linux-kernel - [PATCH 4.19 01/38] mmc: sdhci: Workaround broken command queuing on Intel GLK based IRBIS models

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Message-Id: <20201005142108.718412325@linuxfoundation.org>
Date:   Mon,  5 Oct 2020 17:26:18 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        RussianNeuroMancer <russianneuromancer@...ru>
Subject: [PATCH 4.19 01/38] mmc: sdhci: Workaround broken command queuing on Intel GLK based IRBIS models

From: Hans de Goede <hdegoede@...hat.com>

commit afd7f30886b0b445a4240a99020458a9772f2b89 upstream.

Commit bedf9fc01ff1 ("mmc: sdhci: Workaround broken command queuing on
Intel GLK"), disabled command-queuing on Intel GLK based LENOVO models
because of it being broken due to what is believed to be a bug in
the BIOS.

It seems that the BIOS of some IRBIS models, including the IRBIS NB111
model has the same issue, so disable command queuing there too.

Fixes: bedf9fc01ff1 ("mmc: sdhci: Workaround broken command queuing on Intel GLK")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209397
Reported-and-tested-by: RussianNeuroMancer <russianneuromancer@...ru>
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Acked-by: Adrian Hunter <adrian.hunter@...el.com>
Link: https://lore.kernel.org/r/20200927104821.5676-1-hdegoede@redhat.com
Cc: stable@...r.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mmc/host/sdhci-pci-core.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -739,7 +739,8 @@ static int byt_emmc_probe_slot(struct sd
 static bool glk_broken_cqhci(struct sdhci_pci_slot *slot)
 {
 	return slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_GLK_EMMC &&
-	       dmi_match(DMI_BIOS_VENDOR, "LENOVO");
+	       (dmi_match(DMI_BIOS_VENDOR, "LENOVO") ||
+		dmi_match(DMI_SYS_VENDOR, "IRBIS"));
 }
 
 static int glk_emmc_probe_slot(struct sdhci_pci_slot *slot)