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| author | Fabio Estevam <festevam@denx.de> | 2024-08-21 08:42:02 -0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-08-21 14:28:55 +0200 |
| commit | b41a9bf2c64eea119bb6cbef420345f547b9a677 (patch) | |
| tree | 5a98a2dd2ff5b4be4e5a7b4adb7256c330677130 /drivers/gpio | |
| parent | 2a4727e6a8bd1d2b8ae7abf95061eda0457c4d79 (diff) | |
| download | linux-b41a9bf2c64eea119bb6cbef420345f547b9a677.tar.gz linux-b41a9bf2c64eea119bb6cbef420345f547b9a677.tar.bz2 linux-b41a9bf2c64eea119bb6cbef420345f547b9a677.zip | |
gpio: pca953x: Print the error code on read/write failures
Print the error code in the pca953x_write_regs() and pca953x_read_regs()
functions to help debugging.
Suggested-by: Russell King (Oracle) <linux@armlinux.org.uk>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20240821114202.2072220-1-festevam@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-pca953x.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 8baf3edd5274..3f2d33ee20cc 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -498,7 +498,7 @@ static int pca953x_write_regs(struct pca953x_chip *chip, int reg, unsigned long ret = regmap_bulk_write(chip->regmap, regaddr, value, NBANK(chip)); if (ret < 0) { - dev_err(&chip->client->dev, "failed writing register\n"); + dev_err(&chip->client->dev, "failed writing register: %d\n", ret); return ret; } @@ -513,7 +513,7 @@ static int pca953x_read_regs(struct pca953x_chip *chip, int reg, unsigned long * ret = regmap_bulk_read(chip->regmap, regaddr, value, NBANK(chip)); if (ret < 0) { - dev_err(&chip->client->dev, "failed reading register\n"); + dev_err(&chip->client->dev, "failed reading register: %d\n", ret); return ret; } |