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Message-ID: <b4207e22-8d9c-4223-8b28-272d2650661f@linaro.org>
Date: Wed, 15 Oct 2025 21:49:21 +0300
From: Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>
To: Vikram Sharma <quic_vikramsa@...cinc.com>, mchehab@...nel.org,
robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
andersson@...nel.org, konradybcio@...nel.org, hverkuil-cisco@...all.nl,
cros-qcom-dts-watchers@...omium.org, catalin.marinas@....com, will@...nel.org
Cc: linux-arm-kernel@...ts.infradead.org, quic_svankada@...cinc.com,
linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Konrad Dybcio <konrad.dybcio@....qualcomm.com>, bryan.odonoghue@...aro.org
Subject: Re: [PATCH v4 2/2] arm64: dts: qcom: qcs8300: Add support for camss
On 10/15/25 16:01, Vikram Sharma wrote:
> Add changes to support the camera subsystem on the QCS8300.
>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> Signed-off-by: Vikram Sharma <quic_vikramsa@...cinc.com>
> ---
> arch/arm64/boot/dts/qcom/qcs8300.dtsi | 171 ++++++++++++++++++++++++++
> 1 file changed, 171 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> index 8d78ccac411e..acd475555115 100644
> --- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> @@ -4769,6 +4769,177 @@ videocc: clock-controller@...0000 {
> #power-domain-cells = <1>;
> };
>
> + camss: isp@...8000 {
> + compatible = "qcom,qcs8300-camss";
> +
> + reg = <0x0 0xac78000 0x0 0x1000>,
> + <0x0 0xac7a000 0x0 0xf00>,
> + <0x0 0xac7c000 0x0 0xf00>,
> + <0x0 0xac84000 0x0 0xf00>,
> + <0x0 0xac88000 0x0 0xf00>,
> + <0x0 0xac8c000 0x0 0xf00>,
> + <0x0 0xac90000 0x0 0xf00>,
> + <0x0 0xac94000 0x0 0xf00>,
> + <0x0 0xac9c000 0x0 0x2000>,
> + <0x0 0xac9e000 0x0 0x2000>,
> + <0x0 0xaca0000 0x0 0x2000>,
> + <0x0 0xacac000 0x0 0x400>,
> + <0x0 0xacad000 0x0 0x400>,
> + <0x0 0xacae000 0x0 0x400>,
> + <0x0 0xac4d000 0x0 0xf000>,
> + <0x0 0xac60000 0x0 0xf000>,
> + <0x0 0xac85000 0x0 0xd00>,
> + <0x0 0xac89000 0x0 0xd00>,
> + <0x0 0xac8d000 0x0 0xd00>,
> + <0x0 0xac91000 0x0 0xd00>,
> + <0x0 0xac95000 0x0 0xd00>;
> + reg-names = "csid_wrapper",
> + "csid0",
The list of 'reg-names' is not alphanumerically sorted, this is a newly
introduced sorting order pattern of CAMSS 'reg' property values.
