[PATCH] tty: serial: msm_serial: Use DT aliases
From: Frank Rowand <hidden>
Date: 2014-11-11 02:20:07
Also in:
linux-arm-msm, linux-serial, lkml
From: Frank Rowand <redacted>
v2, changes from v1:
- The patch this documents was updated to make the serialN alias
optional instead of required.
Update devicetree binding for msm_serial to reflect msm_serial_probe()
getting line id from the serial alias.
Signed-off-by: Frank Rowand <redacted>
---
Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt | 15 +++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
Index: linux/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt
===================================================================--- linux.orig/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt
+++ linux/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt@@ -27,11 +27,21 @@ Optional properties: - dmas: Should contain dma specifiers for transmit and receive channels - dma-names: Should contain "tx" for transmit and "rx" for receive channels +Note: Each UART port should have an alias correctly numbered in the +"aliases" node, according to serialN format, where N is the port number +(non-negative decimal integer). If the aliases are not present then +the port numbers will be 0..(number of UARTS - 1), assigned in the driver +probe order. + Examples: A uartdm v1.4 device with dma capabilities. -serial at f991e000 { +aliases { + serial0 = &serial0; +}; + +serial0: serial at f991e000 { compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm"; reg = <0xf991e000 0x1000>; interrupts = <0 108 0x0>;
@@ -43,7 +53,11 @@ serial at f991e000 { A uartdm v1.3 device without dma capabilities and part of a GSBI complex. -serial at 19c40000 { +aliases { + serial0 = &serial0; +}; + +serial0: serial at 19c40000 { compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm"; reg = <0x19c40000 0x1000>, <0x19c00000 0x1000>;