The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
Thanks, Sasha
------------------ original commit in Linus's tree ------------------
From 419dd626e357e89fc9c4e3863592c8b38cfe1571 Mon Sep 17 00:00:00 2001
From: Nicolas Saenz Julienne nsaenz@kernel.org Date: Sat, 7 Aug 2021 13:06:36 +0200 Subject: [PATCH] mmc: sdhci-iproc: Set SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN on BCM2711
The controller doesn't seem to pick-up on clock changes, so set the SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN flag to query the clock frequency directly from the clock.
Fixes: f84e411c85be ("mmc: sdhci-iproc: Add support for emmc2 of the BCM2711") Signed-off-by: Nicolas Saenz Julienne nsaenz@kernel.org Signed-off-by: Stefan Wahren stefan.wahren@i2se.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1628334401-6577-6-git-send-email-stefan.wahren@i2s... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org --- drivers/mmc/host/sdhci-iproc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c index 032bf852397f..e7565c671998 100644 --- a/drivers/mmc/host/sdhci-iproc.c +++ b/drivers/mmc/host/sdhci-iproc.c @@ -295,7 +295,8 @@ static const struct sdhci_ops sdhci_iproc_bcm2711_ops = { };
static const struct sdhci_pltfm_data sdhci_bcm2711_pltfm_data = { - .quirks = SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12, + .quirks = SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 | + SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN, .ops = &sdhci_iproc_bcm2711_ops, };