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[ARM] 5042/1: magician: request GPIOs for pda_power
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Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Philipp Zabel authored and Russell King committed Jul 9, 2008
1 parent 6a566fb commit ff27920
Showing 1 changed file with 41 additions and 0 deletions.
41 changes: 41 additions & 0 deletions arch/arm/mach-pxa/magician.c
Original file line number Diff line number Diff line change
Expand Up @@ -511,6 +511,37 @@ static struct platform_device pasic3 = {
* External power
*/

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;
}

static int magician_is_ac_online(void)
{
return gpio_get_value(EGPIO_MAGICIAN_CABLE_STATE_AC);
Expand All @@ -527,14 +558,24 @@ static void magician_set_charge(int 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);
}

static char *magician_supplicants[] = {
"ds2760-battery.0", "backup-battery"
};

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),
};
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