linux-kernel - [PATCH 0/2] mmc: cqhci: Spurious TCN fix

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Message-ID: <20231027145623.2258723-1-korneld@chromium.org>
Date:   Fri, 27 Oct 2023 14:56:08 +0000
From:   Kornel Dulęba <korneld@...omium.org>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Radoslaw Biernacki <biernacki@...gle.com>,
        Gwendal Grignou <gwendal@...omium.org>,
        Kornel Dulęba <korneld@...omium.org>
Subject: [PATCH 0/2] mmc: cqhci: Spurious TCN fix

Hi Adrian,

This series contains a fix for the "spurious TCN" issue that happens
during CQE recovery. We discussed this problem in the:
"[PATCH] mmc: cqhci: Be more verbose in error irq handler" thread.
The fix implemented in the form of a quirk, that is applied to the JSL
controller only. This was done this way, since I believe that this is a
hardware issue. Note that this quirk might be applicable to controllers
on other Intel SoCs too.
Please let me know what do you think.

Regards,
Kornel

Kornel Dulęba (2):
  mmc: cqhci: Add a quirk to clear stale TC
  mmc: sdhci-pci: Enable the clear stale TC quirk on JSL

 drivers/mmc/host/cqhci-core.c     | 42 +++++++++++++++++++++++++++++++
 drivers/mmc/host/cqhci.h          |  1 +
 drivers/mmc/host/sdhci-pci-core.c |  6 +++++
 3 files changed, 49 insertions(+)

-- 
2.42.0.820.g83a721a137-goog