diff options
| author | Paul Kocialkowski <contact@paulk.fr> | 2016-02-05 21:42:18 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-02-05 21:57:08 +0300 |
| commit | 690f44badf2f44b8ec09098118b74f789f95e2c8 (patch) | |
| tree | 624763eb5b055bb2fdc90cda6d144b3ccc5614d1 /drivers/regulator | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
| download | linux-690f44badf2f44b8ec09098118b74f789f95e2c8.tar.xz | |
regulator: lp872x: Remove warning about invalid DVS GPIO
Some devices don't hook the DVS pin to a GPIO but to ground or VCC.
In those cases, it is not a problem to have no DVS GPIO provided, as the current
code will already switch to software-only DVS selection:
When the DVS GPIO is invalid, lp872x_init_dvs jumps to the set_default_dvs_mode
label, which instructs the chip not to use the DVS pin at all and do it all in
software instead (by clearing the LP8720_EXT_DVS_M bit in the
LP872X_GENERAL_CFG register).
That is reflected later in the code, when setting the bucks (the DVS pin only
applies to the bucks) by checking for the LP8720_EXT_DVS_M bit on the
LP872X_GENERAL_CFG register (in lp872x_select_buck_vout_addr) to decide whether
to use software or hardware DVS selection.
Thus, there is no need to print a warning when the DVS GPIO is invalid.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/lp872x.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index 19d758486553..21c49d871aba 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -738,10 +738,8 @@ static int lp872x_init_dvs(struct lp872x *lp) goto set_default_dvs_mode; gpio = dvs->gpio; - if (!gpio_is_valid(gpio)) { - dev_warn(lp->dev, "invalid gpio: %d\n", gpio); + if (!gpio_is_valid(gpio)) goto set_default_dvs_mode; - } pinstate = dvs->init_state; ret = devm_gpio_request_one(lp->dev, gpio, pinstate, "LP872X DVS"); |