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From: Philipp Zabel <p.zabel@pengutronix.de>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	ulrich.hecht+renesas@gmail.com,
	 laurent.pinchart@ideasonboard.com, ck.hu@mediatek.com,
	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,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org,
	Matthias Brugger <mbrugger@suse.com>
Subject: Re: [PATCH 1/8] drm/mediatek: Use regmap for register access
Date: Fri, 20 Apr 2018 12:00:19 +0200	[thread overview]
Message-ID: <1524218419.16259.7.camel@pengutronix.de> (raw)
In-Reply-To: <3fffe06c-f19b-ef26-a19d-771611aae158@gmail.com>

Hi Matthias,

On Fri, 2018-04-20 at 11:41 +0200, Matthias Brugger wrote:
> Hi Philipp,
> 
> On 11/23/2017 09:54 AM, Philipp Zabel wrote:
> > Hi Matthias,
> > 
> > On Tue, 2017-11-14 at 22:41 +0100, Matthias Brugger wrote:
> > > The mmsys memory space is shared between the drm and the
> > > clk driver. Use regmap to access it.
> > > 
> > > Signed-off-by: Matthias Brugger <mbrugger@suse.com>
> > > ---
> > >  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  | 13 ++++---------
> > >  drivers/gpu/drm/mediatek/mtk_drm_drv.h  |  2 +-
> > >  5 files changed, 26 insertions(+), 27 deletions(-)
> > 
> > [...]
> 
> [...]
> > >  	}
> > >  
> > >  	value = mtk_ddp_sel_in(cur, next, &addr);
> > >  	if (value) {
> > > -		reg = readl_relaxed(config_regs + addr) & ~value;
> > > -		writel_relaxed(reg, config_regs + addr);
> > > +		regmap_read(config_regs, addr, &reg);
> > > +		reg &= ~value;
> > > +		regmap_write(config_regs, addr, reg);
> > 
> > 		regmap_update_bits(config_regs, addr, value, 0);
> > 
> > Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
> > 
> 
> Thanks for having a look on that.
> 
> I'll update the next version with regmap_update_bits and leave your Reviewed-by,
> hope that's ok.

Yes, that's fine.

regards
Philipp

  reply	other threads:[~2018-04-20 10:00 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-14 21:41 [PATCH 0/8] arm/arm64: mediatek: Fix mmsys device probing Matthias Brugger
2017-11-14 21:41 ` [PATCH 1/8] drm/mediatek: Use regmap for register access Matthias Brugger
2017-11-23  5:44   ` CK Hu
2017-11-23  8:54   ` Philipp Zabel
2018-04-20  9:41     ` Matthias Brugger
2018-04-20 10:00       ` Philipp Zabel [this message]
2017-11-14 21:41 ` [PATCH 2/8] mfd: mtk-mmsys: Add mmsys driver Matthias Brugger
2017-11-23  9:04   ` CK Hu
2017-11-23 18:37     ` Matthias Brugger
2017-11-23  9:09   ` Philipp Zabel
2017-11-14 21:41 ` [PATCH 3/8] drm/mediatek: mt2701: switch to mfd probing Matthias Brugger
2017-11-23  5:48   ` CK Hu
2017-11-23  8:30     ` Matthias Brugger
2017-11-23  8:47       ` CK Hu
2017-11-23  9:12   ` Philipp Zabel
2017-11-14 21:41 ` [PATCH 4/8] clk: mediatek: mt2701-mm: switch to mfd device Matthias Brugger
2017-11-15  0:17   ` Stephen Boyd
2018-04-20 13:00     ` Matthias Brugger
2018-04-20 13:04       ` Matthias Brugger
2017-11-14 21:41 ` [PATCH 5/8] mfd: mtk-mmsys: Add mt8173 nodes Matthias Brugger
2017-11-23  9:13   ` Philipp Zabel
2017-11-14 21:41 ` [PATCH 6/8] drm/mediatek: Add mfd support for mt8173 Matthias Brugger
2017-11-23  8:51   ` CK Hu
2017-11-23  9:13   ` Philipp Zabel
2017-11-14 21:41 ` [PATCH 7/8] clk: mediatek: mt8173-mm: switch to mfd device Matthias Brugger
2017-11-15  0:16   ` Stephen Boyd
2017-11-14 21:41 ` [PATCH 8/8] MAINTAINERS: update Mediatek Soc entry Matthias Brugger

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