From: Ahmad Fatoum <a.fatoum@pengutronix.de> To: Marek Vasut <marex@denx.de>, linux-arm-kernel@lists.infradead.org Cc: Alexander Stein <alexander.stein@ew.tq-group.com>, Peng Fan <peng.fan@nxp.com>, Conor Dooley <conor+dt@kernel.org>, Fabio Estevam <festevam@gmail.com>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Laurent Pinchart <laurent.pinchart@ideasonboard.com>, Paul Elder <paul.elder@ideasonboard.com>, Pengutronix Kernel Team <kernel@pengutronix.de>, Rob Herring <robh@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>, Shawn Guo <shawnguo@kernel.org>, devicetree@vger.kernel.org, imx@lists.linux.dev Subject: Re: [PATCH v3] arm64: dts: imx8mp: Align both CSI2 pixel clock Date: Wed, 17 Apr 2024 13:47:34 +0200 [thread overview] Message-ID: <4fdb7940-02ce-45bd-ab2d-f43c02b16b2d@pengutronix.de> (raw) In-Reply-To: <20240417114231.7044-1-marex@denx.de> On 17.04.24 13:42, Marek Vasut wrote: > Configure both CSI2 clock-frequency and assigned-clock-rates > the same way. There does not seem to be any reason for keeping > the two CSI2 pixel clock set to different frequencies. > > This also reduces first CSI2 clock from overdrive mode > frequency which is 500 MHz down below the regular mode > frequency of 400 MHz. > > Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com> > Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Thanks, Ahmad > Signed-off-by: Marek Vasut <marex@denx.de> > --- > Cc: Ahmad Fatoum <a.fatoum@pengutronix.de> > Cc: Conor Dooley <conor+dt@kernel.org> > Cc: Fabio Estevam <festevam@gmail.com> > Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > Cc: Paul Elder <paul.elder@ideasonboard.com> > Cc: Pengutronix Kernel Team <kernel@pengutronix.de> > Cc: Rob Herring <robh@kernel.org> > Cc: Sascha Hauer <s.hauer@pengutronix.de> > Cc: Shawn Guo <shawnguo@kernel.org> > Cc: devicetree@vger.kernel.org > Cc: imx@lists.linux.dev > Cc: linux-arm-kernel@lists.infradead.org > --- > V2: Align both clock to 266 MHz and update commit message > V3: - Fix up clock-frequency to 266 MHz as well, update commit message > - Add RB from Peng and Alexander, but maybe those need to be updated? > --- > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi > index 1bb96e96639f2..b92abb5a5c536 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi > @@ -1657,7 +1657,7 @@ mipi_csi_0: csi@32e40000 { > compatible = "fsl,imx8mp-mipi-csi2", "fsl,imx8mm-mipi-csi2"; > reg = <0x32e40000 0x10000>; > interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>; > - clock-frequency = <500000000>; > + clock-frequency = <266000000>; > clocks = <&clk IMX8MP_CLK_MEDIA_APB_ROOT>, > <&clk IMX8MP_CLK_MEDIA_CAM1_PIX_ROOT>, > <&clk IMX8MP_CLK_MEDIA_MIPI_PHY1_REF_ROOT>, > @@ -1667,7 +1667,7 @@ mipi_csi_0: csi@32e40000 { > <&clk IMX8MP_CLK_MEDIA_MIPI_PHY1_REF>; > assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_1000M>, > <&clk IMX8MP_CLK_24M>; > - assigned-clock-rates = <500000000>; > + assigned-clock-rates = <266000000>; > power-domains = <&media_blk_ctrl IMX8MP_MEDIABLK_PD_MIPI_CSI2_1>; > status = "disabled"; > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
WARNING: multiple messages have this Message-ID (diff)
