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Thu, 29 Aug 2024 03:19:23 -0700 (PDT) Received: from [127.0.1.1] ([112.65.12.167]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-7d22e9d4df4sm891684a12.82.2024.08.29.03.19.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Aug 2024 03:19:22 -0700 (PDT) From: Jun Nie Date: Thu, 29 Aug 2024 18:17:31 +0800 Subject: [PATCH 02/21] drm/msm/dsi: fix DSC width for the bonded DSI case Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240829-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-8-v1-2-bdb05b4b5a2e@linaro.org> References: <20240829-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-8-v1-0-bdb05b4b5a2e@linaro.org> In-Reply-To: <20240829-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-8-v1-0-bdb05b4b5a2e@linaro.org> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Jun Nie , Jonathan Marek X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1724926736; l=2920; i=jun.nie@linaro.org; s=20240403; h=from:subject:message-id; bh=rMW8hgzOVthU1PJqs91Rp1PmU+xpXc/U2BYdfZKLbeM=; b=BVhNj9KJ9uzLPwA91fAXENVPKzJaDPbKBTjgRRjyoZ1PwZV7o4Nf9bk80gC9rOKGmI3lNBimQ VB5Hqs9eJSfA7rHTx5AIfPuju1inhjMkcjiejmjJ2LebFMUN7JbYjGH X-Developer-Key: i=jun.nie@linaro.org; a=ed25519; pk=MNiBt/faLPvo+iJoP1hodyY2x6ozVXL8QMptmsKg3cc= From: Jonathan Marek For the bonded DSI case, DSC pic_width and timing calculations should use the width of a single panel instead of the total combined width. Bonded DSI can be used to drive a single panel having two input channels, or to drive two panels with a input channel on every panel that behave like single panel for display controller. Signed-off-by: Jonathan Marek Signed-off-by: Jun Nie --- drivers/gpu/drm/msm/dsi/dsi.h | 3 ++- drivers/gpu/drm/msm/dsi/dsi_host.c | 6 +++++- drivers/gpu/drm/msm/dsi/dsi_manager.c | 2 +- 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h index 87496db203d6c..35b90c462f637 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -79,7 +79,8 @@ int msm_dsi_host_power_off(struct mipi_dsi_host *host); int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, const struct drm_display_mode *mode); enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, - const struct drm_display_mode *mode); + const struct drm_display_mode *mode, + bool is_bonded_dsi); unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); int msm_dsi_host_register(struct mipi_dsi_host *host); void msm_dsi_host_unregister(struct mipi_dsi_host *host); diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 6388bb12696ff..7a4d9c071be5a 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -2489,7 +2489,8 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, } enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, - const struct drm_display_mode *mode) + const struct drm_display_mode *mode, + bool is_bonded_dsi) { struct msm_dsi_host *msm_host = to_msm_dsi_host(host); struct drm_dsc_config *dsc = msm_host->dsc; @@ -2499,6 +2500,9 @@ enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, if (!msm_host->dsc) return MODE_OK; + if (is_bonded_dsi) + pic_width = mode->hdisplay / 2; + if (pic_width % dsc->slice_width) { pr_err("DSI: pic_width %d has to be multiple of slice %d\n", pic_width, dsc->slice_width); diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index a210b7c9e5ca2..6e915b57e14bb 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -420,7 +420,7 @@ static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge *bridge, return MODE_ERROR; } - return msm_dsi_host_check_dsc(host, mode); + return msm_dsi_host_check_dsc(host, mode, IS_BONDED_DSI()); } static int dsi_mgr_bridge_attach(struct drm_bridge *bridge,