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[2001:1c00:c1e:bf00:1054:9d19:e0f0:8214]) by smtp.gmail.com with ESMTPSA id bm1sm1464617ejb.38.2021.11.03.10.28.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 03 Nov 2021 10:28:16 -0700 (PDT) Message-ID: <5d431db5-30dc-b51c-7abb-ab57a3de2f8f@redhat.com> Date: Wed, 3 Nov 2021 18:28:15 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [PATCH v2 3/3] backlight: lp855x: Add support ACPI enumeration To: Daniel Thompson References: <20211102225504.18920-1-hdegoede@redhat.com> <20211102225504.18920-3-hdegoede@redhat.com> <20211103171756.wxthncse2f4syeiz@maple.lan> From: Hans de Goede In-Reply-To: <20211103171756.wxthncse2f4syeiz@maple.lan> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=hdegoede@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jingoo Han , Lee Jones , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Tsuchiya Yuto Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi, On 11/3/21 18:17, Daniel Thompson wrote: > On Tue, Nov 02, 2021 at 11:55:04PM +0100, Hans de Goede wrote: >> The Xiaomi Mi Pad 2 tablet uses an ACPI enumerated LP8556 backlight >> controller for its LCD-panel, with a Xiaomi specific ACPI HID of >> "XMCC0001", add support for this. >> >> Note the new "if (id)" check also fixes a NULL pointer deref when a user >> tries to manually bind the driver from sysfs. >> >> When CONFIG_ACPI is disabled acpi_match_device() will always return NULL, >> so the lp855x_parse_acpi() call will get optimized away. >> >> Signed-off-by: Hans de Goede > > Reviewed-by: Daniel Thompson Thank you. So what is the process for upstreaming backlight patches, do these go through drm-misc-next (in that case I can push the series myself), or will you pick these up ? Regards, Hans