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authorPali Rohár <pali.rohar@gmail.com>2016-02-21 12:28:18 +0100
committerSebastian Reichel <sre@kernel.org>2016-02-21 20:24:28 +0100
commited6107beb5cc2b47fcc335f089bef3dfe6c03602 (patch)
treeff1fe9ea324e2b920d2f96671eab7e413c0bd5e6 /drivers/power
parent6659b55dae09b2042d8cdd0f4576502c3e81957c (diff)
downloadlinux-ed6107beb5cc2b47fcc335f089bef3dfe6c03602.tar.bz2
power_supply: isp1704_charger: Error messages when probe fail
This patch adds more detailed error messages when probe function fails. It is useful for debbuging why the driver refuses to register the charger device. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/isp1704_charger.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index 46a292aa182d..acaf7cfd0370 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -411,8 +411,10 @@ static int isp1704_charger_probe(struct platform_device *pdev)
if (np) {
int gpio = of_get_named_gpio(np, "nxp,enable-gpio", 0);
- if (gpio < 0)
+ if (gpio < 0) {
+ dev_err(&pdev->dev, "missing DT GPIO nxp,enable-gpio\n");
return gpio;
+ }
pdata = devm_kzalloc(&pdev->dev,
sizeof(struct isp1704_charger_data), GFP_KERNEL);
@@ -422,8 +424,10 @@ static int isp1704_charger_probe(struct platform_device *pdev)
ret = devm_gpio_request_one(&pdev->dev, pdata->enable_gpio,
GPIOF_OUT_INIT_HIGH, "isp1704_reset");
- if (ret)
+ if (ret) {
+ dev_err(&pdev->dev, "gpio request failed\n");
goto fail0;
+ }
}
if (!pdata) {
@@ -443,6 +447,7 @@ static int isp1704_charger_probe(struct platform_device *pdev)
if (IS_ERR(isp->phy)) {
ret = PTR_ERR(isp->phy);
+ dev_err(&pdev->dev, "usb_get_phy failed\n");
goto fail0;
}
@@ -452,8 +457,10 @@ static int isp1704_charger_probe(struct platform_device *pdev)
isp1704_charger_set_power(isp, 1);
ret = isp1704_test_ulpi(isp);
- if (ret < 0)
+ if (ret < 0) {
+ dev_err(&pdev->dev, "isp1704_test_ulpi failed\n");
goto fail1;
+ }
isp->psy_desc.name = "isp1704";
isp->psy_desc.type = POWER_SUPPLY_TYPE_USB;
@@ -466,6 +473,7 @@ static int isp1704_charger_probe(struct platform_device *pdev)
isp->psy = power_supply_register(isp->dev, &isp->psy_desc, &psy_cfg);
if (IS_ERR(isp->psy)) {
ret = PTR_ERR(isp->psy);
+ dev_err(&pdev->dev, "power_supply_register failed\n");
goto fail1;
}
@@ -478,8 +486,10 @@ static int isp1704_charger_probe(struct platform_device *pdev)
isp->nb.notifier_call = isp1704_notifier_call;
ret = usb_register_notifier(isp->phy, &isp->nb);
- if (ret)
+ if (ret) {
+ dev_err(&pdev->dev, "usb_register_notifier failed\n");
goto fail2;
+ }
dev_info(isp->dev, "registered with product id %s\n", isp->model);