linux-kernel - [PATCH 06/21] drm/msm/dpu: Add utility to get mixer number

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Message-Id: <20240829-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-8-v1-6-bdb05b4b5a2e@linaro.org>
Date: Thu, 29 Aug 2024 18:17:35 +0800
From: Jun Nie <jun.nie@...aro.org>
To: Rob Clark <robdclark@...il.com>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 Jun Nie <jun.nie@...aro.org>
Subject: [PATCH 06/21] drm/msm/dpu: Add utility to get mixer number

Add utility to get mixer number via CRTC handler

Signed-off-by: Jun Nie <jun.nie@...aro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 7 +++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 7d0fff9472441..a27e39c525d1a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1306,6 +1306,13 @@ int dpu_crtc_vblank(struct drm_crtc *crtc, bool en)
 	return 0;
 }
 
+unsigned int dpu_crtc_get_lm_num(const struct drm_crtc_state *state)
+{
+	struct dpu_crtc_state *cstate = to_dpu_crtc_state(state);
+
+	return cstate->num_mixers;
+}
+
 #ifdef CONFIG_DEBUG_FS
 static int _dpu_debugfs_status_show(struct seq_file *s, void *data)
 {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
index b26d5fe40c721..701c35803633d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
@@ -301,5 +301,10 @@ static inline enum dpu_crtc_client_type dpu_crtc_get_client_type(
 }
 
 void dpu_crtc_frame_event_cb(struct drm_crtc *crtc, u32 event);
+/**
+ * dpu_crtc_get_lm_num - Get mixer number in this CRTC pipeline
+ * @crtc: Pointer to drm crtc object
+ */
+unsigned int dpu_crtc_get_lm_num(const struct drm_crtc_state *state);
 
 #endif /* _DPU_CRTC_H_ */

-- 
2.34.1