On Wednesday 26 July 2017 07:03 PM, Russell King - ARM Linux wrote:

On Wed, Jul 26, 2017 at 06:59:58PM +0530, Keerthy wrote:

quoted

quoted

quoted

+
+		gpio0: gpio at 2603000 {
+			compatible = "ti,keystone-k2g-gpio", "ti,keystone-gpio";
+			reg = <0x02603000 0x100>;
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			interrupts = <GIC_SPI 432 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 433 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 434 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 435 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 436 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 437 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 438 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 439 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 440 IRQ_TYPE_EDGE_RISING>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			ti,ngpio = <144>;
+			ti,davinci-gpio-unbanked = <0>;
+			clocks = <&k2g_clks 0x001b 0x0>;
+			clock-names = "gpio";
+		};
+
+		gpio1: gpio at 260a000 {
+			compatible = "ti,keystone-k2g-gpio", "ti,keystone-gpio";
+			reg = <0x0260a000 0x100>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupts = <GIC_SPI 442 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 443 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 444 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 445 IRQ_TYPE_EDGE_RISING>,
+					<GIC_SPI 446 IRQ_TYPE_EDGE_RISING>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			ti,ngpio = <68>;
+			ti,davinci-gpio-unbanked = <0>;
+			clocks = <&k2g_clks 0x001c 0x0>;
+			clock-names = "gpio";
+		};

With the addition of GPIO support, does that mean there is a chance to
control the noisy fan via the kernel's thermal management?  Do we have
temperature sensor support for Keystone 2 ?

Russell,

GPIO support using davinci driver for K2HK/L/E was there for a long time
here: arch/arm/boot/dts/keystone.dtsi

commit 970c225636ac4ae98739094d6b6bbf2bdc3694f9
Author: Grygorii Strashko [off-list ref]
Date:   Mon Feb 10 18:41:18 2014 +0200

    ARM: dts: keystone: add gpio device entry

I have only added the k2g nodes now as it is different compared to other
keystone 2 platforms.

I believe there is no temperature sensor support for Keystone 2 yet.

Regards,
Keerthy