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4 Commits

Author SHA1 Message Date
Bryan O'Donoghue
67823d9dad
regulator: Add a routine to set the current limit for QCOM PMIC VBUS 
Add hooks to regulator_get_current_limit_regmap() and
regulator_set_current_limit_regmap() with an accompanying map of amperages.

This lets us use the existing helper functions to map requested current
settings to register bit-map/indicies.

This change is required to elevate the default 2 Amps set by the bootloader
to 3 Amps or indeed to constrain the value lower as the system design may
dictate.

The valid range is 500 mA to 3 A in increments of 500 mA.

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20210427130712.2005456-2-bryan.odonoghue@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-10 13:06:50 +01:00
Jonathan Marek
66c3b96a7b
regulator: set of_node for qcom vbus regulator 
This allows the regulator to be found by devm_regulator_get().

Fixes: 4fe66d5a62 ("regulator: Add support for QCOM PMIC VBUS booster")

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20200818162508.5246-1-jonathan@marek.ca
Signed-off-by: Mark Brown <broonie@kernel.org>
 2020-08-18 18:38:25 +01:00
Colin Ian King
94462138f3
regulator: fix null pointer check on regmap 
The null pointer check on regmap that checks for a dev_get_regmap failure
is currently returning -ENOENT if the regmap succeeded. Fix this by adding
in the missing ! operator.

Fixes: 4fe66d5a62 ("regulator: Add support for QCOM PMIC VBUS booster")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Addresses-Coverity: ("Dereference after null check")
Link: https://lore.kernel.org/r/20200702115659.38208-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2020-07-02 16:45:45 +01:00
Wesley Cheng
4fe66d5a62
regulator: Add support for QCOM PMIC VBUS booster 
Some Qualcomm PMICs have the capability to source the VBUS output to
connected peripherals.  This driver will register a regulator to the
regulator list to enable or disable this source by an external driver.

Signed-off-by: Wesley Cheng <wcheng@codeaurora.org>
Link: https://lore.kernel.org/r/20200626185516.18018-5-wcheng@codeaurora.org
Signed-off-by: Mark Brown <broonie@kernel.org>
 2020-07-01 18:07:15 +01:00