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charset="utf-8" CSI capture may intermittently fail due to mismatched clock rates. The previous configuration violated the timing requirement stated in the i.MX8MQ Reference Manual: "The frequency of clk must be exactly equal to or greater than the RX byte clock coming from the RX DPHY." Update the clock configuration to ensure that the CSI core clock rate is equal to or greater than the incoming DPHY byte clock. The updated clock ratios are consistent with those used in NXP's downstream BSP. Fixes: bcadd5f66c2a ("arm64: dts: imx8mq: add mipi csi phy and csi bridge d= escriptions") Cc: stable@vger.kernel.org Signed-off-by: Robby Cai --- arch/arm64/boot/dts/freescale/imx8mq.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dt= s/freescale/imx8mq.dtsi index 6a25e219832c..165716d08e64 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -1377,7 +1377,7 @@ mipi_csi1: csi@30a70000 { assigned-clocks =3D <&clk IMX8MQ_CLK_CSI1_CORE>, <&clk IMX8MQ_CLK_CSI1_PHY_REF>, <&clk IMX8MQ_CLK_CSI1_ESC>; - assigned-clock-rates =3D <266000000>, <333000000>, <66000000>; + assigned-clock-rates =3D <133000000>, <100000000>, <66000000>; assigned-clock-parents =3D <&clk IMX8MQ_SYS1_PLL_266M>, <&clk IMX8MQ_SYS2_PLL_1000M>, <&clk IMX8MQ_SYS1_PLL_800M>; @@ -1429,7 +1429,7 @@ mipi_csi2: csi@30b60000 { assigned-clocks =3D <&clk IMX8MQ_CLK_CSI2_CORE>, <&clk IMX8MQ_CLK_CSI2_PHY_REF>, <&clk IMX8MQ_CLK_CSI2_ESC>; 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charset="utf-8" Enable CSI1/CSI2 bridges and the MIPI-CSI host interfaces, and add two OV5640 MIPI camera sensor nodes on I2C1 and I2C2. The resulting camera pipelines are as follows: - OV5640 on I2C2 -> MIPI CSI1 -> CSI1 - OV5640 on I2C1 -> MIPI CSI2 -> CSI2 Signed-off-by: Robby Cai --- Tested with following commands: On CSI1: media-ctl -d 0 -l "'ov5640 1-003c':0 -> 'imx8mq-mipi-csi2 30a70000.csi':0 [= 1]" media-ctl -d 0 -V "'ov5640 1-003c':0 [fmt:YUYV8_1X16/640x480 field:none]" media-ctl -d 0 -V "'imx8mq-mipi-csi2 30a70000.csi':0 [fmt:YUYV8_1X16/640x48= 0 field:none]" media-ctl -d 0 -V "'csi':0 [fmt:YUYV8_1X16/640x480 field:none]" v4l2-ctl -d 0 --set-fmt-video=3Dwidth=3D640,height=3D480,pixelformat=3DYUYV= --stream-mmap On CSI2: media-ctl -d 1 -l "'ov5640 0-003c':0 -> 'imx8mq-mipi-csi2 30b60000.csi':0 [= 1]" media-ctl -d 1 -V "'ov5640 0-003c':0 [fmt:YUYV8_1X16/640x480 field:none]" media-ctl -d 1 -V "'imx8mq-mipi-csi2 30b60000.csi':0 [fmt:YUYV8_1X16/640x48= 0 field:none]" media-ctl -d 1 -V "'csi':0 [fmt:YUYV8_1X16/640x480 field:none]" v4l2-ctl -d 1 --set-fmt-video=3Dwidth=3D640,height=3D480,pixelformat=3DYUYV= --stream-mmap --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 149 +++++++++++++++++++ 1 file changed, 149 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mq-evk.dts index d48f901487d4..8bdfbfebfcc9 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -6,6 +6,8 @@ =20 /dts-v1/; =20 +#include + #include "imx8mq.dtsi" =20 / { @@ -50,6 +52,20 @@ reg_usdhc2_vmmc: regulator-vsd-3v3 { enable-active-high; }; =20 + reg_1v5: regulator-1v5 { + compatible =3D "regulator-fixed"; + regulator-name =3D "VDD_1V5"; + regulator-min-microvolt =3D <1500000>; + regulator-max-microvolt =3D <1500000>; + }; + + reg_2v8: regulator-2v8 { + compatible =3D "regulator-fixed"; + regulator-name =3D "VDD_2V8"; + regulator-min-microvolt =3D <1800000>; + regulator-max-microvolt =3D <1800000>; + }; + buck2_reg: regulator-buck2 { pinctrl-names =3D "default"; pinctrl-0 =3D <&pinctrl_buck2>; @@ -172,6 +188,14 @@ &A53_3 { cpu-supply =3D <&buck2_reg>; }; =20 +&csi1 { + status =3D "okay"; +}; + +&csi2 { + status =3D "okay"; +}; + &ddrc { operating-points-v2 =3D <&ddrc_opp_table>; status =3D "okay"; @@ -330,12 +354,101 @@ vgen6_reg: vgen6 { }; }; }; + + camera@3c { + compatible =3D "ovti,ov5640"; + reg =3D <0x3c>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_camera2_pwdn>; + clocks =3D <&clk IMX8MQ_CLK_CLKO2>; + clock-names =3D "xclk"; + assigned-clocks =3D <&clk IMX8MQ_CLK_CLKO2>; + assigned-clock-parents =3D <&clk IMX8MQ_SYS2_PLL_200M>; + assigned-clock-rates =3D <20000000>; + powerdown-gpios =3D <&gpio1 5 GPIO_ACTIVE_HIGH>; + DOVDD-supply =3D <&sw4_reg>; + AVDD-supply =3D <®_2v8>; + DVDD-supply =3D <®_1v5>; + status =3D "okay"; + + port { + camera2_ep: endpoint { + remote-endpoint =3D <&mipi_csi2_in_ep>; + clock-lanes =3D <0>; + data-lanes =3D <1 2>; + }; + }; + }; +}; + +&i2c2 { + clock-frequency =3D <100000>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_i2c2>; + status =3D "okay"; + + camera@3c { + compatible =3D "ovti,ov5640"; + reg =3D <0x3c>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_camera1_pwdn>, <&pinctrl_camera_rst>; + clocks =3D <&clk IMX8MQ_CLK_CLKO2>; + clock-names =3D "xclk"; + assigned-clocks =3D <&clk IMX8MQ_CLK_CLKO2>; + assigned-clock-parents =3D <&clk IMX8MQ_SYS2_PLL_200M>; + assigned-clock-rates =3D <20000000>; + powerdown-gpios =3D <&gpio1 3 GPIO_ACTIVE_HIGH>; + DOVDD-supply =3D <&sw4_reg>; + AVDD-supply =3D <®_2v8>; + DVDD-supply =3D <®_1v5>; + status =3D "okay"; + + port { + camera1_ep: endpoint { + remote-endpoint =3D <&mipi_csi1_in_ep>; + clock-lanes =3D <0>; + data-lanes =3D <1 2>; + }; + }; + }; }; =20 &lcdif { status =3D "okay"; }; =20 +&mipi_csi1 { + status =3D "okay"; + + ports { + port@0 { + reg =3D <0>; + + mipi_csi1_in_ep: endpoint { + remote-endpoint =3D <&camera1_ep>; + data-lanes =3D <1 2>; + bus-type =3D ; + }; + }; + }; +}; + +&mipi_csi2 { + status =3D "okay"; + + ports { + port@0 { + reg =3D <0>; + + mipi_csi2_in_ep: endpoint { + remote-endpoint =3D <&camera2_ep>; + data-lanes =3D <1 2>; + bus-type =3D <4>; + }; + }; + }; +}; + &mipi_dsi { #address-cells =3D <1>; #size-cells =3D <0>; @@ -532,12 +645,41 @@ &wdog1 { }; =20 &iomuxc { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_hog>; + + pinctrl_hog: hoggrp { + fsl,pins =3D < + /* MCLK for cameras on both CSI1 and CSI2 */ + MX8MQ_IOMUXC_GPIO1_IO15_CCMSRCGPCMIX_CLKO2 0x59 + >; + }; + pinctrl_buck2: vddarmgrp { fsl,pins =3D < MX8MQ_IOMUXC_GPIO1_IO13_GPIO1_IO13 0x19 >; }; =20 + pinctrl_camera1_pwdn: camera1pwdngrp { + fsl,pins =3D < + MX8MQ_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x19 + >; + }; + + pinctrl_camera2_pwdn: camera2pwdngrp { + fsl,pins =3D < + MX8MQ_IOMUXC_GPIO1_IO05_GPIO1_IO5 0x19 + >; + }; + + pinctrl_camera_rst: camerarstgrp { + fsl,pins =3D < + /* Reset PIN for cameras on both CSI1 and CSI2 */ + MX8MQ_IOMUXC_GPIO1_IO06_GPIO1_IO6 0x19 + >; + }; + pinctrl_fec1: fec1grp { fsl,pins =3D < MX8MQ_IOMUXC_ENET_MDC_ENET1_MDC 0x3 @@ -565,6 +707,13 @@ MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA 0x4000007f >; }; =20 + pinctrl_i2c2: i2c2grp { + fsl,pins =3D < + MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL 0x4000007f + MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA 0x4000007f + >; + }; + pinctrl_ir: irgrp { fsl,pins =3D < MX8MQ_IOMUXC_GPIO1_IO12_GPIO1_IO12 0x4f --=20 2.37.1