drm/bridge: ti-sn65dsi83: Fix delay after reset deassert to match spec

[ Upstream commit 4b03d5e0d3e86ee492d54254927d020dc0fe8acf ]

The datasheet specifies a delay of 10 milliseconds, but the current
driver only waits for 1 ms. Fix this to make sure the initialization
sequence meets the spec.

Fixes: ceb515ba29ba ("drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 driver")
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122081219.20143-1-frieder@fris.de
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
index 7ba9467..047c14d 100644 (file)
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@@ -346,7 +346,7 @@ static void sn65dsi83_atomic_enable(struct drm_bridge *bridge,
 
        /* Deassert reset */
        gpiod_set_value_cansleep(ctx->enable_gpio, 1);
-       usleep_range(1000, 1100);
+       usleep_range(10000, 11000);
 
        /* Get the LVDS format from the bridge state. */
        bridge_state = drm_atomic_get_new_bridge_state(state, bridge);