From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bibby Hsieh Subject: [PATCH v10 03/12] dt-binding: gce: add binding for gce client reg property Date: Mon, 1 Jul 2019 15:48:33 +0800 Message-ID: <20190701074842.15401-4-bibby.hsieh@mediatek.com> References: <20190701074842.15401-1-bibby.hsieh@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190701074842.15401-1-bibby.hsieh-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+glpam-linux-mediatek=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: Jassi Brar , Matthias Brugger , Rob Herring , CK HU Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Nicolas Boichat , Philipp Zabel , srv_heupstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, Daoyuan Huang , Sascha Hauer , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Dennis-YC Hsieh , linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Houlong Wei , Sascha Hauer , Jiaguang Zhang , Bibby Hsieh , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, ginny.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org List-Id: devicetree@vger.kernel.org cmdq driver provide a function that get the relationship of sub system number from device node for client. add specification for #subsys-cells, mediatek,gce-client-reg. Signed-off-by: Bibby Hsieh --- .../devicetree/bindings/mailbox/mtk-gce.txt | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt b/Documentation/devicetree/bindings/mailbox/mtk-gce.txt index 1f7f8f2a3f49..d48282d6b02d 100644 --- a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt +++ b/Documentation/devicetree/bindings/mailbox/mtk-gce.txt @@ -21,12 +21,21 @@ Required properties: priority: Priority of GCE thread. atomic_exec: GCE processing continuous packets of commands in atomic way. +- #subsys-cells: Should be 3. + <&phandle subsys_number start_offset size> + phandle: Label name of a gce node. + subsys_number: specify the sub-system id which is corresponding + to the register address. + start_offset: the start offset of register address that GCE can access. + size: the total size of register address that GCE can access. Required properties for a client device: - mboxes: Client use mailbox to communicate with GCE, it should have this property and list of phandle, mailbox specifiers. -- mediatek,gce-subsys: u32, specify the sub-system id which is corresponding - to the register address. +Optional properties for a client device: +- mediatek,gce-client-reg: Specify the sub-system id which is corresponding + to the register address, it should have this property and list of phandle, + sub-system specifiers. Some vaules of properties are defined in 'dt-bindings/gce/mt8173-gce.h' or 'dt-binding/gce/mt8183-gce.h'. Such as sub-system ids, thread priority, event ids. @@ -40,6 +49,7 @@ Example: clocks = <&infracfg CLK_INFRA_GCE>; clock-names = "gce"; #mbox-cells = <3>; + #subsys-cells = <3>; }; Example for a client device: @@ -48,9 +58,9 @@ Example for a client device: compatible = "mediatek,mt8173-mmsys"; mboxes = <&gce 0 CMDQ_THR_PRIO_LOWEST 1>, <&gce 1 CMDQ_THR_PRIO_LOWEST 1>; - mediatek,gce-subsys = ; mutex-event-eof = ; - + mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x3000 0x1000>, + <&gce SUBSYS_1401XXXX 0x2000 0x100>; ... }; -- 2.18.0