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Date: Thu, 29 May 2014 01:20:07 +0200
From: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Nicolas Ferre <nicolas.ferre@...el.com>,
Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
Haavard Skinnemoen <hskinnemoen@...il.com>,
Hans-Christian Egtvedt <egtvedt@...fundet.no>,
Bryan Wu <cooloney@...il.com>,
Jingoo Han <jg1.han@...sung.com>, linux-leds@...r.kernel.org,
linux-pwm@...r.kernel.org, linux-fbdev@...r.kernel.org,
Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Subject: [PATCHv2 04/15] ARM: at91: sam9263ek: use generic leds_pwm driver
Switch to the generic leds_pwm driver instead of leds-atmel-pwm.
Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
---
arch/arm/mach-at91/board-sam9263ek.c | 55 ++++++++++++++++++++++++++++++------
1 file changed, 47 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index cd2726ee5add..fc446097f410 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -32,6 +32,8 @@
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/leds.h>
+#include <linux/pwm.h>
+#include <linux/leds_pwm.h>
#include <video/atmel_lcdc.h>
@@ -369,21 +371,47 @@ static struct gpio_led ek_leds[] = {
.name = "ds3",
.gpio = AT91_PIN_PB7,
.default_trigger = "heartbeat",
+ },
+#if !IS_ENABLED(CONFIG_LEDS_PWM)
+ {
+ .name = "ds1",
+ .gpio = AT91_PIN_PB8,
+ .active_low = 1,
+ .default_trigger = "none",
}
+#endif
};
/*
* PWM Leds
*/
-static struct gpio_led ek_pwm_led[] = {
- /* For now only DS1 is PWM-driven (by pwm1) */
+static struct pwm_lookup pwm_lookup[] = {
+ PWM_LOOKUP("at91sam9rl-pwm", 1, "leds_pwm", "ds1",
+ 5000, PWM_POLARITY_INVERSED),
+};
+
+#if IS_ENABLED(CONFIG_LEDS_PWM)
+static struct led_pwm pwm_leds[] = {
{
- .name = "ds1",
- .gpio = 1, /* is PWM channel number */
- .active_low = 1,
- .default_trigger = "none",
- }
+ .name = "ds1",
+ .max_brightness = 255,
+ },
+};
+
+static struct led_pwm_platform_data pwm_data = {
+ .num_leds = ARRAY_SIZE(pwm_leds),
+ .leds = pwm_leds,
+};
+
+static struct platform_device leds_pwm = {
+ .name = "leds_pwm",
+ .id = -1,
+ .dev = {
+ .platform_data = &pwm_data,
+ },
};
+#endif
+
/*
* CAN
@@ -403,6 +431,12 @@ static struct at91_can_data ek_can_data = {
.transceiver_switch = sam9263ek_transceiver_switch,
};
+static struct platform_device *devices[] __initdata = {
+#if IS_ENABLED(CONFIG_LEDS_PWM)
+ &leds_pwm,
+#endif
+};
+
static void __init ek_board_init(void)
{
/* Serial */
@@ -437,9 +471,14 @@ static void __init ek_board_init(void)
at91_add_device_ac97(&ek_ac97_data);
/* LEDs */
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
- at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
+ pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
+#if IS_ENABLED(CONFIG_LEDS_PWM)
+ at91_add_device_pwm(1 << AT91_PWM1);
+#endif
/* CAN */
at91_add_device_can(&ek_can_data);
+ /* Other platform devices */
+ platform_add_devices(devices, ARRAY_SIZE(devices));
}
MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
--
1.9.1
--
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