From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ixit.cz (ip-94-112-25-9.bb.vodafone.cz [94.112.25.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BCB87274671; Mon, 1 Dec 2025 20:30:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=94.112.25.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764621027; cv=none; b=dDt2kUi5XSs1wPkoid7Hqt5ufDkHeL/2zwJyHMaR+Tw5DchUA4ddsbkYJqFM3OpJDJuV4fXJUSylT2kX8hGg+95YsfihForSFuFwFw1WSu8yqr1EN09XA8G3obYzaPAFHFell6ylWSWm4WMru+OSZaCbReiwXg4q/pes/+MWHOY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764621027; c=relaxed/simple; bh=X6hdQsH+ZZiPiysrk4XAZsfeIyf2idoUO4G0nds0+Gk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=uN2PY55HS+SEJmoyV9WUbIJGRpkpLyWjst4S1lQ70GGBn+Ueg5qwa4vAGCbz4lrMaSxuPUQYR18aXkNqFtfPkTdJ4u2HWkBNvU+W2h5UfJDdyxqjcCDB3aSbjsGyyaUif0yeGgtEM5Fogsa42vjsfae6wdSN3OG2rc+dTiBh7NA= ARC-Authentication-Results:i=1; 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bh=Gvg1J67Y3jga9kWsJVUe+1pGfVC9eWJUE4oA+qnLBYg=; b=UcKyxYszjKVous0knnFpjJpJohVpVMgoXaQh8hxkzZ/4teJqhuZrsKdaz13qJaSXxL/yIo auHrvpZndgJhVzzSoQHOAG/PJg4eM3SzrseCmDKvzQ23eu/9HhMAhF0ZkfLP9D+E9Q9pH0 EUtvHiyJqPznMhjYrqoGSikoIT78Dxs= Message-ID: Date: Mon, 1 Dec 2025 21:30:14 +0100 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 RFC 4/8] media: qcom: camss: Prepare CSID for C-PHY support To: Bryan O'Donoghue , Robert Foss , Todor Tomov , Vladimir Zapolskiy , Mauro Carvalho Chehab , Luca Weiss , Petr Hodina , Casey Connolly , "Dr. Git" Cc: Joel Selvaraj , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org References: <20251109-qcom-cphy-v1-0-165f7e79b0e1@ixit.cz> <20251109-qcom-cphy-v1-4-165f7e79b0e1@ixit.cz> Content-Language: en-US From: David Heidelberg Autocrypt: addr=david@ixit.cz; keydata= xsFNBF5v1x4BEADS3EddwsNsvVAI1XF8uQKbdYPY/GhjaSLziwVnbwv5BGwqB1tfXoHnccoA 9kTgKAbiXG/CiZFhD6l4WCIskQDKzyQN3JhCUIxh16Xyw0lECI7iqoW9LmMoN1dNKcUmCO9g lZxQaOl+1bY/7ttd7DapLh9rmBXJ2lKiMEaIpUwb/Nw0d7Enp4Jy2TpkhPywIpUn8CoJCv3/ 61qbvI9y5utB/UhfMAUXsaAgwEJyGPAqHlC0YZjaTwOu+YQUE3AFzhCbksq95CwDz4U4gdls dmv9tkATfu2OmzERZQ6vJTehK0Pu4l5KmCAzYg42I9Dy4E6b17x6NncKbcByQFOXMtG0qVUk F1yeeOQUHwu+8t3ZDMBUhCkRL/juuoqLmyDWKMc0hKNNeZ9BNXgB8fXkRLWEUfgDXsFyEkKp NxUy5bDRlivf6XfExnikk5kj9l2gGlNQwqROti/46bfbmlmc/a2GM4k8ZyalHNEAdwtXYSpP 8JJmlbQ7hNTLkc3HQLRsIocN5th/ur7pPMz1Beyp0gbE9GcOceqmdZQB80vJ01XDyCAihf6l AMnzwpXZsjqIqH9r7T7tM6tVEVbPSwPt4eZYXSoJijEBC/43TBbmxDX+5+3txRaSCRQrG9dY k3mMGM3xJLCps2KnaqMcgUnvb1KdTgEFUZQaItw7HyRd6RppewARAQABzSBEYXZpZCBIZWlk ZWxiZXJnIDxkYXZpZEBpeGl0LmN6PsLBlAQTAQgAPgIbAwULCQgHAgYVCgkICwIEFgIDAQIe