Re: [PATCH v3 04/10] nvmem: qfprom: Add support for secure reading on QDU1000/QRU1000

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On 12/05/2023 14:21, Komal Bajaj wrote:
> Add qfprom driver support for QDU1000/QRU1000 SOCs.
> 
> Signed-off-by: Komal Bajaj <quic_kbajaj@xxxxxxxxxxx>
> ---
>  drivers/nvmem/qfprom.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c
> index 20662e2d3732..12a7981a8a71 100644
> --- a/drivers/nvmem/qfprom.c
> +++ b/drivers/nvmem/qfprom.c
> @@ -109,6 +109,10 @@ struct qfprom_soc_compatible_data {
>  	bool secure;
>  };
> 
> +static const struct qfprom_soc_compatible_data qdu1000_qfprom = {
> +	.secure = true
> +};
> +
>  static const struct nvmem_keepout sc7180_qfprom_keepout[] = {
>  	{.start = 0x128, .end = 0x148},
>  	{.start = 0x220, .end = 0x228}
> @@ -490,6 +494,7 @@ static int qfprom_probe(struct platform_device *pdev)
> 
>  static const struct of_device_id qfprom_of_match[] = {
>  	{ .compatible = "qcom,qfprom",},
> +	{ .compatible = "qcom,qdu1000-qfprom", .data = &qdu1000_qfprom},
>  	{ .compatible = "qcom,sc7180-qfprom", .data = &sc7180_qfprom},

I have doubts that this is still compatible with qcom,qfprom. It uses
entirely different read method. That's why generic fallbacks are bad,
one more case to my growing list of awesome examples. :)

Best regards,
Krzysztof




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