Loongson: YeeLoong: add platform specific drivers

 arch/mips/loongson/Kconfig |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

arch/mips/loongson/Kconfig +7 -0

index 3df1967..a34dfcc 100644
@@ -83,3 +83,23 @@ config LOONGSON_UART_BASE
 	bool
 	default y
 	depends on EARLY_PRINTK || SERIAL_8250
+
+#
+# Loongson Platform Specific Drivers
+#
+
+menuconfig LOONGSON_PLATFORM_DEVICES
+	bool "Loongson Platform Drivers"

Quoted 22 lines · Wu Zhangin

 arch/mips/loongson/Kconfig |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

arch/mips/loongson/Kconfig +11 -0

index 3df1967..a34dfcc 100644
@@ -83,3 +83,23 @@ config LOONGSON_UART_BASE
 	bool
 	default y
 	depends on EARLY_PRINTK || SERIAL_8250
+
+#
+# Loongson Platform Specific Drivers
+#
+
+menuconfig LOONGSON_PLATFORM_DEVICES
+	bool "Loongson Platform Drivers"
+	default y
+	help
+	  Say Y here to get to see options for device drivers of various
+	  loongson platforms, including vendor-specific laptop/pc extension

arch/mips/loongson/Kconfig config LOONGSON_UART_BASE · line 102

Quoted 6 lines

arch/mips/loongson/Kconfig +6 -0

+	  drivers.  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
+
+if LOONGSON_PLATFORM_DEVICES
+# Put platform specific stuff here

Useless comment. LOONGSON_PLATFORM_DEVICES already says exactly that.

This patch add a new LEMOTE_YEELOONG2F option, a yeeloong_laptop/ directory for the coming yeeloong specific support, and for the ec_kb3310b belongs to yeeloong, so, move it to yeeloong_laptop/ too.

Signed-off-by Wu Zhangjin <[email protected]>

Quoted 5 lines · Wu Zhangin

This patch add a new LEMOTE_YEELOONG2F option, a yeeloong_laptop/ directory for the coming yeeloong specific support, and for the ec_kb3310b belongs to yeeloong, so, move it to yeeloong_laptop/ too.

Signed-off-by Wu Zhangjin <[email protected]>

I suggest you fold this patch into patch 2/8.

Quoted 8 lines · Ralf Baechle

Quoted 5 lines · Wu Zhangin

This patch add a new LEMOTE_YEELOONG2F option, a yeeloong_laptop/ directory for the coming yeeloong specific support, and for the ec_kb3310b belongs to yeeloong, so, move it to yeeloong_laptop/ too.

Signed-off-by Wu Zhangjin <[email protected]>

Quoted 1 line

I suggest you fold this patch into patch 2/8.

Sorry, do you mean merging the following two? for this patch itself is 2/8?

[PATCH v6 1/8] Loongson: Lemote-2F: add platform specific submenu [PATCH v6 2/8] Loongson: YeeLoong: add platform specific option

From: Wu Zhangjin <[email protected]>

This patch adds YeeLoong Backlight Driver, which provides standard interface for user-space applications to control the brightness of the backlight.

Signed-off-by Wu Zhangjin <[email protected]>

Quoted 6 lines · Wu Zhangin

From: Wu Zhangjin <[email protected]>

This patch adds YeeLoong Backlight Driver, which provides standard interface for user-space applications to control the brightness of the backlight.

Quoted 1 line

Signed-off-by Wu Zhangjin <[email protected]>

You split old, big driver into several individual drivers - good.

Now we can actually move things to their rightf place and for a backlight drivers that should be drivers/video/backlight/. Convert it to a platform driver.

Quoted 8 lines · Ralf Baechle

Quoted 6 lines · Wu Zhangin

From: Wu Zhangjin <[email protected]>

This patch adds YeeLoong Backlight Driver, which provides standard interface for user-space applications to control the brightness of the backlight.

Quoted 7 lines

Quoted 1 line

Signed-off-by Wu Zhangjin <[email protected]>

You split old, big driver into several individual drivers - good.

Now we can actually move things to their rightf place and for a backlight drivers that should be drivers/video/backlight/. Convert it to a platform driver.

Okay, but for these drivers need the ec_kb3310b.h, so, we also need to move it from arch/mips/loongson/lemote-2f/yeeloong_laptop/ec_kb3310b.h to arch/mips/include/asm/mach-loongson/ec_kb3310b.h.

and seems some subsystem have no maintainer, such as the hwmon driver:

HARDWARE MONITORING

L:      [email protected]
W:      http://www.lm-sensors.org/
S:      Orphan
F:      drivers/hwmon/

So, who should I send this patch to?

