From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756867AbdKNVl5 (ORCPT ); Tue, 14 Nov 2017 16:41:57 -0500 Received: from mail-wr0-f193.google.com ([209.85.128.193]:45780 "EHLO mail-wr0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753132AbdKNVlu (ORCPT ); Tue, 14 Nov 2017 16:41:50 -0500 X-Google-Smtp-Source: AGs4zMZsRqQUKJz5w2Gl2/bicF0b7Z/nbmSKHwSW47U8X+1WNIn8e3IKPADPHpoepxSN4bPD/nUCLQ== From: Matthias Brugger X-Google-Original-From: Matthias Brugger To: ulrich.hecht+renesas@gmail.com, laurent.pinchart@ideasonboard.com, ck.hu@mediatek.com, p.zabel@pengutronix.de, airlied@linux.ie, robh+dt@kernel.org, mark.rutland@arm.com, mturquette@baylibre.com, sboyd@codeaurora.org, lee.jones@linaro.org Cc: davem@davemloft.net, gregkh@linuxfoundation.org, mchehab@kernel.org, rdunlap@infradead.org, pi-cheng.chen@linaro.org, sean.wang@mediatek.com, linux-clk@vger.kernel.org, linux@armlinux.org.uk, matthias.bgg@gmail.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Matthias Brugger Subject: [PATCH 0/8] arm/arm64: mediatek: Fix mmsys device probing Date: Tue, 14 Nov 2017 22:41:06 +0100 Message-Id: <20171114214114.15793-1-mbrugger@suse.com> X-Mailer: git-send-email 2.14.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org MMSYS in Mediatek SoCs has some registers to control clock gates (which is used in the clk driver) and some registers to set the routing and enable the differnet blocks of the display subsystem. Up to now both drivers, clock and drm are probed with the same device tree compatible. But only the first driver get probed, which in effect breaks graphics on mt8173 and mt2701. This patch set introduces a new mfd device, which binds against the mmsys compatible and takes care of probing the needed devices. It was tested on the bananapi-r2 and the Acer R13 Chromebook. Matthias Brugger (8): drm/mediatek: Use regmap for register access mfd: mtk-mmsys: Add mmsys driver drm/mediatek: mt2701: switch to mfd probing. clk: mediatek: mt2701-mm: switch to mfd device mfd: mtk-mmsys: Add mt8173 nodes drm/mediatek: Add mfd support for mt8173 clk: mediatek: mt8173-mm: switch to mfd device MAINTAINERS: update Mediatek Soc entry MAINTAINERS | 2 + drivers/clk/mediatek/clk-mt2701-mm.c | 13 ++-- drivers/clk/mediatek/clk-mt8173.c | 21 ++++++- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 4 +- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 30 +++++---- drivers/gpu/drm/mediatek/mtk_drm_ddp.h | 4 +- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 35 ++++++----- drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 +- drivers/mfd/Kconfig | 9 +++ drivers/mfd/Makefile | 2 + drivers/mfd/mtk-mmsys.c | 105 ++++++++++++++++++++++++++++++++ include/linux/mfd/mmsys.h | 18 ++++++ 12 files changed, 200 insertions(+), 45 deletions(-) create mode 100644 drivers/mfd/mtk-mmsys.c create mode 100644 include/linux/mfd/mmsys.h -- 2.14.2