kernel/git/stable/linux.git/drivers/iio/temperature, branch linux-5.11.y

iio: hid-sensors: select IIO_TRIGGERED_BUFFER under HID_SENSOR_IIO_TRIGGER

2021-05-19T08:29:52+00:00

[ Upstream commit 7061803522ee7876df1ca18cdd1e1551f761352d ] During commit 067fda1c065ff ("iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger"), the iio_triggered_buffer_{setup,cleanup}() functions got moved under the hid-sensor-trigger module. The above change works fine, if any of the sensors get built. However, when only the common hid-sensor-trigger module gets built (and none of the drivers), then the IIO_TRIGGERED_BUFFER symbol isn't selected/enforced. Previously, each driver would enforce/select the IIO_TRIGGERED_BUFFER symbol. With this change the HID_SENSOR_IIO_TRIGGER (for the hid-sensor-trigger module) will enforce that IIO_TRIGGERED_BUFFER gets selected. All HID sensor drivers select the HID_SENSOR_IIO_TRIGGER symbol. So, this change removes the IIO_TRIGGERED_BUFFER enforcement from each driver. Fixes: 067fda1c065ff ("iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger") Reported-by: Thomas Deutschmann Cc: Srinivas Pandruvada Signed-off-by: Alexandru Ardelean Acked-by: Srinivas Pandruvada Link: https://lore.kernel.org/r/20210414084955.260117-1-aardelean@deviqon.com Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin

iio: hid-sensor-temperature: Fix issues of timestamp channel

2021-03-24T10:54:14+00:00

commit 141e7633aa4d2838d1f6ad5c74cccc53547c16ac upstream. This patch fixes 2 issues of timestamp channel: 1. This patch ensures that there is sufficient space and correct alignment for the timestamp. 2. Correct the timestamp channel scan index. Fixes: 59d0f2da3569 ("iio: hid: Add temperature sensor support") Signed-off-by: Ye Xiang Cc: Link: https://lore.kernel.org/r/20210303063615.12130-4-xiang.ye@intel.com Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

drivers: iio: temperature: Add delay after the addressed reset command in mlx90632.c

2021-01-14T20:56:55+00:00

After an I2C reset command, the mlx90632 needs some time before responding to other I2C commands. Without that delay, there is a chance that the I2C command(s) after the reset will not be accepted. Signed-off-by: Slaveyko Slaveykov Reviewed-by: Andy Shevchenko Reviewed-by: Crt Mori Fixes: e02472f74a81 ("iio:temperature:mlx90632: Adding extended calibration option") Link: https://lore.kernel.org/r/20201216115720.12404-2-sis@melexis.com Cc: Signed-off-by: Jonathan Cameron

iio: ltc2983: Fix of_node refcounting

2020-09-29T16:34:18+00:00

When returning or breaking early from a `for_each_available_child_of_node()` loop, we need to explicitly call `of_node_put()` on the child node to possibly release the node. Fixes: f110f3188e563 ("iio: temperature: Add support for LTC2983") Signed-off-by: Nuno Sá Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200925091045.302-1-nuno.sa@analog.com Signed-off-by: Jonathan Cameron

iio:temperature:tmp007: Drop of_match_ptr protection

2020-09-21T17:41:30+00:00

This prevents use of this driver with ACPI via PRP0001 and is an example of an anti pattern I'm trying to remove from IIO. Hence drop from this driver. Signed-off-by: Jonathan Cameron Reviewed-by: Andy Shevchenko Cc: Manivannan Sadhasivam Link: https://lore.kernel.org/r/20200910173242.621168-23-jic23@kernel.org

iio:temperature:tsys01: Drop of_match_ptr protection

2020-09-21T17:41:30+00:00

This prevents use of this driver with ACPI via PRP0001 and is an example of an anti pattern I'm trying to remove from IIO. Hence drop from this driver. Signed-off-by: Jonathan Cameron Reviewed-by: Andy Shevchenko Cc: Ludovic Tancerel Link: https://lore.kernel.org/r/20200910173242.621168-22-jic23@kernel.org

iio: temperature: mlx90632: Interface to change object ambient temperature

2020-09-13T09:21:37+00:00

Since object temperature might be different than the sensor temperature the infrared sensors should provide an interface to inject ambient temperature. This was in past done via write to ambient temperature interface (in_temp_ambient_raw), but I think most people did not know about it. This solution introduces a new iio type of the CALIBAMBIENT which is hopefully more descriptive and more explicit about the purpose and capabilities of the sensors. Signed-off-by: Crt Mori Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20200906210231.383976-1-cmo@melexis.com Signed-off-by: Jonathan Cameron

iio:temperature:mlx90632: Some stylefixing leftovers

2020-09-03T18:40:56+00:00

There is some inconsistency and whitespace cleanup performed in this patch. It was done on top of my other patches, but I can rebase to head of the togreg branch if it would go in sooner. Signed-off-by: Crt Mori Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20200818213737.140613-6-cmo@melexis.com Signed-off-by: Jonathan Cameron

iio:temperature:mlx90632: Adding extended calibration option

2020-09-03T18:40:55+00:00

For some time the market wants medical grade accuracy in medical range, while still retaining the declared accuracy outside of the medical range within the same sensor. That is why we created extended calibration which is automatically switched to when object temperature is too high. This patch also introduces the object_ambient_temperature variable which is needed for more accurate calculation of the object infra-red footprint as sensor's ambient temperature might be totally different than what the ambient temperature is at object and that is why we can have some more errors which can be eliminated. Currently this temperature is fixed at 25, but the interface to adjust it by user (with external sensor or just IR measurement of the other object which acts as ambient), will be introduced in another commit. Signed-off-by: Crt Mori Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20200818213737.140613-5-cmo@melexis.com Signed-off-by: Jonathan Cameron

iio:temperature:mlx90632: Convert polling while loop to regmap

2020-09-03T18:40:55+00:00

Reduce number of lines and improve readability to convert polling while loops to regmap_read_poll_timeout. Signed-off-by: Crt Mori Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20200818213737.140613-4-cmo@melexis.com Signed-off-by: Jonathan Cameron