Quoted 17 lines · Wu Zhangjin

Quoted 15 lines · Ralf Baechle

Quoted 7 lines · Wu Zhangin

From: Wu Zhangjin <[email protected]>

This patch adds YeeLoong Backlight Driver, which provides standard interface for user-space applications to control the brightness of the backlight.

Signed-off-by Wu Zhangjin <[email protected]>

You split old, big driver into several individual drivers - good.

Now we can actually move things to their rightf place and for a backlight drivers that should be drivers/video/backlight/. Convert it to a platform driver.

Quoted 5 lines

Okay, but for these drivers need the ec_kb3310b.h, so, we also need to move it from arch/mips/loongson/lemote-2f/yeeloong_laptop/ec_kb3310b.h to arch/mips/include/asm/mach-loongson/ec_kb3310b.h.

and seems some subsystem have no maintainer, such as the hwmon driver:

Which is true and sometimes a bit of a nuisance but one we can live with.

Quoted 7 lines

HARDWARE MONITORING

L:      [email protected]
W:      http://www.lm-sensors.org/
S:      Orphan
F:      drivers/hwmon/

So, who should I send this patch to?

I suggest you add Andrew Morton <[email protected]> and linux-kernel to the To: list.

This time, I like the folks did under drivers/platform/x86/ ;) which will be better to maintain. for all of these drivers are really only YeeLoong platform specific ;)

Quoted 1 line

any established cathegory.

Get it, thanks ;)

I will do it tomorrow, Good night!

From: Wu Zhangjin <[email protected]>

This patch adds APM_EMULATION based Battery Driver, which provides standard interface for user-space applications to manage the battery.

From: Wu Zhangjin <[email protected]>

This patch adds hwmon driver for managing the temperature of battery, cpu and controlling the fan.

From: Wu Zhangjin <[email protected]>

This patch adds Video Output Driver, which provides standard interface to turn on/off the video output of LCD, CRT.

From: Wu Zhangjin <[email protected]>

This patch adds Suspend Driver, which will suspend the YeeLoong Platform specific devices.

Acked-by Pavel Machek <[email protected]>

Signed-off-by Wu Zhangjin <[email protected]>

---
 .../loongson/lemote-2f/yeeloong_laptop/Kconfig     |    8 +
 .../loongson/lemote-2f/yeeloong_laptop/Makefile    |    1 +
 .../lemote-2f/yeeloong_laptop/yl_suspend.c         |  135 ++++++++++++++++++++
 3 files changed, 144 insertions(+), 0 deletions(-)
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c

arch/mips/loongson/lemote-2f/yeeloong_laptop/Kconfig +8 -0

index 7cf6071..f1211b4 100644
@@ -45,4 +45,12 @@ config YEELOONG_VO
 	  This option adds Video Output Driver, which provides standard
 	  interface to turn on/off the video output of LCD, CRT.
 
+config YEELOONG_SUSPEND
+	tristate "Suspend Driver"
+	depends on YEELOONG_VO && LOONGSON_SUSPEND
+	default y
+	help
+	  This option adds Suspend Driver, which will suspend the YeeLoong
+	  Platform specific devices.
+
 endif

arch/mips/loongson/lemote-2f/yeeloong_laptop/Makefile +1 -0

index aa01140..29f8050 100644
@@ -6,3 +6,4 @@ obj-$(CONFIG_YEELOONG_BACKLIGHT) += yl_backlight.o
 obj-$(CONFIG_YEELOONG_BATTERY) += yl_battery.o
 obj-$(CONFIG_YEELOONG_HWMON) += yl_hwmon.o
 obj-$(CONFIG_YEELOONG_VO) += yl_vo.o
+obj-$(CONFIG_YEELOONG_SUSPEND) += yl_suspend.o

arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c new file +135 -0

new file mode 100644
index 0000000..9f53a69
@@ -0,0 +1,135 @@
+/*
+ * YeeLoong Platform Specific Suspend Driver
+ *
+ *  Copyright (C) 2009 Lemote Inc.
+ *  Author: Wu Zhangjin <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <asm/bootinfo.h>
+
+#include "ec_kb3310b.h"
+
+MODULE_AUTHOR("Wu Zhangjin <[email protected]>");
+MODULE_DESCRIPTION("YeeLoong laptop suspend driver");
+MODULE_LICENSE("GPL");
+
+static struct platform_device *yeeloong_pdev;
+
+static void usb_ports_set(int status)
+{
+	status = !!status;
+
+	ec_write(REG_USB0_FLAG, status);
+	ec_write(REG_USB1_FLAG, status);
+	ec_write(REG_USB2_FLAG, status);
+}
+
+static int yeeloong_suspend(struct platform_device *pdev,
+		pm_message_t state)
+{
+	pr_info("yeeloong specific suspend\n");
+
+	/* Turn off LCD */
+	yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_OFF);
+	/* Turn off CRT */
+	yeeloong_crt_vo_set(BIT_CRT_DETECT_UNPLUG);
+	/* Poweroff three usb ports */
+	usb_ports_set(BIT_USB_FLAG_OFF);
+
+	return 0;
+}
+
+static int yeeloong_resume(struct platform_device *pdev)
+{
+	pr_info("yeeloong specific resume\n");
+
+	/* Resume the status of lcd & crt */
+	yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_ON);
+	yeeloong_crt_vo_set(BIT_CRT_DETECT_PLUG);
+
+	/* Poweron three usb ports */
+	usb_ports_set(BIT_USB_FLAG_ON);
+
+	return 0;
+}
+
+static struct platform_driver platform_driver = {
+	.driver = {
+		   .name = "yeeloong-laptop",
+		   .owner = THIS_MODULE,
+		   },
+	.suspend = yeeloong_suspend,
+	.resume = yeeloong_resume,
+};
+
+static ssize_t yeeloong_pdev_name_show(struct device *dev,
+				       struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "yeeloong laptop\n");
+}
+
+static struct device_attribute dev_attr_yeeloong_pdev_name =
+__ATTR(name, S_IRUGO, yeeloong_pdev_name_show, NULL);
+
+static int __init yeeloong_suspend_init(void)
+{
+	int ret;
+
+	if (mips_machtype != MACH_LEMOTE_YL2F89) {
+		pr_err("This Driver is only for YeeLoong laptop\n");
+		return -EFAULT;
+	}
+
+	/* Register platform stuff */
+	ret = platform_driver_register(&platform_driver);
+	if (ret)
+		return ret;
+
+	yeeloong_pdev = platform_device_alloc("yeeloong-laptop", -1);
+	if (!yeeloong_pdev) {
+		ret = -ENOMEM;
+		platform_driver_unregister(&platform_driver);
+		return ret;
+	}
+
+	ret = platform_device_add(yeeloong_pdev);
+	if (ret) {
+		platform_device_put(yeeloong_pdev);
+		return ret;
+	}
+
+	if (IS_ERR(yeeloong_pdev)) {
+		ret = PTR_ERR(yeeloong_pdev);
+		yeeloong_pdev = NULL;
+		pr_err("Fail to register platform device\n");
+		return ret;
+	}
+
+	ret = device_create_file(&yeeloong_pdev->dev,
+				 &dev_attr_yeeloong_pdev_name);
+	if (ret) {
+		pr_err("Fail to create sysfs device attributes\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void __exit yeeloong_suspend_exit(void)
+{
+	if (yeeloong_pdev) {
+		platform_device_unregister(yeeloong_pdev);
+		yeeloong_pdev = NULL;
+		platform_driver_unregister(&platform_driver);
+	}
+}
+
+module_init(yeeloong_suspend_init);
+module_exit(yeeloong_suspend_exit);

Quoted 7 lines · Wu Zhangin

From: Wu Zhangjin <[email protected]>

This patch adds Suspend Driver, which will suspend the YeeLoong Platform specific devices.

Acked-by Pavel Machek <[email protected]>

Signed-off-by Wu Zhangjin <[email protected]>

I'm still not sure how useful it is to build it as a module, but otherwise

Quoted 7 lines · Wu Zhangin

From: Wu Zhangjin <[email protected]>

This patch adds Suspend Driver, which will suspend the YeeLoong Platform specific devices.

Acked-by Pavel Machek <[email protected]>

Signed-off-by Wu Zhangjin <[email protected]>

I'm still not sure how useful it is to build it as a module, but otherwise

From: Wu Zhangjin <[email protected]>

This patch adds Suspend Driver, which will suspend the YeeLoong Platform specific devices.

