Commit c764583f authored by Paul Burton's avatar Paul Burton Committed by Ralf Baechle
Browse files

MIPS: SEAD3: Use register-bit-led driver via DT for LEDs 



Probe a driver for the PLED & FLED LEDs found on the SEAD3 board using
the register-bit-led driver via device tree, rather than a custom driver
via platform code. Enable support for the register-bit-led driver & its
prerequisite syscon in sead3_defconfig.

Signed-off-by: default avatarPaul Burton <paul.burton@imgtec.com>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14054/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 3aefc655

arch/mips/boot/dts/mti/sead3.dts

+103 −0
Original line number Diff line number Diff line
@@ -93,6 +93,109 @@ 
		};

	};



	system-controller@1f000200 {

		compatible = "mti,sead3-cpld", "syscon", "simple-mfd";

		reg = <0x1f000200 0x300>;



		led@10.0 {

			compatible = "register-bit-led";

			offset = <0x10>;

			mask = <0x1>;

			label = "pled0";

		};

		led@10.1 {

			compatible = "register-bit-led";

			offset = <0x10>;

			mask = <0x2>;

			label = "pled1";

		};

		led@10.2 {

			compatible = "register-bit-led";

			offset = <0x10>;

			mask = <0x4>;

			label = "pled2";

		};

		led@10.3 {

			compatible = "register-bit-led";

			offset = <0x10>;

			mask = <0x8>;

			label = "pled3";

		};

		led@10.4 {

			compatible = "register-bit-led";

			offset = <0x10>;

			mask = <0x10>;

			label = "pled4";

		};

		led@10.5 {

			compatible = "register-bit-led";

			offset = <0x10>;

			mask = <0x20>;

			label = "pled5";

		};

		led@10.6 {

			compatible = "register-bit-led";

			offset = <0x10>;

			mask = <0x40>;

			label = "pled6";

		};

		led@10.7 {

			compatible = "register-bit-led";

			offset = <0x10>;

			mask = <0x80>;

			label = "pled7";

		};



		led@18.0 {

			compatible = "register-bit-led";

			offset = <0x18>;

			mask = <0x1>;

			label = "fled0";

		};

		led@18.1 {

			compatible = "register-bit-led";

			offset = <0x18>;

			mask = <0x2>;

			label = "fled1";

		};

		led@18.2 {

			compatible = "register-bit-led";

			offset = <0x18>;

			mask = <0x4>;

			label = "fled2";

		};

		led@18.3 {

			compatible = "register-bit-led";

			offset = <0x18>;

			mask = <0x8>;

			label = "fled3";

		};

		led@18.4 {

			compatible = "register-bit-led";

			offset = <0x18>;

			mask = <0x10>;

			label = "fled4";

		};

		led@18.5 {

			compatible = "register-bit-led";

			offset = <0x18>;

			mask = <0x20>;

			label = "fled5";

		};

		led@18.6 {

			compatible = "register-bit-led";

			offset = <0x18>;

			mask = <0x40>;

			label = "fled6";

		};

		led@18.7 {

			compatible = "register-bit-led";

			offset = <0x18>;

			mask = <0x80>;

			label = "fled7";

		};

	};



	/* UART connected to FTDI & miniUSB socket */

	uart0: uart@1f000900 {

		compatible = "ns16550a";

arch/mips/configs/sead3_defconfig

+2 −0
Original line number Diff line number Diff line
@@ -81,6 +81,7 @@ CONFIG_I2C_CHARDEV=y 
# CONFIG_I2C_HELPER_AUTO is not set

CONFIG_SPI=y

CONFIG_SENSORS_ADT7475=y

CONFIG_MFD_SYSCON=y

CONFIG_BACKLIGHT_LCD_SUPPORT=y

CONFIG_LCD_CLASS_DEVICE=y

CONFIG_BACKLIGHT_CLASS_DEVICE=y
@@ -95,6 +96,7 @@ CONFIG_MMC_DEBUG=y 
CONFIG_MMC_SPI=y

CONFIG_NEW_LEDS=y

CONFIG_LEDS_CLASS=y

CONFIG_LEDS_SYSCON=y

CONFIG_LEDS_TRIGGERS=y

CONFIG_LEDS_TRIGGER_HEARTBEAT=y

CONFIG_RTC_CLASS=y

arch/mips/mti-sead3/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -13,7 +13,6 @@ obj-y += sead3-display.o 
obj-y += sead3-dtshim.o

obj-y += sead3-init.o

obj-y += sead3-int.o

obj-y += sead3-platform.o

obj-y += sead3-reset.o

obj-y += sead3-setup.o

obj-y += sead3-time.o

arch/mips/mti-sead3/sead3-platform.c

deleted100644 → 0
+0 −91
Original line number Diff line number Diff line 
/*

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 *

 * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.

 */

#include <linux/dma-mapping.h>

#include <linux/init.h>

#include <linux/leds.h>

#include <linux/platform_device.h>



#define LEDFLAGS(bits, shift)		\

	((bits << 8) | (shift << 8))



#define LEDBITS(id, shift, bits)	\

	.name = id #shift,		\

	.flags = LEDFLAGS(bits, shift)



static struct led_info led_data_info[] = {

	{ LEDBITS("bit", 0, 1) },

	{ LEDBITS("bit", 1, 1) },

	{ LEDBITS("bit", 2, 1) },

	{ LEDBITS("bit", 3, 1) },

	{ LEDBITS("bit", 4, 1) },

	{ LEDBITS("bit", 5, 1) },

	{ LEDBITS("bit", 6, 1) },

	{ LEDBITS("bit", 7, 1) },

	{ LEDBITS("all", 0, 8) },

};



static struct led_platform_data led_data = {

	.num_leds	= ARRAY_SIZE(led_data_info),

	.leds		= led_data_info

};



static struct resource pled_resources[] = {

	{

		.start	= 0x1f000210,

		.end	= 0x1f000217,

		.flags	= IORESOURCE_MEM

	}

};



static struct platform_device pled_device = {

	.name			= "sead3::pled",

	.id			= 0,

	.dev			= {

		.platform_data	= &led_data,

	},

	.num_resources		= ARRAY_SIZE(pled_resources),

	.resource		= pled_resources

};





static struct resource fled_resources[] = {

	{

		.start			= 0x1f000218,

		.end			= 0x1f00021f,

		.flags			= IORESOURCE_MEM

	}

};



static struct platform_device fled_device = {

	.name			= "sead3::fled",

	.id			= 0,

	.dev			= {

		.platform_data	= &led_data,

	},

	.num_resources		= ARRAY_SIZE(fled_resources),

	.resource		= fled_resources

};



static struct platform_device sead3_led_device = {

        .name   = "sead3-led",

        .id     = -1,

};



static struct platform_device *sead3_platform_devices[] __initdata = {

	&pled_device,

	&fled_device,

	&sead3_led_device,

};



static int __init sead3_platforms_device_init(void)

{

	return platform_add_devices(sead3_platform_devices,

				    ARRAY_SIZE(sead3_platform_devices));

}



device_initcall(sead3_platforms_device_init);

CRA Git | Maintained and supported by SUSTech CRA and CCSE