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MMC host:

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- moxart: Fix regression for sg_miter for PIO mode
  - sdhci-msm: Avoid hang by preventing access to suspended controller
  - sdhci-of-dwcmshc: Fix SD card tuning error for th1520
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Merge tag 'mmc-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC host fixes from Ulf Hansson:

 - moxart: Fix regression for sg_miter for PIO mode

 - sdhci-msm: Avoid hang by preventing access to suspended controller

 - sdhci-of-dwcmshc: Fix SD card tuning error for th1520

* tag 'mmc-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: moxart: fix handling of sgm->consumed, otherwise WARN_ON triggers
  mmc: sdhci-of-dwcmshc: th1520: Increase tuning loop count to 128
  mmc: sdhci-msm: pervent access to suspended controller
This commit is contained in:
Linus Torvalds 2024-04-26 13:17:33 -07:00
commit 4630932a55
3 changed files with 17 additions and 1 deletions
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1
drivers/mmc/host/moxart-mmc.c
View file

@ -300,6 +300,7 @@ static void moxart_transfer_pio(struct moxart_host *host)
remain = sgm->length;
if (remain > host->data_len)
remain = host->data_len;
sgm->consumed = 0;
if (data->flags & MMC_DATA_WRITE) {
while (remain > 0) {

16
drivers/mmc/host/sdhci-msm.c
View file

@ -2694,6 +2694,11 @@ static __maybe_unused int sdhci_msm_runtime_suspend(struct device *dev)
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
unsigned long flags;
spin_lock_irqsave(&host->lock, flags);
host->runtime_suspended = true;
spin_unlock_irqrestore(&host->lock, flags);
/* Drop the performance vote */
dev_pm_opp_set_rate(dev, 0);
@ -2708,6 +2713,7 @@ static __maybe_unused int sdhci_msm_runtime_resume(struct device *dev)
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
unsigned long flags;
int ret;
ret = clk_bulk_prepare_enable(ARRAY_SIZE(msm_host->bulk_clks),
@ -2726,7 +2732,15 @@ static __maybe_unused int sdhci_msm_runtime_resume(struct device *dev)
dev_pm_opp_set_rate(dev, msm_host->clk_rate);
return sdhci_msm_ice_resume(msm_host);
ret = sdhci_msm_ice_resume(msm_host);
if (ret)
return ret;
spin_lock_irqsave(&host->lock, flags);
host->runtime_suspended = false;
spin_unlock_irqrestore(&host->lock, flags);
return ret;
}
static const struct dev_pm_ops sdhci_msm_pm_ops = {

1
drivers/mmc/host/sdhci-of-dwcmshc.c
View file

@ -626,6 +626,7 @@ static int th1520_execute_tuning(struct sdhci_host *host, u32 opcode)
/* perform tuning */
sdhci_start_tuning(host);
host->tuning_loop_count = 128;
host->tuning_err = __sdhci_execute_tuning(host, opcode);
if (host->tuning_err) {
/* disable auto-tuning upon tuning error */