| Message ID | 1442334489-3645-1-git-send-email-d-gerlach@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Sep 15, 2015 at 11:28:09AM -0500, Dave Gerlach wrote: > Remove write to REG_IRQCLR and REG_IRQWAKEUP in interrupt handler for > IRQENB_HW_PEN as the resume handler should and does clear REG_IRQWAKEUP. > IRQENB_HW_PEN bit is set in irqclr so that all interrupts get cleared > later so let IRQENB_HW_PEN be cleared by that. > > Without this patch wakeup events from TSC_ADC do not work because pending > interrupts in TSC_ADC were causing HW_PEN interrupt, needed for wake from > suspend modes, to get disabled immediately by IRQ handler after being > enabled and preventing wake from happening. > > Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Applied, thank you. > --- > drivers/input/touchscreen/ti_am335x_tsc.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c > index 191a1b8..a21a07c 100644 > --- a/drivers/input/touchscreen/ti_am335x_tsc.c > +++ b/drivers/input/touchscreen/ti_am335x_tsc.c > @@ -273,8 +273,6 @@ static irqreturn_t titsc_irq(int irq, void *dev) > status = titsc_readl(ts_dev, REG_RAWIRQSTATUS); > if (status & IRQENB_HW_PEN) { > ts_dev->pen_down = true; > - titsc_writel(ts_dev, REG_IRQWAKEUP, 0x00); > - titsc_writel(ts_dev, REG_IRQCLR, IRQENB_HW_PEN); > irqclr |= IRQENB_HW_PEN; > } > > -- > 2.4.6 >
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index 191a1b8..a21a07c 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -273,8 +273,6 @@ static irqreturn_t titsc_irq(int irq, void *dev) status = titsc_readl(ts_dev, REG_RAWIRQSTATUS); if (status & IRQENB_HW_PEN) { ts_dev->pen_down = true; - titsc_writel(ts_dev, REG_IRQWAKEUP, 0x00); - titsc_writel(ts_dev, REG_IRQCLR, IRQENB_HW_PEN); irqclr |= IRQENB_HW_PEN; }
Remove write to REG_IRQCLR and REG_IRQWAKEUP in interrupt handler for IRQENB_HW_PEN as the resume handler should and does clear REG_IRQWAKEUP. IRQENB_HW_PEN bit is set in irqclr so that all interrupts get cleared later so let IRQENB_HW_PEN be cleared by that. Without this patch wakeup events from TSC_ADC do not work because pending interrupts in TSC_ADC were causing HW_PEN interrupt, needed for wake from suspend modes, to get disabled immediately by IRQ handler after being enabled and preventing wake from happening. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> --- drivers/input/touchscreen/ti_am335x_tsc.c | 2 -- 1 file changed, 2 deletions(-)