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[2001:14ba:a0c3:3a00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54ea94ee07asm1501118e87.118.2025.05.04.17.55.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 May 2025 17:55:48 -0700 (PDT) From: Dmitry Baryshkov To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Simona Vetter Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Jessica Zhang Subject: [PATCH v5 13/13] drm/msm/hdmi: wire in hpd_enable/hpd_disable bridge ops Date: Mon, 5 May 2025 03:55:47 +0300 Message-Id: <20250505-fd-hdmi-hpd-v5-13-48541f76318c@oss.qualcomm.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505-fd-hdmi-hpd-v5-0-48541f76318c@oss.qualcomm.com> References: <20250505-fd-hdmi-hpd-v5-0-48541f76318c@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=4345; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=SzYbiSJHs1yMPXj6OmRiDQC/Js3KF24ybXscune0PUw=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBoGAuq8oeBoszbBJhsuHgaf/J9Vn91t4s2pFa0L KQP44Y9ZyeJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCaBgLqgAKCRCLPIo+Aiko 1QeeCACVtDaCnd61a6+aWoQBYA37uOTTFipnJMx09Bimgk5R2wDPo3W5QQ9KQblYw/JuXRrS6NT 3aI52WYS5+oANdWEfOynFa8FsoAVcef2bIl8BdPgY94UnlS8qrPjC8C6tgbFrnXOSJPGTY6KIIo +Zjizl/URZ6sL+KZaRISQ1ADm4DGNVZrqopTlz9P/zSWFEHT2UTb5hDS2ai8l+0qopAbDeS/vrz JJI8jqTUHbUwMJsI5B1n/XEgyuzvdgLm+5tZ7RBSK4tY0fZ35pYkpF508xGDG+L269aLDALkxmN OeVPWNQoA1xEI+khIRrkdkbqQmwpqUoXD9p2sM53CqDpTTQd X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: Vbk3JdIMhx1UDiDt1W73aRQy5TrKYsYW X-Proofpoint-ORIG-GUID: Vbk3JdIMhx1UDiDt1W73aRQy5TrKYsYW X-Authority-Analysis: v=2.4 cv=atqyCTZV c=1 sm=1 tr=0 ts=68180c9b cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=KKAkSRfTAAAA:8 a=COk6AnOGAAAA:8 a=6oMmD3cprD66TWOKKWcA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 a=cvBusfyB2V15izCimMoJ:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTA1MDAwNyBTYWx0ZWRfX8tcbZKm00AWe TEtbFj5CY3+WWGCJvklkniDLZEjnO3V6NJD2BrK4aeL4fosXacePz8FAY2agVd0NJnYdgyOAGGq iBPLopQ7UjHy6AqeIRsf0ihs4ZmSF/ta8wVmSzPZQCTwU7eXJHA1EVtfAsEISxeH5aQZaqG0ast In/reg8hNRxxqYisAdU4ioZxq7rgx9Wm9Jb8QsQTVhQrkVNqCf0KWUugPhGFraz36CZtCEk9qjU k3qGR4rPk6jTn2vpXhTY5M0uHKBJIs2PUZp6ZPDR2QzzOZTvaHCOCSNOQ/Y+eeJPhp/uzkqYi1V 0xulzKx3xs2Q8jQzwhW9PyvkEjEjNrPM6r5fKVKDDkVb1QqV+l+xqUU+rREAOyJrV0s5KC2Jyx+ fcwrWEsJFBBmv/YN91I7udtda0FBU9pXBKDtKATwioM9fmzA3cUVEt+xJdJt8qQDw3B+25UD X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-05_01,2025-04-30_01,2025-02-21_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 phishscore=0 malwarescore=0 spamscore=0 lowpriorityscore=0 mlxlogscore=999 mlxscore=0 impostorscore=0 adultscore=0 clxscore=1015 suspectscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2505050007 From: Dmitry Baryshkov The HDMI driver already has msm_hdmi_hpd_enable() and msm_hdmi_hpd_disable() functions. Wire them into the msm_hdmi_bridge_funcs, so that HPD can be enabled and disabled dynamically rather than always having HPD events generation enabled. Reviewed-by: Jessica Zhang Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/hdmi/hdmi.c | 9 --------- drivers/gpu/drm/msm/hdmi/hdmi.h | 4 ++-- drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 2 ++ drivers/gpu/drm/msm/hdmi/hdmi_hpd.c | 12 ++++++------ 4 files changed, 10 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdm= i.c index 