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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5a156366b22sm1806805e87.77.2026.03.13.18.09.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Mar 2026 18:09:14 -0700 (PDT) From: Dmitry Baryshkov Date: Sat, 14 Mar 2026 03:09:05 +0200 Subject: [PATCH v5 01/10] drm/msm/dp: fix HPD state status bit shift value 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" Content-Transfer-Encoding: quoted-printable Message-Id: <20260314-hpd-refactor-v5-1-0c8450737d64@oss.qualcomm.com> References: <20260314-hpd-refactor-v5-0-0c8450737d64@oss.qualcomm.com> In-Reply-To: <20260314-hpd-refactor-v5-0-0c8450737d64@oss.qualcomm.com> To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Kuogee Hsieh , Yongxing Mou Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Jessica Zhang X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1209; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=hzwfWK5+EPLPBOMgkg/4Azem10iuzkilPWoxif3rO60=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBptLUy8W18Y1yfE5HK49Yw4+p+AVbfCcNE8CMe1 zRTg8C9khuJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCabS1MgAKCRCLPIo+Aiko 1duiCACQzw9dsW4ibwfY0VGKLAVvRpZSU1ckvWSmXXgpd38pxyDM4YkshNrmfTKz4BFaMh904Db ps8LI/7Dej/U68vZAajNnaZ6kkwV7IgYt2RBcCXOG/O1LahH99RMvIB3WkRgWnyeQakQi+oFpDi /vFskvbwcB0ESz5org/uNgFhedTvxIdaAwOh81xtI2mWdE+7RFIcttm5ip40KjvLev0/DMDmSUd qKAOEmJqQlvE9+etXHiktS8NYMkgBzleDLV92/4NdLQ/X3yW1eR1ehl1/AP1vO0313Qd4LareMT IjV1DiuH3rSKv3pPoLgsnEBZBsEAyqDjVY3EqPxaUXXQ+5w0 X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-GUID: hdU5PMgUreYJx7NCwSXrBLm-5pVt_e2B X-Proofpoint-ORIG-GUID: hdU5PMgUreYJx7NCwSXrBLm-5pVt_e2B X-Authority-Analysis: v=2.4 cv=auK/yCZV c=1 sm=1 tr=0 ts=69b4b53d cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=pGLkceISAAAA:8 a=EUspDBNiAAAA:8 a=IBRk8GtBIsankUNt0b0A:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE0MDAwNiBTYWx0ZWRfXziHpDOc1ue2W F8H6Bap4+K9o29MZGtI6Lu/XAyd+Ayc1eFJXAJXl6SUSO8Ol/8Nw6k+z6P2BKQre9Kk3RcDcoJ5 aGoYWlGQku5UzOFRwS6SCbP3Y90ehHX85Hqj4aqGZ8gl4DR4QVMEeEExKckRk+0jNHlCpa0w57B RC7BykSfSaq0zW2EAC5L8IlVvYTETWiTohK3eEzAOlUNLKnOLf/ZsoIjgqyMCb0NYt6UrV+bpek z8leFkBN9+wsgd9RJhq/UuQRxHj5uJSPyHpgRlIXaIP03lMYJ9F2wnZtcxPYpeXH2vejI4C7emx FxwFPQGv5eUf7T8xks0C28LXwx7qxXxrTBnQOXo5PDB+Ck2tX03YzGPuabsaR2Si+mLhjRdglEN KdroCnwU0AhMDjHS38NkzJVsGPSLVzH3OiWJFiyE06kBFw7mqPOyHynP30Eu3gROFuqy2PWs784 68tMgftZVuOHIAFJ+XQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-13_05,2026-03-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 bulkscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 priorityscore=1501 suspectscore=0 adultscore=0 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603140006 From: Jessica Zhang The HPD state status is the 3 most significant bits, not 4 bits of the HPD_INT_STATUS register. Fix the bit shift macro so that the correct bits are returned in msm_dp_aux_is_link_connected(). Fixes: 19e52bcb27c2 ("drm/msm/dp: return correct connection status after su= spend") Signed-off-by: Jessica Zhang Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/dp/dp_reg.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_reg.h b/drivers/gpu/drm/msm/dp/dp_re= g.h index 7c44d4e2cf13..3689642b7fc0 100644 --- a/drivers/gpu/drm/msm/dp/dp_reg.h +++ b/drivers/gpu/drm/msm/dp/dp_reg.h @@ -68,8 +68,8 @@ #define DP_DP_IRQ_HPD_INT_ACK (0x00000002) #define DP_DP_HPD_REPLUG_INT_ACK (0x00000004) #define DP_DP_HPD_UNPLUG_INT_ACK (0x00000008) -#define DP_DP_HPD_STATE_STATUS_BITS_MASK (0x0000000F) -#define DP_DP_HPD_STATE_STATUS_BITS_SHIFT (0x1C) +#define DP_DP_HPD_STATE_STATUS_BITS_MASK (0x00000007) +#define DP_DP_HPD_STATE_STATUS_BITS_SHIFT (0x1D) =20 #define REG_DP_DP_HPD_INT_MASK (0x0000000C) #define DP_DP_HPD_PLUG_INT_MASK (0x00000001) --=20 2.47.3