mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-18 02:04:05 +08:00
ab8500: Add devicetree support for charger
This patch adds device tree support for ab8500-charger driver Signed-off-by: Rajanikanth H.V <rajanikanth.hv@stericsson.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
This commit is contained in:
Rajanikanth H.V
Anton Vorontsov
parent
bd9e8ab2d5
commit
4aef72dbb2
@ -36,6 +36,20 @@ ab8500-btemp : : vtvout : Battery Temperature
|
||||
: BTEMP_LOW_MEDIUM : : BtempLow < Btemp < BtempMedium,if battery temperature is between -10 and 0°C
|
||||
: BTEMP_MEDIUM_HIGH : : BtempMedium < Btemp < BtempHigh,if battery temperature is between 0°C and“MaxTemp
|
||||
: BTEMP_HIGH : : Btemp > BtempHigh, if battery temperature is higher than “MaxTemp
|
||||
ab8500-charger : : vddadc : Charger interface
|
||||
: MAIN_CH_UNPLUG_DET : : main charger unplug detection management (not in 8505)
|
||||
: MAIN_CHARGE_PLUG_DET : : main charger plug detection management (not in 8505)
|
||||
: MAIN_EXT_CH_NOT_OK : : main charger not OK
|
||||
: MAIN_CH_TH_PROT_R : : Die temp is above main charger
|
||||
: MAIN_CH_TH_PROT_F : : Die temp is below main charger
|
||||
: VBUS_DET_F : : VBUS falling detected
|
||||
: VBUS_DET_R : : VBUS rising detected
|
||||
: USB_LINK_STATUS : : USB link status has changed
|
||||
: USB_CH_TH_PROT_R : : Die temp is above usb charger
|
||||
: USB_CH_TH_PROT_F : : Die temp is below usb charger
|
||||
: USB_CHARGER_NOT_OKR : : allowed USB charger not ok detection
|
||||
: VBUS_OVV : : Overvoltage on Vbus ball detected (USB charge is stopped)
|
||||
: CH_WD_EXP : : Charger watchdog detected
|
||||
ab8500-gpadc : HW_CONV_END : vddadc : Analogue to Digital Converter
|
||||
SW_CONV_END : :
|
||||
ab8500-gpio : : : GPIO Controller
|
||||
|
||||
@ -0,0 +1,25 @@
|
||||
=== AB8500 Charger Driver ===
|
||||
|
||||
Required Properties:
|
||||
- compatible = Shall be "stericsson,ab8500-charger"
|
||||
- battery = Shall be battery specific information
|
||||
Example:
|
||||
ab8500_charger {
|
||||
compatible = "stericsson,ab8500-charger";
|
||||
battery = <&ab8500_battery>;
|
||||
};
|
||||
|
||||
- vddadc-supply: Supply for USB and Main charger
|
||||
Example:
|
||||
ab8500-charger {
|
||||
vddadc-supply = <&ab8500_ldo_tvout_reg>;
|
||||
}
|
||||
- autopower_cfg:
|
||||
Boolean value depicting the presence of 'automatic poweron after powerloss'
|
||||
Example:
|
||||
ab8500-charger {
|
||||
autopower_cfg;
|
||||
};
|
||||
|
||||
For information on battery specific node, Ref:
|
||||
Documentation/devicetree/bindings/power_supply/ab8500/fg.txt
|
||||
@ -367,6 +367,12 @@
|
||||
battery = <&ab8500_battery>;
|
||||
};
|
||||
|
||||
ab8500_charger {
|
||||
compatible = "stericsson,ab8500-charger";
|
||||
battery = <&ab8500_battery>;
|
||||
vddadc-supply = <&ab8500_ldo_tvout_reg>;
|
||||
};
|
||||
|
||||
ab8500_usb {
|
||||
compatible = "stericsson,ab8500-usb";
|
||||
interrupts = < 90 0x4
|
||||
|
||||
@ -1041,8 +1041,13 @@ static struct mfd_cell __devinitdata abx500_common_devs[] = {
|
||||
static struct mfd_cell __devinitdata ab8500_bm_devs[] = {
|
||||
{
|
||||
.name = "ab8500-charger",
|
||||
.of_compatible = "stericsson,ab8500-charger",
|
||||
.num_resources = ARRAY_SIZE(ab8500_charger_resources),
|
||||
.resources = ab8500_charger_resources,
|
||||
#ifndef CONFIG_OF
