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[ARM] pxa/magician: Enable bq24022 regulator for gpio_vbus and pda_power 

With this patch, the bq24022 battery charger is controlled by the USB
gadget framework (via gpio_vbus) when connected to USB.

To compile, this patch depends on the "regulator: Allow init data to be
supplied for bq24022" patch (queued for next in the regulator tree) to
add the init_data field to struct bq24022_mach_info.
It also depends on the "add optional OTG transceiver and voltage
regulator support to pda_power" patch (queued for next in the power
supply tree) to enable charging when connected to the AC charger.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
This commit is contained in:
Philipp Zabel 2009-01-31 12:13:57 +01:00 committed by Eric Miao
parent 20bec8ab14
commit eb650b9ed0
3 changed files with 48 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/configs/magician_defconfig
View File

@ -1183,7 +1183,11 @@ CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_DRV_SA1100=y
# CONFIG_RTC_DRV_PXA is not set
# CONFIG_DMADEVICES is not set
# CONFIG_REGULATOR is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_BQ24022=y
# CONFIG_UIO is not set
# CONFIG_STAGING is not set

4
arch/arm/mach-pxa/include/mach/magician.h
View File

@ -27,7 +27,7 @@
#define GPIO22_MAGICIAN_VIBRA_EN 22
#define GPIO26_MAGICIAN_GSM_POWER 26
#define GPIO27_MAGICIAN_USBC_PUEN 27
#define GPIO30_MAGICIAN_nCHARGE_EN 30
#define GPIO30_MAGICIAN_BQ24022_nCHARGE_EN 30
#define GPIO37_MAGICIAN_KEY_HANGUP 37
#define GPIO38_MAGICIAN_KEY_CONTACTS 38
#define GPIO40_MAGICIAN_GSM_OUT2 40
@ -98,7 +98,7 @@
#define EGPIO_MAGICIAN_UNKNOWN_WAVEDEV_DLL MAGICIAN_EGPIO(2, 2)
#define EGPIO_MAGICIAN_FLASH_VPP MAGICIAN_EGPIO(2, 3)
#define EGPIO_MAGICIAN_BL_POWER2 MAGICIAN_EGPIO(2, 4)
#define EGPIO_MAGICIAN_CHARGE_EN MAGICIAN_EGPIO(2, 5)
#define EGPIO_MAGICIAN_BQ24022_ISET2 MAGICIAN_EGPIO(2, 5)
#define EGPIO_MAGICIAN_GSM_POWER MAGICIAN_EGPIO(2, 7)
/* input */

84
arch/arm/mach-pxa/magician.c
View File

@ -25,6 +25,8 @@
#include <linux/mtd/physmap.h>
#include <linux/pda_power.h>
#include <linux/pwm_backlight.h>
#include <linux/regulator/bq24022.h>
#include <linux/regulator/machine.h>
#include <linux/usb/gpio_vbus.h>
#include <mach/hardware.h>
@ -553,33 +555,7 @@ static struct platform_device gpio_vbus = {
static int power_supply_init(struct device *dev)
{
int ret;
ret = gpio_request(EGPIO_MAGICIAN_CABLE_STATE_AC, "CABLE_STATE_AC");
if (ret)
goto err_cs_ac;
ret = gpio_request(EGPIO_MAGICIAN_CABLE_STATE_USB, "CABLE_STATE_USB");
if (ret)
goto err_cs_usb;
ret = gpio_request(EGPIO_MAGICIAN_CHARGE_EN, "CHARGE_EN");
if (ret)
goto err_chg_en;
ret = gpio_request(GPIO30_MAGICIAN_nCHARGE_EN, "nCHARGE_EN");
if (!ret)
ret = gpio_direction_output(GPIO30_MAGICIAN_nCHARGE_EN, 0);
if (ret)
goto err_nchg_en;
return 0;
err_nchg_en:
gpio_free(EGPIO_MAGICIAN_CHARGE_EN);
err_chg_en:
gpio_free(EGPIO_MAGICIAN_CABLE_STATE_USB);
err_cs_usb:
gpio_free(EGPIO_MAGICIAN_CABLE_STATE_AC);
err_cs_ac:
return ret;
return gpio_request(EGPIO_MAGICIAN_CABLE_STATE_AC, "CABLE_STATE_AC");
}
static int magician_is_ac_online(void)
@ -587,22 +563,8 @@ static int magician_is_ac_online(void)
return gpio_get_value(EGPIO_MAGICIAN_CABLE_STATE_AC);
}
static int magician_is_usb_online(void)
{
return gpio_get_value(EGPIO_MAGICIAN_CABLE_STATE_USB);
}
static void magician_set_charge(int flags)
{
gpio_set_value(GPIO30_MAGICIAN_nCHARGE_EN, !flags);
gpio_set_value(EGPIO_MAGICIAN_CHARGE_EN, flags);
}
static void power_supply_exit(struct device *dev)
{
gpio_free(GPIO30_MAGICIAN_nCHARGE_EN);
gpio_free(EGPIO_MAGICIAN_CHARGE_EN);
gpio_free(EGPIO_MAGICIAN_CABLE_STATE_USB);
gpio_free(EGPIO_MAGICIAN_CABLE_STATE_AC);
}
@ -613,8 +575,6 @@ static char *magician_supplicants[] = {
static struct pda_power_pdata power_supply_info = {
.init = power_supply_init,
.is_ac_online = magician_is_ac_online,
.is_usb_online = magician_is_usb_online,
.set_charge = magician_set_charge,
.exit = power_supply_exit,
.supplied_to = magician_supplicants,
.num_supplicants = ARRAY_SIZE(magician_supplicants),
@ -647,6 +607,43 @@ static struct platform_device power_supply = {
.num_resources = ARRAY_SIZE(power_supply_resources),
};
/*
* Battery charger
*/
static struct regulator_consumer_supply bq24022_consumers[] = {
{
.dev = &gpio_vbus.dev,
.supply = "vbus_draw",
},
{
.dev = &power_supply.dev,
.supply = "ac_draw",
},
};
static struct regulator_init_data bq24022_init_data = {
.constraints = {
.max_uA = 500000,
.valid_ops_mask = REGULATOR_CHANGE_CURRENT,
},
.num_consumer_supplies = ARRAY_SIZE(bq24022_consumers),
.consumer_supplies = bq24022_consumers,
};
static struct bq24022_mach_info bq24022_info = {
.gpio_nce = GPIO30_MAGICIAN_BQ24022_nCHARGE_EN,
.gpio_iset2 = EGPIO_MAGICIAN_BQ24022_ISET2,
.init_data = &bq24022_init_data,
};
static struct platform_device bq24022 = {
.name = "bq24022",
.id = -1,
.dev = {
.platform_data = &bq24022_info,
},
};
/*
* MMC/SD
@ -757,6 +754,7 @@ static struct platform_device *devices[] __initdata = {
&egpio,
&backlight,
&pasic3,
&bq24022,
&gpio_vbus,
&power_supply,
&strataflash,