lkml.org 
[lkml]   [2019]   [Aug]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/2] mmc: sdhci-of-at91: add quirk for broken HS200
On Thu, Aug 08, 2019 at 05:23:00PM +0200, Ulf Hansson wrote:
> On Thu, 8 Aug 2019 at 10:35, <Eugen.Hristev@microchip.com> wrote:
> >
> > From: Eugen Hristev <eugen.hristev@microchip.com>
> >
> > HS200 is not implemented in the driver, but the controller claims it
> > through caps.
> > Remove it via quirk.
> > Without this quirk, the mmc core will try to enable hs200, which will fail,
> > and the eMMC initialization will fail.
> >
> > Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
>
> Should this be applied as a fix and possibly tagged for stable?
>
> In such case, do you have a specific commit that it fixes?

I think so, I would say:
Fixes: bb5f8ea4d514 ("mmc: sdhci-of-at91: introduce driver for the Atmel SDMMC")
Cc: stable@vger.kernel.org #v4.4 and later

It doesn't apply on 4.4 but resolution is trivial.

Regards

Ludovic

>
> Kind regards
> Uffe
>
> > ---
> > drivers/mmc/host/sdhci-of-at91.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
> > index 57fe3b2..3a8c6d8 100644
> > --- a/drivers/mmc/host/sdhci-of-at91.c
> > +++ b/drivers/mmc/host/sdhci-of-at91.c
> > @@ -370,6 +370,9 @@ static int sdhci_at91_probe(struct platform_device *pdev)
> > pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
> > pm_runtime_use_autosuspend(&pdev->dev);
> >
> > + /* HS200 is broken at this moment */
> > + host->quirks2 = SDHCI_QUIRK2_BROKEN_HS200;
> > +
> > ret = sdhci_add_host(host);
> > if (ret)
> > goto pm_runtime_disable;
> > --
> > 2.7.4
> >

\
 
 \ /
  Last update: 2019-08-09 10:10    [W:0.188 / U:0.328 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site