From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751019AbeDNKZM (ORCPT ); Sat, 14 Apr 2018 06:25:12 -0400 Received: from mail-io0-f193.google.com ([209.85.223.193]:39362 "EHLO mail-io0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750883AbeDNKZJ (ORCPT ); Sat, 14 Apr 2018 06:25:09 -0400 X-Google-Smtp-Source: AIpwx494Jqh+Ic0ZPH/17+PyZygZ+Drzhb4EBU9OV7IDKftoT3rj7irDAsRC0rF3pDO9aZ0V9DRdf0t/ME85aLang/4= MIME-Version: 1.0 In-Reply-To: <20180316175354.21437-4-icenowy@aosc.io> References: <20180316175354.21437-1-icenowy@aosc.io> <20180316175354.21437-4-icenowy@aosc.io> From: Jagan Teki Date: Sat, 14 Apr 2018 15:55:08 +0530 Message-ID: Subject: Re: [PATCH 3/7] bus: add bus driver for accessing Allwinner A64 DE2 To: Icenowy Zheng Cc: Rob Herring , Maxime Ripard , Chen-Yu Tsai , devicetree , linux-arm-kernel , linux-kernel , linux-clk@vger.kernel.org, linux-sunxi Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 16, 2018 at 11:23 PM, Icenowy Zheng wrote: > The "Display Engine 2.0" (usually called DE2) on the Allwinner A64 SoC > is different from the ones on other Allwinner SoCs. It requires a SRAM > region to be claimed, otherwise all DE2 subblocks won't be accessible. > > Add a bus driver for the Allwinner A64 DE2 part which claims the SRAM > region when probing. Along with this bus driver, we also need drivers/gpu/drm/sun4i/sun4i_drv.c which can usually drive the pipelines like mixer0 and 1 are the cases for A64? Jagan. -- Jagan Teki Senior Linux Kernel Engineer | Amarula Solutions U-Boot, Linux | Upstream Maintainer Hyderabad, India. From mboxrd@z Thu Jan 1 00:00:00 1970 From: jagan@amarulasolutions.com (Jagan Teki) Date: Sat, 14 Apr 2018 15:55:08 +0530 Subject: [PATCH 3/7] bus: add bus driver for accessing Allwinner A64 DE2 In-Reply-To: <20180316175354.21437-4-icenowy@aosc.io> References: <20180316175354.21437-1-icenowy@aosc.io> <20180316175354.21437-4-icenowy@aosc.io> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Mar 16, 2018 at 11:23 PM, Icenowy Zheng wrote: > The "Display Engine 2.0" (usually called DE2) on the Allwinner A64 SoC > is different from the ones on other Allwinner SoCs. It requires a SRAM > region to be claimed, otherwise all DE2 subblocks won't be accessible. > > Add a bus driver for the Allwinner A64 DE2 part which claims the SRAM > region when probing. Along with this bus driver, we also need drivers/gpu/drm/sun4i/sun4i_drv.c which can usually drive the pipelines like mixer0 and 1 are the cases for A64? Jagan. -- Jagan Teki Senior Linux Kernel Engineer | Amarula Solutions U-Boot, Linux | Upstream Maintainer Hyderabad, India.