linux-kernel - Re: [RFC PATCH 0/4] Add RGB ttl connection on rockchip phy

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Message-ID: <CAOf5uw=2zjki8DEkgvDTKrj6V=FS44Z1WN3AvFZvzuN-MU_y4Q@mail.gmail.com>
Date:   Mon, 19 Dec 2022 13:35:02 +0100
From:   Michael Nazzareno Trimarchi <michael@...rulasolutions.com>
To:     Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org, linux-amarula@...rulasolutions.com
Subject: Re: [RFC PATCH 0/4] Add RGB ttl connection on rockchip phy

Hi all

On Sun, Oct 2, 2022 at 8:45 AM Michael Trimarchi
<michael@...rulasolutions.com> wrote:
>
> The rockchip phy can be convigured in ttl mode. The phy is shared
> between lvds, dsi, ttl. The configuration that now I'm able to support
> has the display output on some set of pins on standard vop output
> and a set of pins using the ttl phy. The solution is not clean as I
> would like to have because some register that are used to enable
> the TTL, are in the same register area of the dsi controller.
> In order to test I must add the following
>
> dsi_dphy: phy@...e0000 {
>
>         reg = <0x0 0xff2e0000 0x0 0x10000>,
>                 <0x0 0xff450000 0x0 0x10000>;
>         ...
> }
>
> The problem here is the second region I have added is the same of
> dsi logic. Only one register is needed by the the phy driver
>

Is there anyone who has time to review it?

Michael

> Michael Trimarchi (4):
>   phy: add PHY_MODE_TTL
>   phy: rockchip: Add inno_is_valid_phy_mode
>   phy: rockchip: Implement TTY phy mode
>   drm/rockchip: rgb: Add dphy connection to rgb output
>
>  drivers/gpu/drm/rockchip/rockchip_rgb.c       | 18 +++++
>  .../phy/rockchip/phy-rockchip-inno-dsidphy.c  | 72 +++++++++++++++++++
>  include/linux/phy/phy.h                       |  3 +-
>  3 files changed, 92 insertions(+), 1 deletion(-)
>
> --
> 2.34.1
>


-- 
Michael Nazzareno Trimarchi
Co-Founder & Chief Executive Officer
M. +39 347 913 2170
michael@...rulasolutions.com
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