Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





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
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux SPI]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux