From 3b7474ec0d7150044f91e3af460067f79d466522 Mon Sep 17 00:00:00 2001 From: Dave Gerlach Date: Thu, 7 Jan 2016 11:13:34 -0800 Subject: [PATCH] Input: ti_am335x_tsc - fix HWPEN interrupt handling 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 Signed-off-by: Dmitry Torokhov --- 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 191a1b87895f..a21a07c3ab6d 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; } -- 2.39.2