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Message-ID: <1440400807-32274-6-git-send-email-peter.ujfalusi@ti.com>
Date: Mon, 24 Aug 2015 10:20:01 +0300
From: Peter Ujfalusi <peter.ujfalusi@...com>
To: Tony Lindgren <tony@...mide.com>
CC: <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-omap@...r.kernel.org>, <devicetree@...r.kernel.org>,
Tero Kristo <t-kristo@...com>
Subject: [PATCH 05/11] ARM: DTS: dra7-evm: Enable pcf8575 (0x26 address) on i2c2 bus
This GPIO expander is used for controlling various muxes on the board.
By default select audio functionality over VIN6 by setting the P1
(vin6_sel_s0) pin to low.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
---
arch/arm/boot/dts/dra7-evm.dts | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index add77ac4f302..3694046c29eb 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -438,6 +438,20 @@
pinctrl-names = "default";
pinctrl-0 = <&i2c2_pins>;
clock-frequency = <400000>;
+
+ pcf_hdmi: gpio@26 {
+ compatible = "nxp,pcf8575";
+ reg = <0x26>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ p1 {
+ /* vin6_sel_s0: high: VIN6, low: audio */
+ gpio-hog;
+ gpios = <1 GPIO_ACTIVE_HIGH>;
+ output-low;
+ line-name = "vin6_sel_s0";
+ };
+ };
};
&i2c3 {
--
2.5.0
--
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