On 14/01/2020 11:10:14+0000, Claudiu.Beznea@microchip.com wrote:

On 14.01.2020 12:42, Alexandre Belloni wrote:

quoted

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On 14/01/2020 12:23:14+0200, Claudiu Beznea wrote:

quoted

Remove chip whildcard and introduce the list of compatibles instead.

Signed-off-by: Claudiu Beznea <redacted>
---
 Documentation/devicetree/bindings/mfd/atmel-usart.txt | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/atmel-usart.txt b/Documentation/devicetree/bindings/mfd/atmel-usart.txt
index 699fd3c9ace8..778e8310606a 100644
--- a/Documentation/devicetree/bindings/mfd/atmel-usart.txt
+++ b/Documentation/devicetree/bindings/mfd/atmel-usart.txt

@@ -1,10 +1,9 @@
 * Atmel Universal Synchronous Asynchronous Receiver/Transmitter (USART)

 Required properties for USART:
-- compatible: Should be "atmel,<chip>-usart" or "atmel,<chip>-dbgu"
-  The compatible <chip> indicated will be the first SoC to support an
-  additional mode or an USART new feature.
-  For the dbgu UART, use "atmel,<chip>-dbgu", "atmel,<chip>-usart"
+- compatible: Should be one of the following:
+     - "atmel,at91rm9200-dbgu", "atmel,at91rm9200-usart"
+     - "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart"

All the uarts are not dbgus, so this need to be:

 - "atmel,at91rm9200-usart"
 - "atmel,at91sam9260-usart"
 - "atmel,at91rm9200-dbgu", "atmel,at91rm9200-usart"
 - "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart"

Ok!

quoted

Also, you need to update drivers/soc/atmel/soc.c

OK. Did you refer to CIDR, EXID registers? They are at the same offsets as
for the old products. So we can rely on old compatible for them. Is this OK?

Then, what is the point of adding microchip,sam9x60-dbgu ?


-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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