> + "csid1",
> + "csid_lite0",
> + "csid_lite1",
> + "csid_lite2",
> + "csid_lite3",
> + "csid_lite4",
> + "csiphy0",
> + "csiphy1",
> + "csiphy2",
> + "tpg0",
> + "tpg1",
> + "tpg2",
> + "vfe0",
> + "vfe1",
> + "vfe_lite0",
> + "vfe_lite1",
> + "vfe_lite2",
> + "vfe_lite3",
> + "vfe_lite4";
> +
> + clocks = <&camcc CAM_CC_CAMNOC_AXI_CLK>,
> + <&camcc CAM_CC_CORE_AHB_CLK>,
> + <&camcc CAM_CC_CPAS_AHB_CLK>,
> + <&camcc CAM_CC_CPAS_FAST_AHB_CLK>,
> + <&camcc CAM_CC_CPAS_IFE_LITE_CLK>,
> + <&camcc CAM_CC_CPAS_IFE_0_CLK>,
> + <&camcc CAM_CC_CPAS_IFE_1_CLK>,
> + <&camcc CAM_CC_CSID_CLK>,
> + <&camcc CAM_CC_CSIPHY0_CLK>,
> + <&camcc CAM_CC_CSI0PHYTIMER_CLK>,
> + <&camcc CAM_CC_CSIPHY1_CLK>,
> + <&camcc CAM_CC_CSI1PHYTIMER_CLK>,
> + <&camcc CAM_CC_CSIPHY2_CLK>,
> + <&camcc CAM_CC_CSI2PHYTIMER_CLK>,
> + <&camcc CAM_CC_CSID_CSIPHY_RX_CLK>,
> + <&gcc GCC_CAMERA_HF_AXI_CLK>,
> + <&gcc GCC_CAMERA_SF_AXI_CLK>,
> + <&camcc CAM_CC_ICP_AHB_CLK>,
> + <&camcc CAM_CC_IFE_0_CLK>,
> + <&camcc CAM_CC_IFE_0_FAST_AHB_CLK>,
> + <&camcc CAM_CC_IFE_1_CLK>,
> + <&camcc CAM_CC_IFE_1_FAST_AHB_CLK>,
> + <&camcc CAM_CC_IFE_LITE_CLK>,
> + <&camcc CAM_CC_IFE_LITE_AHB_CLK>,
> + <&camcc CAM_CC_IFE_LITE_CPHY_RX_CLK>,
> + <&camcc CAM_CC_IFE_LITE_CSID_CLK>;
> + clock-names = "camnoc_axi",
> + "core_ahb",
> + "cpas_ahb",
> + "cpas_fast_ahb_clk",
> + "cpas_vfe_lite",
> + "cpas_vfe0",
> + "cpas_vfe1",
> + "csid",
> + "csiphy0",
> + "csiphy0_timer",
> + "csiphy1",
> + "csiphy1_timer",
> + "csiphy2",
> + "csiphy2_timer",
> + "csiphy_rx",
> + "gcc_axi_hf",
> + "gcc_axi_sf",
> + "icp_ahb",
Please remove the ICP clock, it has no users in the driver, and if needed,
it will be added later on.
> + "vfe0",
> + "vfe0_fast_ahb",
> + "vfe1",
> + "vfe1_fast_ahb",
> + "vfe_lite",
> + "vfe_lite_ahb",
> + "vfe_lite_cphy_rx",
> + "vfe_lite_csid";
> +
> + interrupts = <GIC_SPI 565 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 564 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 468 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 359 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 759 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 758 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 604 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 477 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 478 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 479 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 545 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 546 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 547 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 465 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 467 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 469 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 360 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 761 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 760 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 605 IRQ_TYPE_EDGE_RISING>;
> + interrupt-names = "csid0",
> + "csid1",
> + "csid_lite0",
> + "csid_lite1",
> + "csid_lite2",
> + "csid_lite3",
> + "csid_lite4",
> + "csiphy0",
> + "csiphy1",
> + "csiphy2",
> + "tpg0",
> + "tpg1",
> + "tpg2",
> + "vfe0",
> + "vfe1",
> + "vfe_lite0",
> + "vfe_lite1",
> + "vfe_lite2",
> + "vfe_lite3",
> + "vfe_lite4";
> +
> + interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
> + &config_noc SLAVE_CAMERA_CFG QCOM_ICC_TAG_ACTIVE_ONLY>,
> + <&mmss_noc MASTER_CAMNOC_HF QCOM_ICC_TAG_ALWAYS
> + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
> + interconnect-names = "ahb",
> + "hf_0";
> +
> + iommus = <&apps_smmu 0x2400 0x20>;
> +
> + power-domains = <&camcc CAM_CC_TITAN_TOP_GDSC>;
> + power-domain-names = "top";
'power-domain-names' property is redundant, since there is just one power domain.
> +
> + status = "disabled";
There should be no empty lines between proprties.
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + port@0 {
There shall be an empty line before a subnode declaration.
> + reg = <0>;
> + };
> +
> + port@1 {
> + reg = <1>;
> + };
> +
> + port@2 {
> + reg = <2>;
> + };
> + };
> + };
> +
> camcc: clock-controller@...0000 {
> compatible = "qcom,qcs8300-camcc";
> reg = <0x0 0x0ade0000 0x0 0x20000>;
--
Best wishes,
Vladimir
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