[PATCH v2 09/19] MIPS: SEAD3: Use register-bit-led driver via DT for LEDs

Paul Burton
2016-08-26T14:17:41Z

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: Paul Burton <paul.burton@imgtec.com>
---

Changes in v2: None

arch/mips/boot/dts/mti/sead3.dts | 103 +++++++++++++++++++++++++++++++++++
arch/mips/configs/sead3_defconfig | 2 +
arch/mips/mti-sead3/Makefile | 1 -
arch/mips/mti-sead3/sead3-platform.c | 91 -------------------------------
4 files changed, 105 insertions(+), 92 deletions(-)
delete mode 100644 arch/mips/mti-sead3/sead3-platform.c

diff --git a/arch/mips/boot/dts/mti/sead3.dts b/arch/mips/boot/dts/mti/sead3.dts
index 8844cc0..0159450 100644
--- a/arch/mips/boot/dts/mti/sead3.dts
+++ b/arch/mips/boot/dts/mti/sead3.dts
@@ -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";
diff --git a/arch/mips/configs/sead3_defconfig b/arch/mips/configs/sead3_defconfig
index 23cce81..e1c6582 100644
--- a/arch/mips/configs/sead3_defconfig
+++ b/arch/mips/configs/sead3_defconfig
@@ -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
diff --git a/arch/mips/mti-sead3/Makefile b/arch/mips/mti-sead3/Makefile
index a58b6d9..04ea002 100644
--- a/arch/mips/mti-sead3/Makefile
+++ b/arch/mips/mti-sead3/Makefile
@@ -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
diff --git a/arch/mips/mti-sead3/sead3-platform.c b/arch/mips/mti-sead3/sead3-platform.c
deleted file mode 100644
index 5c1f42a..0000000
--- a/arch/mips/mti-sead3/sead3-platform.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * 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);
--
2.9.3