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[2001:1c00:c0c:fe00:fc7e:fd47:85c1:1ab3]) by smtp.gmail.com with ESMTPSA id q9sm2195041wrp.84.2020.03.31.01.16.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 31 Mar 2020 01:16:24 -0700 (PDT) Subject: Re: [PATCH] ACPI; update docs for "acpi_backlight" kernel parameter options To: Randy Dunlap , LKML , ACPI Devel Mailing List Cc: Zhang Rui , "Rafael J. Wysocki" , Len Brown References: <19409af2-f38a-6760-c7b3-aa5794a94df0@infradead.org> From: Hans de Goede Message-ID: Date: Tue, 31 Mar 2020 10:16:23 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <19409af2-f38a-6760-c7b3-aa5794a94df0@infradead.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 3/31/20 2:17 AM, Randy Dunlap wrote: > From: Randy Dunlap > > Update the Documentation for "acpi_backlight" by adding > 2 new options (native and none). > > Signed-off-by: Randy Dunlap > Cc: linux-acpi@vger.kernel.org > Cc: Zhang Rui > Cc: Hans de Goede > Cc: "Rafael J. Wysocki" > Cc: Len Brown Thanks! Patch looks good to me: Reviewed-by: Hans de Goede Regards, Hans > --- > Documentation/admin-guide/kernel-parameters.txt | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-) > > --- linux-next-20200330.orig/Documentation/admin-guide/kernel-parameters.txt > +++ linux-next-20200330/Documentation/admin-guide/kernel-parameters.txt > @@ -22,11 +22,13 @@ > default: 0 > > acpi_backlight= [HW,ACPI] > - acpi_backlight=vendor > - acpi_backlight=video > - If set to vendor, prefer vendor specific driver > + { vendor | video | native | none } > + If set to vendor, prefer vendor-specific driver > (e.g. thinkpad_acpi, sony_acpi, etc.) instead > of the ACPI video.ko driver. > + If set to video, use the ACPI video.ko driver. > + If set to native, use the device's native backlight mode. > + If set to none, disable the ACPI backlight interface. > > acpi_force_32bit_fadt_addr > force FADT to use 32 bit addresses rather than the >