* [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute
@ 2022-04-27 19:08 Gwendal Grignou
2022-04-27 19:08 ` [PATCH v2 1/2] iio: ABI: Add a new location label Gwendal Grignou
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Gwendal Grignou @ 2022-04-27 19:08 UTC (permalink / raw)
To: jic23; +Cc: bleung, linux-iio, Gwendal Grignou
Instead of using the custom |location| attribute, use the |label| attribute
introduced in kernel 5.8.
A new location is required for sensors located in a camera subassembly that
swivels.
---
changes in v2:
* Add "accel-camera" define.
* remove |location| attribute completely.
Gwendal Grignou (2):
iio: ABI: Add a new location label
iio: common: cros_ec_sensors: Add label attribute
Documentation/ABI/testing/sysfs-bus-iio | 5 ++++
drivers/iio/accel/cros_ec_accel_legacy.c | 2 +-
.../cros_ec_sensors/cros_ec_sensors_core.c | 30 ++++++-------------
drivers/iio/light/cros_ec_light_prox.c | 2 --
drivers/iio/pressure/cros_ec_baro.c | 2 --
.../linux/iio/common/cros_ec_sensors_core.h | 2 --
6 files changed, 15 insertions(+), 28 deletions(-)
--
2.36.0.464.gb9c8b46e94-goog
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH v2 1/2] iio: ABI: Add a new location label
2022-04-27 19:08 [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute Gwendal Grignou
@ 2022-04-27 19:08 ` Gwendal Grignou
2022-04-27 19:08 ` [PATCH v2 2/2] iio: common: cros_ec_sensors: Add label attribute Gwendal Grignou
2022-04-28 8:31 ` [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute Jonathan Cameron
2 siblings, 0 replies; 5+ messages in thread
From: Gwendal Grignou @ 2022-04-27 19:08 UTC (permalink / raw)
To: jic23; +Cc: bleung, linux-iio, Gwendal Grignou
Add "accel-camera" when an IMU is location near the camera in a swivel
sub-assembly. These IMU are used for AR applications.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
---
changes in v2:
* New, add "accel-camera" define.
Documentation/ABI/testing/sysfs-bus-iio | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index d4ccc68fdcf05..3e00d7f7ee22b 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -79,6 +79,11 @@ Description:
* "accel-base"
* "accel-display"
+ For devices where an accelerometer is housed in the swivel camera subassembly
+ (for AR application), the following standardized label is used:
+
+ * "accel-camera"
+
What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
KernelVersion: 4.5
Contact: linux-iio@vger.kernel.org
--
2.36.0.464.gb9c8b46e94-goog
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v2 2/2] iio: common: cros_ec_sensors: Add label attribute
2022-04-27 19:08 [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute Gwendal Grignou
2022-04-27 19:08 ` [PATCH v2 1/2] iio: ABI: Add a new location label Gwendal Grignou
@ 2022-04-27 19:08 ` Gwendal Grignou
2022-04-28 8:31 ` [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute Jonathan Cameron
2 siblings, 0 replies; 5+ messages in thread
From: Gwendal Grignou @ 2022-04-27 19:08 UTC (permalink / raw)
To: jic23; +Cc: bleung, linux-iio, Gwendal Grignou
When sensor location is known, populate iio sysfs "label" attribute:
* "accel-base" : the sensor is in the base of the convertible (2-1)
device.
* "accel-display" : the sensor is in the lid/display plane of the
device.
* "accel-camera" : the sensor is in the swivel camera subassembly.
The non-standard |location| attribute is removed, the field |loc| in
cros_ec_sensors_core_state is removed.
It apply to standalone accelerometer as well as IMU (accelerometer +
gyroscope) and sensors where the location is known (light).
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
---
changes in v2:
* Use "accel-camera" define.
* remove |location| attribute completely.
* remove ->loc field, and duplication of setting ->type field.
