Re: [PATCH 2/3] nvmem: sunxi_sid: Add support for H616 SID

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On Fri, Aug 11 2023 at 12:17:54 PM +01:00:00, Andre Przywara <andre.przywara@xxxxxxx> wrote:
On Fri, 11 Aug 2023 13:02:35 +0200
Martin Botka <martin.botka@xxxxxxxxxxxxxx> wrote:

Hi Martin,

 Add support for the H616 SID controller.

thanks for upstreaming this!


 The config can be reused from A64.

 Signed-off-by: Martin Botka <martin.botka@xxxxxxxxxxxxxx>
 ---
  drivers/nvmem/sunxi_sid.c | 1 +
  1 file changed, 1 insertion(+)

 diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
 index a970f1741cc6..df6fb5e0b724 100644
 --- a/drivers/nvmem/sunxi_sid.c
 +++ b/drivers/nvmem/sunxi_sid.c
@@ -216,6 +216,7 @@ static const struct of_device_id sunxi_sid_of_match[] = { { .compatible = "allwinner,sun50i-a64-sid", .data = &sun50i_a64_cfg }, { .compatible = "allwinner,sun50i-h5-sid", .data = &sun50i_a64_cfg }, { .compatible = "allwinner,sun50i-h6-sid", .data = &sun50i_h6_cfg }, + { .compatible = "allwinner,sun50i-h616-sid", .data = &sun50i_a64_cfg },

You don't need a new compatible string, then.
Just use
compatible = "allwinner,sun50i-h616-sid", "allwinner,sun50i-a64-sid";
in the DT, and add that combo to the binding, then you don't need any
driver patches at all - with the added benefit of that already working
with existing kernels.
I added it cause H5 and A83T were added after their DT binding was in and they also use A64 config. But I will drop this patch and use a64 compatible if that is the prefered way :)

Though I wonder if that has really only 256 bytes of fuses? Do we have any
evidence of that?
Datasheet has 0 info regarding this. The way i got the size and offset was to check the vendor code.
The values matched A64.

Cheers,
Andre

  	{/* sentinel */},
  };
  MODULE_DEVICE_TABLE(of, sunxi_sid_of_match);







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