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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2019-07-03 18:10:34 +0200
committerMark Brown <broonie@kernel.org>2019-07-04 17:07:25 +0100
commit2da8d9473e20a2f6645dcb0cea4848a2c1e83af9 (patch)
treed76abfc73cbc76a688f6e7f6e07a4c5f1e88abbf /include/linux/regulator/driver.h
parentba2bf340ade89e71c53273ea115c7872865782c1 (diff)
regulator: implement selector stepping
Some regulators require that the requested voltage be reached gradually by setting all or some of the intermediate values. Implement a new field in the regulator description struct that allows users to specify the number of selectors by which the regulator API should step when ramping the voltage up/down. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Link: https://lore.kernel.org/r/20190703161035.31808-2-brgl@bgdev.pl Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/regulator/driver.h')
-rw-r--r--include/linux/regulator/driver.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 377da2357118..f0d7b0496e54 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -286,6 +286,11 @@ enum regulator_type {
* @vsel_range_mask: Mask for register bitfield used for range selector
* @vsel_reg: Register for selector when using regulator_regmap_X_voltage_
* @vsel_mask: Mask for register bitfield used for selector
+ * @vsel_step: Specify the resolution of selector stepping when setting
+ * voltage. If 0, then no stepping is done (requested selector is
+ * set directly), if >0 then the regulator API will ramp the
+ * voltage up/down gradually each time increasing/decreasing the
+ * selector by the specified step value.
* @csel_reg: Register for current limit selector using regmap set_current_limit
* @csel_mask: Mask for register bitfield used for current limit selector
* @apply_reg: Register for initiate voltage change on the output when
@@ -360,6 +365,7 @@ struct regulator_desc {
unsigned int vsel_range_mask;
unsigned int vsel_reg;
unsigned int vsel_mask;
+ unsigned int vsel_step;
unsigned int csel_reg;
unsigned int csel_mask;
unsigned int apply_reg;