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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-382eb7b1a4dsm58078801fa.17.2026.01.14.23.29.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Jan 2026 23:29:12 -0800 (PST) From: Dmitry Baryshkov Date: Thu, 15 Jan 2026 09:29:06 +0200 Subject: [PATCH v3 1/8] 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: <20260115-hpd-refactor-v3-1-08e2f3bcd2e0@oss.qualcomm.com> References: <20260115-hpd-refactor-v3-0-08e2f3bcd2e0@oss.qualcomm.com> In-Reply-To: <20260115-hpd-refactor-v3-0-08e2f3bcd2e0@oss.qualcomm.com> To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Kuogee Hsieh 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=kA0DAAoBizyKPgIpKNUByyZiAGlol0OgRxZ1MBFNp0tkki7+qUT/NIE7YGEFzQfNJAcdZ69bi YkBMwQAAQoAHRYhBExwhJVcsmNW8LiVf4s8ij4CKSjVBQJpaJdDAAoJEIs8ij4CKSjVhioH/13E FHzJE52YmAQhFdyvBSMPAFtSVssioEXr3PXm8t4IcDujo+95BTt4RPx4/7yzj54pddcI/MM1Gq+ d6nwzkrWyio/F3OYxfwJQKr2tj6D5tMY7NPdi3/LAJYFmjs48i8lee27y5+6MKgcqjSe0LtkwvV G6p4AH8Cbrv3hcf2M9trNwSVgAwcxNpWIpD+ejGYV6kYIdig448hT6G4wJR5QW9txrADi8nfk8M ABr4khelULaQ57GFxVGGwYyz5iHpcuJQkUtEByILkOVFgnC9otGU7KZ+i7uPDd2Vl/2nez0gPXC 1POFbvmkzvr/gJMNN2rqQaYba/jgW21luZtkPzY= X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Authority-Analysis: v=2.4 cv=BOW+bVQG c=1 sm=1 tr=0 ts=6968974a cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=IBRk8GtBIsankUNt0b0A:9 a=QEXdDO2ut3YA:10 a=iYH6xdkBrDN1Jqds4HTS:22 X-Proofpoint-ORIG-GUID: em3lXXIZydYMlBKF-BkkpoVC5t_290OF X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTE1MDA0OSBTYWx0ZWRfX+T4JLBw/WQOB u3Pj/VyF3jMdkyvEaPB1/yoolSTdOYsbyjSmUzCwXgiIO0AWizpGUTGXeHLFJ7/sYxe3Gk8loyM QLv6eZNbVouAjGYscGgQJJAHufZy/emckFCQzoqLJahY0JuVqtv1zTmHXHNf+ccCwCnxiMcbdyq H1Bo3UFeTggDiq6NcJU250twum2d7AHlq2fziOibjcvrRI+CBZQzNpfNdwTVA4g00HlOdu4ra8f N1mbMJd3JEBqdsloMjZre/yWoU8JgU0PRfmxnWDgVJbaIr8Recwkwuor+00lcX+/XH4L6PHDFRv YiqycULC5Ucu1O1UOEU336GECcwZm7ThTwY6hQuKJV76E+h9eeMSvf2SLaNOL+YCarM/ZStY9au AHa4FY4j/Af/ZxB2bswf+6hsuVZB2akypd+FleROAXngCEwH1xscPnrw99gaTe7rg4iUMpz/lup xP+I5odkySzQrEp5Rwg== X-Proofpoint-GUID: em3lXXIZydYMlBKF-BkkpoVC5t_290OF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-15_02,2026-01-14_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601150049 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 Reviewed-by: Konrad Dybcio --- 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