Re: [PATCH 4/4] arm: dts: zynq: Replace 'io-standard' with 'power-source' property

On 8/2/21 7:29 PM, Rob Herring wrote:

On Thu, Jul 29, 2021 at 10:59 PM Michal Simek [off-list ref] wrote:

quoted

On 7/29/21 9:59 PM, Rob Herring wrote:

quoted

On Wed, Jul 21, 2021 at 05:22:33PM +0530, Sai Krishna Potthuri wrote:

quoted

Replace 'io-standard' property with 'power-source' property in all zynq dts
files to be in sync with Zynq pinctrl driver.

Signed-off-by: Sai Krishna Potthuri <redacted>
---
 arch/arm/boot/dts/zynq-ebaz4205.dts |  8 ++++----
 arch/arm/boot/dts/zynq-microzed.dts |  2 +-
 arch/arm/boot/dts/zynq-zc702.dts    | 20 ++++++++++----------
 arch/arm/boot/dts/zynq-zc706.dts    | 18 +++++++++---------
 4 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/arch/arm/boot/dts/zynq-ebaz4205.dts b/arch/arm/boot/dts/zynq-ebaz4205.dts
index b0b836aedd76..be7eae611fb7 100644
--- a/arch/arm/boot/dts/zynq-ebaz4205.dts
+++ b/arch/arm/boot/dts/zynq-ebaz4205.dts

@@ -57,7 +57,7 @@

             conf {
                     groups = "gpio0_20_grp", "gpio0_32_grp";
-                    io-standard = <3>;
+                    power-source = <3>;

This will break using a new DT with a kernel without patch 3.

What do you suggest? Not to update any old DT?

Your options are don't change the dts files, patch 3 needs to go to
stable kernels, or you document the breakage (if you don't care).

There is no intention to go to stable kernel and I don't think this is
stable material. Linus has applied 3 patches and this one should go via
my tree. It means I will make sure that this DT change will be in the
tree when pinctrl changes are applied.

Thanks,
Michal