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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2020-11-25 22:29:59 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-12-04 13:28:25 +0100 |
| commit | 30ae3e13caeaa47884c222ebf5711ce27ed25f19 (patch) | |
| tree | 75a1b3f13c4bd670edc5dea994e1471dec90c606 /drivers/mmc/host/renesas_sdhi_core.c | |
| parent | 9d348477ddbbc7e2d16032a945a841a7624fef25 (diff) | |
| download | linux-30ae3e13caeaa47884c222ebf5711ce27ed25f19.tar.bz2 | |
mmc: tmio: set max_busy_timeout
Set max_busy_timeouts for variants known to support the TOPxx bits in
the SD_OPTION register. The timeout mechanism was running in the
background but not yet properly handled in the driver. So, let the MMC
core know when to not use R1B to avoid unhandled timeouts.
My datasheets for older variants (tmio_mmc.c) suggest that they support
it, too. However, actual bit descriptions are lacking, so I chose an
opt-in approach.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20201125213001.15003-2-wsa+renesas@sang-engineering.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 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index bb937411c2ec..153767054c05 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -1041,6 +1041,9 @@ int renesas_sdhi_probe(struct platform_device *pdev, /* All SDHI have SDIO status bits which must be 1 */ mmc_data->flags |= TMIO_MMC_SDIO_STATUS_SETBITS; + /* All SDHI support HW busy detection */ + mmc_data->flags |= TMIO_MMC_USE_BUSY_TIMEOUT; + dev_pm_domain_start(&pdev->dev); ret = renesas_sdhi_clk_enable(host); |