[PATCH] power: max8925 - Enable power change notifications

From: Philip Rakity
Date: Mon Aug 29 2011 - 12:32:36 EST



The power core infrastructure allow external power change
events to be passed to drivers what are listed in the
supplied_to call back field. Enable this feature by
allowing the supplied_to field to be passed to the driver.

This feature will enable drivers named in the supplied_to field that have a
external_power_changed callback to be notified when power
was been turned on or off.

Signed-off-by: Philip Rakity <prakity@xxxxxxxxxxx>
---
drivers/power/max8925_power.c | 5 +++++
include/linux/mfd/max8925.h | 2 ++
2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c
index fd32c08..29b5d2c 100644
--- a/drivers/power/max8925_power.c
+++ b/drivers/power/max8925_power.c
@@ -455,6 +455,8 @@ static __devinit int max8925_power_probe(struct platform_device *pdev)
info->ac.properties = max8925_ac_props;
info->ac.num_properties = ARRAY_SIZE(max8925_ac_props);
info->ac.get_property = max8925_ac_get_prop;
+ info->ac.supplied_to = pdata->supplied_to;
+ info->ac.num_supplicants = pdata->num_supplicants;
ret = power_supply_register(&pdev->dev, &info->ac);
if (ret)
goto out;
@@ -465,6 +467,9 @@ static __devinit int max8925_power_probe(struct platform_device *pdev)
info->usb.properties = max8925_usb_props;
info->usb.num_properties = ARRAY_SIZE(max8925_usb_props);
info->usb.get_property = max8925_usb_get_prop;
+ info->usb.supplied_to = pdata->supplied_to;
+ info->usb.num_supplicants = pdata->num_supplicants;
+
ret = power_supply_register(&pdev->dev, &info->usb);
if (ret)
goto out_usb;
diff --git a/include/linux/mfd/max8925.h b/include/linux/mfd/max8925.h
index e742e04..008f807 100644
--- a/include/linux/mfd/max8925.h
+++ b/include/linux/mfd/max8925.h
@@ -225,6 +225,8 @@ struct max8925_power_pdata {
unsigned fast_charge:3; /* charge current */
unsigned no_temp_support:1; /* set if no temperature detect */
unsigned no_insert_detect:1; /* set if no ac insert detect */
+ char **supplied_to;
+ int num_supplicants;
};

/*
--
1.7.6


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