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[80.7.220.175]) by smtp.gmail.com with ESMTPSA id a9sm2575261wrt.66.2021.11.03.10.31.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Nov 2021 10:31:09 -0700 (PDT) Date: Wed, 3 Nov 2021 17:31:07 +0000 From: Daniel Thompson To: Hans de Goede Subject: Re: [PATCH v2 3/3] backlight: lp855x: Add support ACPI enumeration Message-ID: <20211103173107.xlchsysme5xzpn24@maple.lan> References: <20211102225504.18920-1-hdegoede@redhat.com> <20211102225504.18920-3-hdegoede@redhat.com> <20211103171756.wxthncse2f4syeiz@maple.lan> <5d431db5-30dc-b51c-7abb-ab57a3de2f8f@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5d431db5-30dc-b51c-7abb-ab57a3de2f8f@redhat.com> 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" On Wed, Nov 03, 2021 at 06:28:15PM +0100, Hans de Goede wrote: > 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 ? Lee Jones gathers up the backlight patches and sends a PR (but, except in exceptional cases, treats my R-b as a pre-requisite before doing so). Daniel.