[PATCH 1/8] drm/mediatek: Use regmap for register access

Philipp Zabel
2018-04-20T10:00:19Z

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