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| author | Kamal Dasu <kamal.dasu@broadcom.com> | 2025-03-11 12:59:35 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-03-28 22:04:55 +0100 |
| commit | d92253be8f48f6a2e9cd8c7a46ea4ac76c733a7a (patch) | |
| tree | 4ba381adc56db78f6c61a4579d29f0b789c4b0eb | |
| parent | a3d5ef4a2517b95cfc9b6876c1dbb00e209673b4 (diff) | |
| download | linux-d92253be8f48f6a2e9cd8c7a46ea4ac76c733a7a.tar.gz linux-d92253be8f48f6a2e9cd8c7a46ea4ac76c733a7a.tar.bz2 linux-d92253be8f48f6a2e9cd8c7a46ea4ac76c733a7a.zip | |
mmc: sdhci-brcmstb: add cqhci suspend/resume to PM ops
commit 723ef0e20dbb2aa1b5406d2bb75374fc48187daa upstream.
cqhci timeouts observed on brcmstb platforms during suspend:
...
[ 164.832853] mmc0: cqhci: timeout for tag 18
...
Adding cqhci_suspend()/resume() calls to disable cqe
in sdhci_brcmstb_suspend()/resume() respectively to fix
CQE timeouts seen on PM suspend.
Fixes: d46ba2d17f90 ("mmc: sdhci-brcmstb: Add support for Command Queuing (CQE)")
Cc: stable@vger.kernel.org
Signed-off-by: Kamal Dasu <kamal.dasu@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20250311165946.28190-1-kamal.dasu@broadcom.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/mmc/host/sdhci-brcmstb.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c index 0ef4d578ade8..48cdcba0f39c 100644 --- a/drivers/mmc/host/sdhci-brcmstb.c +++ b/drivers/mmc/host/sdhci-brcmstb.c @@ -503,8 +503,15 @@ static int sdhci_brcmstb_suspend(struct device *dev) struct sdhci_host *host = dev_get_drvdata(dev); struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_brcmstb_priv *priv = sdhci_pltfm_priv(pltfm_host); + int ret; clk_disable_unprepare(priv->base_clk); + if (host->mmc->caps2 & MMC_CAP2_CQE) { + ret = cqhci_suspend(host->mmc); + if (ret) + return ret; + } + return sdhci_pltfm_suspend(dev); } @@ -529,6 +536,9 @@ static int sdhci_brcmstb_resume(struct device *dev) ret = clk_set_rate(priv->base_clk, priv->base_freq_hz); } + if (host->mmc->caps2 & MMC_CAP2_CQE) + ret = cqhci_resume(host->mmc); + return ret; } #endif |