[PATCH v3 0/4] iio: proximity: hx9023s: firmware property, safety fixes

[Yasin Lee]

Hi,

This series contains a set of small fixes and improvements for the hx9023s
proximity sensor driver.

The changes include:

- Fixing assignment order for __counted_by.
- Avoiding a division-by-zero case when the sampling frequency is unspecified.
- Allowing the firmware file name to be specified via firmware-name property,
  along with the corresponding DT binding update.

All changes are independent but related to robustness and platform support,
and are grouped together for easier review.

Tested on a DT-based platform with firmware loading enabled.

Thanks for your time and review.

Best regards,
Yasin Lee

Signed-off-by: Yasin Lee <yasin.lee.x@xxxxxxxxx>
---
Changes in v3:
- Patch 1: Refined the commit message to accurately describe the __counted_by requirement.
- Patch 2: Updated the zero-check logic to if (!val && !val2) as suggested by Andy.
- Patch 3: Enhanced the commit message to explain the necessity of the firmware-name property.
- Patch 4: Collected Andy's Reviewed-by tag.
- Link to v2: https://lore.kernel.org/r/20260212-upstream-20260219-v2-0-2b28fce5d09e@xxxxxxxxx

Changes in v2:
- Patch 1: Added Fixes tag
- Patch 2: 
    - Added Fixes tag
    - Changed conditional logic to positive style (val || val2) as suggested
- Patch 3 (dt-bindings): 
    - Removed redundant description.
    - This patch now comes before driver implementation (documentation first)
- Patch 4 (driver): 
    - Fixed variable declaration order (reverse xmas tree)
    - Split declaration and assignment for fw_name
    - Removed unnecessary error checking for device_property_read_string()
    - Simplified to: fw_name = "hx9023s.bin"; device_property_read_string(...);
- Patch 5: Temporarily dropped (ACPI support)
    - Will resubmit separately once TYHX vendor ID is officially registered with UEFI Forum
    - Need to provide verified DSDT evidence
- Link to v1: https://lore.kernel.org/r/20260209-upstream-20260219-v1-0-2b4d74e309d1@xxxxxxxxx

---
Yasin Lee (4):
      iio: proximity: hx9023s: fix assignment order for __counted_by
      iio: proximity: hx9023s: Protect against division by zero in set_samp_freq
      dt-bindings: iio: proximity: hx9023s: support firmware-name property
      iio: proximity: hx9023s: support firmware-name property

 .../devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml       |  4 ++++
 drivers/iio/proximity/hx9023s.c                               | 11 ++++++++---
 2 files changed, 12 insertions(+), 3 deletions(-)
---
base-commit: c8bfb63c902678228a0a265e22a5f55404988a43
change-id: 20260209-upstream-20260219-a7af6d9a85ad

Best regards,
-- 
Yasin Lee <yasin.lee.x@xxxxxxxxx>