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[2a02:8388:6584:6400:d322:7350:96d2:429d]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-aa69afa395csm22555066b.71.2024.12.09.04.01.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Dec 2024 04:01:10 -0800 (PST) From: Luca Weiss Date: Mon, 09 Dec 2024 13:01:06 +0100 Subject: [PATCH 2/2] media: qcom: camss: Restrict endpoint bus-type to D-PHY 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: <20241209-camss-dphy-v1-2-5f1b6f25ed92@fairphone.com> References: <20241209-camss-dphy-v1-0-5f1b6f25ed92@fairphone.com> In-Reply-To: <20241209-camss-dphy-v1-0-5f1b6f25ed92@fairphone.com> To: Robert Foss , Todor Tomov , Bryan O'Donoghue , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Barnabas Czeman , AngeloGioacchino Del Regno , Caleb Connolly , David Heidelberg Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Luca Weiss X-Mailer: b4 0.14.2 Currently the Qualcomm CAMSS driver only supports D-PHY while the hardware on most SoCs also supports C-PHY. Until this support is added, check for D-PHY to make it somewhat explicit that C-PHY won't work. Signed-off-by: Luca Weiss Reviewed-by: Bryan O'Donoghue Reviewed-by: Vladimir Zapolskiy Tested-by: Vladimir Zapolskiy --- drivers/media/platform/qcom/camss/camss.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/plat= form/qcom/camss/camss.c index 9fb31f4c18adee886cd0bcf84438a8f27635e07f..b99af35074cdf6fa794a0d2f0d5= 4ecf12ac354d9 100644 --- a/drivers/media/platform/qcom/camss/camss.c +++ b/drivers/media/platform/qcom/camss/camss.c @@ -1855,6 +1855,15 @@ static int camss_of_parse_endpoint_node(struct devic= e *dev, if (ret) return ret; =20 + /* + * Most SoCs support both D-PHY and C-PHY standards, but currently only + * D-PHY is supported in the driver. + */ + if (vep.bus_type !=3D V4L2_MBUS_CSI2_DPHY) { + dev_err(dev, "Unsupported bus type %d\n", vep.bus_type); + return -EINVAL; + } + csd->interface.csiphy_id =3D vep.base.port; =20 mipi_csi2 =3D &vep.bus.mipi_csi2; --=20 2.47.1