ARC: [plat-hsdk]: enable creg-gpio controller
diff mbox series

Message ID 20190528094052.2393-1-Eugeniy.Paltsev@synopsys.com
State New
Headers show
Series
  • ARC: [plat-hsdk]: enable creg-gpio controller
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Commit Message

Eugeniy Paltsev May 28, 2019, 9:40 a.m. UTC
HSDK SOC has CREG GPIO controller which can be used to control
SPI chip select lines.
Enable it in preparation of enabling SPI peripherals.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
---
 arch/arc/boot/dts/hsdk.dts      | 8 ++++++++
 arch/arc/configs/hsdk_defconfig | 1 +
 2 files changed, 9 insertions(+)

Comments

Alexey Brodkin May 28, 2019, 12:04 p.m. UTC | #1
Hi Eugeniy,

> -----Original Message-----
> From: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
> Sent: Tuesday, May 28, 2019 12:41 PM
> To: linux-snps-arc@lists.infradead.org; Vineet Gupta <vgupta@synopsys.com>
> Cc: linux-kernel@vger.kernel.org; Alexey Brodkin <abrodkin@synopsys.com>; Eugeniy Paltsev
> <Eugeniy.Paltsev@synopsys.com>
> Subject: [PATCH] ARC: [plat-hsdk]: enable creg-gpio controller
> 
> HSDK SOC has CREG GPIO controller which can be used to control

SoC

> SPI chip select lines.
> Enable it in preparation of enabling SPI peripherals.

Acked-by: Alexey Brodkin <abrodkin@synopsys.com>

Adding Rob to the Cc list.

-Alexey
Vineet Gupta May 28, 2019, 5:07 p.m. UTC | #2
On 5/28/19 2:40 AM, Eugeniy Paltsev wrote:
> HSDK SOC has CREG GPIO controller which can be used to control
> SPI chip select lines.
> Enable it in preparation of enabling SPI peripherals.
> 
> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>

Added to for-curr

Thx,
-Vineet

Patch
diff mbox series

diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 7425bb0f2d1b..83e163e51b34 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -237,6 +237,14 @@ 
 			dma-coherent;
 		};
 
+		creg_gpio: gpio@14b0 {
+			compatible = "snps,creg-gpio-hsdk";
+			reg = <0x14b0 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			ngpios = <2>;
+		};
+
 		gpio: gpio@3000 {
 			compatible = "snps,dw-apb-gpio";
 			reg = <0x3000 0x20>;
diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig
index 0e5fd29ed238..0c4411f50948 100644
--- a/arch/arc/configs/hsdk_defconfig
+++ b/arch/arc/configs/hsdk_defconfig
@@ -49,6 +49,7 @@  CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_GPIO_DWAPB=y
+CONFIG_GPIO_SNPS_CREG=y
 # CONFIG_HWMON is not set
 CONFIG_DRM=y
 # CONFIG_DRM_FBDEV_EMULATION is not set