From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brian Norris Subject: [PATCH v3 4/4] arm64: dts: rockchip: add regulator info for Kevin digitizer Date: Mon, 20 Mar 2017 16:53:44 -0700 Message-ID: <20170320235344.126298-5-briannorris@chromium.org> References: <20170320235344.126298-1-briannorris@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170320235344.126298-1-briannorris-F7+t8E8rja9g9hUCZPvPmw@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: Heiko Stuebner Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Brian Norris , Doug Anderson , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Rob Herring , Chris Zhong , Stephen Barber , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Caesar Wang List-Id: devicetree@vger.kernel.org We need to enable this regulator before the digitizer can be used. Wacom recommended waiting for 100 ms before talking to the HID. Signed-off-by: Brian Norris --- v3: * reintroduced into patch set; bindings are in linux-next --- arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts index 2f720cf2fd07..f4714c4606f3 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts @@ -232,6 +232,9 @@ ap_i2c_dig: &i2c2 { pinctrl-names = "default"; pinctrl-0 = <&cpu1_dig_irq_l &cpu1_dig_pdct_l>; + vdd-supply = <&p3_3v_dig>; + post-power-on-delay-ms = <100>; + interrupt-parent = <&gpio2>; interrupts = <4 IRQ_TYPE_LEVEL_LOW>; -- 2.12.0.367.g23dc2f6d3c-goog