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From: robh@kernel.org (Rob Herring)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 1/2] dt-bindings: mmc: broken clock stable indicator on arasan controllers
Date: Wed, 20 Jun 2018 13:08:28 -0600	[thread overview]
Message-ID: <20180620190828.GA26510@rob-hp-laptop> (raw)
In-Reply-To: <12953dbf9af1f1a71aaf3ef77782e56a2a7ad893.1529493667.git.h.grohne@intenta.de>

On Wed, Jun 20, 2018 at 01:32:51PM +0200, Helmut Grohne wrote:
> Some controllers immediately report that their internal clock is stable
> after activating it even when the clock is not stable. When used in
> conjunction with older/slower cards, this can result in:
> 
>     mmc0: error -84 whilst initialising SD card
> 
> This flag allows documenting and thus working around such a hardware
> defect.
> 
> Signed-off-by: Helmut Grohne <h.grohne@intenta.de>
> Acked-by: Adrian Hunter <adrian.hunter@intel.com>
> ---
>  Documentation/devicetree/bindings/mmc/arasan,sdhci.txt | 2 ++
>  1 file changed, 2 insertions(+)

Reviewed-by: Rob Herring <robh@kernel.org>

  reply	other threads:[~2018-06-20 19:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-04  6:42 [RFC PATCH] sdhci-of-arasan: card initialization failure -84 Helmut Grohne
2018-06-14  7:14 ` Adrian Hunter
2018-06-14  7:19 ` Adrian Hunter
2018-06-15  8:18   ` [PATCH v2] mmc: sdhci-of-arasan: Add quirk for unstable clocks Helmut Grohne
2018-06-18  8:59     ` Ulf Hansson
2018-06-19  9:09     ` Adrian Hunter
2018-06-20 11:32     ` [PATCH v3 0/2] mmc: sdhci-of-arasan: workaround for broken clocks Helmut Grohne
2018-06-20 11:32       ` [PATCH v3 1/2] dt-bindings: mmc: broken clock stable indicator on arasan controllers Helmut Grohne
2018-06-20 19:08         ` Rob Herring [this message]
2018-06-20 11:33       ` [PATCH v3 2/2] mmc: sdhci-of-arasan: Add quirk for unstable clocks Helmut Grohne
2018-07-02 13:17       ` [PATCH v3 0/2] mmc: sdhci-of-arasan: workaround for broken clocks Ulf Hansson

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