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| author | Christian Gromm | 2018-05-08 11:44:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2018-05-08 13:41:48 +0200 |
| commit | dbd36d5772f7e49e1e638391941de358d84ce379 (patch) | |
| tree | 37f3c1fa14d4889b6883ba135413396092d6989f /drivers/staging/most/core.c | |
| parent | staging: most: i2c: remove unnecessary poison_channel call (diff) | |
| download | kernel-qcow2-linux-dbd36d5772f7e49e1e638391941de358d84ce379.tar.gz kernel-qcow2-linux-dbd36d5772f7e49e1e638391941de358d84ce379.tar.xz kernel-qcow2-linux-dbd36d5772f7e49e1e638391941de358d84ce379.zip | |
staging: most: add channel property dbr_size
This patch adds the channel property dbr_size to control the corresponding
buffer size of the channels of the DIM2 interface.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/most/core.c')
| -rw-r--r-- | drivers/staging/most/core.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/staging/most/core.c b/drivers/staging/most/core.c index 965409efc8bf..db3c7e243deb 100644 --- a/drivers/staging/most/core.c +++ b/drivers/staging/most/core.c @@ -420,6 +420,26 @@ static ssize_t set_packets_per_xact_store(struct device *dev, return count; } +static ssize_t set_dbr_size_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct most_channel *c = to_channel(dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.dbr_size); +} + +static ssize_t set_dbr_size_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct most_channel *c = to_channel(dev); + int ret = kstrtou16(buf, 0, &c->cfg.dbr_size); + + if (ret) + return ret; + return count; +} + #define DEV_ATTR(_name) (&dev_attr_##_name.attr) static DEVICE_ATTR_RO(available_directions); @@ -435,6 +455,7 @@ static DEVICE_ATTR_RW(set_direction); static DEVICE_ATTR_RW(set_datatype); static DEVICE_ATTR_RW(set_subbuffer_size); static DEVICE_ATTR_RW(set_packets_per_xact); +static DEVICE_ATTR_RW(set_dbr_size); static struct attribute *channel_attrs[] = { DEV_ATTR(available_directions), @@ -450,6 +471,7 @@ static struct attribute *channel_attrs[] = { DEV_ATTR(set_datatype), DEV_ATTR(set_subbuffer_size), DEV_ATTR(set_packets_per_xact), + DEV_ATTR(set_dbr_size), NULL, }; |