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Message-Id: <20181023120919.11627-1-Eugeniy.Paltsev@synopsys.com>
Date: Tue, 23 Oct 2018 15:09:19 +0300
From: Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>
To: linux-snps-arc@...ts.infradead.org,
Vineet Gupta <vineet.gupta1@...opsys.com>
Cc: linux-kernel@...r.kernel.org,
Alexey Brodkin <alexey.brodkin@...opsys.com>,
Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>
Subject: [PATCH] ARC: [plat-hsdk] Enable DW APB GPIO support
Enable GPIO support on HSDK. HSDK SoC includes Synopsys
DesignWare DW_apb_gpio IP with 24 GPIOs mapped onto port A.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>
---
arch/arc/boot/dts/hsdk.dts | 15 +++++++++++++++
arch/arc/configs/hsdk_defconfig | 3 +++
2 files changed, 18 insertions(+)
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index ef149f59929a..43f17b51ee89 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -222,6 +222,21 @@
bus-width = <4>;
dma-coherent;
};
+
+ gpio: gpio@...0 {
+ compatible = "snps,dw-apb-gpio";
+ reg = <0x3000 0x20>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpio_port_a: gpio-controller@0 {
+ compatible = "snps,dw-apb-gpio-port";
+ gpio-controller;
+ #gpio-cells = <2>;
+ snps,nr-gpios = <24>;
+ reg = <0>;
+ };
+ };
};
memory@...00000 {
diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig
index 1dec2b4bc5e6..eca10b8baea5 100644
--- a/arch/arc/configs/hsdk_defconfig
+++ b/arch/arc/configs/hsdk_defconfig
@@ -45,6 +45,9 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_DWAPB=y
# CONFIG_HWMON is not set
CONFIG_DRM=y
# CONFIG_DRM_FBDEV_EMULATION is not set
--
2.14.5
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