[PATCH v1] drivers: meson: secure-pwrc: always enable DMA domain

[neil.armstrong at linaro.org]

On 10/06/2023 11:04, Alexey Romanov wrote:
> Starting from commit e45f243409db ("firmware: meson_sm:
> populate platform devices from sm device tree data") pwrc
> is probed successfully and disables unused pwr domains.
> By A1 SoC family design, any TEE requires DMA pwr domain
> always enabled.
> 
> Signed-off-by: Alexey Romanov <avromanov at sberdevices.ru>
> ---
> I'm not entirely sure if this domain should always be enabled on or it
> should be separately enabled in dts file. Comments are welcome.
> ---
>   drivers/soc/amlogic/meson-secure-pwrc.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/soc/amlogic/meson-secure-pwrc.c b/drivers/soc/amlogic/meson-secure-pwrc.c
> index e93518763526..25b4b71df9b8 100644
> --- a/drivers/soc/amlogic/meson-secure-pwrc.c
> +++ b/drivers/soc/amlogic/meson-secure-pwrc.c
> @@ -105,7 +105,7 @@ static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
>   	SEC_PD(ACODEC,	0),
>   	SEC_PD(AUDIO,	0),
>   	SEC_PD(OTP,	0),
> -	SEC_PD(DMA,	0),
> +	SEC_PD(DMA,	GENPD_FLAG_ALWAYS_ON | GENPD_FLAG_IRQ_SAFE),
>   	SEC_PD(SD_EMMC,	0),
>   	SEC_PD(RAMA,	0),
>   	/* SRAMB is used as ATF runtime memory, and should be always on */

It's fine to keep it enabled.

Acked-by: Neil Armstrong <neil.armstrong at linaro.org>

Neil