Re: [PATCH 2/8] OMAP3:GPIO:Add support for early platform gpio device

Tony Lindgren
2010-04-01T09:12:06Z

* Charulatha V <charu@ti.com> [100331 05:15]:
> This patch adds support for implementing OMAP3 GPIO as an
> early platform device and adds gpio_init specific to OMAP3
>
> This patch adds device structures for each GPIO device in
> OMAP3 architecture. These strutures are not created in a
> separate *_data.c file because these structures would be
> removed once the driver gets adapted to HWMOD way.
>
> Signed-off-by: Charulatha V <charu@ti.com>
> ---
> arch/arm/mach-omap2/gpio3xxx.c | 351 +++++++++++++++++++++++++++++++
> arch/arm/mach-omap2/include/mach/gpio.h | 13 +-
> 2 files changed, 363 insertions(+), 1 deletions(-)
> create mode 100644 arch/arm/mach-omap2/gpio3xxx.c
>
> diff --git a/arch/arm/mach-omap2/gpio3xxx.c b/arch/arm/mach-omap2/gpio3xxx.c
> new file mode 100644
> index 0000000..8f404e7
> --- /dev/null
> +++ b/arch/arm/mach-omap2/gpio3xxx.c
> @@ -0,0 +1,351 @@
> +/*
> + * gpio3xxx.c - OMAP3-specific gpio code
> + *
> + * Copyright (C) 2010 Texas Instruments, Inc.
> + *
> + * Author:
> + * Charulatha V <charu@ti.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <plat/gpio.h>
> +
> +/*
> + * OMAP3 GPIO reg offsets
> + */
> +static struct gpio_reg_offset omap3_gpio_reg = {
> + .data_in = OMAP24XX_GPIO_DATAIN,
> + .data_out = OMAP24XX_GPIO_DATAOUT,
> + .data_out_set = OMAP24XX_GPIO_SETDATAOUT,
> + .data_out_clear = OMAP24XX_GPIO_CLEARDATAOUT,
> + .dir_ctrl = OMAP24XX_GPIO_OE,
> + .irq_status0 = OMAP24XX_GPIO_IRQSTATUS1,
> + .irq_status1 = OMAP24XX_GPIO_IRQSTATUS2,
> + .irq_mask = OMAP24XX_GPIO_IRQENABLE1,
> + .irq_set = OMAP24XX_GPIO_SETIRQENABLE1,
> + .irq_clear = OMAP24XX_GPIO_CLEARIRQENABLE1,
> + .irq_mask_bits = 0xffffffff,
> + .irq_inv = 0,
> + .wkup_enable = OMAP24XX_GPIO_WAKE_EN,
> + .wkup_clear = OMAP24XX_GPIO_CLEARWKUENA,
> + .wkup_set = OMAP24XX_GPIO_SETWKUENA,
> + .debounce_ena = OMAP24XX_GPIO_DEBOUNCE_EN,
> + .debounce_val = OMAP24XX_GPIO_DEBOUNCE_VAL,
> + .ctrl = OMAP24XX_GPIO_CTRL,
> + .syscfg = OMAP24XX_GPIO_SYSCONFIG,
> + .leveldetect0 = OMAP24XX_GPIO_LEVELDETECT0,
> + .leveldetect1 = OMAP24XX_GPIO_LEVELDETECT1,
> + .rise_detect = OMAP24XX_GPIO_RISINGDETECT,
> + .fall_detect = OMAP24XX_GPIO_FALLINGDETECT,
> + .rev_reg = OMAP24XX_GPIO_REVISION,
> +};

Can we use just a omap specific shift here? Or is the register
ordering different too?

Tony