AQIXgBYhBNd6Cc/u3Cu9U6cEdGACP8TTSSByBQJl+KksBQkPDaAOAAoJEGACP8TTSSBy6IAQ AMqFqVi9LLxCEcUWBn82ssQGiVSDniKpFE/tp7lMXflwhjD5xoftoWOmMYkiWE86t5x5Fsp7 afALx7SEDz599F1K1bLnaga+budu55JEAYGudD2WwpLJ0kPzRhqBwGFIx8k6F+goZJzxPDsf loAtXQE62UvEKa4KRRcZmF0GGoRsgA7vE7OnV8LMeocdD3eb2CuXLzauHAfdvqF50IfPH/sE jbzROiAZU+WgrwU946aOzrN8jVU+Cy8XAccGAZxsmPBfhTY5f2VN1IqvfaRdkKKlmWVJWGw+ ycFpAEJKFRdfcc5PSjUJcALn5C+hxzL2hBpIZJdfdfStn+DWHXNgBeRDiZj1x6vvyaC43RAb VXvRzOQfG4EaMVMIOvBjBA/FtIpb1gtXA42ewhvPnd5RVCqD9YYUxsVpJ9d+XsAy7uib3BsV W2idAEsPtoqhVhq8bCUs/G4sC2DdyGZK8MRFDJqciJSUbqA+5z1ZCuE8UOPDpZKiW6H/OuOM zDcjh0lOzr4p+/1TSg1PbUh7fQ+nbMuiT044sC1lLtJK0+Zyn0GwhR82oNM4fldNsaHRW42w QGD35+eNo5Pvb3We5XRMlBdhFnj7Siggp4J8/PJ6MJvRyC+RIJPGtbdMB2/RxWunFLn87e5w UgwR9jPMHAstuTR1yR23c4SIYoQ2fzkrRzuazsFNBF5v1x4BEADnlrbta2WL87BlEOotZUh0 zXANMrNV15WxexsirLetfqbs0AGCaTRNj+uWlTUDJRXOVIwzmF76Us3I2796+Od2ocNpLheZ 7EIkq8budtLVd1c06qJ+GMraz51zfgSIazVInNMPk9T6fz0lembji5yEcNPNNBA4sHiFmXfo IhepHFOBApjS0CiOPqowYxSTPe/DLcJ/LDwWpTi37doKPhBwlHev1BwVCbrLEIFjY0MLM0aT jiBBlyLJaTqvE48gblonu2SGaNmGtkC3VoQUQFcVYDXtlL9CVbNo7BAt5gwPcNqEqkUL60Jh FtvVSKyQh6gn7HHsyMtgltjZ3NKjv8S3yQd7zxvCn79tCKwoeNevsvoMq/bzlKxc9QiKaRPO aDj3FtW7R/3XoKJBY8Hckyug6uc2qYWRpnuXc0as6S0wfek6gauExUttBKrtSbPPHiuTeNHt NsT4+dyvaJtQKPBTbPHkXpTO8e1+YAg7kPj3aKFToE/dakIh8iqUHLNxywDAamRVn8Ha67WO AEAA3iklJ49QQk2ZyS1RJ2Ul28ePFDZ3QSr9LoJiOBZv9XkbhXS164iRB7rBZk6ZRVgCz3V6 hhhjkipYvpJ/fpjXNsVL8jvel1mYNf0a46T4QQDQx4KQj0zXJbC2fFikAtu1AULktF4iEXEI rSjFoqhd4euZ+QARAQABwsF8BBgBCAAmAhsMFiEE13oJz+7cK71TpwR0YAI/xNNJIHIFAmX4 qVAFCQ8NoDIACgkQYAI/xNNJIHKN4A/+Ine2Ii7JiuGITjJkcV6pgKlfwYdEs4eFD1pTRb/K 5dprUz3QSLP41u9OJQ23HnESMvn31UENk9ffebNoW7WxZ/8cTQY0JY/cgTTrlNXtyAlGbR3/ 3Q/VBJptf04Er7I6TaKAmqWzdVeKTw33LljpkHp02vrbOdylb4JQG/SginLV9purGAFptYRO 8JNa2J4FAQtQTrfOUjulOWMxy7XRkqK3QqLcPW79/CFn7q1yxamPkpoXUJq9/fVjlhk7P+da NYQpe4WQQnktBY29SkFnvfIAwqIVU8ix5Oz8rghuCcAdR7lEJ7hCX9bR0EE05FOXdZy5FWL9 GHvFa/Opkq3DPmFl/0nt4HJqq1Nwrr+WR6d0414oo1n2hPEllge/6iD3ZYwptTvOFKEw/v0A yqOoYSiKX9F7Ko7QO+VnYeVDsDDevKic2T/4GDpcSVd9ipiKxCQvUAzKUH7RUpqDTa+rYurm zRKcgRumz2Tc1ouHj6qINlzEe3a5ldctIn/dvR1l2Ko7GBTG+VGp9U5NOAEkGpxHG9yg6eeY fFYnMme51H/HKiyUlFiE3yd5LSmv8Dhbf+vsI4x6BOOOq4Iyop/Exavj1owGxW0hpdUGcCl1 ovlwVPO/6l/XLAmSGwdnGqok5eGZQzSst0tj9RC9O0dXO1TZocOsf0tJ8dR2egX4kxM= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 10/11/2025 12:37, Bryan O'Donoghue wrote: > On 09/11/2025 09:39, David Heidelberg via B4 Relay wrote: >> From: David Heidelberg >> >> Inherit C-PHY information from CSIPHY, so we can configure CSID >> properly. >> >> CSI2_RX_CFG0_PHY_TYPE_SEL must be set to 1, when C-PHY mode is used. >> >> Signed-off-by: David Heidelberg >> --- >>   drivers/media/platform/qcom/camss/camss-csid-gen2.c | 1 + >>   drivers/media/platform/qcom/camss/camss-csid.c      | 1 + >>   drivers/media/platform/qcom/camss/camss-csid.h      | 1 + >>   3 files changed, 3 insertions(+) >> >> diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen2.c b/ >> drivers/media/platform/qcom/camss/camss-csid-gen2.c >> index 2a1746dcc1c5b..033036ae28a4f 100644 >> --- a/drivers/media/platform/qcom/camss/camss-csid-gen2.c >> +++ b/drivers/media/platform/qcom/camss/camss-csid-gen2.c >> @@ -183,6 +183,7 @@ static void __csid_configure_rx(struct csid_device >> *csid, >>       val = (lane_cnt - 1) << CSI2_RX_CFG0_NUM_ACTIVE_LANES; >>       val |= phy->lane_assign << CSI2_RX_CFG0_DL0_INPUT_SEL; >>       val |= phy->csiphy_id << CSI2_RX_CFG0_PHY_NUM_SEL; >> +    val |= csid->phy.cphy << CSI2_RX_CFG0_PHY_TYPE_SEL; >>       writel_relaxed(val, csid->base + CSID_CSI2_RX_CFG0); >>       val = 1 << CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN; >> diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/ >> media/platform/qcom/camss/camss-csid.c >> index 5284b5857368c..68adea33cc719 100644 >> --- a/drivers/media/platform/qcom/camss/camss-csid.c >> +++ b/drivers/media/platform/qcom/camss/camss-csid.c >> @@ -1287,6 +1287,7 @@ static int csid_link_setup(struct media_entity >> *entity, >>           csid->phy.csiphy_id = csiphy->id; >>           lane_cfg = &csiphy->cfg.csi2->lane_cfg; >> +        csid->phy.cphy = lane_cfg->cphy; >>           csid->phy.lane_cnt = lane_cfg->num_data; >>           csid->phy.lane_assign = csid_get_lane_assign(lane_cfg); >>       } >> diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/ >> media/platform/qcom/camss/camss-csid.h >> index aedc96ed84b2f..a82db31bd2335 100644 >> --- a/drivers/media/platform/qcom/camss/camss-csid.h >> +++ b/drivers/media/platform/qcom/camss/camss-csid.h >> @@ -70,6 +70,7 @@ struct csid_phy_config { >>       u32 lane_assign; >>       u32 en_vc; >>       u8 need_vc_update; >> +    bool cphy; >>   }; >>   struct csid_device; >> > > I'm not convinced you need another flag for this. It should be possible > for the CSID to get a pointer to the PHY and interrogate the encoded mode. I'm not seeing elegant way to do this, if you look below my change above, others attributes are taken into csid_phy_config in similar way. Or maybe I'm not seeing some easy/clean way here? David > > --- > bod -- David Heidelberg