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Date: Tue, 25 Aug 2020 15:50:27 -0400 From: Lyude Paul <lyude@...hat.com> To: dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org, nouveau@...ts.freedesktop.org Cc: Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org (open list) Subject: [RFC v4 20/20] drm/nouveau/kms: Start using drm_dp_read_dpcd_caps() Now that we've extracted i915's code for reading both the normal DPCD caps and extended DPCD caps into a shared helper, let's start using this in nouveau to enable us to start checking extended DPCD caps for free. Signed-off-by: Lyude Paul <lyude@...hat.com> Reviewed-by: Ben Skeggs <bskeggs@...hat.com> --- drivers/gpu/drm/nouveau/nouveau_dp.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index 89afc97ee2591..271a0a863a0e1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dp.c +++ b/drivers/gpu/drm/nouveau/nouveau_dp.c @@ -55,15 +55,13 @@ nouveau_dp_probe_dpcd(struct nouveau_connector *nv_connector, int ret; u8 *dpcd = outp->dp.dpcd; - ret = drm_dp_dpcd_read(aux, DP_DPCD_REV, dpcd, DP_RECEIVER_CAP_SIZE); - if (ret == DP_RECEIVER_CAP_SIZE && dpcd[DP_DPCD_REV]) { - ret = drm_dp_read_desc(aux, &outp->dp.desc, - drm_dp_is_branch(dpcd)); - if (ret < 0) - goto out; - } else { + ret = drm_dp_read_dpcd_caps(aux, dpcd); + if (ret < 0) + goto out; + + ret = drm_dp_read_desc(aux, &outp->dp.desc, drm_dp_is_branch(dpcd)); + if (ret < 0) goto out; - } if (nouveau_mst) { mstm = outp->dp.mstm; -- 2.26.2
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