Re: [PATCH] drm/msm/dp: cleared DP_DOWNSPREAD_CTRL register before start link training

2022-09-07 Thread Abhinav Kumar
On 9/7/2022 10:21 AM, Kuogee Hsieh wrote: DOWNSPREAD_CTRL (0x107) shall be cleared to 0 upon power-on reset or an upstream device disconnect. This patch will enforce this rule by always cleared DOWNPREAD_CTRL register to 0 before start link training. At rare case that DP MSA timing parameters

[PATCH] drm/msm/dp: cleared DP_DOWNSPREAD_CTRL register before start link training

2022-09-07 Thread Kuogee Hsieh
DOWNSPREAD_CTRL (0x107) shall be cleared to 0 upon power-on reset or an upstream device disconnect. This patch will enforce this rule by always cleared DOWNPREAD_CTRL register to 0 before start link training. At rare case that DP MSA timing parameters may be mis-interpreted by the sinker which