diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0025-pinctrl-msm-drop-wake_irqs-bitmap.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0025-pinctrl-msm-drop-wake_irqs-bitmap.patch | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches/0025-pinctrl-msm-drop-wake_irqs-bitmap.patch b/target/linux/ipq806x/patches/0025-pinctrl-msm-drop-wake_irqs-bitmap.patch new file mode 100644 index 0000000000..fba5e4f9e3 --- /dev/null +++ b/target/linux/ipq806x/patches/0025-pinctrl-msm-drop-wake_irqs-bitmap.patch @@ -0,0 +1,71 @@ +From ef8eb0991f291df12c12477648235f955cc388b0 Mon Sep 17 00:00:00 2001 +From: Josh Cartwright <joshc@codeaurora.org> +Date: Wed, 5 Mar 2014 13:33:08 -0600 +Subject: [PATCH 025/182] pinctrl: msm: drop wake_irqs bitmap + +Currently, the wake_irqs bitmap is used to track whether there are any +gpio's which are configured as wake irqs, and uses this to determine +whether or not to call enable_irq_wake()/disable_irq_wake() on the +summary interrupt. + +However, the genirq core already handles this case, by maintaining a +'wake_count' per irq_desc, and only calling into the controlling +irq_chip when wake_count transitions 0 <-> 1. + +Drop this bitmap, and unconditionally call irq_set_irq_wake() on the +summary interrupt. + +Signed-off-by: Josh Cartwright <joshc@codeaurora.org> +Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> +Signed-off-by: Linus Walleij <linus.walleij@linaro.org> +--- + drivers/pinctrl/pinctrl-msm.c | 14 +------------- + 1 file changed, 1 insertion(+), 13 deletions(-) + +diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c +index ef2bf31..0e43fdd 100644 +--- a/drivers/pinctrl/pinctrl-msm.c ++++ b/drivers/pinctrl/pinctrl-msm.c +@@ -50,7 +50,6 @@ + * @enabled_irqs: Bitmap of currently enabled irqs. + * @dual_edge_irqs: Bitmap of irqs that need sw emulated dual edge + * detection. +- * @wake_irqs: Bitmap of irqs with requested as wakeup source. + * @soc; Reference to soc_data of platform specific data. + * @regs: Base address for the TLMM register map. + */ +@@ -65,7 +64,6 @@ struct msm_pinctrl { + + DECLARE_BITMAP(dual_edge_irqs, MAX_NR_GPIO); + DECLARE_BITMAP(enabled_irqs, MAX_NR_GPIO); +- DECLARE_BITMAP(wake_irqs, MAX_NR_GPIO); + + const struct msm_pinctrl_soc_data *soc; + void __iomem *regs; +@@ -783,22 +781,12 @@ static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on) + { + struct msm_pinctrl *pctrl; + unsigned long flags; +- unsigned ngpio; + + pctrl = irq_data_get_irq_chip_data(d); +- ngpio = pctrl->chip.ngpio; + + spin_lock_irqsave(&pctrl->lock, flags); + +- if (on) { +- if (bitmap_empty(pctrl->wake_irqs, ngpio)) +- enable_irq_wake(pctrl->irq); +- set_bit(d->hwirq, pctrl->wake_irqs); +- } else { +- clear_bit(d->hwirq, pctrl->wake_irqs); +- if (bitmap_empty(pctrl->wake_irqs, ngpio)) +- disable_irq_wake(pctrl->irq); +- } ++ irq_set_irq_wake(pctrl->irq, on); + + spin_unlock_irqrestore(&pctrl->lock, flags); + +-- +1.7.10.4 + |