linux-kernel - Re: [PATCH v12 2/3] dt-bindings: hwmon: Support Aspeed g6 PWM TACH Control

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Date: Mon, 15 Jan 2024 08:56:27 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Billy Tsai <billy_tsai@...eedtech.com>, Rob Herring <robh@...nel.org>
Cc: "jdelvare@...e.com" <jdelvare@...e.com>,
 "linux@...ck-us.net" <linux@...ck-us.net>,
 "krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
 "joel@....id.au" <joel@....id.au>, "andrew@...id.au" <andrew@...id.au>,
 "corbet@....net" <corbet@....net>,
 "thierry.reding@...il.com" <thierry.reding@...il.com>,
 "u.kleine-koenig@...gutronix.de" <u.kleine-koenig@...gutronix.de>,
 "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
 "naresh.solanki@...ements.com" <naresh.solanki@...ements.com>,
 "linux-hwmon@...r.kernel.org" <linux-hwmon@...r.kernel.org>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
 "linux-arm-kernel@...ts.infradead.org"
 <linux-arm-kernel@...ts.infradead.org>,
 "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
 "linux-pwm@...r.kernel.org" <linux-pwm@...r.kernel.org>,
 BMC-SW <BMC-SW@...eedtech.com>, "patrick@...cx.xyz" <patrick@...cx.xyz>
Subject: Re: [PATCH v12 2/3] dt-bindings: hwmon: Support Aspeed g6 PWM TACH
 Control

On 15/01/2024 08:05, Billy Tsai wrote:
>>> +examples:
>>> +  - |
>>> +    #include <dt-bindings/clock/aspeed-clock.h>
>>> +    pwm_tach: pwm-tach-controller@...10000 {
>>> +      compatible = "aspeed,ast2600-pwm-tach";
>>> +      reg = <0x1e610000 0x100>;
>>> +      clocks = <&syscon ASPEED_CLK_AHB>;
>>> +      resets = <&syscon ASPEED_RESET_PWM>;
>>> +      #pwm-cells = <3>;
>>> +
>>> +      fan-0 {
>>> +        tach-ch = /bits/ 8 <0x0>;
>>> +      };
>>> +
>>> +      fan-1 {
>>> +        tach-ch = /bits/ 8 <0x1 0x2>;
>>> +      };
> 
>> NAK on this based on how you are using pwm-fan in v10 discussion. See my
>> comments there.
> 
> Okay, I will merge everything from the pwm-fan0 node into the fan-0 node
> and add the 'simple-bus' to the compatible string of the pwm_tach node.

What simple-bus has anything to do with it? This is not a bus. Just to
remind: we talk about bindings, not driver.

Best regards,
Krzysztof