From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Zhong Subject: [PATCH v4 1/2] mfd: dt-bindings: add the description about dvs gpio for rk808 Date: Mon, 20 Jul 2015 17:23:52 +0800 Message-ID: <1437384233-26169-2-git-send-email-zyw@rock-chips.com> References: <1437384233-26169-1-git-send-email-zyw@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1437384233-26169-1-git-send-email-zyw-TNX95d0MmH7DzftRWevZcw@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+glpar-linux-rockchip=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Cc: mark.rutland-5wv7dgnIgG8@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, amstan-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org, Pawel Moll , Ian Campbell , lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, Zhang Qing , dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Rob Herring , Kumar Gala , Chris Zhong , sonnyrao-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org List-Id: devicetree@vger.kernel.org add the description about dvs1, dvs2, and add the example. Signed-off-by: Chris Zhong Reviewed-by: Doug Anderson --- Changes in v4: - Remove the description about dvs-ok Changes in v3: - Modify the syntax error Changes in v2: - increase description about dvs pins Documentation/devicetree/bindings/mfd/rk808.txt | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mfd/rk808.txt b/Documentation/devicetree/bindings/mfd/rk808.txt index 9e6e259..4ca6aab 100644 --- a/Documentation/devicetree/bindings/mfd/rk808.txt +++ b/Documentation/devicetree/bindings/mfd/rk808.txt @@ -24,6 +24,10 @@ Optional properties: - vcc10-supply: The input supply for LDO_REG6 - vcc11-supply: The input supply for LDO_REG8 - vcc12-supply: The input supply for SWITCH_REG2 +- dvs-gpios: buck1/2 can be controlled by gpio dvs, this is GPIO specifiers + for 2 host gpio's used for dvs. The format of the gpio specifier depends in + the gpio controller. If DVS GPIOs aren't present, voltage changes will happen + very quickly with no slow ramp time. Regulators: All the regulators of RK808 to be instantiated shall be listed in a child node named 'regulators'. Each regulator is represented @@ -55,7 +59,9 @@ Example: interrupt-parent = <&gpio0>; interrupts = <4 IRQ_TYPE_LEVEL_LOW>; pinctrl-names = "default"; - pinctrl-0 = <&pmic_int>; + pinctrl-0 = <&pmic_int &dvs_1 &dvs_2>; + dvs-gpios = <&gpio7 11 GPIO_ACTIVE_HIGH>, + <&gpio7 15 GPIO_ACTIVE_HIGH>; reg = <0x1b>; rockchip,system-power-controller; wakeup-source; -- 1.9.1