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* [PATCH] RESEND RFT: pinctrl: sirf: move sgpio lock into state container
@ 2014-09-30  8:45 Linus Walleij
  2014-10-21  8:32 ` Linus Walleij
  0 siblings, 1 reply; 3+ messages in thread
From: Linus Walleij @ 2014-09-30  8:45 UTC (permalink / raw)
  To: linux-kernel, Barry Song, Barry Song; +Cc: linux-gpio, Linus Walleij

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@linaro.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


^ permalink raw reply related	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-04-09  8:15 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2014-09-30  8:45 [PATCH] RESEND RFT: pinctrl: sirf: move sgpio lock into state container Linus Walleij
2014-10-21  8:32 ` Linus Walleij
2015-04-09  8:15   ` Linus Walleij

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