diff options
| author |   Ulf Hansson <ulf.hansson@linaro.org> | 2020-02-04 09:54:43 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-03-24 14:35:39 +0100 |
| commit | 40c96853fef1bdef13d2cd05b21d4f06b2de6321 (patch) | |
| tree | 038cc329023db57c89bbaa1fdad36a63e0072582 /include/linux/mmc | |
| parent | mmc: core: Split up mmc_poll_for_busy() (diff) | |
| download | linux-dev-40c96853fef1bdef13d2cd05b21d4f06b2de6321.tar.xz linux-dev-40c96853fef1bdef13d2cd05b21d4f06b2de6321.zip | |
mmc: core: Enable re-use of mmc_blk_in_tran_state()
To allow subsequent changes to re-use the code from the static function
mmc_blk_in_tran_state(), let's move it to a public header. While at it,
let's also rename it to mmc_ready_for_data(), as to try to better describe
its purpose.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Baolin Wang <baolin.wang7@gmail.com>
Tested-by: Ludovic Barre <ludovic.barre@st.com>
Reviewed-by: Ludovic Barre <ludovic.barre@st.com>
Link: https://lore.kernel.org/r/20200204085449.32585-7-ulf.hansson@linaro.org
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/mmc.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 897a87c4c827..4b85ef05a906 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -161,6 +161,16 @@ static inline bool mmc_op_multi(u32 opcode) #define R1_STATE_PRG 7 #define R1_STATE_DIS 8 +static inline bool mmc_ready_for_data(u32 status) +{ + /* + * Some cards mishandle the status bits, so make sure to check both the + * busy indication and the card state. + */ + return status & R1_READY_FOR_DATA && + R1_CURRENT_STATE(status) == R1_STATE_TRAN; +} + /* * MMC/SD in SPI mode reports R1 status always, and R2 for SEND_STATUS * R1 is the low order byte; R2 is the next highest byte, when present. |