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Thu, 30 Jul 2026 03:55:05 -0700 (PDT) X-Received: by 2002:a05:6214:ca4:b0:907:87f1:3ff6 with SMTP id 6a1803df08f44-9083465ef60mr30181986d6.0.1785408905448; Thu, 30 Jul 2026 03:55:05 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6a07cb79672sm538207a12.13.2026.07.30.03.55.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 30 Jul 2026 03:55:03 -0700 (PDT) Message-ID: <8744db31-8d26-4fbf-84ec-2c8562abe327@oss.qualcomm.com> Date: Thu, 30 Jul 2026 12:55:00 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RESEND v9 7/9] media: qcom: camss: csiphy-3ph: Update Gen2 v1.1 MIPI CSI-2 C-PHY init To: David Heidelberg , Frank Li Cc: Robert Foss , Todor Tomov , Bryan O'Donoghue , Bryan O'Donoghue , Vladimir Zapolskiy , Mauro Carvalho Chehab , Luca Weiss , Petr Hodina , "Dr. Git" , Cory Keitz , Loic Poulain , Hans Verkuil , Nihal Kumar Gupta , Frank Li , Kieran Bingham , Sakari Ailus , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org References: <20260729-qcom-cphy-v9-0-1f8d9fdab037@ixit.cz> <20260729-qcom-cphy-v9-7-1f8d9fdab037@ixit.cz> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: cvvSlTbUEH41YqbMaDBBHqLx_qjv3jaj X-Proofpoint-Spam-Info: AW1haW4tMjYwNzMwMDA4MSBTYWx0ZWRfX8QQjwJ3iS/Bb N2Y84G6FoW9DnSehoJMBD2AD7c6DJcRIqfeMN0bmVeUnPwSayowfBmcr3IJFupF7lGp1LgmaoOd mRLG5HUus7XCj6lR60dISLbY10xkfyo= X-Authority-Analysis: v=2.4 cv=bZlbluPB c=1 sm=1 tr=0 ts=6a6b2d8a cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=E6sBKzCaAAAA:20 a=gjA88sGhi7DxmjppWpoA:9 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 a=bA3UWDv6hWIuX7UZL3qL:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzMwMDA4MSBTYWx0ZWRfX33/FpjsxIh00 D6O4oHy5lWhGzAWk4GfST8UL0zaAg9igpNIU1Sr+vpBPZKFt40otpFhAwCpSPLrukbOBu/MF5A+ eovP936quRnKRTAGivBVFRUHA+eL3Qo0w5AqavMC5lE/HGwie4xGTIbETL/NeqFDZGP4ISwYK3X CPCNMXXCNw7eBhdexPcqnteZu+Vnqw1iTB+ZBfb42u4N2sgX502+FYFqxFr8/yqqbabKC1dL4XD vxsJgYEyVGtnxMNcOdQDpB5/36ZrWtslcVyyJOJaLPasCWbTIpvYsLXhuBgHkgaIBiCOR5ZcI3j yEuyiD1D3BUSOhFEbmWj8wgsUdfOIXGYstZ2qLNjUy1CK1UZMiwb7HSu/9QBwS2F2oLWyvdKME6 eT4fClWDZyE4PPyAreqcLG3DVfGGjMD3DTFmHesmTSuZlPpDP/brD6dZmlvjyMYwHpgkcw5Riyq Ira6wOzX5Xt20i1s4rQ== X-Proofpoint-GUID: cvvSlTbUEH41YqbMaDBBHqLx_qjv3jaj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-30_03,2026-07-29_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 phishscore=0 impostorscore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 clxscore=1015 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607300081 On 7/30/26 12:09 AM, David Heidelberg wrote: > On 29/07/2026 23:37, Frank Li wrote: >> On Wed, Jul 29, 2026 at 10:20:02PM +0200, David Heidelberg wrote: >>> These values should improve C-PHY behaviour. Should match most recent >>> Qualcomm code. >> >> Any reference? where recent Qualcomm code? do you know the real reason? > > That's a question for Konrad. This improvement was introduced in the upstreaming process, update taken from more recent sequence. It matches the latest what we call "Hardware Settings Reference" set of values, and happens to be present in e.g. this tree: https://github.com/sony-sdm845/android_kernel_sony_sdm845/blob/lineage-20/drivers/media/platform/msm/camera_v3/cam_sensor_module/cam_csiphy/include/cam_csiphy_1_0_hwreg.h also worth noting, 845 is csiphy v1.0, not 1.1 Konrad