diff options
| author | Judith Mendez <jm@ti.com> | 2023-06-15 10:04:16 +0200 |
|---|---|---|
| committer | Hiago De Franco <hiago.franco@toradex.com> | 2023-06-16 18:22:24 +0200 |
| commit | 12a61f35933af8326d8267335d425b159eef71f1 (patch) | |
| tree | 9a019a81141fb4a2b2ab59e0e414819f6c69f14a | |
| parent | 7b31c8aed5b3dea44e45e7ef8bff315fe50f3ad0 (diff) | |
dt-bindings: net: can: Remove interrupt properties for MCAN
On AM62x SoC, MCANs on MCU domain do not have hardware interrupt
routed to A53 Linux, instead they will use software interrupt by
timer polling.
To enable timer polling method, interrupts should be
optional so remove interrupts property from required section and
add an example for MCAN node with timer polling enabled.
Upstream-Status: Submitted [https://lore.kernel.org/all/20230530224820.303619-2-jm@ti.com/]
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Judith Mendez <jm@ti.com>
| -rw-r--r-- | Documentation/devicetree/bindings/net/can/bosch,m_can.yaml | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml index d8289c93c389..08f3562087c8 100644 --- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml +++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml @@ -122,8 +122,6 @@ required: - compatible - reg - reg-names - - interrupts - - interrupt-names - clocks - clock-names - bosch,mram-cfg @@ -132,6 +130,7 @@ additionalProperties: false examples: - | + // Example with interrupts #include <dt-bindings/clock/imx6sx-clock.h> can@20e8000 { compatible = "bosch,m_can"; @@ -149,4 +148,21 @@ examples: }; }; + - | + // Example with timer polling + #include <dt-bindings/clock/imx6sx-clock.h> + can@20e8000 { + compatible = "bosch,m_can"; + reg = <0x020e8000 0x4000>, <0x02298000 0x4000>; + reg-names = "m_can", "message_ram"; + clocks = <&clks IMX6SX_CLK_CANFD>, + <&clks IMX6SX_CLK_CANFD>; + clock-names = "hclk", "cclk"; + bosch,mram-cfg = <0x0 0 0 32 0 0 0 1>; + + can-transceiver { + max-bitrate = <5000000>; + }; + }; + ... |