On Tue 07 Dec 04:08 CST 2021, Rajendra Nayak wrote:
> While the requirement to specify the active + sleep and active-only MX
> power-domains as the parents of the corresponding CX power domains is
> applicable for most SoCs, we have some like the sc7280 where this
> dependency is not applicable.
> Define new rpmhpd structs for cx and cx_ao without the mx as
> parent and use them for sc7280.
>
> Signed-off-by: Rajendra Nayak <quic_rjendra@xxxxxxxxxxx>
> ---
> drivers/soc/qcom/rpmhpd.c | 18 ++++++++++++++++--
> 1 file changed, 16 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
> index c71481d..4599efe 100644
> --- a/drivers/soc/qcom/rpmhpd.c
> +++ b/drivers/soc/qcom/rpmhpd.c
> @@ -120,6 +120,20 @@ static struct rpmhpd cx_ao = {
> .res_name = "cx.lvl",
> };
>
> +static struct rpmhpd cx_ao_no_parent;
> +static struct rpmhpd cx_no_parent = {
There are multiple variations of how each of these can be parented, but
only one way they can be without a parent. So how about we turn this the
other way around?
I.e. let's name this one "cx" and the existing one "cx_w_mx_parent".
This will be particularly useful when you look at mmcx, which on
8150/8180 has mx as parent and on 8450 has cx as parent.
PS. Unfortunately I had merged 8450 since you wrote this series, I tried
to just fix it up as I applied your patch, but noticed 8450_cx and
8450_mmcx and wanted to get your opinion on this first.
Regards,
Bjorn
> + .pd = { .name = "cx", },
> + .peer = &cx_ao_no_parent,
> + .res_name = "cx.lvl",
> +};
> +
> +static struct rpmhpd cx_ao_no_parent = {
> + .pd = { .name = "cx_ao", },
> + .active_only = true,
> + .peer = &cx_no_parent,
> + .res_name = "cx.lvl",
> +};
> +
> static struct rpmhpd mmcx_ao;
> static struct rpmhpd mmcx = {
> .pd = { .name = "mmcx", },
> @@ -273,8 +287,8 @@ static const struct rpmhpd_desc sc7180_desc = {
>
> /* SC7280 RPMH powerdomains */
> static struct rpmhpd *sc7280_rpmhpds[] = {
> - [SC7280_CX] = &cx,
> - [SC7280_CX_AO] = &cx_ao,
> + [SC7280_CX] = &cx_no_parent,
> + [SC7280_CX_AO] = &cx_ao_no_parent,
> [SC7280_EBI] = &ebi,
> [SC7280_GFX] = &gfx,
> [SC7280_MX] = &mx,
> --
> 2.7.4
>
