Hi, Rob

Subject: Re: [PATCH V2 4/5] dt-bindings: serial: Convert MXS auart to
json-schema

On Wed, Aug 12, 2020 at 04:51:23PM +0800, Anson Huang wrote:

quoted

Convert the MXS auart binding to DT schema format using json-schema.

Signed-off-by: Anson Huang <redacted>
---
changes since V1:
	- update examples to align with i.MX23/i.MX28 clock bindings;
	- add minItem to clocks/clock-names property as i.MX23/i.MX28 have

optional clocks

quoted

	  property with one item.
---
 .../devicetree/bindings/serial/fsl-mxs-auart.txt   | 53 -------------
 .../devicetree/bindings/serial/fsl-mxs-auart.yaml  | 91
++++++++++++++++++++++
 2 files changed, 91 insertions(+), 53 deletions(-)  delete mode
100644 Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt
 create mode 100644
Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml

diff --git
a/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt
b/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt
deleted file mode 100644
index 5c96d41..0000000

--- a/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt
+++ /dev/null

@@ -1,53 +0,0 @@
-* Freescale MXS Application UART (AUART)
-
-Required properties for all SoCs:
-- compatible : Should be one of fallowing variants:
-	"fsl,imx23-auart" - Freescale i.MX23
-	"fsl,imx28-auart" - Freescale i.MX28
-	"alphascale,asm9260-auart" - Alphascale ASM9260
-- reg : Address and length of the register set for the device
-- interrupts : Should contain the auart interrupt numbers
-- dmas: DMA specifier, consisting of a phandle to DMA controller node
-  and AUART DMA channel ID.
-  Refer to dma.txt and fsl-mxs-dma.txt for details.
-- dma-names: "rx" for RX channel, "tx" for TX channel.
-
-Required properties for "alphascale,asm9260-auart":
-- clocks : the clocks feeding the watchdog timer. See

clock-bindings.txt
-- clock-names : should be set to
-	"mod" - source for tick counter.
-	"ahb" - ahb gate.
-
-Optional properties:
-- uart-has-rtscts : Indicate the UART has RTS and CTS lines
-  for hardware flow control,
-	it also means you enable the DMA support for this UART.
-- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for
RTS/CTS/DTR/DSR/RI/DCD
-  line respectively. It will use specified PIO instead of the
peripheral
-  function pin for the USART feature.
-  If unsure, don't specify this property.
-
-Example:
-auart0: serial@8006a000 {
-	compatible = "fsl,imx28-auart", "fsl,imx23-auart";
-	reg = <0x8006a000 0x2000>;
-	interrupts = <112>;
-	dmas = <&dma_apbx 8>, <&dma_apbx 9>;
-	dma-names = "rx", "tx";
-	cts-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
-	dsr-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
-	dcd-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
-};
-
-Note: Each auart port should have an alias correctly numbered in "aliases"
-node.
-
-Example:
-
-aliases {
-	serial0 = &auart0;
-	serial1 = &auart1;
-	serial2 = &auart2;
-	serial3 = &auart3;
-	serial4 = &auart4;
-};
diff --git
a/Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml
b/Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml
new file mode 100644
index 0000000..5c4fa75

--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml

@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
+---
+$id:
+https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi

+cetree.org%2Fschemas%2Fserial%2Ffsl-mxs-auart.yaml%23&data=02%7
C0

quoted

+1%7CAnson.Huang%40nxp.com%7Cab0ecefb1f8a405a777608d8431ceba7%
7C686ea1

quoted

+d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637333138774276608&
sdata=0eW

quoted

+q1Lnvv2PJcAlS2IThb6DYy9x55jopNRcz%2Fa5YGgc%3D&reserved=0
+$schema:
+https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi

+cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=02%7C01%7CAns
on.Hua

quoted

+ng%40nxp.com%7Cab0ecefb1f8a405a777608d8431ceba7%7C686ea1d3bc2
b4c6fa92

quoted

+cd99c5c301635%7C0%7C0%7C637333138774286606&sdata=77AsG1n
Q%2BFl9x0

quoted

+XStFm6xHXXAO4MNVrkLgezkHni57Y%3D&reserved=0
+
+title: Freescale MXS Application UART (AUART)
+
+maintainers:
+  - Kumar Gala [off-list ref]

Why is Kumar maintainer and that's a really old email address?

I finally found the fist patch of this binding doc, Kumar ONLY did the moving of the file to different
folder, I will update the mainatainer to Fabio in V3.

commit 1ea6607d4cdc917987e7e6cfaafc4a630d97a297
Author: Fabio Estevam [off-list ref]
Date:   Mon Jun 18 10:06:09 2012 -0300

    serial: mxs-auart: Allow device tree probing

    Allow device tree probing.

    Cc: Grant Likely [off-list ref]
    Cc: Rob Herring [off-list ref]
    Cc: Alan Cox [off-list ref]
    Cc: [off-list ref]
    Signed-off-by: Fabio Estevam [off-list ref]
    Signed-off-by: Subodh Nijsure [off-list ref]
    Acked-by: Greg Kroah-Hartman [off-list ref]
    Signed-off-by: Shawn Guo [off-list ref]

Thanks,
Anson