diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2020-12-23 10:30:22 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-02-01 13:54:43 +0300 |
| commit | ed2fab9a8229cc70fe03032e48d0ec375df6013e (patch) | |
| tree | 4bfe4468faa63a3b737f016233d75ad7bbe849b8 /drivers/mmc/host/renesas_sdhi_core.c | |
| parent | 35cdcd1268f654f55e2308767349c44bd25d8009 (diff) | |
| download | linux-ed2fab9a8229cc70fe03032e48d0ec375df6013e.tar.xz | |
mmc: renesas_sdhi: Add a condition of cmd/data timeout for retune
According to the datasheet, this controller needs retune when
cmd or data timeout happens. So, add a condition into .check_retune().
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/1608708622-29668-3-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/renesas_sdhi_core.c')
| -rw-r--r-- | drivers/mmc/host/renesas_sdhi_core.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index 38f028e70633..158c21e5a942 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -768,10 +768,12 @@ static bool renesas_sdhi_auto_correction(struct tmio_mmc_host *host) return false; } -static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host) +static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host, + struct mmc_request *mrq) { struct renesas_sdhi *priv = host_to_priv(host); bool use_4tap = priv->quirks && priv->quirks->hs400_4taps; + bool ret = false; /* * Skip checking SCC errors when running on 4 taps in HS400 mode as @@ -785,11 +787,19 @@ static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host) if (mmc_doing_tune(host->mmc)) return false; + if (((mrq->cmd->error == -ETIMEDOUT) || + (mrq->data && mrq->data->error == -ETIMEDOUT)) && + ((host->mmc->caps & MMC_CAP_NONREMOVABLE) || + (host->ops.get_cd && host->ops.get_cd(host->mmc)))) + ret |= true; + if (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL) & SH_MOBILE_SDHI_SCC_RVSCNTL_RVSEN) - return renesas_sdhi_auto_correction(host); + ret |= renesas_sdhi_auto_correction(host); + else + ret |= renesas_sdhi_manual_correction(host, use_4tap); - return renesas_sdhi_manual_correction(host, use_4tap); + return ret; } static int renesas_sdhi_wait_idle(struct tmio_mmc_host *host, u32 bit) |