Both example code [1], [2] as well as one provided by custom panel vendor set register SYS_CTRL_1 to 0x88. What exactly does the value mean is unknown due to unavailable datasheet. Align this register value with example code.
[1] https://github.com/rockchip-linux/kernel/blob/develop-4.19/drivers/gpu/drm/b... [2] https://github.com/tdjastrzebski/ICN6211-Configurator
Signed-off-by: Marek Vasut marex@denx.de Cc: Jagan Teki jagan@amarulasolutions.com Cc: Robert Foss robert.foss@linaro.org Cc: Sam Ravnborg sam@ravnborg.org Cc: Thomas Zimmermann tzimmermann@suse.de To: dri-devel@lists.freedesktop.org --- drivers/gpu/drm/bridge/chipone-icn6211.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c index e41e671fed46d..8226fefeedfc9 100644 --- a/drivers/gpu/drm/bridge/chipone-icn6211.c +++ b/drivers/gpu/drm/bridge/chipone-icn6211.c @@ -337,7 +337,7 @@ static void chipone_atomic_enable(struct drm_bridge *bridge, chipone_configure_pll(icn, mode);
ICN6211_DSI(icn, SYS_CTRL(0), 0x40); - ICN6211_DSI(icn, SYS_CTRL(1), 0x98); + ICN6211_DSI(icn, SYS_CTRL(1), 0x88);
/* icn6211 specific sequence */ ICN6211_DSI(icn, MIPI_FORCE_0, 0x20);