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| author | Gwendal Grignou <gwendal@chromium.org> | 2021-03-17 00:40:10 -0700 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-03-25 19:13:52 +0000 |
| commit | dbd7e992a55dd5c9b3e0771b2c417187c5de059e (patch) | |
| tree | 053a858abaac72e45220371073acc06351006923 /drivers/iio/light/acpi-als.c | |
| parent | 707182b4ff3e644393f785aba36b6edfcc316b16 (diff) | |
| download | linux-dbd7e992a55dd5c9b3e0771b2c417187c5de059e.tar.gz linux-dbd7e992a55dd5c9b3e0771b2c417187c5de059e.tar.bz2 linux-dbd7e992a55dd5c9b3e0771b2c417187c5de059e.zip | |
iio: acpi_als: Add timestamp channel
Add timestamp channel in list of channel, to allow retrieving timestamps
when events are produced.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210317074012.2336454-2-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/light/acpi-als.c')
| -rw-r--r-- | drivers/iio/light/acpi-als.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c index f8e547fd35e7..784868aa8fbf 100644 --- a/drivers/iio/light/acpi-als.c +++ b/drivers/iio/light/acpi-als.c @@ -45,24 +45,22 @@ static const struct iio_chan_spec acpi_als_channels[] = { .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_PROCESSED), }, + IIO_CHAN_SOFT_TIMESTAMP(1), }; /* * The event buffer contains timestamp and all the data from * the ACPI0008 block. There are multiple, but so far we only - * support _ALI (illuminance). Once someone adds new channels - * to acpi_als_channels[], the evt_buffer below will grow - * automatically. + * support _ALI (illuminance): One channel, padding and timestamp. */ -#define ACPI_ALS_EVT_NR_SOURCES ARRAY_SIZE(acpi_als_channels) #define ACPI_ALS_EVT_BUFFER_SIZE \ - (sizeof(s64) + (ACPI_ALS_EVT_NR_SOURCES * sizeof(s32))) + (sizeof(s32) + sizeof(s32) + sizeof(s64)) struct acpi_als { struct acpi_device *device; struct mutex lock; - s32 evt_buffer[ACPI_ALS_EVT_BUFFER_SIZE]; + s32 evt_buffer[ACPI_ALS_EVT_BUFFER_SIZE / sizeof(s32)] __aligned(8); }; /* |