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| author | Stefan Nilsson XK <stefan.xk.nilsson@stericsson.com> | 2011-05-11 17:48:05 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-05-24 23:53:50 -0400 |
| commit | 06e8935febe687e2a561707d4c7ca4245d261dbe (patch) | |
| tree | 0eef896f5b1614576fb0a1b744b4f87e8124f515 /include/linux/mmc | |
| parent | 253d6a280f77a9b61a76f9b1bfb83545fbd58726 (diff) | |
| download | kernel_samsung_smdk4412-06e8935febe687e2a561707d4c7ca4245d261dbe.zip kernel_samsung_smdk4412-06e8935febe687e2a561707d4c7ca4245d261dbe.tar.gz kernel_samsung_smdk4412-06e8935febe687e2a561707d4c7ca4245d261dbe.tar.bz2 | |
mmc: sdio: optimized SDIO IRQ handling for single irq
If there is only 1 function interrupt registered it is possible to
improve performance by directly calling the irq handler and avoiding
the overhead of reading the CCCR registers.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@stericsson.com>
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/card.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index d8dffc9..4910dec 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -191,6 +191,7 @@ struct mmc_card { struct sdio_cccr cccr; /* common card info */ struct sdio_cis cis; /* common tuple info */ struct sdio_func *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */ + struct sdio_func *sdio_single_irq; /* SDIO function when only one IRQ active */ unsigned num_info; /* number of info strings */ const char **info; /* info strings */ struct sdio_func_tuple *tuples; /* unknown common tuples */ |