On 10/22/2015 11:43 AM, Rob Herring wrote:
On Mon, Oct 19, 2015 at 12:43 AM, Pramod Kumar <pramodku@xxxxxxxxxxxx> wrote:
Add ngpios property to the gpio controller's DT node so that controller
driver extracts total number of gpio lines present in controller
from DT and removes dependency on driver.
Signed-off-by: Pramod Kumar <pramodku@xxxxxxxxxxxx>
Reviewed-by: Ray Jui <rjui@xxxxxxxxxxxx>
Reviewed-by: Scott Branden <sbranden@xxxxxxxxxxxx>
---
Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
index f92b833..655a8d7 100644
--- a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
@@ -10,6 +10,9 @@ Required properties:
Define the base and range of the I/O address space that contains the Cygnus
GPIO/PINCONF controller registers
+- ngpios:
+ Total number of GPIOs the controller provides
This must be optional for compatibility and the driver needs to handle
it not present.
You meant to be compatible with existing Cygnus devices, correct?
Just to clarify, here you suggest we still leave the existing hard coded
ngpios in the driver, in order to be compatible with all existing Cygnus
devices (while the Cygnus device tree changes to use ngpio is still
being merged and through different maintainer), and have all new iProc
SoCs switch to use ngpios from device tree, right?
Thanks,
Ray
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