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authorStephen Warren <swarren@nvidia.com>2012-05-01 21:14:15 +0400
committerLinus Walleij <linus.walleij@linaro.org>2012-05-07 16:44:38 +0400
commitd4705316c18d371eb404d0ae5dcf51ce6e341d0f (patch)
tree3a582d8b2605e80a472d4c6607f1b478d7f2b786 /drivers/pinctrl/pinmux.c
parent17723111e64fbcc327846ff0b33532bcf1d40f56 (diff)
downloadlinux-d4705316c18d371eb404d0ae5dcf51ce6e341d0f.tar.xz
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>
Diffstat (limited to 'drivers/pinctrl/pinmux.c')
-rw-r--r--drivers/pinctrl/pinmux.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 2df753508eca..220fa492c9f0 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -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);
}
@@ -162,7 +164,7 @@ out_free_pin:
out:
if (status)
dev_err(pctldev->dev, "pin-%d (%s) status %d\n",
- pin, owner, status);
+ pin, owner, status);
return status;
}