RE: [PATCH 11/15] OMAP: GPIO: Remove hardcoded offsets in ctxt save/restore

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> -----Original Message-----
> From: linux-omap-owner@xxxxxxxxxxxxxxx 
> [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of 
> DebBarma, Tarun Kanti
> Sent: Tuesday, May 24, 2011 7:55 PM
> To: linux-omap@xxxxxxxxxxxxxxx
> Cc: Hilman, Kevin; Shilimkar, Santosh; tony@xxxxxxxxxxx; 
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; DebBarma, Tarun Kanti; 
> Varadarajan, Charulatha
> Subject: [PATCH 11/15] OMAP: GPIO: Remove hardcoded offsets 
> in ctxt save/restore
> 
> It is not required to use hard-coded offsets any more in context
> save and restore functions and instead use the generic offsets
> which have been correctly initialized during device registration.
> 
> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@xxxxxx>
> Signed-off-by: Charulatha V <charu@xxxxxx>
> ---
>  arch/arm/mach-omap2/gpio.c             |    2 +
>  arch/arm/plat-omap/include/plat/gpio.h |    1 +
>  drivers/gpio/gpio_omap.c               |  123 
> ++++++++++----------------------
>  3 files changed, 40 insertions(+), 86 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c
> index 0f8782f..5c888dd 100644

[snip]...[snip]
> diff --git a/drivers/gpio/gpio_omap.c b/drivers/gpio/gpio_omap.c
> index 28390a9..05c2857 100644
> --- a/drivers/gpio/gpio_omap.c
> +++ b/drivers/gpio/gpio_omap.c
> @@ -1395,96 +1395,47 @@ restore_gpio_ctx:
>  
>  void omap_gpio_save_context(struct gpio_bank *bank)
>  {

[sp] The [PATCH 06/15] OMAP4: GPIO: Save/restore context
     seems to be doing exactly opposite:
     It introduces the checks for
[quote]
 +		if (bank->method == METHOD_GPIO_24XX) {
...
...
 +		} else if (bank->method == METHOD_GPIO_44XX) {
[/quote]

and this patch removes the same checks.

Am I missing something?

