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| author | Marek Vasut <marex@denx.de> | 2024-06-15 10:00:43 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2024-06-15 10:00:43 +0200 |
| commit | c03984d43a9dd9282da54ccf275419f666029452 (patch) | |
| tree | 0710ebe92024c65a29db873a8f2a4699f4962c36 /arch | |
| parent | arm64: dts: freescale: imx8mm-verdin: Fix GPU speed (diff) | |
| download | linux-c03984d43a9dd9282da54ccf275419f666029452.tar.xz linux-c03984d43a9dd9282da54ccf275419f666029452.zip | |
arm64: dts: imx8mp: Fix TC9595 input clock on DH i.MX8M Plus DHCOM SoM
The IMX8MP_CLK_CLKOUT2 supplies the TC9595 bridge with 13 MHz reference
clock. The IMX8MP_CLK_CLKOUT2 is supplied from IMX8MP_AUDIO_PLL2_OUT.
The IMX8MP_CLK_CLKOUT2 operates only as a power-of-two divider, and the
current 156 MHz is not power-of-two divisible to achieve 13 MHz.
To achieve 13 MHz output from IMX8MP_CLK_CLKOUT2, set IMX8MP_AUDIO_PLL2_OUT
to 208 MHz, because 208 MHz / 16 = 13 MHz.
Fixes: 20d0b83e712b ("arm64: dts: imx8mp: Add TC9595 bridge on DH electronics i.MX8M Plus DHCOM")
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi index 43f1d45ccc96..f5115f9e8c47 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi @@ -254,7 +254,7 @@ <&clk IMX8MP_CLK_CLKOUT2>, <&clk IMX8MP_AUDIO_PLL2_OUT>; assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL2_OUT>; - assigned-clock-rates = <13000000>, <13000000>, <156000000>; + assigned-clock-rates = <13000000>, <13000000>, <208000000>; reset-gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>; status = "disabled"; |