2019-05-28 09:45:41

by Eugeniy Paltsev

Subject: [PATCH] ARC: [plat-hsdk]: enable creg-gpio controller

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 <[email protected]>
---
arch/arc/boot/dts/hsdk.dts | 8 ++++++++
arch/arc/configs/hsdk_defconfig | 1 +
2 files changed, 9 insertions(+)

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
--
2.21.0

2019-05-28 12:06:44

by Alexey Brodkin

Subject: RE: [PATCH] ARC: [plat-hsdk]: enable creg-gpio controller

Hi Eugeniy,

> -----Original Message-----
> From: Eugeniy Paltsev <[email protected]>
> Sent: Tuesday, May 28, 2019 12:41 PM
> To: [email protected]; Vineet Gupta <[email protected]>
> Cc: [email protected]; Alexey Brodkin <[email protected]>; Eugeniy Paltsev
> <[email protected]>
> 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 <[email protected]>

Adding Rob to the Cc list.

-Alexey

2019-05-28 17:10:07

by Vineet Gupta

Subject: Re: [PATCH] ARC: [plat-hsdk]: enable creg-gpio controller

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 <[email protected]>

Added to for-curr

Thx,
-Vineet