|
||||
.platform_data = &ab8500_bm_data,
|
||||
.pdata_size = sizeof(ab8500_bm_data),
|
||||
#endif
|
||||
},
|
||||
{
|
||||
.name = "ab8500-btemp",
|
||||
|
||||
@ -23,6 +23,8 @@
|
||||
#include <linux/err.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/kobject.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/mfd/core.h>
|
||||
#include <linux/mfd/abx500/ab8500.h>
|
||||
#include <linux/mfd/abx500.h>
|
||||
#include <linux/mfd/abx500/ab8500-bm.h>
|
||||
@ -181,9 +183,9 @@ struct ab8500_charger_usb_state {
|
||||
* @vbat Battery voltage
|
||||
* @old_vbat Previously measured battery voltage
|
||||
* @autopower Indicate if we should have automatic pwron after pwrloss
|
||||
* @autopower_cfg platform specific power config support for "pwron after pwrloss"
|
||||
* @parent: Pointer to the struct ab8500
|
||||
* @gpadc: Pointer to the struct gpadc
|
||||
* @pdata: Pointer to the abx500_charger platform data
|
||||
* @bat: Pointer to the abx500_bm platform data
|
||||
* @flags: Structure for information about events triggered
|
||||
* @usb_state: Structure for usb stack information
|
||||
@ -218,9 +220,9 @@ struct ab8500_charger {
|
||||
int vbat;
|
||||
int old_vbat;
|
||||
bool autopower;
|
||||
bool autopower_cfg;
|
||||
struct ab8500 *parent;
|
||||
struct ab8500_gpadc *gpadc;
|
||||
struct abx500_bmdevs_plat_data *pdata;
|
||||
struct abx500_bm_data *bat;
|
||||
struct ab8500_charger_event_flags flags;
|
||||
struct ab8500_charger_usb_state usb_state;
|
||||
@ -322,7 +324,7 @@ static void ab8500_power_loss_handling(struct ab8500_charger *di)
|
||||
static void ab8500_power_supply_changed(struct ab8500_charger *di,
|
||||
struct power_supply *psy)
|
||||
{
|
||||
if (di->pdata->autopower_cfg) {
|
||||
if (di->autopower_cfg) {
|
||||
if (!di->usb.charger_connected &&
|
||||
!di->ac.charger_connected &&
|
||||
di->autopower) {
|
||||
@ -2526,25 +2528,45 @@ static int __devexit ab8500_charger_remove(struct platform_device *pdev)
|
||||
power_supply_unregister(&di->usb_chg.psy);
|
||||
power_supply_unregister(&di->ac_chg.psy);
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
kfree(di);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static char *supply_interface[] = {
|
||||
"ab8500_chargalg",
|
||||
"ab8500_fg",
|
||||
"ab8500_btemp",
|
||||
};
|
||||
|
||||
static int __devinit ab8500_charger_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct abx500_bmdevs_plat_data *plat_data = pdev->dev.platform_data;
|
||||
struct device_node *np = pdev->dev.of_node;
|
||||
struct ab8500_charger *di;
|
||||
int irq, i, charger_status, ret = 0;
|
||||
|
||||
if (!plat_data) {
|
||||
dev_err(&pdev->dev, "No platform data\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
di = kzalloc(sizeof(*di), GFP_KERNEL);
|
||||
if (!di)
|
||||
di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
|
||||
if (!di) {
|
||||
dev_err(&pdev->dev, "%s no mem for ab8500_charger\n", __func__);
|
||||
return -ENOMEM;
|
||||
}
|
||||
di->bat = pdev->mfd_cell->platform_data;
|
||||
if (!di->bat) {
|
||||
if (np) {
|
||||
ret = bmdevs_of_probe(&pdev->dev, np, &di->bat);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev,
|
||||
"failed to get battery information\n");
|
||||
return ret;
|
||||
}
|
||||
di->autopower_cfg = of_property_read_bool(np, "autopower_cfg");
|
||||
