3.18-stable review patch. If anyone has any objections, please let me know.
------------------ From: Bjorn Andersson <[email protected]> commit a6566710adaa4a7dd5e0d99820ff9c9c30ee5951 upstream. Clearing the status bit on irq_unmask will discard any pending interrupt that did arrive after the irq_ack, i.e. while the IRQ handler function was executing. Fixes: f365be092572 ("pinctrl: Add Qualcomm TLMM driver") Cc: Stephen Boyd <[email protected]> Reported-by: Timur Tabi <[email protected]> Signed-off-by: Bjorn Andersson <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/pinctrl/qcom/pinctrl-msm.c | 4 ---- 1 file changed, 4 deletions(-) --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -616,10 +616,6 @@ static void msm_gpio_irq_unmask(struct i spin_lock_irqsave(&pctrl->lock, flags); - val = readl(pctrl->regs + g->intr_status_reg); - val &= ~BIT(g->intr_status_bit); - writel(val, pctrl->regs + g->intr_status_reg); - val = readl(pctrl->regs + g->intr_cfg_reg); val |= BIT(g->intr_enable_bit); writel(val, pctrl->regs + g->intr_cfg_reg);