~sanjeev


> -	if (bank->method == METHOD_GPIO_24XX) {
> -		bank->context.irqenable1 = __raw_readl(
> -					bank->base + 
> OMAP24XX_GPIO_IRQENABLE1);
> -		bank->context.irqenable2 = __raw_readl(
> -					bank->base + 
> OMAP24XX_GPIO_IRQENABLE2);
> -		bank->context.wake_en = __raw_readl(
> -					bank->base + 
> OMAP24XX_GPIO_WAKE_EN);
> -		bank->context.ctrl = __raw_readl(
> -					bank->base + 
> OMAP24XX_GPIO_CTRL);
> -		bank->context.oe = __raw_readl(
> -					bank->base + OMAP24XX_GPIO_OE);
> -		bank->context.leveldetect0 = __raw_readl(bank->base +
> -					OMAP24XX_GPIO_LEVELDETECT0);
> -		bank->context.leveldetect1 = __raw_readl(bank->base +
> -					OMAP24XX_GPIO_LEVELDETECT1);
> -		bank->context.risingdetect = __raw_readl(bank->base +
> -					OMAP24XX_GPIO_RISINGDETECT);
> -		bank->context.fallingdetect = __raw_readl(bank->base +
> -					OMAP24XX_GPIO_FALLINGDETECT);
> -		bank->context.dataout = __raw_readl(
> -					bank->base + 
> OMAP24XX_GPIO_DATAOUT);
> -	} else if (bank->method == METHOD_GPIO_44XX) {
> -		bank->context.irqenable1 = __raw_readl(
> -					bank->base + 
> OMAP4_GPIO_IRQSTATUSSET0);
> -		bank->context.irqenable2 = __raw_readl(
> -					bank->base + 
> OMAP4_GPIO_IRQSTATUSSET1);
> -		bank->context.wake_en = __raw_readl(
> -					bank->base + 
> OMAP4_GPIO_IRQWAKEN0);
> -		bank->context.ctrl = __raw_readl(
> -					bank->base + OMAP4_GPIO_CTRL);
> -		bank->context.oe = __raw_readl(
> -					bank->base + OMAP24XX_GPIO_OE);
> -		bank->context.leveldetect0 = __raw_readl(bank->base +
> -					OMAP4_GPIO_LEVELDETECT0);
> -		bank->context.leveldetect1 = __raw_readl(bank->base +
> -					OMAP4_GPIO_LEVELDETECT1);
> -		bank->context.risingdetect = __raw_readl(bank->base +
> -					OMAP4_GPIO_RISINGDETECT);
> -		bank->context.fallingdetect = __raw_readl(bank->base +
> -					OMAP4_GPIO_FALLINGDETECT);
> -		bank->context.dataout = __raw_readl(
> -					bank->base + 
> OMAP4_GPIO_DATAOUT);
> -	}
> +	bank->context.irqenable1 =
> +			__raw_readl(bank->base + bank->regs->irqenable);
> +	bank->context.irqenable2 =
> +			__raw_readl(bank->base + 
> bank->regs->irqenable2);
> +	bank->context.wake_en =
> +			__raw_readl(bank->base + 
> bank->regs->wkupstatus);
> +	bank->context.ctrl = __raw_readl(bank->base + bank->regs->ctrl);
> +	bank->context.oe = __raw_readl(bank->base + 
> bank->regs->direction);
> +	bank->context.leveldetect0 =
> +			__raw_readl(bank->base + 
> bank->regs->leveldetect0);
> +	bank->context.leveldetect1 =
> +			__raw_readl(bank->base + 
> bank->regs->leveldetect1);
> +	bank->context.risingdetect =
> +			__raw_readl(bank->base + 
> bank->regs->risingdetect);
> +	bank->context.fallingdetect =
> +			__raw_readl(bank->base + 
> bank->regs->fallingdetect);
> +	bank->context.dataout = __raw_readl(bank->base + 
> bank->regs->dataout);
>  }
>  
>  void omap_gpio_restore_context(struct gpio_bank *bank)
>  {
> -	if (bank->method == METHOD_GPIO_24XX) {
> -		__raw_writel(bank->context.irqenable1, bank->base +
> -						
> OMAP24XX_GPIO_IRQENABLE1);
> -		__raw_writel(bank->context.irqenable2, bank->base +
> -						
> OMAP24XX_GPIO_IRQENABLE2);
> -		__raw_writel(bank->context.wake_en, bank->base +
> -						OMAP24XX_GPIO_WAKE_EN);
> -		__raw_writel(bank->context.ctrl, bank->base +
> -						OMAP24XX_GPIO_CTRL);
> -		__raw_writel(bank->context.oe, bank->base +
> -						OMAP24XX_GPIO_OE);
> -		__raw_writel(bank->context.leveldetect0, bank->base +
> -						
> OMAP24XX_GPIO_LEVELDETECT0);
> -		__raw_writel(bank->context.leveldetect1, bank->base +
> -						
> OMAP24XX_GPIO_LEVELDETECT1);
> -		__raw_writel(bank->context.risingdetect, bank->base +
> -						
> OMAP24XX_GPIO_RISINGDETECT);
> -		__raw_writel(bank->context.fallingdetect, bank->base +
> -						
> OMAP24XX_GPIO_FALLINGDETECT);
> -		__raw_writel(bank->context.dataout, bank->base +
> -						OMAP24XX_GPIO_DATAOUT);
> -	} else if (bank->method == METHOD_GPIO_44XX) {
> -		__raw_writel(bank->context.irqenable1, bank->base +
> -						
> OMAP4_GPIO_IRQSTATUSSET0);
> -		__raw_writel(bank->context.irqenable2, bank->base +
> -						
> OMAP4_GPIO_IRQSTATUSSET1);
> -		__raw_writel(bank->context.wake_en, bank->base +
> -						OMAP4_GPIO_IRQWAKEN0);
> -		__raw_writel(bank->context.ctrl, bank->base +
> -						OMAP4_GPIO_CTRL);
> -		__raw_writel(bank->context.oe, bank->base +
> -						OMAP24XX_GPIO_OE);
> -		__raw_writel(bank->context.leveldetect0, bank->base +
> -						
> OMAP4_GPIO_LEVELDETECT0);
> -		__raw_writel(bank->context.leveldetect1, bank->base +
> -						
> OMAP4_GPIO_LEVELDETECT1);
> -		__raw_writel(bank->context.risingdetect, bank->base +
> -						
> OMAP4_GPIO_RISINGDETECT);
> -		__raw_writel(bank->context.fallingdetect, bank->base +
> -						
> OMAP4_GPIO_FALLINGDETECT);
> -		__raw_writel(bank->context.dataout, bank->base +
> -						OMAP4_GPIO_DATAOUT);
> -	}
> +	__raw_writel(bank->context.irqenable1,
> +				bank->base + bank->regs->irqenable);
> +	__raw_writel(bank->context.irqenable2,
> +				bank->base + bank->regs->irqenable2);
> +	__raw_writel(bank->context.wake_en,
> +				bank->base + bank->regs->wkupstatus);
> +	__raw_writel(bank->context.ctrl,
> +				bank->base + bank->regs->ctrl);
> +	__raw_writel(bank->context.oe,
> +				bank->base + bank->regs->direction);
> +	__raw_writel(bank->context.leveldetect0,
> +				bank->base + bank->regs->leveldetect0);
> +	__raw_writel(bank->context.leveldetect1,
> +				bank->base + bank->regs->leveldetect1);
> +	__raw_writel(bank->context.risingdetect,
> +				bank->base + bank->regs->risingdetect);
> +	__raw_writel(bank->context.fallingdetect,
> +				bank->base + bank->regs->fallingdetect);
> +	__raw_writel(bank->context.dataout,
> +				bank->base + bank->regs->dataout);
>  }
>  
>  #endif
> -- 
> 1.6.0.4
> 
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