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authorThierry Reding <thierry.reding@gmail.com>2015-10-05 10:49:45 +0200
committerRobert Jarzmik <robert.jarzmik@free.fr>2015-10-06 21:05:06 +0200
commit2dc9975a516aa49790c69368b3bbc519b64eb059 (patch)
treefc019a9fedcde990a1f6b2cb0afa6f768aa330c5 /arch/arm/mach-pxa
parentb0e9bbb97fea0198de9140142f750c4b7f08fc8a (diff)
ARM: pxa: lpd270: 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/lpd270.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index b070167deef2..ab4e84f4ee0c 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -23,6 +23,7 @@
#include <linux/ioport.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/smc91x.h>
@@ -271,11 +272,14 @@ static struct platform_device lpd270_flash_device[2] = {
},
};
+static struct pwm_lookup lpd270_pwm_lookup[] = {
+ PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
+ PWM_POLARITY_NORMAL),
+};
+
static struct platform_pwm_backlight_data lpd270_backlight_data = {
- .pwm_id = 0,
.max_brightness = 1,
.dft_brightness = 1,
- .pwm_period_ns = 78770,
.enable_gpio = -1,
};
@@ -474,6 +478,7 @@ static void __init lpd270_init(void)
*/
ARB_CNTRL = ARB_CORE_PARK | 0x234;
+ pwm_add_table(lpd270_pwm_lookup, ARRAY_SIZE(lpd270_pwm_lookup));
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
pxa_set_ac97_info(NULL);