[PATCH 06/10] gpio: pxa: define nr gpios in platform data
Haojian Zhuang
haojian.zhuang at linaro.org
Wed Jan 23 03:25:50 EST 2013
Avoid to define gpio numbers in gpio driver. Define it in platform data
instead.
Signed-off-by: Haojian Zhuang <haojian.zhuang at linaro.org>
---
arch/arm/mach-mmp/aspenite.c | 1 +
arch/arm/mach-mmp/avengers_lite.c | 1 +
arch/arm/mach-mmp/brownstone.c | 1 +
arch/arm/mach-mmp/flint.c | 1 +
arch/arm/mach-mmp/gplugd.c | 1 +
arch/arm/mach-mmp/tavorevb.c | 1 +
arch/arm/mach-mmp/teton_bga.c | 1 +
arch/arm/mach-mmp/ttc_dkb.c | 1 +
arch/arm/mach-pxa/pxa25x.c | 3 +++
arch/arm/mach-pxa/pxa27x.c | 1 +
arch/arm/mach-pxa/pxa3xx.c | 15 +++++++++++-
drivers/gpio/gpio-pxa.c | 48 +++++++------------------------------
include/linux/gpio-pxa.h | 1 +
13 files changed, 35 insertions(+), 41 deletions(-)
diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
index ee1fb62..f5aea07 100644
--- a/arch/arm/mach-mmp/aspenite.c
+++ b/arch/arm/mach-mmp/aspenite.c
@@ -112,6 +112,7 @@ static unsigned long common_pin_config[] __initdata = {
};
static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+ .nr_gpios = 128,
.ed_mask = 1,
};
diff --git a/arch/arm/mach-mmp/avengers_lite.c b/arch/arm/mach-mmp/avengers_lite.c
index 8b4b1ae..2f93f8f 100644
--- a/arch/arm/mach-mmp/avengers_lite.c
+++ b/arch/arm/mach-mmp/avengers_lite.c
@@ -34,6 +34,7 @@ static unsigned long avengers_lite_pin_config_V16F[] __initdata = {
};
static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+ .nr_gpios = 128,
.ed_mask = 1,
};
diff --git a/arch/arm/mach-mmp/brownstone.c b/arch/arm/mach-mmp/brownstone.c
index 0454488..7f07cc5 100644
--- a/arch/arm/mach-mmp/brownstone.c
+++ b/arch/arm/mach-mmp/brownstone.c
@@ -106,6 +106,7 @@ static unsigned long brownstone_pin_config[] __initdata = {
};
static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
+ .nr_gpios = 192,
.ed_mask = 1,
};
diff --git a/arch/arm/mach-mmp/flint.c b/arch/arm/mach-mmp/flint.c
index 7ec873c..bf37d97 100644
--- a/arch/arm/mach-mmp/flint.c
+++ b/arch/arm/mach-mmp/flint.c
@@ -79,6 +79,7 @@ static unsigned long flint_pin_config[] __initdata = {
};
static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
+ .nr_gpios = 192,
.ed_mask = 1,
};
diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c
index d592041..47808e1 100644
--- a/arch/arm/mach-mmp/gplugd.c
+++ b/arch/arm/mach-mmp/gplugd.c
@@ -129,6 +129,7 @@ static unsigned long gplugd_pin_config[] __initdata = {
};
static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+ .nr_gpios = 128,
.ed_mask = 1,
};
diff --git a/arch/arm/mach-mmp/tavorevb.c b/arch/arm/mach-mmp/tavorevb.c
index a855e69..dd4a22b 100644
--- a/arch/arm/mach-mmp/tavorevb.c
+++ b/arch/arm/mach-mmp/tavorevb.c
@@ -62,6 +62,7 @@ static unsigned long tavorevb_pin_config[] __initdata = {
};
static struct pxa_gpio_platform_data ttc_dkb_gpio_pdata = {
+ .nr_gpios = 128,
.ed_mask = 1,
};
diff --git a/arch/arm/mach-mmp/teton_bga.c b/arch/arm/mach-mmp/teton_bga.c
index 9f64f37..b3e7bf9 100644
--- a/arch/arm/mach-mmp/teton_bga.c
+++ b/arch/arm/mach-mmp/teton_bga.c
@@ -51,6 +51,7 @@ static unsigned long teton_bga_pin_config[] __initdata = {
};
static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+ .nr_gpios = 128,
.ed_mask = 1,
};
diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c
index 74081cd..597268c 100644
--- a/arch/arm/mach-mmp/ttc_dkb.c
+++ b/arch/arm/mach-mmp/ttc_dkb.c
@@ -75,6 +75,7 @@ static unsigned long ttc_dkb_pin_config[] __initdata = {
};
static struct pxa_gpio_platform_data ttc_dkb_gpio_pdata = {
+ .nr_gpios = 128,
.ed_mask = 1,
};
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 90415a6..eb82ece 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -342,6 +342,9 @@ void __init pxa25x_map_io(void)
static struct pxa_gpio_platform_data pxa25x_gpio_info __initdata = {
#ifdef CONFIG_CPU_PXA26x
.inverted = 1,
+ .nr_gpios = 90,
+#else
+ .nr_gpios = 85,
#endif
.gafr = 1,
.gpio_set_wake = gpio_set_wake,
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 91ac5d9..8e6b164 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -423,6 +423,7 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
