aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpio/gpio-moxart.c
diff options
context:
space:
mode:
authorJonas Jensen <jonas.jensen@gmail.com>2013-12-02 05:27:59 -0500
committerLinus Walleij <linus.walleij@linaro.org>2013-12-04 07:27:59 -0500
commita87854da2c55b15adc7326a9ee5f8fde281ffe43 (patch)
treecd74a9c0eb4ca5d20e75ba40108adadcf441b3b7 /drivers/gpio/gpio-moxart.c
parent14f4a8838acac0fe6bf710ec08fc4cce57c0011b (diff)
gpio: MOXA ART: rename moxart_gpio_base to base
Renaming "moxart_gpio_base" to "base" allows better fit, remove line breaks in moxart_gpio_get(). While doing trivial cleanup, also remove fields initialized with zero in moxart_template_chip. Signed-off-by: Jonas Jensen <jonas.jensen@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-moxart.c')
-rw-r--r--drivers/gpio/gpio-moxart.c24
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/gpio/gpio-moxart.c b/drivers/gpio/gpio-moxart.c
index d662cdededac..4ecd195e4a5b 100644
--- a/drivers/gpio/gpio-moxart.c
+++ b/drivers/gpio/gpio-moxart.c
@@ -30,7 +30,7 @@
30 30
31struct moxart_gpio_chip { 31struct moxart_gpio_chip {
32 struct gpio_chip gpio; 32 struct gpio_chip gpio;
33 void __iomem *moxart_gpio_base; 33 void __iomem *base;
34}; 34};
35 35
36static inline struct moxart_gpio_chip *to_moxart_gpio(struct gpio_chip *chip) 36static inline struct moxart_gpio_chip *to_moxart_gpio(struct gpio_chip *chip)
@@ -51,7 +51,7 @@ static void moxart_gpio_free(struct gpio_chip *chip, unsigned offset)
51static int moxart_gpio_direction_input(struct gpio_chip *chip, unsigned offset) 51static int moxart_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
52{ 52{
53 struct moxart_gpio_chip *gc = to_moxart_gpio(chip); 53 struct moxart_gpio_chip *gc = to_moxart_gpio(chip);
54 void __iomem *ioaddr = gc->moxart_gpio_base + GPIO_PIN_DIRECTION; 54 void __iomem *ioaddr = gc->base + GPIO_PIN_DIRECTION;
55 55
56 writel(readl(ioaddr) & ~BIT(offset), ioaddr); 56 writel(readl(ioaddr) & ~BIT(offset), ioaddr);
57 return 0; 57 return 0;
@@ -61,7 +61,7 @@ static int moxart_gpio_direction_output(struct gpio_chip *chip,
61 unsigned offset, int value) 61 unsigned offset, int value)
62{ 62{
63 struct moxart_gpio_chip *gc = to_moxart_gpio(chip); 63 struct moxart_gpio_chip *gc = to_moxart_gpio(chip);
64 void __iomem *ioaddr = gc->moxart_gpio_base + GPIO_PIN_DIRECTION; 64 void __iomem *ioaddr = gc->base + GPIO_PIN_DIRECTION;
65 65
66 writel(readl(ioaddr) | BIT(offset), ioaddr); 66 writel(readl(ioaddr) | BIT(offset), ioaddr);
67 return 0; 67 return 0;
@@ -70,7 +70,7 @@ static int moxart_gpio_direction_output(struct gpio_chip *chip,
70static void moxart_gpio_set(struct gpio_chip *chip, unsigned offset, int value) 70static void moxart_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
71{ 71{
72 struct moxart_gpio_chip *gc = to_moxart_gpio(chip); 72 struct moxart_gpio_chip *gc = to_moxart_gpio(chip);
73 void __iomem *ioaddr = gc->moxart_gpio_base + GPIO_DATA_OUT; 73 void __iomem *ioaddr = gc->base + GPIO_DATA_OUT;
74 u32 reg = readl(ioaddr); 74 u32 reg = readl(ioaddr);
75 75
76 if (value) 76 if (value)
@@ -85,14 +85,12 @@ static void moxart_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
85static int moxart_gpio_get(struct gpio_chip *chip, unsigned offset) 85static int moxart_gpio_get(struct gpio_chip *chip, unsigned offset)
86{ 86{
87 struct moxart_gpio_chip *gc = to_moxart_gpio(chip); 87 struct moxart_gpio_chip *gc = to_moxart_gpio(chip);
88 u32 ret = readl(gc->moxart_gpio_base + GPIO_PIN_DIRECTION); 88 u32 ret = readl(gc->base + GPIO_PIN_DIRECTION);
89 89
90 if (ret & BIT(offset)) 90 if (ret & BIT(offset))
91 return !!(readl(gc->moxart_gpio_base + GPIO_DATA_OUT) & 91 return !!(readl(gc->base + GPIO_DATA_OUT) & BIT(offset));
92 BIT(offset));
93 else 92 else
94 return !!(readl(gc->moxart_gpio_base + GPIO_DATA_IN) & 93 return !!(readl(gc->base + GPIO_DATA_IN) & BIT(offset));
95 BIT(offset));
96} 94}
97 95
98static struct gpio_chip moxart_template_chip = { 96static struct gpio_chip moxart_template_chip = {
@@ -103,9 +101,7 @@ static struct gpio_chip moxart_template_chip = {
103 .direction_output = moxart_gpio_direction_output, 101 .direction_output = moxart_gpio_direction_output,
104 .set = moxart_gpio_set, 102 .set = moxart_gpio_set,
105 .get = moxart_gpio_get, 103 .get = moxart_gpio_get,
106 .base = 0,
107 .ngpio = 32, 104 .ngpio = 32,
108 .can_sleep = 0,
109}; 105};
110 106
111static int moxart_gpio_probe(struct platform_device *pdev) 107static int moxart_gpio_probe(struct platform_device *pdev)
@@ -123,11 +119,11 @@ static int moxart_gpio_probe(struct platform_device *pdev)
123 mgc->gpio = moxart_template_chip; 119 mgc->gpio = moxart_template_chip;
124 120
125 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 121 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
126 mgc->moxart_gpio_base = devm_ioremap_resource(dev, res); 122 mgc->base = devm_ioremap_resource(dev, res);
127 if (IS_ERR(mgc->moxart_gpio_base)) { 123 if (IS_ERR(mgc->base)) {
128 dev_err(dev, "%s: devm_ioremap_resource res_gpio failed\n", 124 dev_err(dev, "%s: devm_ioremap_resource res_gpio failed\n",
129 dev->of_node->full_name); 125 dev->of_node->full_name);
130 return PTR_ERR(mgc->moxart_gpio_base); 126 return PTR_ERR(mgc->base);
131 } 127 }
132 128
133 mgc->gpio.dev = dev; 129 mgc->gpio.dev = dev;