diff mbox

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

Message ID 1312455893-14922-16-git-send-email-tarun.kanti@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Tarun Kanti DebBarma Aug. 4, 2011, 11:04 a.m. UTC
From: Charulatha V <charu@ti.com>

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 <charu@ti.com>
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
---
 drivers/gpio/gpio-omap.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

Comments

Santosh Shilimkar Aug. 23, 2011, 2:25 p.m. UTC | #1
On Thursday 04 August 2011 04:34 PM, Tarun Kanti DebBarma wrote:
> From: Charulatha V<charu@ti.com>
>
> 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<charu@ti.com>
> Signed-off-by: Tarun Kanti DebBarma<tarun.kanti@ti.com>
> ---

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;

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diff mbox

Patch

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;