Add timestamp channel in list of channel, to allow retrieving timestamps
when events are produced.
Signed-off-by: Gwendal Grignou <gwendal@xxxxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
---
No changes in v6
Changes in v5:
Fill comment line.
Changes in v4:
Fix spelling.
drivers/iio/light/acpi-als.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c
index 2be7180e2cbfa..6dbaeeebe2041 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);
};
/*
--
2.29.2.729.g45daf8777d-goog
