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From:   Ulf Hansson <ulf.hansson@linaro.org>
Date:   Tue, 17 Nov 2020 12:27:00 +0100
Message-ID: <CAPDyKFpVJ0jGkqa2j9W-Z-su3vT2eSKHkObYj1Z0C3MvRQrKwg@mail.gmail.com>
Subject: Re: [PATCH v1 1/1] mmc: sdhci-of-arasan: Specify .clk_ops for Keem
 Bay SOC
To:     "Zulkifli, Muhammad Husaini" <muhammad.husaini.zulkifli@intel.com>
Cc:     "linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "Hunter, Adrian" <adrian.hunter@intel.com>,
        "Raja Subramanian, Lakshmi Bai" 
        <lakshmi.bai.raja.subramanian@intel.com>,
        "Wan Mohamad, Wan Ahmad Zainie" 
        <wan.ahmad.zainie.wan.mohamad@intel.com>,
        "David E. Box" <david.e.box@linux.intel.com>
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On Mon, 16 Nov 2020 at 15:22, Zulkifli, Muhammad Husaini
<muhammad.husaini.zulkifli@intel.com> wrote:
>
> Hi Ulf,
>
> Thanks for your review comments. I replied inline
>
> >-----Original Message-----
> >From: Ulf Hansson <ulf.hansson@linaro.org>
> >Sent: Monday, November 16, 2020 7:41 PM
> >To: Zulkifli, Muhammad Husaini <muhammad.husaini.zulkifli@intel.com>
> >Cc: linux-mmc@vger.kernel.org; Linux ARM <linux-arm-
> >kernel@lists.infradead.org>; Linux Kernel Mailing List <linux-
> >kernel@vger.kernel.org>; Hunter, Adrian <adrian.hunter@intel.com>; Raja
> >Subramanian, Lakshmi Bai <lakshmi.bai.raja.subramanian@intel.com>; Wan
> >Mohamad, Wan Ahmad Zainie
> ><wan.ahmad.zainie.wan.mohamad@intel.com>; David E. Box
> ><david.e.box@linux.intel.com>
> >Subject: Re: [PATCH v1 1/1] mmc: sdhci-of-arasan: Specify .clk_ops for Keem
> >Bay SOC
> >
> >On Fri, 6 Nov 2020 at 05:10, <muhammad.husaini.zulkifli@intel.com> wrote:
> >>
> >> From: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
> >>
> >> Commit 16ada730a759 ("mmc: sdhci-of-arasan: Modify clock operations
> >> handling") introduces platform specific SDHCI clock operation.
> >>
> >> This patch declares the clock operation for Keem Bay.
> >> Add clk_ops for SD, EMMC and SDIO operations.
> >
> >The above commit message doesn't really tell why or what goes on here.
> >Can please try to clarify that.
>
> We missed out the clock operation handling patch (Commit 16ada730a759)
> and did not handle the clk_ops  for Keem Bay SOC devices.
> These 2 patches (Commit 16ada730a759) and (Commit 36c6aadaae86)  are merged at around the same time.
> We catch the issue later when trying to boot into v5.10-rc1 with Keem Bay EVM.
> That is why I created this patch to handle the clk_ops for Keem Bay devices.

Alright, so the previous changes were simply not sufficient to
complete the support.

>
> >
> >>
> >> Fixes: 36c6aadaae86 ("mmc: sdhci-of-arasan: Add support for Intel Keem
> >> Bay")
> >
> >Is $subject patch fixing a bug/regression?
>
> This is to fix issue on previous commit. It is a bug fix.

Has it ever worked?

Did the commit you point to with the fixes tag, break some other
existing functionality?

[...]

Kind regards
Uffe