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authorThierry Reding <thierry.reding@gmail.com>2015-10-05 08:49:42 (GMT)
committerRobert Jarzmik <robert.jarzmik@free.fr>2015-10-05 20:24:03 (GMT)
commitbd2e2b3c354605d2064ddd8b3c9fbbe7d2df714f (patch)
tree8c875f51ff4271a950d691ef6bd934ff8da151bf
parent688538636bec2d49d6aae3f9c152216c7aafb8e7 (diff)
downloadlinux-bd2e2b3c354605d2064ddd8b3c9fbbe7d2df714f.tar.xz
ARM: pxa: colibri-pxa270-income: Use PWM lookup table
Use a PWM lookup table to provide the PWM to the pwm-backlight device. The driver has a legacy code path that is required only because boards still use the legacy method of requesting PWMs by global ID. Replacing these usages allows that legacy fallback to be removed. Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
-rw-r--r--arch/arm/mach-pxa/colibri-pxa270-income.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/mach-pxa/colibri-pxa270-income.c b/arch/arm/mach-pxa/colibri-pxa270-income.c
index 3aa2646..db20d25 100644
--- a/arch/arm/mach-pxa/colibri-pxa270-income.c
+++ b/arch/arm/mach-pxa/colibri-pxa270-income.c
@@ -20,6 +20,7 @@
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
+#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/i2c/pxa-i2c.h>
@@ -184,11 +185,14 @@ static inline void income_lcd_init(void) {}
* Backlight
******************************************************************************/
#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
+static struct pwm_lookup income_pwm_lookup[] = {
+ PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 1000000,
+ PWM_POLARITY_NORMAL),
+};
+
static struct platform_pwm_backlight_data income_backlight_data = {
- .pwm_id = 0,
.max_brightness = 0x3ff,
.dft_brightness = 0x1ff,
- .pwm_period_ns = 1000000,
.enable_gpio = -1,
};
@@ -202,6 +206,7 @@ static struct platform_device income_backlight = {
static void __init income_pwm_init(void)
{
+ pwm_add_table(income_pwm_lookup, ARRAY_SIZE(income_pwm_lookup));
platform_device_register(&income_backlight);
}
#else