disable(struct drm_bridge *bridge)