[PATCH v2 0/3] Fix RV1106 SAR-ADC support

[PATCH v2 0/3] Fix RV1106 SAR-ADC support

[Vladislav Leonov]

This series fixes the support for the RV1106 SAR-ADC in the
rockchip_saradc driver and its device tree bindings.

Changes in v2:
- Combined the driver patch and the dt-binding fix into a series, as
  requested by Jonathan.
- Introduced a new patch (2/3) to group single-entries into an enum list,
  as suggested by Krzysztof.
- Added missing Suggested-by tag to the patch 3/3
- rockchip,rv1106-saradc compatible moved from the
  single-entry to enum list in the patch 3/3

Vladislav Leonov (3):
  iio: adc: rockchip_saradc: Add support for RV1106
  dt-bindings: iio: adc: rockchip-saradc: Group single-entries into an
    enum list
  dt-bindings: iio: adc: rockchip-saradc: Fix RV1106 compatible

 .../bindings/iio/adc/rockchip-saradc.yaml      | 18 +++++++++---------
 drivers/iio/adc/rockchip_saradc.c              | 16 ++++++++++++++++
 2 files changed, 25 insertions(+), 9 deletions(-)

-- 
2.47.3

[PATCH v2 2/3] dt-bindings: iio: adc: rockchip-saradc: Group single-entries into an enum list

[Vladislav Leonov]

Group single-entries into an enum list

Suggested-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Vladislav Leonov <vlad@zlab.su>
---

Changes in v2:
- Patch introduced in v2.

 .../bindings/iio/adc/rockchip-saradc.yaml           | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
index f0551d665916..78ec9a33da24 100644
--- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
@@ -12,15 +12,16 @@ maintainers:
 properties:
   compatible:
     oneOf:
-      - const: rockchip,saradc
-      - const: rockchip,rk3066-tsadc
-      - const: rockchip,rk3399-saradc
-      - const: rockchip,rk3528-saradc
+      - enum:
+          - rockchip,saradc
+          - rockchip,rk3066-tsadc
+          - rockchip,rk3399-saradc
+          - rockchip,rk3528-saradc
+          - rockchip,rk3562-saradc
+          - rockchip,rk3588-saradc
       - items:
           - const: rockchip,rk3506-saradc
           - const: rockchip,rk3528-saradc
-      - const: rockchip,rk3562-saradc
-      - const: rockchip,rk3588-saradc
       - items:
           - enum:
               - rockchip,rk3576-saradc
-- 
2.47.3

[PATCH v2 3/3] dt-bindings: iio: adc: rockchip-saradc: Fix RV1106 compatible

[Vladislav Leonov]

rockchip,rv1106-saradc was folded into the fallback enum together
with rockchip,rk3576-saradc, falling back to rockchip,rk3588-saradc.
The two IP blocks are not equivalent, though: per the RV1106 TRM v0.3,
chapter 20 (SAR-ADC), RV1106 only has 2 channels at 10-bit resolution,
versus 8 channels at 12-bit on RK3588. Documenting it as falling back
to rk3588-saradc allows device trees that would bind against the wrong
channel table and report an incorrect voltage scale.

Remove rockchip,rv1106-saradc from the RK3588 fallback enum and give
it its own standalone compatible entry, matching the dedicated match
table entry added by the driver patch.

Fixes: bdba14f6122c ("dt-bindings: iio: adc: rockchip-saradc: Add RV1106 compatible")
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Vladislav Leonov <vlad@zlab.su>
---

Changes in v2:
- Added missing Suggested-by tag.
- rockchip,rv1106-saradc compatible moved from the single-entry to enum list.

v1 https://lore.kernel.org/all/20260816113636.33635-1-vlad@zlab.su

 .../devicetree/bindings/iio/adc/rockchip-saradc.yaml         | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
index 78ec9a33da24..0cce357cb01d 100644
--- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
@@ -19,13 +19,12 @@ properties:
           - rockchip,rk3528-saradc
           - rockchip,rk3562-saradc
           - rockchip,rk3588-saradc
+          - rockchip,rv1106-saradc
       - items:
           - const: rockchip,rk3506-saradc
           - const: rockchip,rk3528-saradc
       - items:
-          - enum:
-              - rockchip,rk3576-saradc
-              - rockchip,rv1106-saradc
+          - const: rockchip,rk3576-saradc
           - const: rockchip,rk3588-saradc
       - items:
           - enum:
-- 
2.47.3

Re: [PATCH v2 3/3] dt-bindings: iio: adc: rockchip-saradc: Fix RV1106 compatible

[Conor Dooley]

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Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

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Re: [PATCH v2 2/3] dt-bindings: iio: adc: rockchip-saradc: Group single-entries into an enum list

[Conor Dooley]

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Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

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