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| From | Andrey Smirnov <andrew.smirnov@gmail.com> |
| Newsgroups | linux.kernel |
| Subject | [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node |
| Date | Thu, 13 Apr 2017 15:40:01 +0200 |
| Message-ID | <tvN8B-3CF-9@gated-at.bofh.it> (permalink) |
| References | <tvN8B-3CF-3@gated-at.bofh.it> |
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| X-Original-Cc | Andrey Smirnov <andrew.smirnov@gmail.com>, yurovsky@gmail.com, Sascha Hauer <kernel@pengutronix.de>, Fabio Estevam <fabio.estevam@nxp.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Russell King <linux@armlinux.org.uk>, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org |
| X-Original-Date | Thu, 13 Apr 2017 06:32:40 -0700 |
| X-Original-Message-ID | <20170413133242.5068-7-andrew.smirnov@gmail.com> |
| X-Original-References | <20170413133242.5068-1-andrew.smirnov@gmail.com> |
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| Xref | csiph.com linux.kernel:1623018 |
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Add node for U38, a 74LV595PW serial-in shift register that acts as a
GPIO expander on the board.
Cc: yurovsky@gmail.com
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
arch/arm/boot/dts/imx7d-sdb.dts | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts
index 5be01a1..e0ff276 100644
--- a/arch/arm/boot/dts/imx7d-sdb.dts
+++ b/arch/arm/boot/dts/imx7d-sdb.dts
@@ -52,6 +52,30 @@
reg = <0x80000000 0x80000000>;
};
+ spi4 {
+ compatible = "spi-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spi1>;
+ status = "okay";
+ gpio-sck = <&gpio1 13 0>;
+ gpio-mosi = <&gpio1 9 0>;
+ cs-gpios = <&gpio1 12 0>;
+ num-chipselects = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpio_spi: gpio_spi@0 {
+ compatible = "fairchild,74hc595";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0>;
+ registers-number = <1>;
+ /* Enable PERI_3V3, SENSOR_RST_B and HDMI_RST*/
+ registers-default = /bits/ 8 <0x74>;
+ spi-max-frequency = <100000>;
+ };
+ };
+
regulators {
compatible = "simple-bus";
#address-cells = <1>;
@@ -642,5 +666,13 @@
fsl,pins = <
MX7D_PAD_LPSR_GPIO1_IO01__PWM1_OUT 0x110b0
>;
+
+ pinctrl_spi1: spi1grp {
+ fsl,pins = <
+ MX7D_PAD_GPIO1_IO09__GPIO1_IO9 0x59
+ MX7D_PAD_GPIO1_IO12__GPIO1_IO12 0x59
+ MX7D_PAD_GPIO1_IO13__GPIO1_IO13 0x59
+ >;
+ };
};
};
--
2.9.3
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[PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node Andrey Smirnov <andrew.smirnov@gmail.com> - 2017-04-13 15:40 +0200
Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node Fabio Estevam <festevam@gmail.com> - 2017-04-14 00:30 +0200
Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node Andrey Smirnov <andrew.smirnov@gmail.com> - 2017-04-14 17:30 +0200
Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node Shawn Guo <shawnguo@kernel.org> - 2017-04-14 05:50 +0200
Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node Andrey Smirnov <andrew.smirnov@gmail.com> - 2017-04-14 17:40 +0200
Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node Dong Aisheng <dongas86@gmail.com> - 2017-04-14 18:10 +0200
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