static struct pxa_gpio_platform_data pxa27x_gpio_info __initdata = {
.gafr = 1,
+ .nr_gpios = 121,
.gpio_set_wake = gpio_set_wake,
};
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 656a1bb..a0cc797 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -435,6 +435,10 @@ void __init pxa3xx_set_i2c_power_info(struct i2c_pxa_platform_data *info)
pxa_register_device(&pxa3xx_device_i2c_power, info);
}
+static struct pxa_gpio_platform_data pxa3xx_gpio_info __initdata = {
+ .nr_gpios = 128,
+};
+
static struct platform_device *devices[] __initdata = {
&pxa_device_gpio,
&pxa27x_device_udc,
@@ -482,8 +486,17 @@ static int __init pxa3xx_init(void)
register_syscore_ops(&pxa3xx_mfp_syscore_ops);
register_syscore_ops(&pxa3xx_clock_syscore_ops);
- if (!of_have_populated_dt())
+ if (!of_have_populated_dt()) {
+ if (cpu_is_pxa93x())
+ pxa3xx_gpio_info.nr_gpios = 192;
+ ret = platform_device_add_data(&pxa_device_gpio,
+ &pxa3xx_gpio_info,
+ sizeof(struct pxa_gpio_platform_data);
+ if (ret < 0)
+ break;
+
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
+ }
}
return ret;
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 8b3edc7..67be225 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -380,36 +380,6 @@ static struct irq_chip pxa_muxed_gpio_chip = {
.irq_set_wake = pxa_gpio_set_wake,
};
-static int pxa_gpio_nums(void)
-{
- int count = 0;
-
-#ifdef CONFIG_ARCH_PXA
- if (cpu_is_pxa25x()) {
-#ifdef CONFIG_CPU_PXA26x
- count = 89;
-#elif defined(CONFIG_PXA25x)
- count = 84;
-#endif /* CONFIG_CPU_PXA26x */
- } else if (cpu_is_pxa27x()) {
- count = 120;
- } else if (cpu_is_pxa93x()) {
- count = 191;
- } else if (cpu_is_pxa3xx()) {
- count = 127;
- }
-#endif /* CONFIG_ARCH_PXA */
-
-#ifdef CONFIG_ARCH_MMP
- if (cpu_is_pxa168() || cpu_is_pxa910()) {
- count = 127;
- } else if (cpu_is_mmp2()) {
- count = 191;
- }
-#endif /* CONFIG_ARCH_MMP */
- return count;
-}
-
#ifdef CONFIG_OF
static struct of_device_id pxa_gpio_dt_ids[] = {
{ .compatible = "mrvl,pxa-gpio" },
@@ -433,7 +403,7 @@ static const struct irq_domain_ops pxa_irq_domain_ops = {
static int pxa_gpio_probe_dt(struct platform_device *pdev)
{
- int ret, nr_banks, nr_gpios;
+ int ret, nr_banks;
struct pxa_gpio_platform_data *pdata;
struct device_node *prev, *next, *np = pdev->dev.of_node;
const struct of_device_id *of_id =
@@ -453,6 +423,11 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
ret = of_find_property(np, "marvell,gpio-inverted", NULL);
if (ret)
pdata->inverted = 1;
+ ret = of_property_read_u32(np, "marvell,nr-gpios", &pdata->nr_gpios);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "nr-gpios isn't specified\n");
+ return -ENOTSUPP;
+ }
/* set the platform data */
pdev->dev.platform_data = pdata;
@@ -470,8 +445,6 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
prev = next;
}
of_node_put(prev);
- nr_gpios = nr_banks << 5;
- pxa_last_gpio = nr_gpios - 1;
return 0;
err:
@@ -542,14 +515,8 @@ static int pxa_gpio_probe(struct platform_device *pdev)
int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
ret = pxa_gpio_probe_dt(pdev);
- if (ret < 0) {
- pxa_last_gpio = pxa_gpio_nums();
- } else {
+ if (!ret)
use_of = 1;
- }
-
- if (!pxa_last_gpio)
- return -EINVAL;
irq0 = platform_get_irq_byname(pdev, "gpio0");
irq1 = platform_get_irq_byname(pdev, "gpio1");
@@ -583,6 +550,7 @@ static int pxa_gpio_probe(struct platform_device *pdev)
/* Initialize GPIO chips */
info = dev_get_platdata(&pdev->dev);
+ pxa_last_gpio = info->nr_gpios - 1;
pxa_init_gpio_chip(pdev, pxa_last_gpio,
info ? info->gpio_set_wake : NULL);
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index 5a9e003..cf17f4c 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -19,6 +19,7 @@ struct pxa_gpio_platform_data {
unsigned ed_mask; /* not 0 means ed_mask reg is available */
unsigned gafr; /* only valid for PXA25x/PXA26x/PXA27x */
unsigned inverted; /* only valid for PXA26x */
+ unsigned nr_gpios;
int (*gpio_set_wake)(unsigned int gpio, unsigned int on);
};
--
1.7.10.4
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