Subject: [PATCH v5 15/22] gpio/omap: use readl in irq_handler for all access

From: [email-masked] (Santosh)
Date: Tue, 23 Aug 2011 19:55:44 +0530

On Thursday 04 August 2011 04:34 PM, Tarun Kanti DebBarma wrote:
> From: Charulatha V<[email-masked]>
>
> Even when bank->width is 16, all the OMAP1 registers are 4-byte aligned, so just
> use a 4-byte read.  The 'enabled' mask is already taking care to mask for bank width.
>
> Signed-off-by: Charulatha V<[email-masked]>
> Signed-off-by: Tarun Kanti DebBarma<[email-masked]>
> ---

Patch $SUBJECT and the change don't match.

May be you want to say remove un-necessary bit masking since
the register are 4 byte aligned and readl would work as is.

>   drivers/gpio/gpio-omap.c |    2 --
>   1 files changed, 0 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
> index 3d18cdf..ba20e42 100644
> --- a/drivers/gpio/gpio-omap.c
> +++ b/drivers/gpio/gpio-omap.c
> @@ -572,8 +572,6 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
>   		enabled = _get_gpio_irqbank_mask(bank);
>   		isr_saved = isr = __raw_readl(isr_reg)&  enabled;
>
> -		if (cpu_is_omap15xx()&&  (bank->method == METHOD_MPUIO))
> -			isr&= 0x0000ffff;
>
>   		if (bank->level_mask)
>   			level_mask = bank->level_mask&  enabled;