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| H A D | twl-regulator.txt | 906c4d5c Thu Jul 25 04:45:40 CDT 2019 Gregory CLEMENT <gregory.clement@bootlin.com> dt-bindings: regulator: twl6030: Add retain-on-reset property
During reset the VMMC regulator doesn't reach 0V and only drops to
1.8V, furthermore the pulse width is under 200us whereas the SD
specification expect 1ms.
For this 2 reasons being able to no reset at all the VMMC during warm
reset and keep the current voltage is a good workaround. The TWL6030
allows this but needs to be aware of it and this configuration should
also be shared with the bootloader.
This is the purpose of this new property: ti,retain-on-reset
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20190725094542.16547-2-gregory.clement@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
906c4d5c Thu Jul 25 04:45:40 CDT 2019 Gregory CLEMENT <gregory.clement@bootlin.com> dt-bindings: regulator: twl6030: Add retain-on-reset property
During reset the VMMC regulator doesn't reach 0V and only drops to
1.8V, furthermore the pulse width is under 200us whereas the SD
specification expect 1ms.
For this 2 reasons being able to no reset at all the VMMC during warm
reset and keep the current voltage is a good workaround. The TWL6030
allows this but needs to be aware of it and this configuration should
also be shared with the bootloader.
This is the purpose of this new property: ti,retain-on-reset
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20190725094542.16547-2-gregory.clement@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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