5355cfd391c5cc3053f771dd03e24dfde16733bf..2fd388b892dcb3d83cf57b4616b= 7a65f9ff674d1 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c @@ -200,12 +200,6 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi, goto fail; } =20 - ret =3D msm_hdmi_hpd_enable(hdmi->bridge); - if (ret < 0) { - DRM_DEV_ERROR(&hdmi->pdev->dev, "failed to enable HPD: %d\n", ret); - goto fail; - } - return 0; =20 fail: @@ -261,9 +255,6 @@ static void msm_hdmi_unbind(struct device *dev, struct = device *master, struct msm_drm_private *priv =3D dev_get_drvdata(master); =20 if (priv->hdmi) { - if (priv->hdmi->bridge) - msm_hdmi_hpd_disable(priv->hdmi); - msm_hdmi_destroy(priv->hdmi); priv->hdmi =3D NULL; } diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdm= i.h index e488ee31cc865b4eee9d486d978217c00f7816bf..d5e572d10d6a14b866f13c3a0d6= 63cc6ae435ef5 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.h +++ b/drivers/gpu/drm/msm/hdmi/hdmi.h @@ -216,8 +216,8 @@ int msm_hdmi_bridge_init(struct hdmi *hdmi); void msm_hdmi_hpd_irq(struct drm_bridge *bridge); enum drm_connector_status msm_hdmi_bridge_detect( struct drm_bridge *bridge); -int msm_hdmi_hpd_enable(struct drm_bridge *bridge); -void msm_hdmi_hpd_disable(struct hdmi *hdmi); +void msm_hdmi_hpd_enable(struct drm_bridge *bridge); +void msm_hdmi_hpd_disable(struct drm_bridge *bridge); =20 /* * i2c adapter for ddc: diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/h= dmi/hdmi_bridge.c index 8ff0079abc801448e96b73ebea4730edea55ea6c..53a7ce8cc7bc7b6278eae2cbc42= c3fda8d697f6d 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c @@ -459,6 +459,8 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_fu= ncs =3D { .atomic_post_disable =3D msm_hdmi_bridge_atomic_post_disable, .edid_read =3D msm_hdmi_bridge_edid_read, .detect =3D msm_hdmi_bridge_detect, + .hpd_enable =3D msm_hdmi_hpd_enable, + .hpd_disable =3D msm_hdmi_hpd_disable, .hdmi_tmds_char_rate_valid =3D msm_hdmi_bridge_tmds_char_rate_valid, .hdmi_clear_infoframe =3D msm_hdmi_bridge_clear_infoframe, .hdmi_write_infoframe =3D msm_hdmi_bridge_write_infoframe, diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c b/drivers/gpu/drm/msm/hdmi= /hdmi_hpd.c index e03d0ca230e64d7675534074d6e14587815119b6..407e6c449ee0d84628e4cae9dd4= 3c1b1f2c0090f 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c @@ -60,7 +60,7 @@ static void msm_hdmi_phy_reset(struct hdmi *hdmi) } } =20 -int msm_hdmi_hpd_enable(struct drm_bridge *bridge) +void msm_hdmi_hpd_enable(struct drm_bridge *bridge) { struct hdmi_bridge *hdmi_bridge =3D to_hdmi_bridge(bridge); struct hdmi *hdmi =3D hdmi_bridge->hdmi; @@ -73,8 +73,8 @@ int msm_hdmi_hpd_enable(struct drm_bridge *bridge) gpiod_set_value_cansleep(hdmi->hpd_gpiod, 1); =20 ret =3D pm_runtime_resume_and_get(dev); - if (ret) - return ret; + if (WARN_ON(ret)) + return; =20 mutex_lock(&hdmi->state_mutex); msm_hdmi_set_mode(hdmi, false); @@ -102,12 +102,12 @@ int msm_hdmi_hpd_enable(struct drm_bridge *bridge) hdmi_write(hdmi, REG_HDMI_HPD_CTRL, HDMI_HPD_CTRL_ENABLE | hpd_ctrl); spin_unlock_irqrestore(&hdmi->reg_lock, flags); - - return 0; } =20 -void msm_hdmi_hpd_disable(struct hdmi *hdmi) +void msm_hdmi_hpd_disable(struct drm_bridge *bridge) { + struct hdmi_bridge *hdmi_bridge =3D to_hdmi_bridge(bridge); + struct hdmi *hdmi =3D hdmi_bridge->hdmi; struct device *dev =3D &hdmi->pdev->dev; =20 /* Disable HPD interrupt */ --=20 2.39.5