changed Makefile and profiles, added patches for kernel 2.6.24

(stable-branch of Openmoko)


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13613 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 81 insertions, 0 deletions

diff --git a/target/linux/s3c24xx/patches-2.6.24/1148-fix-backlight-disable-on-zero-intensity.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1148-fix-backlight-disable-on-zero-intensity.patch.patch
new file mode 100644
index 0000000000..d3e1a5136d
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.24/1148-fix-backlight-disable-on-zero-intensity.patch.patch
@@ -0,0 +1,81 @@
+From c9d44c8b43d29dd500c1dd711e490bdcd47f2830 Mon Sep 17 00:00:00 2001
+From: Andy Green <andy@openmoko.com>
+Date: Tue, 13 May 2008 18:53:40 +0100
+Subject: [PATCH] fix-backlight-disable-on-zero-intensity.patch
+
+It's never right to put 0 intensity into LEDOUT according to datasheet
+But having a floor at intensity 2 means backlight isn't properly off
+when "dimmed".  So change to intensity 0 --> disable backlight.
+
+Signed-off-by: Andy Green <andy@openmoko.com>
+---
+ drivers/i2c/chips/pcf50633.c |   34 +++++++++++++++++++++-------------
+ 1 files changed, 21 insertions(+), 13 deletions(-)
+
+diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
+index dc4ea0a..205f4e3 100644
+--- a/drivers/i2c/chips/pcf50633.c
++++ b/drivers/i2c/chips/pcf50633.c
+@@ -1458,6 +1458,9 @@ static int pcf50633bl_get_intensity(struct backlight_device *bd)
+ 	struct pcf50633_data *pcf = bl_get_data(bd);
+ 	int intensity = reg_read(pcf, PCF50633_REG_LEDOUT);
+ 
++	if (!(reg_read(pcf, PCF50633_REG_LEDOUT) & 1))
++		intensity = 0;
++
+ 	return intensity & 0x3f;
+ }
+ 
+@@ -1466,31 +1469,36 @@ static int pcf50633bl_set_intensity(struct backlight_device *bd)
+ 	struct pcf50633_data *pcf = bl_get_data(bd);
+ 	int intensity = bd->props.brightness;
+ 	int old_intensity = reg_read(pcf, PCF50633_REG_LEDOUT);
+-	u_int8_t ledena = 2;
+ 	int ret;
+ 
+-	if (bd->props.power != FB_BLANK_UNBLANK)
+-		intensity = 0;
+-	if (bd->props.fb_blank != FB_BLANK_UNBLANK)
++	if (!(reg_read(pcf, PCF50633_REG_LEDOUT) & 1))
++		old_intensity = 0;
++
++	if ((bd->props.power != FB_BLANK_UNBLANK) ||
++	    (bd->props.fb_blank != FB_BLANK_UNBLANK))
+ 		intensity = 0;
+ 
+-	/* The PCF50633 cannot handle LEDOUT = 0 (datasheet p60)
++	/*
++	 * The PCF50633 cannot handle LEDOUT = 0 (datasheet p60)
+ 	 * if seen, you have to re-enable the LED unit
++	 * we treat intensity 0 as disable
+ 	 */
+ 
+-	if (intensity != 0 && old_intensity == 0) {
+-		ledena = reg_read(pcf, PCF50633_REG_LEDENA);
+-		reg_write(pcf, PCF50633_REG_LEDENA, 0x00);
++	if (intensity && !old_intensity) {
++		ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDENA, 0x01, 0x00);
++		if (ret)
++			return ret;
+ 	}
+ 
+ 	if (!intensity) /* illegal to set LEDOUT to 0 */
+-		ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f, 2);
+-	else
++		ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDENA, 0x01, 0x00);
++	else {
+ 		ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f,
+ 			       intensity);
+-
+-	if (intensity != 0 && old_intensity == 0)
+-		reg_write(pcf, PCF50633_REG_LEDENA, ledena);
++		if (ret)
++			return ret;
++		ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDENA, 0x01, 0x01);
++	}
+ 
+ 	return ret;
+ }
+-- 
+1.5.6.5
+