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Subject[PATCH 12/16] avr32: favr-32: use generic pwm_bl driver
Date
Switch to the generic pwm_bl driver instead of atmel-pwm-bl.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
arch/avr32/boards/favr-32/setup.c | 49 +++++++++++++++++++++++-------------
arch/avr32/configs/favr-32_defconfig | 6 ++---
2 files changed, 34 insertions(+), 21 deletions(-)

diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c
index 1f121497b517..391f026705a5 100644
--- 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 +232,37 @@ 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),
};

-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),
+ .pwm_period_ns = 5000,
+ .max_brightness = 255,
+ .dft_brightness = 255,
+ .lth_brightness = 50,
+ .pwm_active_low = true,
+};
+
+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 +352,7 @@ 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 07bed3f7eb5e..b3eb67dc05ac 100644
--- 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
--
1.8.3.2


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