lkml.org 
[lkml]   [2016]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/3] power: charger-manager: Replace deprecatd API of extcon
Date
This patch removes the deprecated notifier API of extcon framework and then use
the new extcon API[2] with the unique id[1] to indicate the each external
connector. Alter deprecated API as following:
- extcon_register_interest() -> extcon_register_notifier()
- extcon_unregister_interest() -> extcon_unregister_notifier()

And, extcon alters the name of USB charger connector in patch[3] as following:
- EXTCON_CHG_USB_SDP /* Standard Downstream Port */
- EXTCON_CHG_USB_DCP /* Dedicated Charging Port */
- EXTCON_CHG_USB_CDP /* Charging Downstream Port */
- EXTCON_CHG_USB_ACA /* Accessory Charger Adapter */

So, the name of external charger connector are changed as following:
- "USB" -> "SDP"
- "TA" -> "DCP"

[1] Commit 2a9de9c0f08d61
- ("extcon: Use the unique id for external connector instead of string)
[2] Commit 046050f6e623e4
- ("extcon: Update the prototype of extcon_register_notifier() with enum extcon
[3] Commit 11eecf910bd81d
- ("extcon: Modify the id and name of external connector")

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
.../bindings/power_supply/charger-manager.txt | 4 +--
drivers/power/charger-manager.c | 31 ++++++++++++++--------
include/linux/power/charger-manager.h | 4 +--
3 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/Documentation/devicetree/bindings/power_supply/charger-manager.txt b/Documentation/devicetree/bindings/power_supply/charger-manager.txt
index ec4fe9de3137..73193e380dc2 100644
--- a/Documentation/devicetree/bindings/power_supply/charger-manager.txt
+++ b/Documentation/devicetree/bindings/power_supply/charger-manager.txt
@@ -65,13 +65,13 @@ Example :
regulator@0 {
cm-regulator-name = "chg-reg";
cable@0 {
- cm-cable-name = "USB";
+ cm-cable-id = 5; /* EXTCON_CHG_USB_SDP */
cm-cable-extcon = "extcon-dev.0";
cm-cable-min = <475000>;
cm-cable-max = <500000>;
};
cable@1 {
- cm-cable-name = "TA";
+ cm-cable-id = 6; /* EXTCON_CHG_USB_DCP */
cm-cable-extcon = "extcon-dev.0";
cm-cable-min = <650000>;
cm-cable-max = <675000>;
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index e664ca7c0afd..ed63dc086eb6 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -1137,8 +1137,8 @@ static void charger_extcon_work(struct work_struct *work)
ret = regulator_set_current_limit(cable->charger->consumer,
cable->min_uA, cable->max_uA);
if (ret < 0) {
- pr_err("Cannot set current limit of %s (%s)\n",
- cable->charger->regulator_name, cable->name);
+ pr_err("Cannot set current limit of %s (%d)\n",
+ cable->charger->regulator_name, cable->id);
return;
}

@@ -1207,11 +1207,18 @@ static int charger_extcon_init(struct charger_manager *cm,
*/
INIT_WORK(&cable->wq, charger_extcon_work);
cable->nb.notifier_call = charger_extcon_notifier;
- ret = extcon_register_interest(&cable->extcon_dev,
- cable->extcon_name, cable->name, &cable->nb);
+
+ cable->extcon_dev = extcon_get_extcon_dev(cable->extcon_name);
+ if (IS_ERR(cable->extcon_dev)) {
+ pr_err("Cannot get extcon_dev for %s\n", cable->extcon_name);
+ return PTR_ERR(cable->extcon_dev);
+ }
+
+ ret = extcon_register_notifier(cable->extcon_dev, cable->id,
+ &cable->nb);
if (ret < 0) {
- pr_info("Cannot register extcon_dev for %s(cable: %s)\n",
- cable->extcon_name, cable->name);
+ pr_info("Cannot register extcon_dev for %s(cable: %d)\n",
+ cable->extcon_name, cable->id);
ret = -EINVAL;
}

@@ -1589,8 +1596,8 @@ static struct charger_desc *of_cm_parse_desc(struct device *dev)
chg_regs->cables = cables;

for_each_child_of_node(child, _child) {
- of_property_read_string(_child,
- "cm-cable-name", &cables->name);
+ of_property_read_u32(_child,
+ "cm-cable-id", &cables->id);
of_property_read_string(_child,
"cm-cable-extcon",
&cables->extcon_name);
@@ -1833,8 +1840,9 @@ err_reg_extcon:
for (j = 0; j < charger->num_cables; j++) {
struct charger_cable *cable = &charger->cables[j];
/* Remove notifier block if only edev exists */
- if (cable->extcon_dev.edev)
- extcon_unregister_interest(&cable->extcon_dev);
+ if (cable->extcon_dev)
+ extcon_unregister_notifier(cable->extcon_dev,
+ cable->id, &cable->nb);
}

regulator_put(desc->charger_regulators[i].consumer);
@@ -1865,7 +1873,8 @@ static int charger_manager_remove(struct platform_device *pdev)
= &desc->charger_regulators[i];
for (j = 0 ; j < charger->num_cables ; j++) {
struct charger_cable *cable = &charger->cables[j];
- extcon_unregister_interest(&cable->extcon_dev);
+ extcon_unregister_notifier(cable->extcon_dev,
+ cable->id, &cable->nb);
}
}

diff --git a/include/linux/power/charger-manager.h b/include/linux/power/charger-manager.h
index c4fa907c8f14..b3404bb825d6 100644
--- a/include/linux/power/charger-manager.h
+++ b/include/linux/power/charger-manager.h
@@ -63,10 +63,10 @@ enum cm_event_types {
*/
struct charger_cable {
const char *extcon_name;
- const char *name;
+ unsigned int id;

/* The charger-manager use Extcon framework */
- struct extcon_specific_cable_nb extcon_dev;
+ struct extcon_dev *extcon_dev;
struct work_struct wq;
struct notifier_block nb;

--
1.9.1
\
 
 \ /
  Last update: 2016-03-28 02:01    [W:0.334 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site