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Thu, 13 Jun 2024 10:05:12 -0700 (PDT) Received: from umbar.lan ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-52ca2825733sm287312e87.60.2024.06.13.10.05.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jun 2024 10:05:11 -0700 (PDT) From: Dmitry Baryshkov Date: Thu, 13 Jun 2024 20:05:10 +0300 Subject: [PATCH v2 7/8] drm/msm/dpu: support setting the TE source Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240613-dpu-handle-te-signal-v2-7-67a0116b5366@linaro.org> References: <20240613-dpu-handle-te-signal-v2-0-67a0116b5366@linaro.org> In-Reply-To: <20240613-dpu-handle-te-signal-v2-0-67a0116b5366@linaro.org> To: Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krishna Manikandan Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2478; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=QUCPmblJLuOJth7ZyUHXw5QYG/4ROl41Z9y5v31PglU=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBmaybBgNJopZrFl3W9f3Uix8iVD9Cn/0h0V/H/W Q4JhCCmF+uJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZmsmwQAKCRCLPIo+Aiko 1cmnB/4vxIQkTqqcPlHS5vscCiQrq401V8LOYwOI6sO0WLfu28SenfTJSbZihQA9d6fEXydnggC ojbnQbpArL33k6dN4OXDGNsMrSCNAUtj4HtF4resPlCGAfpIWvPiGWkZcYQsGd23s3mNxTiKUnz MK7PP9odFnr2YI8dJIEKyCT8tqYIxoGnbPHKGkOTvihdNAUyebreidNORDgukMwCYTYNjwWZRie 4ah+pnwaOKadp0zsQ05lx2XLFJVI7+w6ezXYBE94e/CPPiu0Si2/5LwDeNI6TyRxVSgNwAz75gf EHPUQJGn/n/W1p6o2F6ajcqWVYZ8AJYGCeTBVChMBOsgPLEk X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A Make the DPU driver use the TE source specified in the DT. If none is specified, the driver defaults to the first GPIO (mdp_vsync0). Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 44 ++++++++++++++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index e9991f3756d4..6fcb3cf4a382 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -505,6 +505,44 @@ static void dpu_kms_wait_flush(struct msm_kms *kms, unsigned crtc_mask) dpu_kms_wait_for_commit_done(kms, crtc); } +static const char *dpu_vsync_sources[] = { + [DPU_VSYNC_SOURCE_GPIO_0] = "mdp_vsync_p", + [DPU_VSYNC_SOURCE_GPIO_1] = "mdp_vsync_s", + [DPU_VSYNC_SOURCE_GPIO_2] = "mdp_vsync_e", + [DPU_VSYNC_SOURCE_INTF_0] = "mdp_intf0", + [DPU_VSYNC_SOURCE_INTF_1] = "mdp_intf1", + [DPU_VSYNC_SOURCE_INTF_2] = "mdp_intf2", + [DPU_VSYNC_SOURCE_INTF_3] = "mdp_intf3", + [DPU_VSYNC_SOURCE_WD_TIMER_0] = "timer0", + [DPU_VSYNC_SOURCE_WD_TIMER_1] = "timer1", + [DPU_VSYNC_SOURCE_WD_TIMER_2] = "timer2", + [DPU_VSYNC_SOURCE_WD_TIMER_3] = "timer3", + [DPU_VSYNC_SOURCE_WD_TIMER_4] = "timer4", +}; + +static int dpu_kms_dsi_set_te_source(struct msm_display_info *info, + struct msm_dsi *dsi) +{ + const char *te_source = msm_dsi_get_te_source(dsi); + int i; + + if (!te_source) { + info->vsync_source = DPU_VSYNC_SOURCE_GPIO_0; + return 0; + } + + /* we can not use match_string since dpu_vsync_sources is a sparse array */ + for (i = 0; i < ARRAY_SIZE(dpu_vsync_sources); i++) { + if (dpu_vsync_sources[i] && + !strcmp(dpu_vsync_sources[i], te_source)) { + info->vsync_source = i; + return 0; + } + } + + return -EINVAL; +} + static int _dpu_kms_initialize_dsi(struct drm_device *dev, struct msm_drm_private *priv, struct dpu_kms *dpu_kms) @@ -543,7 +581,11 @@ static int _dpu_kms_initialize_dsi(struct drm_device *dev, info.is_cmd_mode = msm_dsi_is_cmd_mode(priv->dsi[i]); - info.vsync_source = DPU_VSYNC_SOURCE_GPIO_0; + rc = dpu_kms_dsi_set_te_source(&info, priv->dsi[i]); + if (rc) { + DPU_ERROR("failed to identify TE source for dsi display\n"); + return rc; + } encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_DSI, &info); if (IS_ERR(encoder)) {