From mboxrd@z Thu Jan 1 00:00:00 1970 From: robh@kernel.org (Rob Herring) Date: Tue, 26 Jun 2018 15:41:14 -0600 Subject: [PATCH 1/5] dt-bindings: mfd: axp20x: Add "self-working" mode for AXP806 In-Reply-To: <20180620051540.25617-2-wens@csie.org> References: <20180620051540.25617-1-wens@csie.org> <20180620051540.25617-2-wens@csie.org> Message-ID: <20180626214114.GA18819@rob-hp-laptop> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > --- > Documentation/devicetree/bindings/mfd/axp20x.txt | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) Reviewed-by: Rob Herring