From b8285b60bbc13ce0db0b7e3cbdffc1b681c074ba Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Fri, 15 Dec 2023 03:32:22 +0200
Subject: [PATCH] drm/msm/mdss: specify cfg bandwidth for SDM670

BugLink: https://bugs.launchpad.net/bugs/2084005

commit 8d35217149daa33358c284aca6a56d5ab92cfc6c upstream.

Lower the requested CFG bus bandwidth for the SDM670 platform. The
default value is 153600 kBps, which is twice as big as required by the
platform according to the vendor kernel.

Fixes: a55c8ff252d3 ("drm/msm/mdss: Handle the reg bus ICC path")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Tested-by: Richard Acayan <mailingradian@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/572182/
Link: https://lore.kernel.org/r/20231215013222.827975-1-dmitry.baryshkov@linaro.org
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
---
 drivers/gpu/drm/msm/msm_mdss.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
index 1dd431a17466..eb21eaa2b119 100644
--- a/drivers/gpu/drm/msm/msm_mdss.c
+++ b/drivers/gpu/drm/msm/msm_mdss.c
@@ -602,6 +602,7 @@ static const struct msm_mdss_data sm6125_data = {
 	.ubwc_dec_version = UBWC_3_0,
 	.ubwc_swizzle = 1,
 	.highest_bank_bit = 1,
+	.reg_bus_bw = 76800,
 };
 
 static const struct msm_mdss_data sm8250_data = {