} else {
|
||||
dev_err(&pdev->dev, "missing dt node for ab8500_charger\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
} else {
|
||||
dev_info(&pdev->dev, "falling back to legacy platform data\n");
|
||||
di->autopower_cfg = false;
|
||||
}
|
||||
|
||||
/* get parent data */
|
||||
di->dev = &pdev->dev;
|
||||
@ -2554,14 +2576,6 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
|
||||
/* initialize lock */
|
||||
spin_lock_init(&di->usb_state.usb_lock);
|
||||
|
||||
/* get charger specific platform data */
|
||||
di->pdata = plat_data;
|
||||
if (!di->pdata) {
|
||||
dev_err(di->dev, "no charger platform data supplied\n");
|
||||
ret = -EINVAL;
|
||||
goto free_device_info;
|
||||
}
|
||||
|
||||
di->autopower = false;
|
||||
|
||||
/* AC supply */
|
||||
@ -2571,8 +2585,8 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
|
||||
di->ac_chg.psy.properties = ab8500_charger_ac_props;
|
||||
di->ac_chg.psy.num_properties = ARRAY_SIZE(ab8500_charger_ac_props);
|
||||
di->ac_chg.psy.get_property = ab8500_charger_ac_get_property;
|
||||
di->ac_chg.psy.supplied_to = di->pdata->supplied_to;
|
||||
di->ac_chg.psy.num_supplicants = di->pdata->num_supplicants;
|
||||
di->ac_chg.psy.supplied_to = supply_interface;
|
||||
di->ac_chg.psy.num_supplicants = ARRAY_SIZE(supply_interface),
|
||||
/* ux500_charger sub-class */
|
||||
di->ac_chg.ops.enable = &ab8500_charger_ac_en;
|
||||
di->ac_chg.ops.kick_wd = &ab8500_charger_watchdog_kick;
|
||||
@ -2589,8 +2603,8 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
|
||||
di->usb_chg.psy.properties = ab8500_charger_usb_props;
|
||||
di->usb_chg.psy.num_properties = ARRAY_SIZE(ab8500_charger_usb_props);
|
||||
di->usb_chg.psy.get_property = ab8500_charger_usb_get_property;
|
||||
di->usb_chg.psy.supplied_to = di->pdata->supplied_to;
|
||||
di->usb_chg.psy.num_supplicants = di->pdata->num_supplicants;
|
||||
di->usb_chg.psy.supplied_to = supply_interface;
|
||||
di->usb_chg.psy.num_supplicants = ARRAY_SIZE(supply_interface),
|
||||
/* ux500_charger sub-class */
|
||||
di->usb_chg.ops.enable = &ab8500_charger_usb_en;
|
||||
di->usb_chg.ops.kick_wd = &ab8500_charger_watchdog_kick;
|
||||
@ -2606,8 +2620,7 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
|
||||
create_singlethread_workqueue("ab8500_charger_wq");
|
||||
if (di->charger_wq == NULL) {
|
||||
dev_err(di->dev, "failed to create work queue\n");
|
||||
ret = -ENOMEM;
|
||||
goto free_device_info;
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Init work for HW failure check */
|
||||
@ -2749,12 +2762,14 @@ free_regulator:
|
||||
regulator_put(di->regu);
|
||||
free_charger_wq:
|
||||
destroy_workqueue(di->charger_wq);
|
||||
free_device_info:
|
||||
kfree(di);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct of_device_id ab8500_charger_match[] = {
|
||||
{ .compatible = "stericsson,ab8500-charger", },
|
||||
{ },
|
||||
};
|
||||
|
||||
static struct platform_driver ab8500_charger_driver = {
|
||||
.probe = ab8500_charger_probe,
|
||||
.remove = __devexit_p(ab8500_charger_remove),
|
||||
@ -2763,6 +2778,7 @@ static struct platform_driver ab8500_charger_driver = {
|
||||
.driver = {
|
||||
.name = "ab8500-charger",
|
||||
.owner = THIS_MODULE,
|
||||
.of_match_table = ab8500_charger_match,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user