korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-20 18:54:09 +08:00
Code Issues Packages Projects Releases Wiki Activity

gta02: Use pcf50633 backlight driver instead of platform backlight driver.

Browse Source 
Use the pcf50633 backlight driver instead of the platform backlight driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Lars-Peter Clausen 2010-05-12 02:44:34 +02:00 committed by Richard Purdie
parent f5bf403a9d
commit 67e67df8da
1 changed files with 9 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
arch/arm/mach-s3c2440/mach-gta02.c
View File

@ -49,7 +49,6 @@
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/backlight.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/pcf50633/core.h>
@ -57,6 +56,7 @@
#include <linux/mfd/pcf50633/adc.h>
#include <linux/mfd/pcf50633/gpio.h>
#include <linux/mfd/pcf50633/pmic.h>
#include <linux/mfd/pcf50633/backlight.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@ -254,6 +254,12 @@ static char *gta02_batteries[] = {
"battery",
};
static struct pcf50633_bl_platform_data gta02_backlight_data = {
.default_brightness = 0x3f,
.default_brightness_limit = 0,
.ramp_time = 5,
};
struct pcf50633_platform_data gta02_pcf_pdata = {
.resumers = {
[0] = PCF50633_INT1_USBINS |
@ -271,6 +277,8 @@ struct pcf50633_platform_data gta02_pcf_pdata = {
.charger_reference_current_ma = 1000,
.backlight_data = &gta02_backlight_data,
.reg_init_data = {
[PCF50633_REGULATOR_AUTO] = {
.constraints = {
@ -478,71 +486,6 @@ static struct s3c2410_udc_mach_info gta02_udc_cfg = {
};
static void gta02_bl_set_intensity(int intensity)
{
struct pcf50633 *pcf = gta02_pcf;
int old_intensity = pcf50633_reg_read(pcf, PCF50633_REG_LEDOUT);
/* We map 8-bit intensity to 6-bit intensity in hardware. */
intensity >>= 2;
/*
* This can happen during, eg, print of panic on blanked console,
* but we can't service i2c without interrupts active, so abort.
*/
if (in_atomic()) {
printk(KERN_ERR "gta02_bl_set_intensity called while atomic\n");
return;
}
old_intensity = pcf50633_reg_read(pcf, PCF50633_REG_LEDOUT);
if (intensity == old_intensity)
return;
/* We can't do this anywhere else. */
pcf50633_reg_write(pcf, PCF50633_REG_LEDDIM, 5);
if (!(pcf50633_reg_read(pcf, PCF50633_REG_LEDENA) & 3))
old_intensity = 0;
/*
* The PCF50633 cannot handle LEDOUT = 0 (datasheet p60)
* if seen, you have to re-enable the LED unit.
*/
if (!intensity || !old_intensity)
pcf50633_reg_write(pcf, PCF50633_REG_LEDENA, 0);
/* Illegal to set LEDOUT to 0. */
if (!intensity)
pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f, 2);
else
pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f,
intensity);
if (intensity)
pcf50633_reg_write(pcf, PCF50633_REG_LEDENA, 2);
}
static struct generic_bl_info gta02_bl_info = {
.name = "gta02-bl",
.max_intensity = 0xff,
.default_intensity = 0xff,
.set_bl_intensity = gta02_bl_set_intensity,
};
static struct platform_device gta02_bl_dev = {
.name = "generic-bl",
.id = 1,
.dev = {
.platform_data = &gta02_bl_info,
},
};
/* USB */
static struct s3c2410_hcd_info gta02_usb_info __initdata = {
.port[0] = {
@ -579,7 +522,6 @@ static struct platform_device *gta02_devices[] __initdata = {
/* These guys DO need to be children of PMU. */
static struct platform_device *gta02_devices_pmu_children[] = {
&gta02_bl_dev,
};