From: philipp.zabel@gmail.com (Philipp Zabel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] pxa/magician: use gpio arrays for backlight and lcd power init
Date: Wed, 20 Apr 2011 21:55:22 +0200 [thread overview]
Message-ID: <1303329323.21545.6.camel@flow> (raw)
Use gpio_request_array() / gpio_free_array() in backlight init and exit
functions and lcd power initialization.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
---
arch/arm/mach-pxa/magician.c | 43 ++++++++++++++++-------------------------
1 files changed, 17 insertions(+), 26 deletions(-)
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 9984ef7..22da1e9 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -344,22 +344,14 @@ static struct pxafb_mach_info samsung_info = {
* Backlight
*/
+static struct gpio magician_bl_gpios[] = {
+ { EGPIO_MAGICIAN_BL_POWER, GPIOF_DIR_OUT, "Backlight power" },
+ { EGPIO_MAGICIAN_BL_POWER2, GPIOF_DIR_OUT, "Backlight power 2" },
+};
+
static int magician_backlight_init(struct device *dev)
{
- int ret;
-
- ret = gpio_request(EGPIO_MAGICIAN_BL_POWER, "BL_POWER");
- if (ret)
- goto err;
- ret = gpio_request(EGPIO_MAGICIAN_BL_POWER2, "BL_POWER2");
- if (ret)
- goto err2;
- return 0;
-
-err2:
- gpio_free(EGPIO_MAGICIAN_BL_POWER);
-err:
- return ret;
+ return gpio_request_array(ARRAY_AND_SIZE(magician_bl_gpios));
}
static int magician_backlight_notify(struct device *dev, int brightness)
@@ -376,8 +368,7 @@ static int magician_backlight_notify(struct device *dev, int brightness)
static void magician_backlight_exit(struct device *dev)
{
- gpio_free(EGPIO_MAGICIAN_BL_POWER);
- gpio_free(EGPIO_MAGICIAN_BL_POWER2);
+ gpio_free_array(ARRAY_AND_SIZE(magician_bl_gpios));
}
static struct platform_pwm_backlight_data backlight_data = {
@@ -712,6 +703,12 @@ static struct platform_device *devices[] __initdata = {
&leds_gpio,
};
+static struct gpio magician_lcd_gpios[] = {
+ { GPIO104_MAGICIAN_LCD_POWER_1, GPIOF_OUT_INIT_LOW, "LCD power 1" },
+ { GPIO105_MAGICIAN_LCD_POWER_2, GPIOF_OUT_INIT_LOW, "LCD power 2" },
+ { GPIO106_MAGICIAN_LCD_POWER_3, GPIOF_OUT_INIT_LOW, "LCD power 3" }
+};
+
static void __init magician_init(void)
{
void __iomem *cpld;
@@ -747,16 +744,10 @@ static void __init magician_init(void)
system_rev = board_id & 0x7;
lcd_select = board_id & 0x8;
pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
- if (lcd_select && (system_rev < 3)) {
- gpio_request(GPIO75_MAGICIAN_SAMSUNG_POWER, "SAMSUNG_POWER");
- gpio_direction_output(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
- }
- gpio_request(GPIO104_MAGICIAN_LCD_POWER_1, "LCD_POWER_1");
- gpio_request(GPIO105_MAGICIAN_LCD_POWER_2, "LCD_POWER_2");
- gpio_request(GPIO106_MAGICIAN_LCD_POWER_3, "LCD_POWER_3");
- gpio_direction_output(GPIO104_MAGICIAN_LCD_POWER_1, 0);
- gpio_direction_output(GPIO105_MAGICIAN_LCD_POWER_2, 0);
- gpio_direction_output(GPIO106_MAGICIAN_LCD_POWER_3, 0);
+ if (lcd_select && (system_rev < 3))
+ gpio_request_one(GPIO75_MAGICIAN_SAMSUNG_POWER,
+ GPIOF_OUT_INIT_LOW, "SAMSUNG_POWER");
+ gpio_request_array(ARRAY_AND_SIZE(magician_lcd_gpios));
pxa_set_fb_info(NULL, lcd_select ? &samsung_info : &toppoly_info);
} else
pr_err("LCD detection: CPLD mapping failed\n");
--
1.7.4.4
next reply other threads:[~2011-04-20 19:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-20 19:55 Philipp Zabel [this message]
2011-04-27 18:50 ` [PATCH v2] pxa/magician: use gpio arrays for backlight and global gpio initialization Philipp Zabel
2011-04-28 20:21 ` [PATCH v3] " Philipp Zabel
2011-07-05 7:57 ` Eric Miao
2011-07-05 7:43 ` [PATCH] pxa/magician: use gpio arrays for backlight and lcd power init Eric Miao
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