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authorHans de Goede <hdegoede@redhat.com>2016-12-19 03:13:06 +0300
committerChanwoo Choi <cw00.choi@samsung.com>2017-01-09 04:04:09 +0300
commit768842413997c3c946a716427b78cc308a4fdae0 (patch)
treec134ed0ae494b069e48e2ade6f4b6e9d539cc8e8 /drivers/extcon
parent9fe172b9be532acc23e35ba693700383ab775e66 (diff)
downloadlinux-768842413997c3c946a716427b78cc308a4fdae0.tar.xz
extcon: axp288: Remove dependency on non-existing platform_data
When the extcon_axp288 driver was originally merged, it was merged with a dependency on some other driver providing platform data for it. However such another driver was never merged, so the extcon_axp288 as merged upstream has never worked, its probe method simply always returns -ENODEV. This commit drops the dependency on the pdata always being there, instead it treats not having pdata as the pdata having a NULL gpio_mux_control, something which the code was already prepared to handle. Note that the code for controlling the mux_control gpio is left in place, as this may be necessary to allow the axp288 pmic to properly detect the charger type (instead of assuming 500mA max charge current) on some tablets. This will make it easier for future patches to add support for this gpio by getting the gpio info from somewhere. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/extcon-axp288.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 42f41e808292..a84fab87e201 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -112,7 +112,7 @@ struct axp288_extcon_info {
struct device *dev;
struct regmap *regmap;
struct regmap_irq_chip_data *regmap_irqc;
- struct axp288_extcon_pdata *pdata;
+ struct gpio_desc *gpio_mux_cntl;
int irq[EXTCON_IRQ_END];
struct extcon_dev *edev;
struct notifier_block extcon_nb;
@@ -216,8 +216,8 @@ notify_otg:
* If VBUS is absent Connect D+/D- lines to PMIC for BC
* detection. Else connect them to SOC for USB communication.
*/
- if (info->pdata->gpio_mux_cntl)
- gpiod_set_value(info->pdata->gpio_mux_cntl,
+ if (info->gpio_mux_cntl)
+ gpiod_set_value(info->gpio_mux_cntl,
vbus_attach ? EXTCON_GPIO_MUX_SEL_SOC
: EXTCON_GPIO_MUX_SEL_PMIC);
@@ -271,6 +271,7 @@ static int axp288_extcon_probe(struct platform_device *pdev)
{
struct axp288_extcon_info *info;
struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
+ struct axp288_extcon_pdata *pdata = pdev->dev.platform_data;
int ret, i, pirq, gpio;
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
@@ -280,15 +281,9 @@ static int axp288_extcon_probe(struct platform_device *pdev)
info->dev = &pdev->dev;
info->regmap = axp20x->regmap;
info->regmap_irqc = axp20x->regmap_irqc;
- info->pdata = pdev->dev.platform_data;
-
- if (!info->pdata) {
- /* Try ACPI provided pdata via device properties */
- if (!device_property_present(&pdev->dev,
- "axp288_extcon_data\n"))
- dev_err(&pdev->dev, "failed to get platform data\n");
- return -ENODEV;
- }
+ if (pdata)
+ info->gpio_mux_cntl = pdata->gpio_mux_cntl;
+
platform_set_drvdata(pdev, info);
axp288_extcon_log_rsi(info);
@@ -316,15 +311,15 @@ static int axp288_extcon_probe(struct platform_device *pdev)
}
/* Set up gpio control for USB Mux */
- if (info->pdata->gpio_mux_cntl) {
- gpio = desc_to_gpio(info->pdata->gpio_mux_cntl);
+ if (info->gpio_mux_cntl) {
+ gpio = desc_to_gpio(info->gpio_mux_cntl);
ret = devm_gpio_request(&pdev->dev, gpio, "USB_MUX");
if (ret < 0) {
dev_err(&pdev->dev,
"failed to request the gpio=%d\n", gpio);
return ret;
}
- gpiod_direction_output(info->pdata->gpio_mux_cntl,
+ gpiod_direction_output(info->gpio_mux_cntl,
EXTCON_GPIO_MUX_SEL_PMIC);
}