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/bridge/icn6211.c [2] https://github.com/tdjastrzebski/ICN6211-Configurator Signed-off-by: Marek Vasut <ma...@denx.de> Cc: Jagan Teki <ja...@amarulasolutions.com> Cc: Robert Foss <robert.f...@linaro.org> Cc: Sam Ravnborg <s...@ravnborg.org> Cc: Thomas Zimmermann <tzimmerm...@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); -- 2.34.1
