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SubjectRe: [RFC PATCH 1/3] pinctrl: imx: add pinmux imx core driver
On Sun, Dec 04, 2011 at 07:49:42PM +0800, Dong Aisheng wrote:
> ---
> This patch series shows the basic idea of driver design. There're still
> some TODOes like adding more pinmux functions and gpio support.
> The patch is here for request for comments on the driver design
> and other might exist issues.
>
> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Sascha Hauer <s.hauer@pengutronix.de>
> Cc: Shawn Guo <shanw.guo@freescale.com>
> ---
> drivers/pinctrl/Kconfig | 6 +
> drivers/pinctrl/Makefile | 2 +
> drivers/pinctrl/pinmux-imx-core.c | 284 +++++++++++++++++++++++++++++++++++++
> drivers/pinctrl/pinmux-imx-core.h | 83 +++++++++++
> 4 files changed, 375 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
> index ef56644..214d072 100644
> --- a/drivers/pinctrl/Kconfig
> +++ b/drivers/pinctrl/Kconfig
> @@ -40,4 +40,10 @@ config PINMUX_U300
> help
> Say Y here to enable the U300 pinmux driver
>
> +config PINMUX_IMX
> + bool "IMX pinmux driver"
> + depends on ARCH_MXC
> + select PINMUX
> + help
> + Say Y here to enable the IMX pinmux driver
> endif
> diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
> index bdc548a..764657b 100644
> --- a/drivers/pinctrl/Makefile
> +++ b/drivers/pinctrl/Makefile
> @@ -4,5 +4,7 @@ ccflags-$(CONFIG_DEBUG_PINMUX) += -DDEBUG
>
> obj-$(CONFIG_PINCTRL) += core.o
> obj-$(CONFIG_PINMUX) += pinmux.o
> +obj-$(CONFIG_PINMUX_IMX) += pinmux-imx-core.o \
> + pinmux-imx53.o pinmux-imx6q.o

You do not have pinmux-imx53.c and pinmux-imx6q.c in this patch yet.

> obj-$(CONFIG_PINMUX_SIRF) += pinmux-sirf.o
> obj-$(CONFIG_PINMUX_U300) += pinmux-u300.o
> diff --git a/drivers/pinctrl/pinmux-imx-core.c b/drivers/pinctrl/pinmux-imx-core.c
> new file mode 100644
> index 0000000..1e60932
> --- /dev/null
> +++ b/drivers/pinctrl/pinmux-imx-core.c
> @@ -0,0 +1,284 @@
> +/*
> + * Core driver for the imx pin controller
> + *
> + * Copyright (C) 2011 Freescale Semiconductor, Inc.
> + * Copyright (C) 2011 Linaro Ltd.
> + *
> + * Author: Dong Aisheng <dong.aisheng@linaro.org>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + */
> +
> +#include <linux/init.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/io.h>
> +#include <linux/err.h>
> +#include <linux/pinctrl/pinctrl.h>
> +#include <linux/pinctrl/pinmux.h>
> +
> +#include "pinmux-imx-core.h"
> +
> +#define DRIVER_NAME "pinmux-imx"
> +
> +/**
> + * @dev: a pointer back to containing device
> + * @virtbase: the offset to the controller in virtual memory
> + */
> +struct imx_pmx {
> + struct device *dev;
> + struct pinctrl_dev *pctl;
> + void __iomem *virtbase;
> + struct imx_pinctrl_info *info;
> +};
> +
> +#define IMX_PINCTRL_REG_SIZE 4
> +#define IMX_PINCTRL_MAX_FUNC 7
> +
> +extern struct imx_pinctrl_info mx53_pinctrl_info;
> +extern struct imx_pinctrl_info mx6q_pinctrl_info;
> +

You do not have mx53_pinctrl_info and mx6q_pinctrl_info in this patch
yet.

Regards,
Shawn



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