linux-kernel - Re: [PATCH 3/6] drm/rockchip: dsi: add ability to work as a phy instead of full dsi

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <12741091.uLZWGnKmhe@diego>
Date:   Wed, 24 Mar 2021 15:52:59 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     dri-devel@...ts.freedesktop.org,
        Helen Koike <helen.koike@...labora.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        hjc@...k-chips.com, robh+dt@...nel.org,
        sebastian.fricke@...teo.net, linux-media@...r.kernel.org,
        dafna.hirschfeld@...labora.com, ezequiel@...labora.com,
        cmuellner@...ux.com
Subject: Re: [PATCH 3/6] drm/rockchip: dsi: add ability to work as a phy instead of full dsi

Am Montag, 15. Februar 2021, 15:33:19 CET schrieb Helen Koike:
> > From: Heiko Stuebner <heiko.stuebner@...obroma-systems.com>
> > diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
> > index cb25c0e8fc9b..3094d4533ad6 100644
> > --- a/drivers/gpu/drm/rockchip/Kconfig
> > +++ b/drivers/gpu/drm/rockchip/Kconfig
> > @@ -9,6 +9,8 @@ config DRM_ROCKCHIP
> >   	select DRM_ANALOGIX_DP if ROCKCHIP_ANALOGIX_DP
> >   	select DRM_DW_HDMI if ROCKCHIP_DW_HDMI
> >   	select DRM_DW_MIPI_DSI if ROCKCHIP_DW_MIPI_DSI
> > +	select GENERIC_PHY if ROCKCHIP_DW_MIPI_DSI
> > +	select GENERIC_PHY_MIPI_DPHY if ROCKCHIP_DW_MIPI_DSI
> 
> maybe alphabetical order?

ok

> > +static int dw_mipi_dsi_dphy_power_on(struct phy *phy)
> > +{
> > +	struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
> > +	int i, ret;
> 
> It seems "i" could be removed, use ret instead.

I don't think so

I.e. the driver does

	i = max_mbps_to_parameter(...)
	...
	ret = power-on-clocks-and-stuff
	...
	dw_mipi_dsi_phy_write(.... dppa_map[i].hsfreqrange)

So will need to keep the param index separate.


> In general, the patch doesn't look wrong to me.
> 
> For the whole serie:
> Acked-by: Helen Koike <helen.koike@...labora.com>

Thanks a lot :-)


Heiko