diff options
| author | Frank Li <Frank.Li@nxp.com> | 2025-06-02 17:27:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-29 15:19:27 +0300 |
| commit | d2db0d78154442fb89165edf8836bf2644c6c58d (patch) | |
| tree | fb19a68b6c5d48eedc5e04ed72e84421e0c871b7 | |
| parent | 6241b49540a65a6d5274fa938fd3eb4cbfe2e076 (diff) | |
| download | linux-d2db0d78154442fb89165edf8836bf2644c6c58d.tar.xz | |
dt-bindings: serial: 8250: allow clock 'uartclk' and 'reg' for nxp,lpc1850-uart
Allow clock 'uartclk' and 'reg' for nxp,lpc1850-uart to align existed
driver and dts. It is really old platform. Keep the same restriction for
others.
Allow dmas and dma-names property, which allow maxItems 4 because very old
platform (arch/arm/boot/dts/nxp/lpc/lpc18xx.dtsi) use duplicate "tx", "rx",
"tx", "rx" as dma-names.
Fix below CHECK_DTB warnings:
arch/arm/boot/dts/nxp/lpc/lpc4337-ciaa.dtb: serial@40081000 (nxp,lpc1850-uart): clock-names: ['uartclk', 'reg'] is too long
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250602142745.942568-1-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | Documentation/devicetree/bindings/serial/8250.yaml | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/serial/8250.yaml b/Documentation/devicetree/bindings/serial/8250.yaml index 33d2016b6509..08b8d7c6df0f 100644 --- a/Documentation/devicetree/bindings/serial/8250.yaml +++ b/Documentation/devicetree/bindings/serial/8250.yaml @@ -49,6 +49,24 @@ allOf: - required: [ clock-frequency ] - required: [ clocks ] + - if: + properties: + compatible: + contains: + const: nxp,lpc1850-uart + then: + properties: + clock-names: + items: + - const: uartclk + - const: reg + else: + properties: + clock-names: + items: + - const: core + - const: bus + properties: compatible: oneOf: @@ -142,9 +160,22 @@ properties: clock-names: minItems: 1 - items: - - const: core - - const: bus + maxItems: 2 + oneOf: + - items: + - const: core + - const: bus + - items: + - const: uartclk + - const: reg + + dmas: + minItems: 1 + maxItems: 4 + + dma-names: + minItems: 1 + maxItems: 4 resets: maxItems: 1 @@ -237,7 +268,9 @@ if: properties: compatible: contains: - const: spacemit,k1-uart + enum: + - spacemit,k1-uart + - nxp,lpc1850-uart then: required: [clock-names] properties: |