Acked-by Pavel Machek <[email protected]>

Signed-off-by Wu Zhangjin <[email protected]>

---
 .../loongson/lemote-2f/yeeloong_laptop/Kconfig     |    8 +
 .../loongson/lemote-2f/yeeloong_laptop/Makefile    |    1 +
 .../lemote-2f/yeeloong_laptop/yl_suspend.c         |  135 ++++++++++++++++++++
 3 files changed, 144 insertions(+), 0 deletions(-)
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c

arch/mips/loongson/lemote-2f/yeeloong_laptop/Kconfig +8 -0

index 7cf6071..f1211b4 100644
@@ -45,4 +45,12 @@ config YEELOONG_VO
 	  This option adds Video Output Driver, which provides standard
 	  interface to turn on/off the video output of LCD, CRT.
 
+config YEELOONG_SUSPEND
+	tristate "Suspend Driver"
+	depends on YEELOONG_VO && LOONGSON_SUSPEND
+	default y
+	help
+	  This option adds Suspend Driver, which will suspend the YeeLoong
+	  Platform specific devices.
+
 endif

arch/mips/loongson/lemote-2f/yeeloong_laptop/Makefile +1 -0

index aa01140..29f8050 100644
@@ -6,3 +6,4 @@ obj-$(CONFIG_YEELOONG_BACKLIGHT) += yl_backlight.o
 obj-$(CONFIG_YEELOONG_BATTERY) += yl_battery.o
 obj-$(CONFIG_YEELOONG_HWMON) += yl_hwmon.o
 obj-$(CONFIG_YEELOONG_VO) += yl_vo.o
+obj-$(CONFIG_YEELOONG_SUSPEND) += yl_suspend.o

arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c new file +135 -0

new file mode 100644
index 0000000..9f53a69
@@ -0,0 +1,135 @@
+/*
+ * YeeLoong Platform Specific Suspend Driver
+ *
+ *  Copyright (C) 2009 Lemote Inc.
+ *  Author: Wu Zhangjin <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <asm/bootinfo.h>
+
+#include "ec_kb3310b.h"
+
+MODULE_AUTHOR("Wu Zhangjin <[email protected]>");
+MODULE_DESCRIPTION("YeeLoong laptop suspend driver");
+MODULE_LICENSE("GPL");
+
+static struct platform_device *yeeloong_pdev;
+
+static void usb_ports_set(int status)
+{
+	status = !!status;
+
+	ec_write(REG_USB0_FLAG, status);
+	ec_write(REG_USB1_FLAG, status);
+	ec_write(REG_USB2_FLAG, status);
+}
+
+static int yeeloong_suspend(struct platform_device *pdev,
+		pm_message_t state)
+{
+	pr_info("yeeloong specific suspend\n");
+
+	/* Turn off LCD */
+	yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_OFF);
+	/* Turn off CRT */
+	yeeloong_crt_vo_set(BIT_CRT_DETECT_UNPLUG);
+	/* Poweroff three usb ports */
+	usb_ports_set(BIT_USB_FLAG_OFF);
+
+	return 0;
+}
+
+static int yeeloong_resume(struct platform_device *pdev)
+{
+	pr_info("yeeloong specific resume\n");
+
+	/* Resume the status of lcd & crt */
+	yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_ON);
+	yeeloong_crt_vo_set(BIT_CRT_DETECT_PLUG);
+
+	/* Poweron three usb ports */
+	usb_ports_set(BIT_USB_FLAG_ON);
+
+	return 0;
+}
+
+static struct platform_driver platform_driver = {
+	.driver = {
+		   .name = "yeeloong-laptop",
+		   .owner = THIS_MODULE,
+		   },
+	.suspend = yeeloong_suspend,
+	.resume = yeeloong_resume,
+};
+
+static ssize_t yeeloong_pdev_name_show(struct device *dev,
+				       struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "yeeloong laptop\n");
+}
+
+static struct device_attribute dev_attr_yeeloong_pdev_name =
+__ATTR(name, S_IRUGO, yeeloong_pdev_name_show, NULL);
+
+static int __init yeeloong_suspend_init(void)
+{
+	int ret;
+
+	if (mips_machtype != MACH_LEMOTE_YL2F89) {
+		pr_err("This Driver is only for YeeLoong laptop\n");
+		return -EFAULT;
+	}
+
+	/* Register platform stuff */
+	ret = platform_driver_register(&platform_driver);
+	if (ret)
+		return ret;
+
+	yeeloong_pdev = platform_device_alloc("yeeloong-laptop", -1);
+	if (!yeeloong_pdev) {
+		ret = -ENOMEM;
+		platform_driver_unregister(&platform_driver);
+		return ret;
+	}
+
+	ret = platform_device_add(yeeloong_pdev);
+	if (ret) {
+		platform_device_put(yeeloong_pdev);
+		return ret;
+	}
+
+	if (IS_ERR(yeeloong_pdev)) {
+		ret = PTR_ERR(yeeloong_pdev);
+		yeeloong_pdev = NULL;
+		pr_err("Fail to register platform device\n");
+		return ret;
+	}
+
+	ret = device_create_file(&yeeloong_pdev->dev,
+				 &dev_attr_yeeloong_pdev_name);
+	if (ret) {
+		pr_err("Fail to create sysfs device attributes\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void __exit yeeloong_suspend_exit(void)
+{
+	if (yeeloong_pdev) {
+		platform_device_unregister(yeeloong_pdev);
+		yeeloong_pdev = NULL;
+		platform_driver_unregister(&platform_driver);
+	}
+}
+
+module_init(yeeloong_suspend_init);
+module_exit(yeeloong_suspend_exit);