From: Ahmad Fatoum <a.fatoum@pengutronix.de> To: Marek Vasut <marex@denx.de>, linux-arm-kernel@lists.infradead.org Cc: Alexander Stein <alexander.stein@ew.tq-group.com>, Peng Fan <peng.fan@nxp.com>, Conor Dooley <conor+dt@kernel.org>, Fabio Estevam <festevam@gmail.com>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Laurent Pinchart <laurent.pinchart@ideasonboard.com>, Paul Elder <paul.elder@ideasonboard.com>, Pengutronix Kernel Team <kernel@pengutronix.de>, Rob Herring <robh@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>, Shawn Guo <shawnguo@kernel.org>, devicetree@vger.kernel.org, imx@lists.linux.dev Subject: Re: [PATCH v3] arm64: dts: imx8mp: Align both CSI2 pixel clock Date: Wed, 17 Apr 2024 13:47:34 +0200 [thread overview] Message-ID: <4fdb7940-02ce-45bd-ab2d-f43c02b16b2d@pengutronix.de> (raw) In-Reply-To: <20240417114231.7044-1-marex@denx.de> On 17.04.24 13:42, Marek Vasut wrote: > Configure both CSI2 clock-frequency and assigned-clock-rates > the same way. There does not seem to be any reason for keeping > the two CSI2 pixel clock set to different frequencies. > > This also reduces first CSI2 clock from overdrive mode > frequency which is 500 MHz down below the regular mode > frequency of 400 MHz. > > Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com> > Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Thanks, Ahmad > Signed-off-by: Marek Vasut <marex@denx.de> > --- > Cc: Ahmad Fatoum <a.fatoum@pengutronix.de> > Cc: Conor Dooley <conor+dt@kernel.org> > Cc: Fabio Estevam <festevam@gmail.com> > Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > Cc: Paul Elder <paul.elder@ideasonboard.com> > Cc: Pengutronix Kernel Team <kernel@pengutronix.de> > Cc: Rob Herring <robh@kernel.org> > Cc: Sascha Hauer <s.hauer@pengutronix.de> > Cc: Shawn Guo <shawnguo@kernel.org> > Cc: devicetree@vger.kernel.org > Cc: imx@lists.linux.dev > Cc: linux-arm-kernel@lists.infradead.org > --- > V2: Align both clock to 266 MHz and update commit message > V3: - Fix up clock-frequency to 266 MHz as well, update commit message > - Add RB from Peng and Alexander, but maybe those need to be updated? > --- > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi > index 1bb96e96639f2..b92abb5a5c536 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi > @@ -1657,7 +1657,7 @@ mipi_csi_0: csi@32e40000 { > compatible = "fsl,imx8mp-mipi-csi2", "fsl,imx8mm-mipi-csi2"; > reg = <0x32e40000 0x10000>; > interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>; > - clock-frequency = <500000000>; > + clock-frequency = <266000000>; > clocks = <&clk IMX8MP_CLK_MEDIA_APB_ROOT>, > <&clk IMX8MP_CLK_MEDIA_CAM1_PIX_ROOT>, > <&clk IMX8MP_CLK_MEDIA_MIPI_PHY1_REF_ROOT>, > @@ -1667,7 +1667,7 @@ mipi_csi_0: csi@32e40000 { > <&clk IMX8MP_CLK_MEDIA_MIPI_PHY1_REF>; > assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_1000M>, > <&clk IMX8MP_CLK_24M>; > - assigned-clock-rates = <500000000>; > + assigned-clock-rates = <266000000>; > power-domains = <&media_blk_ctrl IMX8MP_MEDIABLK_PD_MIPI_CSI2_1>; > status = "disabled"; > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-04-17 11:47 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-17 11:42 [PATCH v3] arm64: dts: imx8mp: Align both CSI2 pixel clock Marek Vasut 2024-04-17 11:42 ` Marek Vasut 2024-04-17 11:47 ` Ahmad Fatoum [this message] 2024-04-17 11:47 ` Ahmad Fatoum 2024-04-25 6:24 ` Shawn Guo 2024-04-25 6:24 ` Shawn Guo
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