drivers/iio/accel/cros_ec_accel_legacy.c | 2 +-
.../cros_ec_sensors/cros_ec_sensors_core.c | 30 ++++++-------------
drivers/iio/light/cros_ec_light_prox.c | 2 --
drivers/iio/pressure/cros_ec_baro.c | 2 --
.../linux/iio/common/cros_ec_sensors_core.h | 2 --
5 files changed, 10 insertions(+), 28 deletions(-)
diff --git a/drivers/iio/accel/cros_ec_accel_legacy.c b/drivers/iio/accel/cros_ec_accel_legacy.c
index b6f3471b62dcf..1c0171f26e99e 100644
--- a/drivers/iio/accel/cros_ec_accel_legacy.c
+++ b/drivers/iio/accel/cros_ec_accel_legacy.c
@@ -230,7 +230,7 @@ static int cros_ec_accel_legacy_probe(struct platform_device *pdev)
indio_dev->channels = cros_ec_accel_legacy_channels;
indio_dev->num_channels = ARRAY_SIZE(cros_ec_accel_legacy_channels);
/* The lid sensor needs to be presented inverted. */
- if (state->loc == MOTIONSENSE_LOC_LID) {
+ if (!strcmp(indio_dev->label, "accel-display")) {
state->sign[CROS_EC_SENSOR_X] = -1;
state->sign[CROS_EC_SENSOR_Z] = -1;
}
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
index 5976aca48e3bd..e5ccedef13a80 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
@@ -29,12 +29,6 @@
*/
#define CROS_EC_FIFO_SIZE (2048 * 2 / 3)
-static char *cros_ec_loc[] = {
- [MOTIONSENSE_LOC_BASE] = "base",
- [MOTIONSENSE_LOC_LID] = "lid",
- [MOTIONSENSE_LOC_MAX] = "unknown",
-};
-
static int cros_ec_get_host_cmd_version_mask(struct cros_ec_device *ec_dev,
u16 cmd_offset, u16 cmd, u32 *mask)
{
@@ -287,6 +281,8 @@ int cros_ec_sensors_core_init(struct platform_device *pdev,
indio_dev->name = pdev->name;
if (physical_device) {
+ enum motionsensor_location loc;
+
state->param.cmd = MOTIONSENSE_CMD_INFO;
state->param.info.sensor_num = sensor_platform->sensor_num;
ret = cros_ec_motion_send_host_cmd(state, 0);
@@ -295,7 +291,13 @@ int cros_ec_sensors_core_init(struct platform_device *pdev,
return ret;
}
state->type = state->resp->info.type;
- state->loc = state->resp->info.location;
+ loc = state->resp->info.location;
+ if (loc == MOTIONSENSE_LOC_BASE)
+ indio_dev->label = "accel-base";
+ else if (loc == MOTIONSENSE_LOC_LID)
+ indio_dev->label = "accel-display";
+ else if (loc == MOTIONSENSE_LOC_CAMERA)
+ indio_dev->label = "accel-camera";
/* Set sign vector, only used for backward compatibility. */
memset(state->sign, 1, CROS_EC_SENSOR_MAX_AXIS);
@@ -442,15 +444,6 @@ static ssize_t cros_ec_sensors_id(struct iio_dev *indio_dev,
return snprintf(buf, PAGE_SIZE, "%d\n", st->param.info.sensor_num);
}
-static ssize_t cros_ec_sensors_loc(struct iio_dev *indio_dev,
- uintptr_t private, const struct iio_chan_spec *chan,
- char *buf)
-{
- struct cros_ec_sensors_core_state *st = iio_priv(indio_dev);
-
- return snprintf(buf, PAGE_SIZE, "%s\n", cros_ec_loc[st->loc]);
-}
-
const struct iio_chan_spec_ext_info cros_ec_sensors_ext_info[] = {
{
.name = "calibrate",
@@ -462,11 +455,6 @@ const struct iio_chan_spec_ext_info cros_ec_sensors_ext_info[] = {
.shared = IIO_SHARED_BY_ALL,
.read = cros_ec_sensors_id
},
- {
- .name = "location",
- .shared = IIO_SHARED_BY_ALL,
- .read = cros_ec_sensors_loc
- },
{ },
};
EXPORT_SYMBOL_GPL(cros_ec_sensors_ext_info);
diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c
index de472f23d1cba..a00a8b3b86cfa 100644
--- a/drivers/iio/light/cros_ec_light_prox.c
+++ b/drivers/iio/light/cros_ec_light_prox.c
@@ -188,8 +188,6 @@ static int cros_ec_light_prox_probe(struct platform_device *pdev)
indio_dev->info = &cros_ec_light_prox_info;
state = iio_priv(indio_dev);
- state->core.type = state->core.resp->info.type;
- state->core.loc = state->core.resp->info.location;
channel = state->channels;
/* Common part */
diff --git a/drivers/iio/pressure/cros_ec_baro.c b/drivers/iio/pressure/cros_ec_baro.c
index 2f882e1094232..1d9d34ae3c0a8 100644
--- a/drivers/iio/pressure/cros_ec_baro.c
+++ b/drivers/iio/pressure/cros_ec_baro.c
@@ -145,8 +145,6 @@ static int cros_ec_baro_probe(struct platform_device *pdev)
indio_dev->info = &cros_ec_baro_info;
state = iio_priv(indio_dev);
- state->core.type = state->core.resp->info.type;
- state->core.loc = state->core.resp->info.location;
channel = state->channels;
/* Common part */
channel->info_mask_separate = BIT(IIO_CHAN_INFO_RAW);
diff --git a/include/linux/iio/common/cros_ec_sensors_core.h b/include/linux/iio/common/cros_ec_sensors_core.h
index c582e1a142320..a8259c8822f56 100644
--- a/include/linux/iio/common/cros_ec_sensors_core.h
+++ b/include/linux/iio/common/cros_ec_sensors_core.h
@@ -41,7 +41,6 @@ typedef irqreturn_t (*cros_ec_sensors_capture_t)(int irq, void *p);
* @param: motion sensor parameters structure
* @resp: motion sensor response structure
* @type: type of motion sensor
- * @loc: location where the motion sensor is placed
* @range_updated: True if the range of the sensor has been
* updated.
