diff mbox

[v3,2/7] max8903: store pointer to pdata instead of copying it.

Message ID 1466139626-51434-3-git-send-email-chris@lapa.com.au (mailing list archive)
State Superseded, archived
Headers show

Commit Message

chris@lapa.com.au June 17, 2016, 5 a.m. UTC 
From: Chris Lapa <chris@lapa.com.au>

Stores pointer to pdata because it easily allows pdata to reference
either platform data or in the future device tree data.

Signed-off-by: Chris Lapa <chris@lapa.com.au>
---
 drivers/power/max8903_charger.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

Comments

Krzysztof Kozlowski June 17, 2016, 6:14 a.m. UTC | #1 
On 06/17/2016 07:00 AM, Chris Lapa wrote:
> From: Chris Lapa <chris@lapa.com.au>
> 
> Stores pointer to pdata because it easily allows pdata to reference
> either platform data or in the future device tree data.
> 
> Signed-off-by: Chris Lapa <chris@lapa.com.au>
> ---
>  drivers/power/max8903_charger.c | 20 +++++++++++++-------
>  1 file changed, 13 insertions(+), 7 deletions(-)

Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

Best regards,
Krzysztof
--
To unsubscribe from this list: send the line "unsubscribe linux-pm" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/power/max8903_charger.c b/drivers/power/max8903_charger.c
index 17876ca..0a5b0e1 100644
--- a/drivers/power/max8903_charger.c
+++ b/drivers/power/max8903_charger.c
@@ -29,7 +29,7 @@ 
 #include <linux/power/max8903_charger.h>
 
 struct max8903_data {
-	struct max8903_pdata pdata;
+	struct max8903_pdata *pdata;
 	struct device *dev;
 	struct power_supply *psy;
 	struct power_supply_desc psy_desc;
@@ -53,8 +53,8 @@  static int max8903_get_property(struct power_supply *psy,
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
 		val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
-		if (data->pdata.chg) {
-			if (gpio_get_value(data->pdata.chg) == 0)
+		if (data->pdata->chg) {
+			if (gpio_get_value(data->pdata->chg) == 0)
 				val->intval = POWER_SUPPLY_STATUS_CHARGING;
 			else if (data->usb_in || data->ta_in)
 				val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
@@ -81,7 +81,7 @@  static int max8903_get_property(struct power_supply *psy,
 static irqreturn_t max8903_dcin(int irq, void *_data)
 {
 	struct max8903_data *data = _data;
-	struct max8903_pdata *pdata = &data->pdata;
+	struct max8903_pdata *pdata = data->pdata;
 	bool ta_in;
 	enum power_supply_type old_type;
 
@@ -122,7 +122,7 @@  static irqreturn_t max8903_dcin(int irq, void *_data)
 static irqreturn_t max8903_usbin(int irq, void *_data)
 {
 	struct max8903_data *data = _data;
-	struct max8903_pdata *pdata = &data->pdata;
+	struct max8903_pdata *pdata = data->pdata;
 	bool usb_in;
 	enum power_supply_type old_type;
 
@@ -161,7 +161,7 @@  static irqreturn_t max8903_usbin(int irq, void *_data)
 static irqreturn_t max8903_fault(int irq, void *_data)
 {
 	struct max8903_data *data = _data;
-	struct max8903_pdata *pdata = &data->pdata;
+	struct max8903_pdata *pdata = data->pdata;
 	bool fault;
 
 	fault = gpio_get_value(pdata->flt) ? false : true;
@@ -190,12 +190,18 @@  static int max8903_probe(struct platform_device *pdev)
 	int ta_in = 0;
 	int usb_in = 0;
 
+	if (pdata == NULL) {
+		dev_err(dev, "No platform data.\n");
+		return -EINVAL;
+	}
+
 	data = devm_kzalloc(dev, sizeof(struct max8903_data), GFP_KERNEL);
 	if (data == NULL) {
 		dev_err(dev, "Cannot allocate memory.\n");
 		return -ENOMEM;
 	}
-	memcpy(&data->pdata, pdata, sizeof(struct max8903_pdata));
+
+	data->pdata = pdev->dev.platform_data;
 	data->dev = dev;
 	platform_set_drvdata(pdev, data);