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[199.106.103.254]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-241d1ef678dsm219865355ad.39.2025.08.08.17.35.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Aug 2025 17:35:36 -0700 (PDT) From: Jessica Zhang Date: Fri, 08 Aug 2025 17:35:13 -0700 Subject: [PATCH v2 01/12] 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: <20250808-hpd-refactor-v2-1-7f4e1e741aa3@oss.qualcomm.com> References: <20250808-hpd-refactor-v2-0-7f4e1e741aa3@oss.qualcomm.com> In-Reply-To: <20250808-hpd-refactor-v2-0-7f4e1e741aa3@oss.qualcomm.com> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Jessica Zhang , Kuogee Hsieh Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Yongxing Mou X-Mailer: b4 0.15-dev-a9b2a X-Developer-Signature: v=1; a=ed25519-sha256; t=1754699734; l=1021; i=jessica.zhang@oss.qualcomm.com; s=20230329; h=from:subject:message-id; bh=dlkqBGODh3j3sXW+PUd6RTyGAht6wmJhJ9vt60MBI2Q=; b=ijI/+bZvfr7WaBEdK9j7OTWq9Mt0uUE/lrcNkpvprQoAvNK6hxioFg/i7npV3sgZFasfJwhTe 2rPCFARIkY5DEARh6P00mQa7MQ5/83Lu2BVkZld78HPNmiSTf2FE6Qy X-Developer-Key: i=jessica.zhang@oss.qualcomm.com; a=ed25519; pk=gAUCgHZ6wTJOzQa3U0GfeCDH7iZLlqIEPo4rrjfDpWE= X-Proofpoint-GUID: okN0jh_-tivdEIKivCXdLSL2VHMT9gcQ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODA2MDAwOSBTYWx0ZWRfX+eWJGWPNfIrt CyOteIcOgJguSmku2dgP+dtwy66xEZ7wVb1RVb4Z0OhX5+0+yHaOKBtbbJH6DTASfSpsWvzDftP PmBRRQ4C2F7yd5lCftn7gJithF2Yh2khubyKxLYWRCAgqL+39Qt08jJFM/ATjirHwPzDwde1eth XqYmr3NMOYxa9+FV8wNOwS6pNXGGUJmbIERYGTXT7grsyemgPwFCPnxjklh0RFSm6iKlRWJIEKJ WH1xSLJVm/J74NsQX461uvwlSoRAeTngT7EBiJqhiUkufduLxeH13yJvip27OaOfWpnruDDEZoN WGs4r+u6+G+nOeNDRGLIRRJAjvoEi2MEzMVW1BueDKcUfEgNfPOog1msNrtwzw9b/1XK661NccZ fiW4GT+k X-Proofpoint-ORIG-GUID: okN0jh_-tivdEIKivCXdLSL2VHMT9gcQ X-Authority-Analysis: v=2.4 cv=NsLRc9dJ c=1 sm=1 tr=0 ts=689697da cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=EUspDBNiAAAA:8 a=jiMY0BZLP9KyD5qzzL8A:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-08_08,2025-08-06_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 impostorscore=0 bulkscore=0 phishscore=0 adultscore=0 malwarescore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508060009 The HPD state status is the last 3 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 --- drivers/gpu/drm/msm/dp/dp_reg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/dp/dp_reg.h b/drivers/gpu/drm/msm/dp/dp_re= g.h index 7c44d4e2cf13..b851efc132ea 100644 --- a/drivers/gpu/drm/msm/dp/dp_reg.h +++ b/drivers/gpu/drm/msm/dp/dp_reg.h @@ -69,7 +69,7 @@ #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_SHIFT (0x1D) =20 #define REG_DP_DP_HPD_INT_MASK (0x0000000C) #define DP_DP_HPD_PLUG_INT_MASK (0x00000001) --=20 2.50.1