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author | Ralf Baechle <ralf@linux-mips.org> | 2013-02-21 16:16:55 +0100 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2013-02-22 10:07:30 +0100 |
commit | edb15d83a875a1f4b1576188844db5c330c3267d (patch) | |
tree | 74d54eab401b6ccf2a6ad4821227108a8d160f03 /drivers/base/regmap/regmap-spi.c | |
parent | 8bfc245f9ad7bd4e461179e4e7852ef99b8b6144 (diff) | |
parent | a0b1c42951dd06ec83cc1bc2c9788131d9fefcd8 (diff) | |
download | op-kernel-dev-edb15d83a875a1f4b1576188844db5c330c3267d.zip op-kernel-dev-edb15d83a875a1f4b1576188844db5c330c3267d.tar.gz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mips-for-linux-next
Conflicts:
include/linux/ssb/ssb_driver_gige.h
Also resolves a logical merge conflict in drivers/net/ethernet/broadcom/-
bgmac.c due to change of an API.
Diffstat (limited to 'drivers/base/regmap/regmap-spi.c')
-rw-r--r-- | drivers/base/regmap/regmap-spi.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap-spi.c b/drivers/base/regmap/regmap-spi.c index ffa46a9..4c506bd 100644 --- a/drivers/base/regmap/regmap-spi.c +++ b/drivers/base/regmap/regmap-spi.c @@ -15,6 +15,21 @@ #include <linux/init.h> #include <linux/module.h> +#include "internal.h" + +struct regmap_async_spi { + struct regmap_async core; + struct spi_message m; + struct spi_transfer t[2]; +}; + +static void regmap_spi_complete(void *data) +{ + struct regmap_async_spi *async = data; + + regmap_async_complete_cb(&async->core, async->m.status); +} + static int regmap_spi_write(void *context, const void *data, size_t count) { struct device *dev = context; @@ -40,6 +55,43 @@ static int regmap_spi_gather_write(void *context, return spi_sync(spi, &m); } +static int regmap_spi_async_write(void *context, + const void *reg, size_t reg_len, + const void *val, size_t val_len, + struct regmap_async *a) +{ + struct regmap_async_spi *async = container_of(a, + struct regmap_async_spi, + core); + struct device *dev = context; + struct spi_device *spi = to_spi_device(dev); + + async->t[0].tx_buf = reg; + async->t[0].len = reg_len; + async->t[1].tx_buf = val; + async->t[1].len = val_len; + + spi_message_init(&async->m); + spi_message_add_tail(&async->t[0], &async->m); + spi_message_add_tail(&async->t[1], &async->m); + + async->m.complete = regmap_spi_complete; + async->m.context = async; + + return spi_async(spi, &async->m); +} + +static struct regmap_async *regmap_spi_async_alloc(void) +{ + struct regmap_async_spi *async_spi; + + async_spi = kzalloc(sizeof(*async_spi), GFP_KERNEL); + if (!async_spi) + return NULL; + + return &async_spi->core; +} + static int regmap_spi_read(void *context, const void *reg, size_t reg_size, void *val, size_t val_size) @@ -53,6 +105,8 @@ static int regmap_spi_read(void *context, static struct regmap_bus regmap_spi = { .write = regmap_spi_write, .gather_write = regmap_spi_gather_write, + .async_write = regmap_spi_async_write, + .async_alloc = regmap_spi_async_alloc, .read = regmap_spi_read, .read_flag_mask = 0x80, }; |