Tarun Kanti DebBarma <tarun.kanti@xxxxxx> writes: > From: Charulatha V <charu@xxxxxx> > > In gpio_irq_handler, isr register is always accessed as 32 bit register and only > for OMAP15xx the first 16 MSBs are masked. Correct this by using the appropriate > readl/readw registers as per the bank width. > > Signed-off-by: Charulatha V <charu@xxxxxx> > --- > drivers/gpio/gpio-omap.c | 8 +++++--- > 1 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c > index c6987f2..01b568f 100644 > --- a/drivers/gpio/gpio-omap.c > +++ b/drivers/gpio/gpio-omap.c > @@ -590,10 +590,12 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) > u32 enabled; > > 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->width == 32) > + isr = __raw_readl(isr_reg) & enabled; > + else if (bank->width == 16) > + isr = (__raw_readw(isr_reg) & enabled) & 0x0000ffff; > + isr_saved = isr; Come to think of it, 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. Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
