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authorThierry Reding <thierry.reding@gmail.com>2015-10-05 10:49:50 +0200
committerRobert Jarzmik <robert.jarzmik@free.fr>2015-10-14 23:06:50 +0200
commitbfcb311744cf4a6d99602b022daabfc107bb35ca (patch)
tree0cbe0779d58b79950fed32e1f0d4798736bdb061 /arch/arm/mach-pxa/palmtc.c
parent18999cba54f7f117ae7b2da01b4ad52f42d4e18c (diff)
downloadop-kernel-dev-bfcb311744cf4a6d99602b022daabfc107bb35ca.zip
op-kernel-dev-bfcb311744cf4a6d99602b022daabfc107bb35ca.tar.gz
ARM: pxa: palmtc: 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>
Diffstat (limited to 'arch/arm/mach-pxa/palmtc.c')
-rw-r--r--arch/arm/mach-pxa/palmtc.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/mach-pxa/palmtc.c b/arch/arm/mach-pxa/palmtc.c
index 7691c97..aebf6de 100644
--- a/arch/arm/mach-pxa/palmtc.c
+++ b/arch/arm/mach-pxa/palmtc.c
@@ -18,6 +18,7 @@
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/input.h>
+#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/gpio.h>
#include <linux/input/matrix_keypad.h>
@@ -166,11 +167,14 @@ static inline void palmtc_keys_init(void) {}
* Backlight
******************************************************************************/
#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
+static struct pwm_lookup palmtc_pwm_lookup[] = {
+ PWM_LOOKUP("pxa25x-pwm.1", 0, "pwm-backlight.0", NULL, PALMTC_PERIOD_NS,
+ PWM_PERIOD_NORMAL),
+};
+
static struct platform_pwm_backlight_data palmtc_backlight_data = {
- .pwm_id = 1,
.max_brightness = PALMTC_MAX_INTENSITY,
.dft_brightness = PALMTC_MAX_INTENSITY,
- .pwm_period_ns = PALMTC_PERIOD_NS,
.enable_gpio = GPIO_NR_PALMTC_BL_POWER,
};
@@ -184,6 +188,7 @@ static struct platform_device palmtc_backlight = {
static void __init palmtc_pwm_init(void)
{
+ pwm_add_table(palmtc_pwm_lookup, ARRAY_SIZE(palmtc_pwm_lookup));
platform_device_register(&palmtc_backlight);
}
#else
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