On Fri, Jan 23, 2026 at 09:30:29AM +0100, Maud Spierings via B4 Relay wrote:
> From: Maud Spierings <maudspierings@gocontroll.com>
>
> Currently to configure each IOMUXC_SW_PAD_CTL_PAD the raw value of this
> register is written in the dts, these values are not obvious. Add defines
> which describe the fields of this register which can be or-ed together to
> produce readable settings.
>
> Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
> ---
Reviewed-by: Frank Li <Frank.Li@nxp.com>
> arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h | 33 ++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h b/arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h
> index b1f11098d248..31557b7b9ccc 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h
> @@ -6,6 +6,39 @@
> #ifndef __DTS_IMX8MM_PINFUNC_H
> #define __DTS_IMX8MM_PINFUNC_H
>
> +/* Drive Strength */
> +#define MX8MM_DSE_X1 0x0
> +#define MX8MM_DSE_X2 0x4
> +#define MX8MM_DSE_X4 0x2
> +#define MX8MM_DSE_X6 0x6
> +
> +/* Slew Rate */
> +#define MX8MM_FSEL_FAST 0x10
> +#define MX8MM_FSEL_SLOW 0x0
> +
> +/* Open Drain */
> +#define MX8MM_ODE_ENABLE 0x20
> +#define MX8MM_ODE_DISABLE 0x0
> +
> +#define MX8MM_PULL_DOWN 0x0
> +#define MX8MM_PULL_UP 0x40
> +
> +/* Hysteresis */
> +#define MX8MM_HYS_CMOS 0x0
> +#define MX8MM_HYS_SCHMITT 0x80
> +
> +#define MX8MM_PULL_ENABLE 0x100
> +#define MX8MM_PULL_DISABLE 0x0
> +
> +/* SION force input mode */
> +#define MX8MM_SION 0x40000000
> +
> +/* long defaults */
> +#define MX8MM_USDHC_DATA_DEFAULT (MX8MM_FSEL_FAST | MX8MM_PULL_UP | \
> + MX8MM_HYS_SCHMITT | MX8MM_PULL_ENABLE)
> +#define MX8MM_I2C_DEFAULT (MX8MM_DSE_X6 | MX8MM_PULL_UP | MX8MM_HYS_SCHMITT | \
> + MX8MM_PULL_ENABLE | MX8MM_SION)
> +
> /*
> * The pin function ID is a tuple of
> * <mux_reg conf_reg input_reg mux_mode input_val>
>
> --
> 2.52.0
>
>