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@xxxxxx>
---
arch/arm/mach-omap2/board-zoom-display.c | 56 ----------------------------
arch/arm/mach-omap2/board-zoom-peripherals.c | 53 +++++++++++++++++++++++++-
2 files changed, 52 insertions(+), 57 deletions(-)
diff --git a/arch/arm/mach-omap2/board-zoom-display.c b/arch/arm/mach-omap2/board-zoom-display.c
index 8cef477..9a7174f 100644
--- a/arch/arm/mach-omap2/board-zoom-display.c
+++ b/arch/arm/mach-omap2/board-zoom-display.c
@@ -12,7 +12,6 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
-#include <linux/i2c/twl.h>
#include <linux/spi/spi.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <video/omapdss.h>
@@ -49,59 +48,6 @@ static void zoom_panel_disable_lcd(struct omap_dss_device *dssdev)
{
}
-/* Register offsets in TWL4030_MODULE_INTBR */
-#define TWL_INTBR_PMBR1 0xD
-#define TWL_INTBR_GPBR1 0xC
-
-/* Register offsets in TWL_MODULE_PWM */
-#define TWL_LED_PWMON 0x3
-#define TWL_LED_PWMOFF 0x4
-
-static int zoom_set_bl_intensity(struct omap_dss_device *dssdev, int level)
-{
-#ifdef CONFIG_TWL4030_CORE
- unsigned char c;
- u8 mux_pwm, enb_pwm;
-
- if (level > 100)
- return -1;
-
- twl_i2c_read_u8(TWL4030_MODULE_INTBR, &mux_pwm, TWL_INTBR_PMBR1);
- twl_i2c_read_u8(TWL4030_MODULE_INTBR, &enb_pwm, TWL_INTBR_GPBR1);
-
- if (level == 0) {
- /* disable pwm1 output and clock */
- enb_pwm = enb_pwm & 0xF5;
- /* change pwm1 pin to gpio pin */
- mux_pwm = mux_pwm & 0xCF;
- twl_i2c_write_u8(TWL4030_MODULE_INTBR,
- enb_pwm, TWL_INTBR_GPBR1);
- twl_i2c_write_u8(TWL4030_MODULE_INTBR,
- mux_pwm, TWL_INTBR_PMBR1);
- return 0;
- }
-
- if (!((enb_pwm & 0xA) && (mux_pwm & 0x30))) {
- /* change gpio pin to pwm1 pin */
- mux_pwm = mux_pwm | 0x30;
- /* enable pwm1 output and clock*/
- enb_pwm = enb_pwm | 0x0A;
- twl_i2c_write_u8(TWL4030_MODULE_INTBR,
- mux_pwm, TWL_INTBR_PMBR1);
- twl_i2c_write_u8(TWL4030_MODULE_INTBR,
- enb_pwm, TWL_INTBR_GPBR1);
- }
-
- c = ((50 * (100 - level)) / 100) + 1;
- twl_i2c_write_u8(TWL_MODULE_PWM, 0x7F, TWL_LED_PWMOFF);
- twl_i2c_write_u8(TWL_MODULE_PWM, c, TWL_LED_PWMON);
-#else
- pr_warn("Backlight not enabled\n");
-#endif
-
- return 0;
-}
-
static struct omap_dss_device zoom_lcd_device = {
.name = "lcd",
.driver_name = "NEC_8048_panel",
@@ -109,8 +55,6 @@ static struct omap_dss_device zoom_lcd_device = {
.phy.dpi.data_lines = 24,
.platform_enable = zoom_panel_enable_lcd,
.platform_disable = zoom_panel_disable_lcd,
- .max_backlight_level = 100,
- .set_backlight = zoom_set_bl_intensity,
};
static struct omap_dss_device *zoom_dss_devices[] = {
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 platform_device omap_vwlan_device = {
},
};
+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 @@ void __init zoom_peripherals_init(void)
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();
--
1.8.1.5
--
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