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pinctrl: add more info to error msgs in pin_request 

Additionally print which pin the request failed for, which entity already
claimed it, and what entity was trying to claim it.

Remove duplicate device name from a debug message.

Clean up some indentation.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Stephen Warren 2012-05-01 11:14:15 -06:00 committed by Linus Walleij
parent 17723111e6
commit d4705316c1
1 changed files with 8 additions and 6 deletions
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12
drivers/pinctrl/pinmux.c
View File

@ -92,7 +92,8 @@ static int pin_request(struct pinctrl_dev *pctldev,
desc = pin_desc_get(pctldev, pin);
if (desc == NULL) {
dev_err(pctldev->dev,
"pin is not registered so it cannot be requested\n");
"pin %d is not registered so it cannot be requested\n",
pin);
goto out;
}
@ -103,7 +104,8 @@ static int pin_request(struct pinctrl_dev *pctldev,
/* There's no need to support multiple GPIO requests */
if (desc->gpio_owner) {
dev_err(pctldev->dev,
"pin already requested\n");
"pin %s already requested by %s; cannot claim for %s\n",
desc->name, desc->gpio_owner, owner);
goto out;
}
@ -111,7 +113,8 @@ static int pin_request(struct pinctrl_dev *pctldev,
} else {
if (desc->mux_usecount && strcmp(desc->mux_owner, owner)) {
dev_err(pctldev->dev,
"pin already requested\n");
"pin %s already requested by %s; cannot claim for %s\n",
desc->name, desc->mux_owner, owner);
goto out;
}
@ -144,8 +147,7 @@ static int pin_request(struct pinctrl_dev *pctldev,
status = 0;
if (status) {
dev_err(pctldev->dev, "request on device %s failed for pin %d\n",
pctldev->desc->name, pin);
dev_err(pctldev->dev, "request() failed for pin %d\n", pin);
module_put(pctldev->owner);
}