From 4fbaf7235e0538fc7df943abef2c025b3acad787 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Tue, 6 Dec 2016 13:22:19 +0100 Subject: drm/bridge/sii8620: add delay during cbus reset Without delay CBUS sometimes was not reset properly. Change-Id: I4392297d13c9f9b8551e292fa4e2c070202d7e7f Signed-off-by: Andrzej Hajda --- drivers/gpu/drm/bridge/sil-sii8620.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c b/drivers/gpu/drm/bridge/sil-sii8620.c index 43f3d3632a6c..3ba69756816d 100644 --- a/drivers/gpu/drm/bridge/sil-sii8620.c +++ b/drivers/gpu/drm/bridge/sil-sii8620.c @@ -888,11 +888,10 @@ static void sii8620_hw_reset(struct sii8620 *ctx) static void sii8620_cbus_reset(struct sii8620 *ctx) { - sii8620_write_seq_static(ctx, - REG_PWD_SRST, BIT_PWD_SRST_CBUS_RST - | BIT_PWD_SRST_CBUS_RST_SW_EN, - REG_PWD_SRST, BIT_PWD_SRST_CBUS_RST_SW_EN - ); + sii8620_write(ctx, REG_PWD_SRST, BIT_PWD_SRST_CBUS_RST + | BIT_PWD_SRST_CBUS_RST_SW_EN); + usleep_range(10000, 20000); + sii8620_write(ctx, REG_PWD_SRST, BIT_PWD_SRST_CBUS_RST_SW_EN); } static void sii8620_set_auto_zone(struct sii8620 *ctx) -- cgit v1.2.3