diff options
| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2020-11-26 00:30:00 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-12-04 15:30:04 +0300 |
| commit | 58959f89dd3d8cc8bedcd2d665496603098b29a2 (patch) | |
| tree | 3843a3c0575b4f51f0edfee06d81362fbb2fbef0 /drivers/mmc/host/tmio_mmc.h | |
| parent | 30ae3e13caeaa47884c222ebf5711ce27ed25f19 (diff) | |
| download | linux-58959f89dd3d8cc8bedcd2d665496603098b29a2.tar.xz | |
mmc: tmio: add hook for custom busy_wait calculation
Newer SDHI variants can 'wait while busy' longer than the generic TMIO.
Provide a hook to get the maximum cycle count to wait for. If the hook
is not populated, fall back to a generic version which works well with
all older TMIO/SDHI variants.
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/20201125213001.15003-3-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc.h')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h index 819198af17f4..f60559bc413a 100644 --- a/drivers/mmc/host/tmio_mmc.h +++ b/drivers/mmc/host/tmio_mmc.h @@ -181,6 +181,7 @@ struct tmio_mmc_host { void (*reset)(struct tmio_mmc_host *host); bool (*check_retune)(struct tmio_mmc_host *host); void (*fixup_request)(struct tmio_mmc_host *host, struct mmc_request *mrq); + unsigned int (*get_timeout_cycles)(struct tmio_mmc_host *host); void (*prepare_hs400_tuning)(struct tmio_mmc_host *host); void (*hs400_downgrade)(struct tmio_mmc_host *host); |