From: Wu Zhangin <[email protected]>
Date: Tue, 1 Dec 2009 19:11:55 +0800
To: Ralf Baechle <[email protected]>
Cc: [email protected], [email protected],
Pavel Machek <[email protected]>, "Rafael J. Wysocki" <[email protected]>, [email protected],
Wu Zhangjin <[email protected]>
Subject: [PATCH v6 7/8] Loongson: YeeLoong: add suspend driver

From: Wu Zhangjin <[email protected]>

This patch adds Suspend Driver, which will suspend the YeeLoong Platform specific devices.

Acked-by Pavel Machek <[email protected]>

Signed-off-by Wu Zhangjin <[email protected]>

---
 .../loongson/lemote-2f/yeeloong_laptop/Kconfig     |    8 +
 .../loongson/lemote-2f/yeeloong_laptop/Makefile    |    1 +
 .../lemote-2f/yeeloong_laptop/yl_suspend.c         |  135 ++++++++++++++++++++
 3 files changed, 144 insertions(+), 0 deletions(-)
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c

arch/mips/loongson/lemote-2f/yeeloong_laptop/Kconfig +8 -0

index 7cf6071..f1211b4 100644
@@ -45,4 +45,12 @@ config YEELOONG_VO
 	  This option adds Video Output Driver, which provides standard
 	  interface to turn on/off the video output of LCD, CRT.
 
+config YEELOONG_SUSPEND
+	tristate "Suspend Driver"
+	depends on YEELOONG_VO && LOONGSON_SUSPEND
+	default y
+	help
+	  This option adds Suspend Driver, which will suspend the YeeLoong
+	  Platform specific devices.
+
 endif

arch/mips/loongson/lemote-2f/yeeloong_laptop/Makefile +1 -0

index aa01140..29f8050 100644
@@ -6,3 +6,4 @@ obj-$(CONFIG_YEELOONG_BACKLIGHT) += yl_backlight.o
 obj-$(CONFIG_YEELOONG_BATTERY) += yl_battery.o
 obj-$(CONFIG_YEELOONG_HWMON) += yl_hwmon.o
 obj-$(CONFIG_YEELOONG_VO) += yl_vo.o
+obj-$(CONFIG_YEELOONG_SUSPEND) += yl_suspend.o

arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c new file +78 -0

new file mode 100644
index 0000000..9f53a69
@@ -0,0 +1,135 @@
+/*
+ * YeeLoong Platform Specific Suspend Driver
+ *
+ *  Copyright (C) 2009 Lemote Inc.
+ *  Author: Wu Zhangjin <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <asm/bootinfo.h>
+
+#include "ec_kb3310b.h"
+
+MODULE_AUTHOR("Wu Zhangjin <[email protected]>");
+MODULE_DESCRIPTION("YeeLoong laptop suspend driver");
+MODULE_LICENSE("GPL");
+
+static struct platform_device *yeeloong_pdev;
+
+static void usb_ports_set(int status)
+{
+	status = !!status;
+
+	ec_write(REG_USB0_FLAG, status);
+	ec_write(REG_USB1_FLAG, status);
+	ec_write(REG_USB2_FLAG, status);
+}
+
+static int yeeloong_suspend(struct platform_device *pdev,
+		pm_message_t state)
+{
+	pr_info("yeeloong specific suspend\n");
+
+	/* Turn off LCD */
+	yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_OFF);
+	/* Turn off CRT */
+	yeeloong_crt_vo_set(BIT_CRT_DETECT_UNPLUG);
+	/* Poweroff three usb ports */
+	usb_ports_set(BIT_USB_FLAG_OFF);
+
+	return 0;
+}
+
+static int yeeloong_resume(struct platform_device *pdev)
+{
+	pr_info("yeeloong specific resume\n");
+
+	/* Resume the status of lcd & crt */
+	yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_ON);
+	yeeloong_crt_vo_set(BIT_CRT_DETECT_PLUG);
+
+	/* Poweron three usb ports */
+	usb_ports_set(BIT_USB_FLAG_ON);
+
+	return 0;
+}
+
+static struct platform_driver platform_driver = {
+	.driver = {
+		   .name = "yeeloong-laptop",
+		   .owner = THIS_MODULE,
+		   },
+	.suspend = yeeloong_suspend,
+	.resume = yeeloong_resume,
+};
+
+static ssize_t yeeloong_pdev_name_show(struct device *dev,
+				       struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "yeeloong laptop\n");
+}
+
+static struct device_attribute dev_attr_yeeloong_pdev_name =

arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c new file +47 -0

+
+	/* Register platform stuff */
+	ret = platform_driver_register(&platform_driver);
+	if (ret)
+		return ret;
+
+	yeeloong_pdev = platform_device_alloc("yeeloong-laptop", -1);
+	if (!yeeloong_pdev) {
+		ret = -ENOMEM;
+		platform_driver_unregister(&platform_driver);
+		return ret;
+	}
+
+	ret = platform_device_add(yeeloong_pdev);
+	if (ret) {
+		platform_device_put(yeeloong_pdev);
+		return ret;
+	}
+
+	if (IS_ERR(yeeloong_pdev)) {
+		ret = PTR_ERR(yeeloong_pdev);
+		yeeloong_pdev = NULL;
+		pr_err("Fail to register platform device\n");
+		return ret;
+	}
+
+	ret = device_create_file(&yeeloong_pdev->dev,
+				 &dev_attr_yeeloong_pdev_name);
+	if (ret) {
+		pr_err("Fail to create sysfs device attributes\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void __exit yeeloong_suspend_exit(void)
+{
+	if (yeeloong_pdev) {
+		platform_device_unregister(yeeloong_pdev);
+		yeeloong_pdev = NULL;
+		platform_driver_unregister(&platform_driver);
+	}
+}
+
+module_init(yeeloong_suspend_init);
+module_exit(yeeloong_suspend_exit);

Signature · 1 line

1.6.2.1

From: Wu Zhangin <[email protected]>
Date: Tue, 1 Dec 2009 19:11:55 +0800
To: Ralf Baechle <[email protected]>
Cc: [email protected], [email protected],
Pavel Machek <[email protected]>, "Rafael J. Wysocki" <[email protected]>, [email protected],
Wu Zhangjin <[email protected]>
Subject: [PATCH v6 7/8] Loongson: YeeLoong: add suspend driver

From: Wu Zhangjin <[email protected]>

This patch adds Suspend Driver, which will suspend the YeeLoong Platform specific devices.

Acked-by Pavel Machek <[email protected]>

Signed-off-by Wu Zhangjin <[email protected]>

---
 .../loongson/lemote-2f/yeeloong_laptop/Kconfig     |    8 +
 .../loongson/lemote-2f/yeeloong_laptop/Makefile    |    1 +
 .../lemote-2f/yeeloong_laptop/yl_suspend.c         |  135 ++++++++++++++++++++
 3 files changed, 144 insertions(+), 0 deletions(-)
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c

arch/mips/loongson/lemote-2f/yeeloong_laptop/Kconfig +8 -0

index 7cf6071..f1211b4 100644
@@ -45,4 +45,12 @@ config YEELOONG_VO
 	  This option adds Video Output Driver, which provides standard
 	  interface to turn on/off the video output of LCD, CRT.
 
