Re: [PATCH 1/2] firmware: qcom: scm: add modparam to control QSEECOM enablement

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 3.11.2024 4:37 PM, Dmitry Baryshkov wrote:
> In preparation to enabling QSEECOM for the platforms rather than
> individual machines provide a mechanism for the user to override default
> selection. Allow users to use qcom_scm.qseecom modparam. Setting it to
> 'force' will enable QSEECOM even if it disabled or not handled by the
> allowlist. Setting it to 'off' will forcebly disable the QSEECOM
> interface, allowing incompatible machines to function. All other values
> mean 'auto', trusting the allowlist in the module.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---

[...]

>  
> -static bool qcom_scm_qseecom_machine_is_allowed(void)
> +static bool qcom_scm_qseecom_machine_is_allowed(struct device *scm_dev)
>  {
>  	struct device_node *np;
>  	bool match;
>  
> +	if (!strcmp(qseecom, "off")) {
> +		dev_info(scm_dev, "qseecom: disabled by modparam\n");
> +		return false;
> +	} else if (!strcmp(qseecom, "force")) {
> +		dev_info(scm_dev, "qseecom: forcebly enabled\n");

forcibly

may also be useful to say "by modparam" here as well

Konrad