[PATCH v6 2/8] arm64: dts: imx8mp: Add pinctrl config definitions

[Shawn Guo]

On Thu, Apr 17, 2025 at 12:14:03PM +0200, Maud Spierings via B4 Relay wrote:
> From: Maud Spierings <maudspierings at 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.
> 
> Reviewed-by: Frank Li <Frank.Li at nxp.com>
> Acked-by: Rob Herring (Arm) <robh at kernel.org>
> Signed-off-by: Maud Spierings <maudspierings at gocontroll.com>
> ---
> This patch has already been sent in a different group of patches: [1]
> It was requested there to submit it along with a user, this series also
> includes some users for it.
> 
> [1]: https://lore.kernel.org/all/20250218-pinctrl_defines-v2-2-c554cad0e1d2@gocontroll.com/
> ---
>  arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h | 33 ++++++++++++++++++++++++++
>  1 file changed, 33 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h b/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
> index 0fef066471ba607be02d0ab15da5a048a8a213a7..19a23d148246f4fb990050a9d06d20b6e769f254 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
> @@ -6,6 +6,39 @@
>  #ifndef __DTS_IMX8MP_PINFUNC_H
>  #define __DTS_IMX8MP_PINFUNC_H
>  
> +/* Drive Strength */
> +#define MX8MP_DSE_X1 0x0
> +#define MX8MP_DSE_X2 0x4
> +#define MX8MP_DSE_X4 0x2
> +#define MX8MP_DSE_X6 0x6
> +
> +/* Slew Rate */
> +#define MX8MP_FSEL_FAST 0x10
> +#define MX8MP_FSEL_SLOW 0x0
> +
> +/* Open Drain */
> +#define MX8MP_ODE_ENABLE 0x20
> +#define MX8MP_ODE_DISABLE 0x0
> +
> +#define MX8MP_PULL_DOWN 0x0
> +#define MX8MP_PULL_UP 0x40
> +
> +/* Hysteresis */
> +#define MX8MP_HYS_CMOS 0x0
> +#define MX8MP_HYS_SCHMITT 0x80
> +
> +#define MX8MP_PULL_ENABLE 0x100
> +#define MX8MP_PULL_DISABLE 0x0
> +
> +/* SION force input mode */
> +#define MX8MP_SION 0x40000000

Can we have all these indents aligned on the same column using tabs?

> +
> +/* long defaults */
> +#define MX8MP_USDHC_DATA_DEFAULT (MX8MP_FSEL_FAST | MX8MP_PULL_UP | \
> +								  MX8MP_HYS_SCHMITT | MX8MP_PULL_ENABLE)

Can we indent like this?

#define MX8MP_USDHC_DATA_DEFAULT (MX8MP_FSEL_FAST | MX8MP_PULL_UP | \
				  MX8MP_HYS_SCHMITT | MX8MP_PULL_ENABLE)

Shawn

> +#define MX8MP_I2C_DEFAULT (MX8MP_DSE_X6 | MX8MP_PULL_UP | MX8MP_HYS_SCHMITT | \
> +						   MX8MP_PULL_ENABLE | MX8MP_SION)
> +
>  /*
>   * The pin function ID is a tuple of
>   * <mux_reg conf_reg input_reg mux_mode input_val>
> 
> -- 
> 2.49.0
> 
>