diff mbox series

[V4,3/7] devicetree-binding: Add pmc gpio node

Message ID 1592393847-1415-4-git-send-email-srinivas.neeli@xilinx.com
State New
Headers show
Series gpio: zynq: Update on gpio-zynq driver | expand

Commit Message

Srinivas Neeli June 17, 2020, 11:37 a.m. UTC 
From: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>

Add the pmc gpio node to the device tree.

Versal devices are the industry's first adaptive compute
acceleration platforms.
https://www.xilinx.com/support/documentation/data_sheets/ds950-versal-overview.pdf

On the Versal platform, we are using two customized GPIO controllers(IP)
which were used in Zynq/ZynqMp platform.
One of them present in the Platform Management Controller(PMC) block and
other in Processing System(PS) block.

In PMC_GPIO only Bank0,1,3 & 4 are enabled and in PS_GPIO only
Bank 0 & 3 are enabled.

You can find more details of GPIO IP in ZynqMP TRM General Purpose
I/O(Chapter-27).
https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 Documentation/devicetree/bindings/gpio/gpio-zynq.txt | 1 +
 1 file changed, 1 insertion(+)

Comments

Bartosz Golaszewski June 24, 2020, 10:18 a.m. UTC | #1 
śr., 17 cze 2020 o 13:37 Srinivas Neeli <srinivas.neeli@xilinx.com> napisał(a):
>
> From: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
>
> Add the pmc gpio node to the device tree.
>
> Versal devices are the industry's first adaptive compute
> acceleration platforms.
> https://www.xilinx.com/support/documentation/data_sheets/ds950-versal-overview.pdf
>
> On the Versal platform, we are using two customized GPIO controllers(IP)
> which were used in Zynq/ZynqMp platform.
> One of them present in the Platform Management Controller(PMC) block and
> other in Processing System(PS) block.
>
> In PMC_GPIO only Bank0,1,3 & 4 are enabled and in PS_GPIO only
> Bank 0 & 3 are enabled.
>
> You can find more details of GPIO IP in ZynqMP TRM General Purpose
> I/O(Chapter-27).
> https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf
>
> Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
> Signed-off-by: Michal Simek <michal.simek@xilinx.com>

I fixed up the subject - should have been "dt-bindings: gpio: ..."

Bartosz
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/gpio/gpio-zynq.txt b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt
index 4806d846c0fc..f693e82b4c0f 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-zynq.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt
@@ -8,6 +8,7 @@  Required properties:
 			    parameters (unused)
 - compatible		: Should be "xlnx,zynq-gpio-1.0" or
 			  "xlnx,zynqmp-gpio-1.0" or "xlnx,versal-gpio-1.0
+			  or "xlnx,pmc-gpio-1.0
 - clocks		: Clock specifier (see clock bindings for details)
 - gpio-controller	: Marks the device node as a GPIO controller.
 - interrupts		: Interrupt specifier (see interrupt bindings for