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Date: Tue, 30 Sep 2014 10:45:04 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: linux-kernel@...r.kernel.org, Barry Song <Baohua.Song@....com>,
Barry Song <baohua@...nel.org>
Cc: linux-gpio@...r.kernel.org,
Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH] RESEND RFT: pinctrl: sirf: move sgpio lock into state container
Instead of referring to a global static variable for the sgpio
locking, use the state container to contain the lock.
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
Barry, did you get around to testing this patch?
---
drivers/pinctrl/sirf/pinctrl-sirf.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c
index 4c1d7c68666d..3ac7848a8551 100644
--- a/drivers/pinctrl/sirf/pinctrl-sirf.c
+++ b/drivers/pinctrl/sirf/pinctrl-sirf.c
@@ -40,10 +40,9 @@ struct sirfsoc_gpio_chip {
struct of_mm_gpio_chip chip;
bool is_marco; /* for marco, some registers are different with prima2 */
struct sirfsoc_gpio_bank sgpio_bank[SIRFSOC_GPIO_NO_OF_BANKS];
+ spinlock_t lock;
};
-static DEFINE_SPINLOCK(sgpio_lock);
-
static struct sirfsoc_pin_group *sirfsoc_pin_groups;
static int sirfsoc_pingrp_cnt;
@@ -440,13 +439,13 @@ static void sirfsoc_gpio_irq_ack(struct irq_data *d)
offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
- spin_lock_irqsave(&sgpio_lock, flags);
+ spin_lock_irqsave(&sgpio->lock, flags);
val = readl(sgpio->chip.regs + offset);
writel(val, sgpio->chip.regs + offset);
- spin_unlock_irqrestore(&sgpio_lock, flags);
+ spin_unlock_irqrestore(&sgpio->lock, flags);
}
static void __sirfsoc_gpio_irq_mask(struct sirfsoc_gpio_chip *sgpio,
@@ -458,14 +457,14 @@ static void __sirfsoc_gpio_irq_mask(struct sirfsoc_gpio_chip *sgpio,
offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
- spin_lock_irqsave(&sgpio_lock, flags);
+ spin_lock_irqsave(&sgpio->lock, flags);
val = readl(sgpio->chip.regs + offset);
val &= ~SIRFSOC_GPIO_CTL_INTR_EN_MASK;
val &= ~SIRFSOC_GPIO_CTL_INTR_STS_MASK;
writel(val, sgpio->chip.regs + offset);
- spin_unlock_irqrestore(&sgpio_lock, flags);
+ spin_unlock_irqrestore(&sgpio->lock, flags);
}
static void sirfsoc_gpio_irq_mask(struct irq_data *d)
@@ -488,14 +487,14 @@ static void sirfsoc_gpio_irq_unmask(struct irq_data *d)
offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
- spin_lock_irqsave(&sgpio_lock, flags);
+ spin_lock_irqsave(&sgpio->lock, flags);
val = readl(sgpio->chip.regs + offset);
val &= ~SIRFSOC_GPIO_CTL_INTR_STS_MASK;
val |= SIRFSOC_GPIO_CTL_INTR_EN_MASK;
writel(val, sgpio->chip.regs + offset);
- spin_unlock_irqrestore(&sgpio_lock, flags);
+ spin_unlock_irqrestore(&sgpio->lock, flags);
}
static int sirfsoc_gpio_irq_type(struct irq_data *d, unsigned type)
@@ -509,7 +508,7 @@ static int sirfsoc_gpio_irq_type(struct irq_data *d, unsigned type)
offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
- spin_lock_irqsave(&sgpio_lock, flags);
+ spin_lock_irqsave(&sgpio->lock, flags);
val = readl(sgpio->chip.regs + offset);
val &= ~(SIRFSOC_GPIO_CTL_INTR_STS_MASK | SIRFSOC_GPIO_CTL_OUT_EN_MASK);
@@ -541,7 +540,7 @@ static int sirfsoc_gpio_irq_type(struct irq_data *d, unsigned type)
writel(val, sgpio->chip.regs + offset);
- spin_unlock_irqrestore(&sgpio_lock, flags);
+ spin_unlock_irqrestore(&sgpio->lock, flags);
return 0;
}
@@ -704,11 +703,11 @@ static int sirfsoc_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
- spin_lock_irqsave(&sgpio_lock, flags);
+ spin_lock_irqsave(&sgpio->lock, flags);
sirfsoc_gpio_set_output(sgpio, bank, offset, value);
- spin_unlock_irqrestore(&sgpio_lock, flags);
+ spin_unlock_irqrestore(&sgpio->lock, flags);
return 0;
}
@@ -801,6 +800,7 @@ static int sirfsoc_gpio_probe(struct device_node *np)
sgpio = devm_kzalloc(&pdev->dev, sizeof(*sgpio), GFP_KERNEL);
if (!sgpio)
return -ENOMEM;
+ spin_lock_init(&sgpio->lock);
regs = of_iomap(np, 0);
if (!regs)
--
1.9.3
--
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