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author | Paul Kocialkowski | 2016-02-05 19:42:18 +0100 |
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committer | Mark Brown | 2016-02-05 18:57:08 +0000 |
commit | 690f44badf2f44b8ec09098118b74f789f95e2c8 (patch) | |
tree | 624763eb5b055bb2fdc90cda6d144b3ccc5614d1 /Documentation/iio | |
parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) |
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 'Documentation/iio')
0 files changed, 0 insertions, 0 deletions