[PATCH v4 2/7] dt-bindings: gpio: vf610: correct i.MX8ULP and i.MX93

Rob Herring robh at kernel.org
Thu Sep 28 09:29:12 PDT 2023


On Tue, 26 Sep 2023 11:33:18 +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan at nxp.com>
> 
> i.MX8ULP and i.MX93 actually has two interrupts for each gpio
> controller, one for Trustzone non-secure world, one for secure world.
> 
> And they has one register based, not two as i.MX7ULP or VF610.
> 
> Although the Linux Kernel driver gpio-vf610.c could work with
> fsl,imx7ulp-gpio compatible, it is based on some tricks did in
> device tree with some offset added to base address.
> 
> So actually i.MX8ULP/i.MX93 is not compatible with i.MX7ULP.
> 
> Last, i.MX93 is directly derived from i.MX8ULP, so make i.MX93 GPIO
> compatible with i.MX8ULP
> 
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> ---
>  .../devicetree/bindings/gpio/gpio-vf610.yaml       | 36 +++++++++++++++++++---
>  1 file changed, 31 insertions(+), 5 deletions(-)
> 

Reviewed-by: Rob Herring <robh at kernel.org>




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