linux-kernel - [PATCH] arm64: dts: rockchip: Add pinctrl entry for 32k clock on rk3399

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Date:   Thu,  1 Sep 2016 16:53:22 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     linux-rockchip@...ts.infradead.org, wxt@...k-chips.com,
        zhengxing@...k-chips.com, tonie.xie@...k-chips.com,
        Douglas Anderson <dianders@...omium.org>, robh+dt@...nel.org,
        mark.rutland@....com, catalin.marinas@....com, will.deacon@....com,
        briannorris@...omium.org, jay.xu@...k-chips.com,
        zhangqing@...k-chips.com, yamada.masahiro@...ionext.com,
        david.wu@...k-chips.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: rockchip: Add pinctrl entry for 32k clock on rk3399

On some rk3399 boards GPIO0_A0 is hooked up to a 32 kHz clock.  This can
be used as the source for various clocks in the system.

Add a pinmux so boards can get this pin properly configured.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
---
 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 62d450935a57..13e2a440fe43 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1171,6 +1171,12 @@
 			drive-strength = <13>;
 		};
 
+		clock {
+			clk_32k: clk-32k {
+				rockchip,pins = <0 0 RK_FUNC_2 &pcfg_pull_none>;
+			};
+		};
+
 		i2c0 {
 			i2c0_xfer: i2c0-xfer {
 				rockchip,pins =
-- 
2.8.0.rc3.226.g39d4020