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path: root/drivers/power/tps65090-charger.c
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Diffstat (limited to 'drivers/power/tps65090-charger.c')
-rw-r--r--drivers/power/tps65090-charger.c79
1 files changed, 41 insertions, 38 deletions
diff --git a/drivers/power/tps65090-charger.c b/drivers/power/tps65090-charger.c
index 9fbca310a2a..1685f63b9e5 100644
--- a/drivers/power/tps65090-charger.c
+++ b/drivers/power/tps65090-charger.c
@@ -15,26 +15,18 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/delay.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/power_supply.h>
-#include <linux/mfd/tps65090.h>
+#include <linux/slab.h>
-#define TPS65090_REG_INTR_STS 0x00
-#define TPS65090_REG_CG_CTRL0 0x04
-#define TPS65090_REG_CG_CTRL1 0x05
-#define TPS65090_REG_CG_CTRL2 0x06
-#define TPS65090_REG_CG_CTRL3 0x07
-#define TPS65090_REG_CG_CTRL4 0x08
-#define TPS65090_REG_CG_CTRL5 0x09
-#define TPS65090_REG_CG_STATUS1 0x0a
-#define TPS65090_REG_CG_STATUS2 0x0b
+#include <linux/mfd/tps65090.h>
#define TPS65090_CHARGER_ENABLE BIT(0)
#define TPS65090_VACG BIT(1)
@@ -67,8 +59,7 @@ static int tps65090_low_chrg_current(struct tps65090_charger *charger)
return 0;
}
-static int tps65090_enable_charging(struct tps65090_charger *charger,
- uint8_t enable)
+static int tps65090_enable_charging(struct tps65090_charger *charger)
{
int ret;
uint8_t ctrl0 = 0;
@@ -84,7 +75,7 @@ static int tps65090_enable_charging(struct tps65090_charger *charger,
ret = tps65090_write(charger->dev->parent, TPS65090_REG_CG_CTRL0,
(ctrl0 | TPS65090_CHARGER_ENABLE));
if (ret < 0) {
- dev_err(charger->dev, "%s(): error reading in register 0x%x\n",
+ dev_err(charger->dev, "%s(): error writing in register 0x%x\n",
__func__, TPS65090_REG_CG_CTRL0);
return ret;
}
@@ -93,6 +84,7 @@ static int tps65090_enable_charging(struct tps65090_charger *charger,
static int tps65090_config_charger(struct tps65090_charger *charger)
{
+ uint8_t intrmask = 0;
int ret;
if (charger->pdata->enable_low_current_chrg) {
@@ -104,6 +96,23 @@ static int tps65090_config_charger(struct tps65090_charger *charger)
}
}
+ /* Enable the VACG interrupt for AC power detect */
+ ret = tps65090_read(charger->dev->parent, TPS65090_REG_INTR_MASK,
+ &intrmask);
+ if (ret < 0) {
+ dev_err(charger->dev, "%s(): error reading in register 0x%x\n",
+ __func__, TPS65090_REG_INTR_MASK);
+ return ret;
+ }
+
+ ret = tps65090_write(charger->dev->parent, TPS65090_REG_INTR_MASK,
+ (intrmask | TPS65090_VACG));
+ if (ret < 0) {
+ dev_err(charger->dev, "%s(): error writing in register 0x%x\n",
+ __func__, TPS65090_REG_CG_CTRL0);
+ return ret;
+ }
+
return 0;
}
@@ -146,7 +155,7 @@ static irqreturn_t tps65090_charger_isr(int irq, void *dev_id)
}
if (intrsts & TPS65090_VACG) {
- ret = tps65090_enable_charging(charger, 1);
+ ret = tps65090_enable_charging(charger);
if (ret < 0)
return IRQ_HANDLED;
charger->ac_online = 1;
@@ -154,16 +163,19 @@ static irqreturn_t tps65090_charger_isr(int irq, void *dev_id)
charger->ac_online = 0;
}
+ /* Clear interrupts. */
+ ret = tps65090_write(charger->dev->parent, TPS65090_REG_INTR_STS, 0x00);
