Unverified Commit 2a9df204 authored by Robert Foss's avatar Robert Foss
Browse files

drm/bridge: lt9611: Fix PLL being unable to lock 



This fixes PLL being unable to lock, and is derived from an equivalent
downstream commit.

Available LT9611 documentation does not list this register, neither does
LT9611UXC (which is a different chip).

This commit has been confirmed to fix HDMI output on DragonBoard 845c.

Suggested-by: default avatarAmit Pundir <amit.pundir@linaro.org>
Reviewed-by: default avatarAmit Pundir <amit.pundir@linaro.org>
Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221213150304.4189760-1-robert.foss@linaro.org
parent 7d7bf35d

drivers/gpu/drm/bridge/lontium-lt9611.c

+1 −0
Original line number Diff line number Diff line
@@ -259,6 +259,7 @@ static int lt9611_pll_setup(struct lt9611 *lt9611, const struct drm_display_mode 
		{ 0x8126, 0x55 },

		{ 0x8127, 0x66 },

		{ 0x8128, 0x88 },

		{ 0x812a, 0x20 },

	};



	regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg));