| Message ID | 20180620051540.25617-2-wens@csie.org |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | arm64: allwinner: h6: Enable AXP805 PMIC on Pine H64 | expand |
On Wed, Jun 20, 2018 at 01:15:36PM +0800, Chen-Yu Tsai wrote: > The AXP806 has three operation modes: > > - master mode: The PMIC is the first or only AXP PMIC in the system, > but is not in charge of power management, i.e. only > provides regulator functions. > > - slave mode: The PMIC is the second AXP PMIC in the system, chained > to the first, or master, one. > > - self-working mode: The PMIC is the only AXP PMIC in the system, and > is in charge of power sequencing. > > The functional differences between these modes can be found in the > "Control and Operation" chapter of the AXP806 (in Chinese) and AXP805 > (in English) datasheets. These include how the PMIC responds to external > signals, whether it takes an external voltage reference or uses its own, > and whether the EN/PWRON pin functions as an enable switch or power button. > > We already support both slave and master mode. This patch adds a property > for describing the self-working mode, and reworks the description for > the mode properties. > > Signed-off-by: Chen-Yu Tsai <wens@csie.org> > --- > Documentation/devicetree/bindings/mfd/axp20x.txt | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) Reviewed-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Wed, 20 Jun 2018, Chen-Yu Tsai wrote: > The AXP806 has three operation modes: > > - master mode: The PMIC is the first or only AXP PMIC in the system, > but is not in charge of power management, i.e. only > provides regulator functions. > > - slave mode: The PMIC is the second AXP PMIC in the system, chained > to the first, or master, one. > > - self-working mode: The PMIC is the only AXP PMIC in the system, and > is in charge of power sequencing. > > The functional differences between these modes can be found in the > "Control and Operation" chapter of the AXP806 (in Chinese) and AXP805 > (in English) datasheets. These include how the PMIC responds to external > signals, whether it takes an external voltage reference or uses its own, > and whether the EN/PWRON pin functions as an enable switch or power button. > > We already support both slave and master mode. This patch adds a property > for describing the self-working mode, and reworks the description for > the mode properties. > > Signed-off-by: Chen-Yu Tsai <wens@csie.org> > --- > Documentation/devicetree/bindings/mfd/axp20x.txt | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) For my own reference: Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt index d1762f3b30af..eaaf79c01e1e 100644 --- a/Documentation/devicetree/bindings/mfd/axp20x.txt +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt @@ -45,8 +45,11 @@ Optional properties: board is driving OTG VBus or not. (axp221 / axp223 / axp803/ axp813 only) -- x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is - wired for master mode. The default is slave mode. +- x-powers,self-working-mode and + x-powers,master-mode: Boolean (axp806 only). Set either of these when the + PMIC is wired for self-working mode or master mode. + If neither is set then slave mode is assumed. + This corresponds to how the MODESET pin is wired. - <input>-supply: a phandle to the regulator supply node. May be omitted if inputs are unregulated, such as using the IPSOUT output
The AXP806 has three operation modes: - master mode: The PMIC is the first or only AXP PMIC in the system, but is not in charge of power management, i.e. only provides regulator functions. - slave mode: The PMIC is the second AXP PMIC in the system, chained to the first, or master, one. - self-working mode: The PMIC is the only AXP PMIC in the system, and is in charge of power sequencing. The functional differences between these modes can be found in the "Control and Operation" chapter of the AXP806 (in Chinese) and AXP805 (in English) datasheets. These include how the PMIC responds to external signals, whether it takes an external voltage reference or uses its own, and whether the EN/PWRON pin functions as an enable switch or power button. We already support both slave and master mode. This patch adds a property for describing the self-working mode, and reworks the description for the mode properties. Signed-off-by: Chen-Yu Tsai <wens@csie.org> --- Documentation/devicetree/bindings/mfd/axp20x.txt | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)