From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AB8JxZoDDRgRP1V18CXNv230foOjj8hU6VjtOU/sEeqxNjtxKY/NjkOaewcDc5t9hQIYL0p2rXt0 ARC-Seal: i=1; a=rsa-sha256; t=1524821061; cv=none; d=google.com; s=arc-20160816; b=sj/fIpgnPVQ7Nms3rLqI/z4brKENFKSwIiEe2tKCWrYVfhju/JdU7u/IN6lsFt+tkq RtARgZKdtY3mlW8F10+vfDchNTuRJyTIRugmjx3ECeEqTpRcUK2uh3S+fbjq9e5vrBTW nuqShOrMj42B4EyZniKwRmeWtdoHsGwaph69HWCsWq4zchEOXDN4IwpgXD920Q5hrFzJ IJ9kJgKSKIIcM1Ep7JKd611oB6NQxd6LxmHqX8FoZwyDOCwfTV9Awfy8fgBbb0WsvCKY JyFVdeO7JLLZ9ujmSdJkJkjjEPy9Xq+CURh90FNZbmvG9UnzmcZN5QYI2YTNlXuNmsFU bggA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=message-id:date:subject:cc:to:from:dmarc-filter :arc-authentication-results; bh=5a5O0+Lkd56EHQ35aJhKdgawOA58XKyiJ2GGnthWoak=; b=ntvt68bZFyNvSt5P1u4vo1A3jeN63qgIVopYqQzrTi+15dAJtgfx1LdNOw7edNuSHB /ISK5YxJDCAwlqJ/hCafKxjGqde4o1S1Voh3cSlj9QvHoDrPmFFZ3ZRf9R0uu/npbVvo gHLeM0pSp0/0N6Znz7oo9VmiBTSHQGj8HklsJ8A5/E5TMboxqHHoqBpqKLm4KpgFElfA Udjjw0rjGSqCZtJ3HuMWP6Kk53YK1lu06giqa202Ls9OQRar4bsytdCgK0X0qGo48ufG 1yvAHJcvTP2OZGmgjgroAaRHIFSJA4WwGGd2RqIo3NEiToSgxFid5zdpV44Utr/HHIPq V+pg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of matthias.bgg@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=matthias.bgg@kernel.org Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of matthias.bgg@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=matthias.bgg@kernel.org DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 901DB2185C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=matthias.bgg@kernel.org From: matthias.bgg@kernel.org 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, 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: [v3 00/10] arm/arm64: mediatek: Fix mmsys device probing Date: Fri, 27 Apr 2018 11:23:52 +0200 Message-Id: X-Mailer: git-send-email 2.16.3 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1598890769311881802?= X-GMAIL-MSGID: =?utf-8?q?1598890769311881802?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Matthias Brugger Changes since v2: - fix kconfig typo (shame on me) - delete __initconst from mm_clocks as converted to a platform driver Changes since v1: - add binding documentation - ddp: use regmap_update_bits - ddp: ignore EPROBE_DEFER on clock probing - mfd: delete mmsys_private - add Reviewed-by and Acked-by tags --- 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 (10): dt-bindings: mediatek: mmsys: Add support for mfd 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 drm: mediatek: Omit warning on probe defers MAINTAINERS: update Mediatek Soc entry .../bindings/arm/mediatek/mediatek,mmsys.txt | 2 - .../bindings/display/mediatek/mediatek,disp.txt | 2 +- .../devicetree/bindings/mfd/mediatek,mmsys.txt | 27 +++++++ MAINTAINERS | 2 + drivers/clk/mediatek/clk-mt2701-mm.c | 10 +-- drivers/clk/mediatek/clk-mt8173.c | 19 ++++- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 4 +- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 41 ++++------ drivers/gpu/drm/mediatek/mtk_drm_ddp.h | 4 +- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 33 ++++---- drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 +- drivers/mfd/Kconfig | 9 +++ drivers/mfd/Makefile | 2 + drivers/mfd/mtk-mmsys.c | 93 ++++++++++++++++++++++ 14 files changed, 190 insertions(+), 60 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/mediatek,mmsys.txt create mode 100644 drivers/mfd/mtk-mmsys.c -- 2.16.3