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From:   rentao.bupt@gmail.com
To:     Rob Herring <robh+dt@kernel.org>, Joel Stanley <joel@jms.id.au>,
        Andrew Jeffery <andrew@aj.id.au>, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        openbmc@lists.ozlabs.org, taoren@fb.com
Cc:     Tao Ren <rentao.bupt@gmail.com>
Subject: [PATCH 3/3] ARM: dts: aspeed: wedge40: enable pwm_tacho device
Date:   Mon, 29 Jun 2020 17:08:51 -0700
Message-Id: <20200630000851.26879-4-rentao.bupt@gmail.com>
In-Reply-To: <20200630000851.26879-1-rentao.bupt@gmail.com>
References: <20200630000851.26879-1-rentao.bupt@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
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From: Tao Ren <rentao.bupt@gmail.com>

Enable pwm_tacho device for fan control and monitoring in Wedge40.

Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
---
 .../boot/dts/aspeed-bmc-facebook-wedge40.dts  | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-wedge40.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-wedge40.dts
index 1049cfa80ac2..8ac23ff6b09e 100644
--- a/arch/arm/boot/dts/aspeed-bmc-facebook-wedge40.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-wedge40.dts
@@ -135,3 +135,32 @@
 &adc {
 	status = "okay";
 };
+
+&pwm_tacho {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default
+		     &pinctrl_pwm1_default
+		     &pinctrl_pwm6_default
+		     &pinctrl_pwm7_default>;
+
+	fan@0 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00 0x01>;
+	};
+
+	fan@1 {
+		reg = <0x01>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x02 0x03>;
+	};
+
+	fan@6 {
+		reg = <0x06>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x04 0x05>;
+	};
+
+	fan@7 {
+		reg = <0x07>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x06 0x07>;
+	};
+};
-- 
2.17.1