diff options
| author | Nuno Sa <nuno.sa@analog.com> | 2024-08-06 16:35:06 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-08-10 13:17:33 +0300 |
| commit | 24a9453c03686110f641697a09e07cefc57a0b87 (patch) | |
| tree | d9c4351b065fc19567d1cad81795bbb4a001a944 /drivers/iio/dac | |
| parent | 1e2ae3ce23b35bb8fa81624501b2f697b73afef3 (diff) | |
| download | linux-24a9453c03686110f641697a09e07cefc57a0b87.tar.xz | |
iio: dac: adi-axi-dac: support debugfs direct_reg_access
Make it possible to read/write registers on the backend using the
debugfs interface for it.
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240806-dev-backend-dac-direct-reg-access-v1-1-b84a6e8ee8a0@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/dac')
| -rw-r--r-- | drivers/iio/dac/adi-axi-dac.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/iio/dac/adi-axi-dac.c b/drivers/iio/dac/adi-axi-dac.c index 9655705b158b..0cb00f3bec04 100644 --- a/drivers/iio/dac/adi-axi-dac.c +++ b/drivers/iio/dac/adi-axi-dac.c @@ -507,6 +507,17 @@ static int axi_dac_set_sample_rate(struct iio_backend *back, unsigned int chan, return 0; } +static int axi_dac_reg_access(struct iio_backend *back, unsigned int reg, + unsigned int writeval, unsigned int *readval) +{ + struct axi_dac_state *st = iio_backend_get_priv(back); + + if (readval) + return regmap_read(st->regmap, reg, readval); + + return regmap_write(st->regmap, reg, writeval); +} + static const struct iio_backend_ops axi_dac_generic_ops = { .enable = axi_dac_enable, .disable = axi_dac_disable, @@ -517,6 +528,7 @@ static const struct iio_backend_ops axi_dac_generic_ops = { .ext_info_get = axi_dac_ext_info_get, .data_source_set = axi_dac_data_source_set, .set_sample_rate = axi_dac_set_sample_rate, + .debugfs_reg_access = iio_backend_debugfs_ptr(axi_dac_reg_access), }; static const struct iio_backend_info axi_dac_generic = { |