ARM: OMAP: zoom: Use pwm stack for lcd and keyboard backlight
Use pwm_leds driver for the keyboard light and pwm-backlight for the lcd
backlight control (instead of implementing the PWM driver part in the board
file).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c
index cdc0c10..a90375d 100644
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -22,6 +22,9 @@
#include <linux/platform_data/gpio-omap.h>
#include <linux/platform_data/omap-twl4030.h>
#include <linux/usb/phy.h>
+#include <linux/pwm.h>
+#include <linux/leds_pwm.h>
+#include <linux/pwm_backlight.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -193,6 +196,53 @@
},
};
+static struct pwm_lookup zoom_pwm_lookup[] = {
+ PWM_LOOKUP("twl-pwm", 0, "leds_pwm", "zoom::keypad"),
+ PWM_LOOKUP("twl-pwm", 1, "pwm-backlight", "backlight"),
+};
+
+static struct led_pwm zoom_pwm_leds[] = {
+ {
+ .name = "zoom::keypad",
+ .max_brightness = 127,
+ .pwm_period_ns = 7812500,
+ },
+};
+
+static struct led_pwm_platform_data zoom_pwm_data = {
+ .num_leds = ARRAY_SIZE(zoom_pwm_leds),
+ .leds = zoom_pwm_leds,
+};
+
+static struct platform_device zoom_leds_pwm = {
+ .name = "leds_pwm",
+ .id = -1,
+ .dev = {
+ .platform_data = &zoom_pwm_data,
+ },
+};
+
+static struct platform_pwm_backlight_data zoom_backlight_data = {
+ .pwm_id = 1,
+ .max_brightness = 127,
+ .dft_brightness = 127,
+ .pwm_period_ns = 7812500,
+};
+
+static struct platform_device zoom_backlight_pwm = {
+ .name = "pwm-backlight",
+ .id = -1,
+ .dev = {
+ .platform_data = &zoom_backlight_data,
+ },
+};
+
+static struct platform_device *zoom_devices[] __initdata = {
+ &omap_vwlan_device,
+ &zoom_leds_pwm,
+ &zoom_backlight_pwm,
+};
+
static struct wl12xx_platform_data omap_zoom_wlan_data __initdata = {
.board_ref_clock = WL12XX_REFCLOCK_26, /* 26 MHz */
};
@@ -301,7 +351,8 @@
omap_hsmmc_init(mmc);
omap_i2c_init();
- platform_device_register(&omap_vwlan_device);
+ pwm_add_table(zoom_pwm_lookup, ARRAY_SIZE(zoom_pwm_lookup));
+ platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices));
usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
usb_musb_init(NULL);
enable_board_wakeup_source();