Re: [PATCH 3/4] drm/msm/dp: skip LTTPR init when no LTTPRs are present
Konrad Dybcio <[email protected]>
| Newsgroups | org.freedesktop.lists.dri-devel,org.infradead.lists.linux-phy,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On 8/24/26 1:28 PM, Saurabh Anand wrote: > drm_dp_lttpr_count() returns 0 when no LTTPRs are detected and a > negative value on error. The previous code passed the result directly > to drm_dp_lttpr_init() without checking, which would call into the > LTTPR transparency-mode setup with a zero or negative repeater count. > > Add an early return for lttpr_count <= 0 to skip the init entirely > when there are no repeaters in the link, matching the expected usage > of drm_dp_lttpr_init(). Reading the body of that function, I'm not sure your statement is true Konrad