From: Marek Vasut marex@denx.de
[ Upstream commit 01338bb82fed40a6a234c2b36a92367c8671adf0 ]
The current CLRSIPO count is still marginal and does not work with high DSI clock rates in burst mode. Increase it further to allow the DSI link to work at up to 1Gbps lane speed. This returns the counts to defaults as provided by datasheet.
Fixes: ea6490b02240b ("drm/bridge: tc358767: increase CLRSIPO count") Signed-off-by: Marek Vasut marex@denx.de Acked-by: Maxime Ripard maxime@cerno.tech Link: https://patchwork.freedesktop.org/patch/msgid/20221016003556.406441-1-marex@... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/tc358767.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 2a58eb271f701..b9b681086fc49 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1264,10 +1264,10 @@ static int tc_dsi_rx_enable(struct tc_data *tc) u32 value; int ret;
- regmap_write(tc->regmap, PPI_D0S_CLRSIPOCOUNT, 5); - regmap_write(tc->regmap, PPI_D1S_CLRSIPOCOUNT, 5); - regmap_write(tc->regmap, PPI_D2S_CLRSIPOCOUNT, 5); - regmap_write(tc->regmap, PPI_D3S_CLRSIPOCOUNT, 5); + regmap_write(tc->regmap, PPI_D0S_CLRSIPOCOUNT, 25); + regmap_write(tc->regmap, PPI_D1S_CLRSIPOCOUNT, 25); + regmap_write(tc->regmap, PPI_D2S_CLRSIPOCOUNT, 25); + regmap_write(tc->regmap, PPI_D3S_CLRSIPOCOUNT, 25); regmap_write(tc->regmap, PPI_D0S_ATMR, 0); regmap_write(tc->regmap, PPI_D1S_ATMR, 0); regmap_write(tc->regmap, PPI_TX_RX_TA, TTA_GET | TTA_SURE);