Messages in this thread | | | Subject | Re: [PATCH v6 13/13] arm64: dts: imx8mq: Add node to G2 hardware | From | Benjamin Gaignard <> | Date | Fri, 26 Mar 2021 15:33:22 +0100 |
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Le 26/03/2021 à 15:24, Philipp Zabel a écrit : > On Thu, Mar 18, 2021 at 09:20:46AM +0100, Benjamin Gaignard wrote: >> Split VPU node in two: one for G1 and one for G2 since they are >> different hardware blocks. >> Add syscon for hardware control block. >> Remove reg-names property that is useless. >> Each VPU node only need one interrupt. >> >> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> >> --- >> version 5: >> - use syscon instead of VPU reset >> >> arch/arm64/boot/dts/freescale/imx8mq.dtsi | 43 ++++++++++++++++++----- >> 1 file changed, 34 insertions(+), 9 deletions(-) >> >> diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi >> index 17c449e12c2e..b537d153ebbd 100644 >> --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi >> +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi >> @@ -1329,15 +1329,16 @@ usb3_phy1: usb-phy@382f0040 { >> status = "disabled"; >> }; >> >> - vpu: video-codec@38300000 { >> + vpu_ctrl: syscon@38320000 { >> + compatible = "nxp,imx8mq-vpu-ctrl", "syscon"; >> + reg = <0x38320000 0x10000>; >> + }; >> + >> + vpu_g1: video-codec@38300000 { >> compatible = "nxp,imx8mq-vpu"; >> - reg = <0x38300000 0x10000>, >> - <0x38310000 0x10000>, >> - <0x38320000 0x10000>; >> - reg-names = "g1", "g2", "ctrl"; >> - interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>, >> - <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>; >> - interrupt-names = "g1", "g2"; >> + reg = <0x38300000 0x10000>; >> + interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; >> + interrupt-names = "g1"; >> clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>, >> <&clk IMX8MQ_CLK_VPU_G2_ROOT>, >> <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; >> @@ -1350,9 +1351,33 @@ vpu: video-codec@38300000 { >> <&clk IMX8MQ_VPU_PLL_OUT>, >> <&clk IMX8MQ_SYS1_PLL_800M>, >> <&clk IMX8MQ_VPU_PLL>; >> - assigned-clock-rates = <600000000>, <600000000>, >> + assigned-clock-rates = <600000000>, <300000000>, > I'd like to see this mentioned in the commit message.
Yes I would do that. The value comes from the datasheet.
> >> + <800000000>, <0>; >> + power-domains = <&pgc_vpu>; >> + nxp,imx8mq-vpu-ctrl = <&vpu_ctrl>; >> + }; >> + >> + vpu_g2: video-codec@38310000 { >> + compatible = "nxp,imx8mq-vpu-g2"; >> + reg = <0x38310000 0x10000>; >> + interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>; >> + interrupt-names = "g2"; >> + clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>, >> + <&clk IMX8MQ_CLK_VPU_G2_ROOT>, >> + <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; >> + clock-names = "g1", "g2", "bus"; >> + assigned-clocks = <&clk IMX8MQ_CLK_VPU_G1>, > Can the G1 clock configuration be dropped from the G2 device node and > the G2 clock configuration from the G1 device node? It looks weird that > these devices configure each other's clocks.
No because if only one device node is enabled we need to configure the both clocks anyway.
Benjamin
> > regards > Philipp >
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