* @curr_range: If updated, the current range value.
@@ -67,7 +66,6 @@ struct cros_ec_sensors_core_state {
struct ec_response_motion_sense *resp;
enum motionsensor_type type;
- enum motionsensor_location loc;
bool range_updated;
int curr_range;
--
2.36.0.464.gb9c8b46e94-goog
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute
2022-04-27 19:08 [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute Gwendal Grignou
2022-04-27 19:08 ` [PATCH v2 1/2] iio: ABI: Add a new location label Gwendal Grignou
2022-04-27 19:08 ` [PATCH v2 2/2] iio: common: cros_ec_sensors: Add label attribute Gwendal Grignou
@ 2022-04-28 8:31 ` Jonathan Cameron
2022-05-08 18:05 ` Jonathan Cameron
2 siblings, 1 reply; 5+ messages in thread
From: Jonathan Cameron @ 2022-04-28 8:31 UTC (permalink / raw)
To: Gwendal Grignou; +Cc: jic23, bleung, linux-iio
On Wed, 27 Apr 2022 12:08:02 -0700
Gwendal Grignou <gwendal@chromium.org> wrote:
> Instead of using the custom |location| attribute, use the |label| attribute
> introduced in kernel 5.8.
> A new location is required for sensors located in a camera subassembly that
> swivels.
>
I'm assuming this ABI change is fine because you can change the software stack
as well?
Is this likely to break anyone relying on the old location attribute?
Jonathan
> ---
> changes in v2:
> * Add "accel-camera" define.
> * remove |location| attribute completely.
>
> Gwendal Grignou (2):
> iio: ABI: Add a new location label
> iio: common: cros_ec_sensors: Add label attribute
>
> Documentation/ABI/testing/sysfs-bus-iio | 5 ++++
> drivers/iio/accel/cros_ec_accel_legacy.c | 2 +-
> .../cros_ec_sensors/cros_ec_sensors_core.c | 30 ++++++-------------
> drivers/iio/light/cros_ec_light_prox.c | 2 --
> drivers/iio/pressure/cros_ec_baro.c | 2 --
> .../linux/iio/common/cros_ec_sensors_core.h | 2 --
> 6 files changed, 15 insertions(+), 28 deletions(-)
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute
2022-04-28 8:31 ` [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute Jonathan Cameron
@ 2022-05-08 18:05 ` Jonathan Cameron
0 siblings, 0 replies; 5+ messages in thread
From: Jonathan Cameron @ 2022-05-08 18:05 UTC (permalink / raw)
To: Jonathan Cameron; +Cc: Gwendal Grignou, bleung, linux-iio
On Thu, 28 Apr 2022 09:31:30 +0100
Jonathan Cameron <Jonathan.Cameron@Huawei.com> wrote:
> On Wed, 27 Apr 2022 12:08:02 -0700
> Gwendal Grignou <gwendal@chromium.org> wrote:
>
> > Instead of using the custom |location| attribute, use the |label| attribute
> > introduced in kernel 5.8.
> > A new location is required for sensors located in a camera subassembly that
> > swivels.
> >
>
> I'm assuming this ABI change is fine because you can change the software stack
> as well?
>
> Is this likely to break anyone relying on the old location attribute?
>
> Jonathan
>
Reply was off list for some reason. Anyhow, upshot is that this is fine
so applied to the togreg branch of iio.git and pushed out as testing
for 0-day to poke at it.
Thanks,
Jonathan
> > ---
> > changes in v2:
> > * Add "accel-camera" define.
> > * remove |location| attribute completely.
> >
> > Gwendal Grignou (2):
> > iio: ABI: Add a new location label
> > iio: common: cros_ec_sensors: Add label attribute
> >
> > Documentation/ABI/testing/sysfs-bus-iio | 5 ++++
> > drivers/iio/accel/cros_ec_accel_legacy.c | 2 +-
> > .../cros_ec_sensors/cros_ec_sensors_core.c | 30 ++++++-------------
> > drivers/iio/light/cros_ec_light_prox.c | 2 --
> > drivers/iio/pressure/cros_ec_baro.c | 2 --
> > .../linux/iio/common/cros_ec_sensors_core.h | 2 --
> > 6 files changed, 15 insertions(+), 28 deletions(-)
> >
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-05-08 19:17 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2022-04-27 19:08 [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute Gwendal Grignou
2022-04-27 19:08 ` [PATCH v2 1/2] iio: ABI: Add a new location label Gwendal Grignou
2022-04-27 19:08 ` [PATCH v2 2/2] iio: common: cros_ec_sensors: Add label attribute Gwendal Grignou
2022-04-28 8:31 ` [PATCH v2 0/2] chrome: Remove Custom ABI |location| attribute Jonathan Cameron
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