diff options
| author |   Adrian Hunter <adrian.hunter@intel.com> | 2015-05-07 13:10:19 +0300 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2015-06-01 09:06:56 +0200 |
| commit | ed16f58dc00d47439c201ab18ca4d981210bcafd (patch) | |
| tree | 469b5c2f61723e8bd9894234778b3a5b48daef24 /drivers/mmc | |
| parent | mmc: mmc: Hold re-tuning in mmc_sleep() (diff) | |
| download | linux-dev-ed16f58dc00d47439c201ab18ca4d981210bcafd.tar.xz linux-dev-ed16f58dc00d47439c201ab18ca4d981210bcafd.zip | |
mmc: core: Separate out the mmc_switch status check so it can be re-used
Make a separate function to do the mmc_switch status check
so it can be re-used. This is preparation for adding support
for HS400 re-tuning.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 30 | ||||
| -rw-r--r-- | drivers/mmc/core/mmc_ops.h | 1 |
2 files changed, 17 insertions, 14 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 4cad5f02837c..0e9ae1c276c8 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -450,6 +450,21 @@ int mmc_spi_set_crc(struct mmc_host *host, int use_crc) return err; } +int mmc_switch_status_error(struct mmc_host *host, u32 status) +{ + if (mmc_host_is_spi(host)) { + if (status & R1_SPI_ILLEGAL_COMMAND) + return -EBADMSG; + } else { + if (status & 0xFDFFA000) + pr_warn("%s: unexpected status %#x after switch\n", + mmc_hostname(host), status); + if (status & R1_SWITCH_ERROR) + return -EBADMSG; + } + return 0; +} + /** * __mmc_switch - modify EXT_CSD register * @card: the MMC card associated with the data transfer @@ -558,20 +573,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, } } while (R1_CURRENT_STATE(status) == R1_STATE_PRG); - if (mmc_host_is_spi(host)) { - if (status & R1_SPI_ILLEGAL_COMMAND) { - err = -EBADMSG; - goto out; - } - } else { - if (status & 0xFDFFA000) - pr_warn("%s: unexpected status %#x after switch\n", - mmc_hostname(host), status); - if (status & R1_SWITCH_ERROR) { - err = -EBADMSG; - goto out; - } - } + err = mmc_switch_status_error(host, status); out: mmc_retune_release(host); diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h index 6f4b00ed93de..f498f9ae21f0 100644 --- a/drivers/mmc/core/mmc_ops.h +++ b/drivers/mmc/core/mmc_ops.h @@ -27,6 +27,7 @@ int mmc_spi_set_crc(struct mmc_host *host, int use_crc); int mmc_bus_test(struct mmc_card *card, u8 bus_width); int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status); int mmc_can_ext_csd(struct mmc_card *card); +int mmc_switch_status_error(struct mmc_host *host, u32 status); #endif |