Re: [PATCH v2 6/8] i2c: qcom-geni: Load i2c qup Firmware from linux side

[Dmitry Baryshkov]

On Fri, Jan 24, 2025 at 04:23:07PM +0530, Viken Dadhaniya wrote:
> Add provision to load firmware of Serial engine for I2C protocol from
> Linux Execution Environment on running on APPS processor.
> 
> Co-developed-by: Mukesh Kumar Savaliya <quic_msavaliy@xxxxxxxxxxx>
> Signed-off-by: Mukesh Kumar Savaliya <quic_msavaliy@xxxxxxxxxxx>
> Signed-off-by: Viken Dadhaniya <quic_vdadhani@xxxxxxxxxxx>
> ---
>  drivers/i2c/busses/i2c-qcom-geni.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
> index 7bbd478171e0..9ad3b8c9a224 100644
> --- a/drivers/i2c/busses/i2c-qcom-geni.c
> +++ b/drivers/i2c/busses/i2c-qcom-geni.c
> @@ -872,8 +872,11 @@ static int geni_i2c_probe(struct platform_device *pdev)
>  	}
>  	proto = geni_se_read_proto(&gi2c->se);
>  	if (proto != GENI_SE_I2C) {
> -		ret = dev_err_probe(dev, -ENXIO, "Invalid proto %d\n", proto);
> -		goto err_resources;
> +		ret = geni_load_se_firmware(&gi2c->se, GENI_SE_I2C);

Hmm, so if the SE has been configured to e.g. SPI by the TZ, can we
switch it to the I2C?

> +		if (ret) {
> +			dev_err(gi2c->se.dev, "i2c firmware load failed ret: %d\n", ret);
> +			goto err_resources;
> +		}
>  	}
>  
>  	if (desc && desc->no_dma_support)
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry