linux-kernel - Re: [PATCH 0/4] mmc: dw_mmc: start deprecating mshcN aliases

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Date:   Wed, 24 Nov 2021 20:24:56 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     John Keeping <john@...anate.com>
Cc:     linux-mmc@...r.kernel.org, Heiko Stuebner <heiko@...ech.de>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH 0/4] mmc: dw_mmc: start deprecating mshcN aliases

On Wed, 24 Nov 2021 at 19:46, John Keeping <john@...anate.com> wrote:
>
> This series is prompted by discussion on a previous patch set [1] but is
> a totally different approach and only a partial solution.
>
> With these patches, the dependency on the mshcN alias is totally removed
> from dw_mmc-hi3798cv200 and dw_mmc-rockchip and dw_mmc-exynos moves
> towards being able to consider the mshcN aliases deprecated.
>
> I haven't changed dw_mci_hi6220_caps here, although it looks like it's
> possible to apply MMC_CAP_CMD23 to all controllers there with no change
> in behaviour as the final entry is SDIO for which CMD23 is not
> applicable IIUC.  But I'm not familiar with that hardware and don't feel
> confident making that change.
>
> [1] https://lore.kernel.org/all/20211116190244.1417591-1-john@metanate.com/
>
> John Keeping (4):
>   mmc: dw_mmc: add common capabilities to replace caps
>   mmc: dw_mmc: hi3798cv200: use common_caps
>   mmc: dw_mmc: rockchip: use common_caps
>   mmc: dw_mmc: exynos: use common_caps
>
>  drivers/mmc/host/dw_mmc-exynos.c      |  9 +++++----
>  drivers/mmc/host/dw_mmc-hi3798cv200.c |  9 +--------
>  drivers/mmc/host/dw_mmc-rockchip.c    | 11 +----------
>  drivers/mmc/host/dw_mmc.c             |  3 +++
>  drivers/mmc/host/dw_mmc.h             |  3 +++
>  5 files changed, 13 insertions(+), 22 deletions(-)
>
> --
> 2.34.0
>

This looks good to me, I intend to apply this later this week, unless
objections of course.

In the meantime, I will continue to look at what we can do to resolve
the exynos/k3 issues around this.

Kind regards
Uffe