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|
#
# Patch managed by http://www.holgerschurig.de/patcher.html
#
--- linux-2.6.16/arch/arm/mach-pxa/ezx.c~ezx-backlight-r0.patch
+++ linux-2.6.16/arch/arm/mach-pxa/ezx.c
@@ -344,17 +344,12 @@
.pxafb_lcd_power = &pxafb_lcd_power,
};
-
-/* backlight for lcd */
-
-static struct resource ezx_backlight_resources[] = {
-};
-
-static struct platform_device ezx_backlight_device = {
- .name = "ezx-lcd-backlight",
+/*
+ * EZX LCD Backlight
+ */
+static struct platform_device ezxbacklight_device = {
+ .name = "ezx-bl",
.id = -1,
- .resource = ezx_backlight_resources,
- .num_resources = ARRAY_SIZE(ezx_backlight_resources),
};
#ifdef CONFIG_PXA_EZX_E680
--- linux-2.6.16/drivers/video/backlight/Kconfig~ezx-backlight-r0.patch
+++ linux-2.6.16/drivers/video/backlight/Kconfig
@@ -58,3 +58,12 @@
If you have a HP Jornada 680, say y to enable the
backlight driver.
+config BACKLIGHT_EZX
+ tristate "Motorola EXZ Backlight Driver (A780/E680/E680i)"
+ depends on BACKLIGHT_DEVICE && PXA_EZX
+ default y
+ help
+ If you have a Motorola A780 or E680(i), say y to enable the
+ backlight driver.
+
+
--- linux-2.6.16/drivers/video/backlight/Makefile~ezx-backlight-r0.patch
+++ linux-2.6.16/drivers/video/backlight/Makefile
@@ -5,3 +5,5 @@
obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o
obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o
obj-$(CONFIG_SHARP_LOCOMO) += locomolcd.o
+obj-$(CONFIG_BACKLIGHT_EZX) += ezx_bl.o
+
--- /dev/null
+++ linux-2.6.16/drivers/video/backlight/ezx_bl.c
@@ -0,0 +1,148 @@
+/*
+ * Backlight Driver for Motorola A780 and E680(i) GSM Phones.
+ *
+ * Copyright 2006 Vanille Media
+ *
+ * Author: Michael Lauer <mickey@Vanille.de>
+ *
+ * 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/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/ezx.h>
+
+#define EZX_MAX_INTENSITY 50
+#define EZX_DEFAULT_INTENSITY 25
+
+static spinlock_t bl_lock = SPIN_LOCK_UNLOCKED;
+static struct backlight_properties ezxbl_data;
+static struct backlight_device *ezx_backlight_device;
+static int current_intensity;
+
+static int ezx_send_intensity(struct backlight_device *bd)
+{
+ unsigned long flags;
+ int intensity = bd->props->brightness;
+
+ printk( KERN_DEBUG "ezx_set_intensity to %d", intensity );
+
+ if (bd->props->power != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props->fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+
+ spin_lock_irqsave(&bl_lock, flags);
+
+ PWM_CTRL0 = 2; /* pre-scaler */
+ PWM_PWDUTY0 = intensity; /* duty cycle */
+ PWM_PERVAL0 = 49; /* period */
+
+ if (intensity) {
+ //pxa_set_cken(CKEN0_PWM0, 1);
+ //FIXME: Set PWM0 GPIO as output
+ } else {
+ //pxa_set_cken(CKEN0_PWM0, 0);
+ //FIXME: Set PWM0 GPIO as input
+ }
+
+ spin_unlock_irqrestore(&bl_lock, flags);
+ current_intensity = intensity;
+ return 0;
+}
+
+static int ezx_get_intensity(struct backlight_device *bd)
+{
+ return current_intensity;
+}
+
+static int ezx_set_intensity(struct backlight_device *bd)
+{
+ return ezx_send_intensity(ezx_backlight_device);
+}
+
+#ifdef CONFIG_PM
+static int ezx_bl_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ //set suspend flag
+ ezx_set_intensity(ezx_backlight_device);
+ return 0;
+}
+
+static int ezx_bl_resume(struct platform_device *pdev)
+{
+ // set resume flag
+ ezx_set_intensity(ezx_backlight_device);
+ return 0;
+}
+#else
+#define ezx_bl_suspend NULL
+#define ezx_bl_resume NULL
+#endif
+
+static struct backlight_properties ezx_bl_data = {
+ .owner = THIS_MODULE,
+ .get_brightness = ezx_get_intensity,
+ .max_brightness = EZX_MAX_INTENSITY,
+ .update_status = ezx_set_intensity,
+};
+
+static int __init ezx_bl_probe(struct platform_device *pdev)
+{
+ ezx_backlight_device = backlight_device_register ("ezx-bl",
+ NULL, &ezx_bl_data);
+ if (IS_ERR (ezx_backlight_device))
+ return PTR_ERR (ezx_backlight_device);
+
+ //ezx_bl_data.requested_brightness = EZX_DEFAULT_INTENSITY;
+ //ezx_bl_data.requested_power = FB_BLANK_UNBLANK;
+ //ezx_set_intensity(ezx_backlight_device, ezx_bl_data.requested_brightness);
+
+ printk("EZX Backlight Driver Initialized.\n");
+ return 0;
+}
+
+static int ezx_bl_remove(struct platform_device *pdev)
+{
+ backlight_device_unregister(ezx_backlight_device);
+
+ printk("EZX Backlight Driver Unloaded.\n");
+ return 0;
+}
+
+static struct platform_driver ezx_bl_driver = {
+ .probe = ezx_bl_probe,
+ .remove = ezx_bl_remove,
+ .suspend = ezx_bl_suspend,
+ .resume = ezx_bl_resume,
+ .driver = {
+ .name = "ezx-bl",
+ },
+};
+
+static int __init ezx_bl_init(void)
+{
+ return platform_driver_register(&ezx_bl_driver);
+}
+
+static void __exit ezx_bl_exit(void)
+{
+ platform_driver_unregister(&ezx_bl_driver);
+}
+
+module_init(ezx_bl_init);
+module_exit(ezx_bl_exit);
+
+MODULE_AUTHOR("Michael Lauer <mickey@Vanille.de>");
+MODULE_DESCRIPTION("Backlight Driver for Motorola A780|E680(i)");
+MODULE_LICENSE("GPL");
|
