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From: Chen-Yu Tsai <wenst@chromium.org>
To: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chun-Jie Chen <chun-jie.chen@mediatek.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Nicolas Boichat <drinkcat@chromium.org>,
	Rob Herring <robh+dt@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
	linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
	srv_heupstream@mediatek.com,
	Project_Global_Chrome_Upstream_Group@mediatek.com
Subject: Re: [PATCH 03/22] clk: mediatek: Fix corner case of tuner_en_reg
Date: Wed, 30 Jun 2021 19:09:40 +0800	[thread overview]
Message-ID: <CAGXv+5FXuMnhsnytLYKKA9YE97bps7KnkDNADvv8f_wdTqnrfg@mail.gmail.com> (raw)
In-Reply-To: <ff6179e8-06f9-fbba-c704-a74381c2149a@gmail.com>

On Wed, Jun 30, 2021 at 6:53 PM Matthias Brugger <matthias.bgg@gmail.com> wrote:
>
>
>
> On 30/06/2021 09:31, Chen-Yu Tsai wrote:
> > On Thu, Jun 17, 2021 at 7:01 AM Chun-Jie Chen
> > <chun-jie.chen@mediatek.com> wrote:
> >>
> >> On MT8195, tuner_en_reg is moved to register offest 0x0.
> >> If we only judge by tuner_en_reg, it may lead to wrong address.
> >> Add tuner_en_bit to the check condition. And it has been confirmed,
> >> on all the MediaTek SoCs, bit0 of offset 0x0 is always occupied by
> >> clock square control.
> >>
> >> Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
> >
> > Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
> >
> > Though you might want to consider converting these types of checks into feature
> > flags.
> >
>
> Yes I think adding a feature flag is the way to go. Luckily there are only a few
> SoCs that will need updates at the same time.

I also see that the different clock modules are tied together using only clock
names written in the drivers, instead of clock references in the device tree.

Unfortunately reworking this would likely require a lot more work. I previously
did a bit of internal reworking for the sunxi drivers. While not the same, I
think the plumbing required is comparable.

ChenYu

  reply	other threads:[~2021-06-30 11:09 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-16 22:47 [PATCH 00/22] Mediatek MT8195 clock support Chun-Jie Chen
2021-06-16 22:47 ` [PATCH 01/22] dt-bindings: ARM: Mediatek: Add new document bindings of MT8195 clock Chun-Jie Chen
2021-06-24 21:21   ` Rob Herring
2021-07-12  9:32   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 02/22] clk: mediatek: Add dt-bindings of MT8195 clocks Chun-Jie Chen
2021-06-24 21:22   ` Rob Herring
2021-07-12  9:37   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 03/22] clk: mediatek: Fix corner case of tuner_en_reg Chun-Jie Chen
2021-06-30  7:31   ` Chen-Yu Tsai
2021-06-30 10:53     ` Matthias Brugger
2021-06-30 11:09       ` Chen-Yu Tsai [this message]
2021-06-30 11:43         ` Matthias Brugger
2021-07-01  4:02           ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 04/22] clk: mediatek: Add MT8195 basic clocks support Chun-Jie Chen
2021-07-02 11:44   ` Chen-Yu Tsai
     [not found]     ` <1626913060.1546.4.camel@mtksdaap41>
2021-07-22  7:44       ` Chen-Yu Tsai
2021-08-11  4:31         ` Chun-Jie Chen
2021-06-16 22:47 ` [PATCH 05/22] clk: mediatek: Add MT8195 audio clock support Chun-Jie Chen
2021-07-05  9:03   ` Chen-Yu Tsai
2021-07-12  1:26     ` Chun-Jie Chen
2021-07-12  2:09       ` Chen-Yu Tsai
2021-07-12  4:35         ` Chun-Jie Chen
2021-07-12  7:06           ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 06/22] clk: mediatek: Add MT8195 audio src " Chun-Jie Chen
2021-07-05 10:07   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 07/22] clk: mediatek: Add MT8195 camsys " Chun-Jie Chen
2021-07-06  8:53   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 08/22] clk: mediatek: Add MT8195 ccusys " Chun-Jie Chen
2021-07-06  9:00   ` Chen-Yu Tsai
2021-08-17  0:56     ` Chun-Jie Chen
2021-06-16 22:47 ` [PATCH 09/22] clk: mediatek: Add MT8195 imgsys " Chun-Jie Chen
2021-07-06  9:07   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 10/22] clk: mediatek: Add MT8195 ipesys " Chun-Jie Chen
2021-07-06  9:11   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 11/22] clk: mediatek: Add MT8195 mfgcfg " Chun-Jie Chen
2021-07-09  6:29   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 12/22] clk: mediatek: Add MT8195 scp adsp " Chun-Jie Chen
2021-07-09  6:39   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 13/22] clk: mediatek: Add MT8195 nnasys " Chun-Jie Chen
2021-07-09  8:24   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 14/22] clk: mediatek: Add MT8195 vdecsys " Chun-Jie Chen
2021-07-09  8:40   ` Chen-Yu Tsai
2021-07-12  1:34     ` Chun-Jie Chen
2021-06-16 22:47 ` [PATCH 15/22] clk: mediatek: Add MT8195 vdosys0 " Chun-Jie Chen
2021-07-09  8:51   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 16/22] clk: mediatek: Add MT8195 vdosys1 " Chun-Jie Chen
2021-07-09  9:30   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 17/22] clk: mediatek: Add MT8195 vencsys " Chun-Jie Chen
2021-07-09 10:26   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 18/22] clk: mediatek: Add MT8195 vppsys0 " Chun-Jie Chen
2021-07-09 10:38   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 19/22] clk: mediatek: Add MT8195 vppsys1 " Chun-Jie Chen
2021-07-09 10:45   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 20/22] clk: mediatek: Add MT8195 wpesys " Chun-Jie Chen
2021-08-25 11:26   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 21/22] clk: mediatek: Add MT8195 imp i2c wrapper " Chun-Jie Chen
2021-07-12  8:34   ` Chen-Yu Tsai
2021-06-16 22:47 ` [PATCH 22/22] clk: mediatek: Add MT8195 apusys " Chun-Jie Chen
2021-07-12  8:51   ` Chen-Yu Tsai

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