+config YEELOONG_SUSPEND
+	tristate "Suspend Driver"
+	depends on YEELOONG_VO && LOONGSON_SUSPEND
+	default y
+	help
+	  This option adds Suspend Driver, which will suspend the YeeLoong
+	  Platform specific devices.
+
 endif

arch/mips/loongson/lemote-2f/yeeloong_laptop/Makefile +1 -0

index aa01140..29f8050 100644
@@ -6,3 +6,4 @@ obj-$(CONFIG_YEELOONG_BACKLIGHT) += yl_backlight.o
 obj-$(CONFIG_YEELOONG_BATTERY) += yl_battery.o
 obj-$(CONFIG_YEELOONG_HWMON) += yl_hwmon.o
 obj-$(CONFIG_YEELOONG_VO) += yl_vo.o
+obj-$(CONFIG_YEELOONG_SUSPEND) += yl_suspend.o

arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c new file +78 -0

new file mode 100644
index 0000000..9f53a69
@@ -0,0 +1,135 @@
+/*
+ * YeeLoong Platform Specific Suspend Driver
+ *
+ *  Copyright (C) 2009 Lemote Inc.
+ *  Author: Wu Zhangjin <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <asm/bootinfo.h>
+
+#include "ec_kb3310b.h"
+
+MODULE_AUTHOR("Wu Zhangjin <[email protected]>");
+MODULE_DESCRIPTION("YeeLoong laptop suspend driver");
+MODULE_LICENSE("GPL");
+
+static struct platform_device *yeeloong_pdev;
+
+static void usb_ports_set(int status)
+{
+	status = !!status;
+
+	ec_write(REG_USB0_FLAG, status);
+	ec_write(REG_USB1_FLAG, status);
+	ec_write(REG_USB2_FLAG, status);
+}
+
+static int yeeloong_suspend(struct platform_device *pdev,
+		pm_message_t state)
+{
+	pr_info("yeeloong specific suspend\n");
+
+	/* Turn off LCD */
+	yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_OFF);
+	/* Turn off CRT */
+	yeeloong_crt_vo_set(BIT_CRT_DETECT_UNPLUG);
+	/* Poweroff three usb ports */
+	usb_ports_set(BIT_USB_FLAG_OFF);
+
+	return 0;
+}
+
+static int yeeloong_resume(struct platform_device *pdev)
+{
+	pr_info("yeeloong specific resume\n");
+
+	/* Resume the status of lcd & crt */
+	yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_ON);
+	yeeloong_crt_vo_set(BIT_CRT_DETECT_PLUG);
+
+	/* Poweron three usb ports */
+	usb_ports_set(BIT_USB_FLAG_ON);
+
+	return 0;
+}
+
+static struct platform_driver platform_driver = {
+	.driver = {
+		   .name = "yeeloong-laptop",
+		   .owner = THIS_MODULE,
+		   },
+	.suspend = yeeloong_suspend,
+	.resume = yeeloong_resume,
+};
+
+static ssize_t yeeloong_pdev_name_show(struct device *dev,
+				       struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "yeeloong laptop\n");
+}
+
+static struct device_attribute dev_attr_yeeloong_pdev_name =

arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c new file +47 -0

+
+	/* Register platform stuff */
+	ret = platform_driver_register(&platform_driver);
+	if (ret)
+		return ret;
+
+	yeeloong_pdev = platform_device_alloc("yeeloong-laptop", -1);
+	if (!yeeloong_pdev) {
+		ret = -ENOMEM;
+		platform_driver_unregister(&platform_driver);
+		return ret;
+	}
+
+	ret = platform_device_add(yeeloong_pdev);
+	if (ret) {
+		platform_device_put(yeeloong_pdev);
+		return ret;
+	}
+
+	if (IS_ERR(yeeloong_pdev)) {
+		ret = PTR_ERR(yeeloong_pdev);
+		yeeloong_pdev = NULL;
+		pr_err("Fail to register platform device\n");
+		return ret;
+	}
+
+	ret = device_create_file(&yeeloong_pdev->dev,
+				 &dev_attr_yeeloong_pdev_name);
+	if (ret) {
+		pr_err("Fail to create sysfs device attributes\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void __exit yeeloong_suspend_exit(void)
+{
+	if (yeeloong_pdev) {
+		platform_device_unregister(yeeloong_pdev);
+		yeeloong_pdev = NULL;
+		platform_driver_unregister(&platform_driver);
+	}
+}
+
+module_init(yeeloong_suspend_init);
+module_exit(yeeloong_suspend_exit);

Signature · 1 line

1.6.2.1

From: Wu Zhangjin <[email protected]>

This patch adds Hotkey Driver, which will do relative actions for The hotkey event and report the corresponding input keys to the user-space applications.

Quoted 5 lines · Wu Zhangin

From: Wu Zhangjin <[email protected]>

This patch adds Hotkey Driver, which will do relative actions for The hotkey event and report the corresponding input keys to the user-space applications.

This one also should become a platform driver. And is probably a candidate for drivers/input/keyboard.

