[PATCH v4 09/13] drm: bridge: icn6211: Set SYS_CTRL_1 to value used in examples

[Marek Vasut]

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

Acked-by: Maxime Ripard <maxime at cerno.tech>
Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Jagan Teki <jagan at amarulasolutions.com>
Cc: Maxime Ripard <maxime at cerno.tech>
Cc: Robert Foss <robert.foss at linaro.org>
Cc: Sam Ravnborg <sam at ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
To: dri-devel at lists.freedesktop.org
---
V2: Rebase on next-20220214
V3: Add AB from Maxime
V4: No change
---
 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 11c5a1553e7e0..9fbe9343db235 100644
--- a/drivers/gpu/drm/bridge/chipone-icn6211.c
+++ b/drivers/gpu/drm/bridge/chipone-icn6211.c
@@ -314,7 +314,7 @@ 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