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bh=bsmfEqZyHLXQYIDEHlob9aAnGjDF7uO/0bK6CtZNc4o=; b=aq4ynrhZc4js0ict0rZgV8duNKiosjAxnarexmSNsp9E9q0dnRTM0u1B+cvSoIeTAd morWS4YR8I8qifEqj7FAiqJUxtdnDLejow1N/gV1Te4czsLNpj3BLoJBtzFk6P8trE0h Tk9n4/0ne+GrMxswoG6AYUx+yliu0OLFk7RQ2+X+i7cOj1WvQrPv6K7iENIgAp87iTuV US2fxAJEV+yPVQO+1h3OWC1q2AXWY1Q9gqAusPPPV8nO3bmzZFYUquNf92tKrqLK8sYz CppjAnNx0x71d//IOqHZneheW9E0ADgyBqzp8lRN0fcgYKee1TSqX0B/jtK1ZcgwkBBg 1QsA== X-Gm-Message-State: AOJu0YwhmYt8K4hiDeLL0Yxx1ZjNqI5+DMsaSpweFa8lYU8GVSb1964O K+fcf6P8G3vLBdHM/w80OtrfJA== X-Google-Smtp-Source: AGHT+IF9cFcbABaZ1rzrsL5Af7aCgLA33g5E+q1qAw1ZEVp1MYxE2yYrhDyN01QLgCq+ioiG13m+ng== X-Received: by 2002:a17:906:dace:b0:9ae:55ae:587f with SMTP id xi14-20020a170906dace00b009ae55ae587fmr18187072ejb.37.1699353778191; Tue, 07 Nov 2023 02:42:58 -0800 (PST) Received: from [192.168.1.20] ([178.197.218.126]) by smtp.gmail.com with ESMTPSA id a23-20020a1709063a5700b009bf7a4d591bsm886616ejf.45.2023.11.07.02.42.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Nov 2023 02:42:57 -0800 (PST) Message-ID: <3d9e50db-19f0-43b3-8042-2f80a1e7b79e@linaro.org> Date: Tue, 7 Nov 2023 11:42:54 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v10 0/3] Support pwm/tach driver for aspeed ast26xx Content-Language: en-US To: Billy Tsai , jdelvare@suse.com, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, joel@jms.id.au, andrew@aj.id.au, corbet@lwn.net, thierry.reding@gmail.com, u.kleine-koenig@pengutronix.de, p.zabel@pengutronix.de, naresh.solanki@9elements.com, linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-pwm@vger.kernel.org, BMC-SW@aspeedtech.com, patrick@stwcx.xyz References: <20231107103955.1166655-1-billy_tsai@aspeedtech.com> From: Krzysztof Kozlowski Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/11/2023 11:39, Billy Tsai wrote: > Unlike the old design that the register setting of the TACH should based > on the configure of the PWM. In ast26xx, the dependency between pwm and > tach controller is eliminated and becomes a separate hardware block. One > is used to provide pwm output and another is used to monitor the frequency > of the input. This driver implements them by exposing two kernel > subsystems: PWM and HWMON. The PWM subsystem can be utilized alongside > existing drivers for controlling elements such as fans (pwm-fan.c), > beepers (pwm-beeper.c) and so on. Through the HWMON subsystem, the driver > provides sysfs interfaces for fan. > > Changes since v9: > Change the type of fan-driving-mode to string > Fix some typos and formatting issues. Please run scripts/checkpatch.pl and fix reported warnings. Some warnings can be ignored, but the code here looks like it needs a fix. Feel free to get in touch if the warning is not clear. Best regards, Krzysztof