+ if (ret < 0) {
+ dev_err(charger->dev, "%s(): Error in writing reg 0x%x\n",
+ __func__, TPS65090_REG_INTR_STS);
+ }
+
if (charger->prev_ac_online != charger->ac_online)
power_supply_changed(&charger->ac);
return IRQ_HANDLED;
}
-#if defined(CONFIG_OF)
-
-#include <linux/of_device.h>
-
static struct tps65090_platform_data *
tps65090_parse_dt_charger_data(struct platform_device *pdev)
{
@@ -185,13 +197,6 @@ static struct tps65090_platform_data *
return pdata;
}
-#else
-static struct tps65090_platform_data *
- tps65090_parse_dt_charger_data(struct platform_device *pdev)
-{
- return NULL;
-}
-#endif
static int tps65090_charger_probe(struct platform_device *pdev)
{
@@ -203,7 +208,7 @@ static int tps65090_charger_probe(struct platform_device *pdev)
pdata = dev_get_platdata(pdev->dev.parent);
- if (!pdata && pdev->dev.of_node)
+ if (IS_ENABLED(CONFIG_OF) && !pdata && pdev->dev.of_node)
pdata = tps65090_parse_dt_charger_data(pdev);
if (!pdata) {
@@ -218,7 +223,7 @@ static int tps65090_charger_probe(struct platform_device *pdev)
return -ENOMEM;
}
- dev_set_drvdata(&pdev->dev, cdata);
+ platform_set_drvdata(pdev, cdata);
cdata->dev = &pdev->dev;
cdata->pdata = pdata;
@@ -230,6 +235,7 @@ static int tps65090_charger_probe(struct platform_device *pdev)
cdata->ac.num_properties = ARRAY_SIZE(tps65090_ac_props);
cdata->ac.supplied_to = pdata->supplied_to;
cdata->ac.num_supplicants = pdata->num_supplicants;
+ cdata->ac.of_node = pdev->dev.of_node;
ret = power_supply_register(&pdev->dev, &cdata->ac);
if (ret) {
@@ -251,13 +257,13 @@ static int tps65090_charger_probe(struct platform_device *pdev)
if (ret) {
dev_err(cdata->dev, "Unable to register irq %d err %d\n", irq,
ret);
- goto fail_free_irq;
+ goto fail_unregister_supply;
}
ret = tps65090_config_charger(cdata);
if (ret < 0) {
dev_err(&pdev->dev, "charger config failed, err %d\n", ret);
- goto fail_free_irq;
+ goto fail_unregister_supply;
}
/* Check for charger presence */
@@ -266,14 +272,14 @@ static int tps65090_charger_probe(struct platform_device *pdev)
if (ret < 0) {
dev_err(cdata->dev, "%s(): Error in reading reg 0x%x", __func__,
TPS65090_REG_CG_STATUS1);
- goto fail_free_irq;
+ goto fail_unregister_supply;
}
if (status1 != 0) {
- ret = tps65090_enable_charging(cdata, 1);
+ ret = tps65090_enable_charging(cdata);
if (ret < 0) {
dev_err(cdata->dev, "error enabling charger\n");
- goto fail_free_irq;
+ goto fail_unregister_supply;
}
cdata->ac_online = 1;
power_supply_changed(&cdata->ac);
@@ -281,8 +287,6 @@ static int tps65090_charger_probe(struct platform_device *pdev)
return 0;
-fail_free_irq:
- devm_free_irq(cdata->dev, irq, cdata);
fail_unregister_supply:
power_supply_unregister(&cdata->ac);
@@ -291,9 +295,8 @@ fail_unregister_supply:
static int tps65090_charger_remove(struct platform_device *pdev)
{
- struct tps65090_charger *cdata = dev_get_drvdata(&pdev->dev);
+ struct tps65090_charger *cdata = platform_get_drvdata(pdev);
- devm_free_irq(cdata->dev, cdata->irq, cdata);
power_supply_unregister(&cdata->ac);
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 09:14:39 +0000