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authorLaxman Dewangan <ldewangan@nvidia.com>2015-06-09 19:17:53 +0530
committerMark Brown <broonie@kernel.org>2015-06-09 18:09:11 +0100
commit0f7d6ece6363f315b3b830dc19e6732537719224 (patch)
treedd6f20405d8df44e8aeb196d43590dc9edc5f8cf /.gitignore
parent3064c1f302d1b61dbb0e40e4ffc902edc6208517 (diff)
regulator: max8973: add support for MAX77621
Maxim MAX77621 device is high-efficiency, three-phase, DC-DC step-down switching regulator delivers peak output currents up to 16A. This device is extension of MAX8973 and compatible with the register definition. The MAX77621 has the SHUTDOWN pin which is EN pin on the MAX8973. On MAX77621, the SHUTDOWN pin (active low) reset device register to its POR/OTP value. The voltage output is enabled when SHUTDONW pin is HIGH and EN bit on VOUT register is HIGH. For MAX8973, VOUT is enabled when EN bit or EN pin is high. Add support of the MAX77621 device on max8973 regulator driver with following changes: - Make sure SHUTDOWN pin is set HIGH through GPIO calls if GPIO from AP connected to SHUTDOWN pin provided. - Enable/disable the rail through register access only. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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