diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2020-10-12 14:44:00 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2020-10-30 11:34:02 +0100 |
| commit | b781820927c5fb0dacb2ef986b33e9b3cfc41930 (patch) | |
| tree | d5e91c958c743b2b6b90a51433adee59381a17ed /arch | |
| parent | arm64: dts: imx8mm-beacon-som: Add QSPI NOR flash support (diff) | |
| download | linux-b781820927c5fb0dacb2ef986b33e9b3cfc41930.tar.xz linux-b781820927c5fb0dacb2ef986b33e9b3cfc41930.zip | |
arm64: dts: imx8mm: Correct WDOG_B pin configuration
Different revision of i.MX8MM EVK boards may have different external
pull up registor design, some are enabled while some are NOT, to make
sure the WDOG_B pin works properly, better to enable internal pull up
resistor. Since enabling internal pull up resistor is NOT harmful and
having benefit of flexibility on different board design, just enable
it for all i.MX8MM boards; And schmitt input is NOT necessary for this
WDOG_B output pin, so remove it; Open drain outputs provide more
flexibility to a designer as they can be pulled-up to any voltage found
in the system, so enable it as well.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi | 2 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 2 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi index 09ad2d71b8b3..c74e006ad0e8 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi @@ -437,7 +437,7 @@ pinctrl_wdog: wdoggrp { fsl,pins = < - MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0xc6 + MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166 >; }; diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi index f305a530ff6f..469d5703250b 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi @@ -468,7 +468,7 @@ pinctrl_wdog: wdoggrp { fsl,pins = < - MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0xc6 + MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166 >; }; }; diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi index 4107fe914d08..38e879d32560 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi @@ -555,7 +555,7 @@ pinctrl_wdog: wdoggrp { fsl,pins = < - MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0xc6 + MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166 >; }; }; |