avr32: favr-32: use generic pwm_bl driver

Switch to the generic pwm_bl driver instead of atmel-pwm-bl.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c
index 1f121497b5177c4a3ac30d715dd98a1f623686cd..234cb071c601d67a98c0090fc8699a3066e6f1ce 100644 (file)
--- a/arch/avr32/boards/favr-32/setup.c
+++ b/arch/avr32/boards/favr-32/setup.c
@@ -18,7 +18,10 @@
 #include <linux/gpio.h>
 #include <linux/leds.h>
 #include <linux/atmel-mci.h>
-#include <linux/atmel-pwm-bl.h>
+#include <linux/pwm.h>
+#include <linux/pwm_backlight.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 
@@ -33,6 +36,8 @@
 #include <mach/board.h>
 #include <mach/portmux.h>
 
+#define PWM_BL_CH 2
+
 /* Oscillator frequencies. These are board-specific */
 unsigned long at32_board_osc_rates[3] = {
        [0] = 32768,    /* 32.768 kHz on RTC osc */
@@ -227,29 +232,36 @@ void __init favr32_setup_leds(void)
        platform_device_register(&favr32_led_dev);
 }
 
-static struct atmel_pwm_bl_platform_data atmel_pwm_bl_pdata = {
-       .pwm_channel            = 2,
-       .pwm_frequency          = 200000,
-       .pwm_compare_max        = 345,
-       .pwm_duty_max           = 345,
-       .pwm_duty_min           = 90,
-       .pwm_active_low         = 1,
-       .gpio_on                = GPIO_PIN_PA(28),
-       .on_active_low          = 0,
+static struct pwm_lookup pwm_lookup[] = {
+       PWM_LOOKUP("at91sam9rl-pwm", PWM_BL_CH, "pwm-backlight.0", NULL,
+                  5000, PWM_POLARITY_INVERSED),
 };
 
-static struct platform_device atmel_pwm_bl_dev = {
-       .name           = "atmel-pwm-bl",
-       .id             = 0,
-       .dev            = {
-               .platform_data = &atmel_pwm_bl_pdata,
+static struct regulator_consumer_supply fixed_power_consumers[] = {
+       REGULATOR_SUPPLY("power", "pwm-backlight.0"),
+};
+
+static struct platform_pwm_backlight_data pwm_bl_data = {
+       .enable_gpio            = GPIO_PIN_PA(28),
+       .max_brightness         = 255,
+       .dft_brightness         = 255,
+       .lth_brightness         = 50,
+};
+
+static struct platform_device pwm_bl_device = {
+       .name = "pwm-backlight",
+       .dev = {
+               .platform_data = &pwm_bl_data,
        },
 };
 
 static void __init favr32_setup_atmel_pwm_bl(void)
 {
-       platform_device_register(&atmel_pwm_bl_dev);
-       at32_select_gpio(atmel_pwm_bl_pdata.gpio_on, 0);
+       pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
+       regulator_register_always_on(0, "fixed", fixed_power_consumers,
+                                   ARRAY_SIZE(fixed_power_consumers), 3300000);
+       platform_device_register(&pwm_bl_device);
+       at32_select_gpio(pwm_bl_data.enable_gpio, 0);
 }
 
 void __init setup_board(void)
@@ -339,7 +351,7 @@ static int __init favr32_init(void)
 
        set_abdac_rate(at32_add_device_abdac(0, &abdac0_data));
 
-       at32_add_device_pwm(1 << atmel_pwm_bl_pdata.pwm_channel);
+       at32_add_device_pwm(1 << PWM_BL_CH);
        at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
        at32_add_device_mci(0, &mci0_data);
        at32_add_device_usba(0, NULL);

diff --git a/arch/avr32/configs/favr-32_defconfig b/arch/avr32/configs/favr-32_defconfig
index 07bed3f7eb5e6022372ed35b6a8e303356cbbc8a..b3eb67dc05ac71f7f3538f28dab4cfafc3305985 100644 (file)
--- a/arch/avr32/configs/favr-32_defconfig
+++ b/arch/avr32/configs/favr-32_defconfig
@@ -67,7 +67,6 @@ CONFIG_MTD_PHYSMAP=y
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=m
-CONFIG_ATMEL_PWM=m
 CONFIG_ATMEL_TCLIB=y
 CONFIG_ATMEL_SSC=m
 CONFIG_NETDEVICES=y
@@ -108,7 +107,7 @@ CONFIG_FB=y
 CONFIG_FB_ATMEL=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 # CONFIG_LCD_CLASS_DEVICE is not set
-CONFIG_BACKLIGHT_ATMEL_PWM=m
+CONFIG_BACKLIGHT_PWM=m
 CONFIG_SOUND=m
 CONFIG_SOUND_PRIME=m
 # CONFIG_HID_SUPPORT is not set
@@ -123,7 +122,6 @@ CONFIG_MMC=y
 CONFIG_MMC_ATMELMCI=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
-CONFIG_LEDS_ATMEL_PWM=m
 CONFIG_LEDS_GPIO=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_TIMER=y
@@ -132,6 +130,8 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_AT32AP700X=y
 CONFIG_DMADEVICES=y
+CONFIG_PWM=y
+CONFIG_PWM_ATMEL=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set