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authorThierry Reding <thierry.reding@gmail.com>2015-10-05 10:49:57 +0200
committerRobert Jarzmik <robert.jarzmik@free.fr>2015-10-14 23:06:52 +0200
commit6f26f6f5d1469bdf5f4c2df94949f404f68f52d3 (patch)
treea5dc8b4a0c24aa7ced9a5eaaadac31d41a0acd11 /arch/arm/mach-pxa
parenta3827639a36ab2886d2254d74372dafff54c5365 (diff)
ARM: pxa: zylonite: 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')
-rw-r--r--arch/arm/mach-pxa/zylonite.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 77daea478e88..e20359a7433c 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/smc91x.h>
@@ -120,11 +121,14 @@ static inline void zylonite_init_leds(void) {}
#endif
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
+static struct pwm_lookup zylonite_pwm_lookup[] = {
+ PWM_LOOKUP("pxa27x-pwm.1", 1, "pwm-backlight.0", NULL, 10000,
+ PWM_POLARITY_NORMAL),
+};
+
static struct platform_pwm_backlight_data zylonite_backlight_data = {
- .pwm_id = 3,
.max_brightness = 100,
.dft_brightness = 100,
- .pwm_period_ns = 10000,
.enable_gpio = -1,
};
@@ -206,6 +210,7 @@ static struct pxafb_mach_info zylonite_sharp_lcd_info = {
static void __init zylonite_init_lcd(void)
{
+ pwm_add_table(zylonite_pwm_lookup, ARRAY_SIZE(zylonite_pwm_lookup));
platform_device_register(&zylonite_backlight_device);
if (lcd_id & 0x20) {