MIPS: SEAD3: Use generic restart-poweroff driver

Remove the custom platform code to restart when instructed to power off,
instead relying upon the generic restart-poweroff driver probed via DT
to do the same thing.

Remove also the halt implementation, which is incorrect. The generic
MIPS version will hang the system as halt should.

Signed-off-by: Paul 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/14057/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/boot/dts/mti/sead3.dts b/arch/mips/boot/dts/mti/sead3.dts
index 047ff7a..32a5ab9 100644 (file)
--- a/arch/mips/boot/dts/mti/sead3.dts
+++ b/arch/mips/boot/dts/mti/sead3.dts
@@ -103,6 +103,10 @@
                        offset = <0x50>;
                        mask = <0x4d>;
                };
+
+               poweroff {
+                       compatible = "restart-poweroff";
+               };
        };
 
        system-controller@1f000200 {

diff --git a/arch/mips/configs/sead3_defconfig b/arch/mips/configs/sead3_defconfig
index 055af30..ab4c465 100644 (file)
--- 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_POWER_RESET=y
+CONFIG_POWER_RESET_RESTART=y
 CONFIG_POWER_RESET_SYSCON=y
 CONFIG_SENSORS_ADT7475=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y

diff --git a/arch/mips/mti-sead3/Makefile b/arch/mips/mti-sead3/Makefile
index 04ea002..ad722c8 100644 (file)
--- a/arch/mips/mti-sead3/Makefile
+++ b/arch/mips/mti-sead3/Makefile
@@ -13,6 +13,5 @@ obj-y += sead3-display.o
 obj-y += sead3-dtshim.o
 obj-y += sead3-init.o
 obj-y += sead3-int.o
-obj-y += sead3-reset.o
 obj-y += sead3-setup.o
 obj-y += sead3-time.o

diff --git a/arch/mips/mti-sead3/sead3-reset.c b/arch/mips/mti-sead3/sead3-reset.c
deleted file mode 100644 (file)
index 8f548f0..0000000
--- a/arch/mips/mti-sead3/sead3-reset.c
+++ /dev/null
@@ -1,31 +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/io.h>
-#include <linux/pm.h>
-
-#include <asm/reboot.h>
-
-#define SOFTRES_REG    0x1f000050
-#define GORESET                0x4d
-
-static void mips_machine_halt(void)
-{
-       unsigned int __iomem *softres_reg =
-               ioremap(SOFTRES_REG, sizeof(unsigned int));
-
-       __raw_writel(GORESET, softres_reg);
-}
-
-static int __init mips_reboot_setup(void)
-{
-       _machine_halt = mips_machine_halt;
-       pm_power_off = mips_machine_halt;
-
-       return 0;
-}
-arch_initcall(mips_reboot_setup);