Quoted 8 lines · Ralf Baechle

Quoted 5 lines · Wu Zhangin

From: Wu Zhangjin <[email protected]>

This patch adds Hotkey Driver, which will do relative actions for The hotkey event and report the corresponding input keys to the user-space applications.

Quoted 3 lines

This one also should become a platform driver. And is probably a candidate for drivers/input/keyboard.

Umm, it still mixes up bunch of stuff not directly related to input. I'd vote for drivers/platform/mips (since we have a few of kitchen-sink style drivers for x86-based laptops in drivers/platform/x86).

From: Wu Zhangjin <[email protected]>

This patchset adds platform specific drivers for YeeLoong netbook. including the backlight, battery, hwmon, video output, suspend and hotkey(input) drivers. These drivers provide standard interfaces to the user-space applications to manage the relative devices:

Modules Tools

- backlight
/sys/class/backlight/ kpowersave, gnome-power-manager
- battery
/proc/apm kpowersave, gnome-power-manager
- hwmon
/sys/class/hwmon/ lm-sensors, sensors-applet...
- video output
/sys/class/video_output ?
- suspend
/sys/power/state kpowersave, gnome-power-manager
- hotkey
/sys/class/input/ gnome-settings-daemon ?

To utilize the above interfaces, you are recommended to install the latest hal, dbus.

This v6 revision incorporates with the feedbacks from Ralf, Pavel Machek, Rafael J. Wysocki and Dmitry Torokhov.

Changes from the old v5 revision:

- Cleanup the "select" and "depend" of the options Replace some "select"s by "depend"s to avoid potential compiling errors.

- Cleanup the hotkey(input) driver
Merge several functions, Cleanup the comments, Use Switch...Case instead of the array.

- Fixup of the video output driver
Seems the video output subsystem doesn't handle the input value, we handle it outselves via !!od->request_state.

- Append the yl_ prefix to the file names
yl_ prefix is needed to distinguish it with the next patchset for lynloong pc platform drivers.

All changes have been tested again.

Best Regards,
Wu Zhangjin

Wu Zhangjin (8):
Loongson: Lemote-2F: add platform specific submenu
Loongson: YeeLoong: add platform specific option
Loongson: YeeLoong: add backlight driver
Loongson: YeeLoong: add battery driver
Loongson: YeeLoong: add hwmon driver
Loongson: YeeLoong: add video output driver
Loongson: YeeLoong: add suspend driver
Loongson: YeeLoong: add hotkey driver

 arch/mips/kernel/setup.c                           |    1 +
 arch/mips/loongson/Kconfig                         |   21 +
 arch/mips/loongson/lemote-2f/Makefile              |    7 +-
 arch/mips/loongson/lemote-2f/ec_kb3310b.c          |  130 ------
 arch/mips/loongson/lemote-2f/ec_kb3310b.h          |  188 --------
 arch/mips/loongson/lemote-2f/pm.c                  |    4 +-
 arch/mips/loongson/lemote-2f/reset.c               |    2 +-
 .../loongson/lemote-2f/yeeloong_laptop/Kconfig     |   65 +++
 .../loongson/lemote-2f/yeeloong_laptop/Makefile    |   10 +
 .../lemote-2f/yeeloong_laptop/ec_kb3310b.c         |  126 ++++++
 .../lemote-2f/yeeloong_laptop/ec_kb3310b.h         |  193 +++++++++
 .../lemote-2f/yeeloong_laptop/yl_backlight.c       |   93 ++++
 .../lemote-2f/yeeloong_laptop/yl_battery.c         |  127 ++++++
 .../loongson/lemote-2f/yeeloong_laptop/yl_hotkey.c |  452 ++++++++++++++++++++
 .../loongson/lemote-2f/yeeloong_laptop/yl_hwmon.c  |  239 +++++++++++
 .../lemote-2f/yeeloong_laptop/yl_suspend.c         |  135 ++++++
 .../loongson/lemote-2f/yeeloong_laptop/yl_vo.c     |  164 +++++++
 17 files changed, 1635 insertions(+), 322 deletions(-)
 delete mode 100644 arch/mips/loongson/lemote-2f/ec_kb3310b.c
 delete mode 100644 arch/mips/loongson/lemote-2f/ec_kb3310b.h
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/Kconfig
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/Makefile
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/ec_kb3310b.c
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/ec_kb3310b.h
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_backlight.c
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_battery.c
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_hotkey.c
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_hwmon.c
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_suspend.c
 create mode 100644 arch/mips/loongson/lemote-2f/yeeloong_laptop/yl_vo.c