Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-23 20:51:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

pmdomain: amlogic: add driver to support power parent node

Browse Source 
Some power domains depends on other domains, Such as Amlogic T7 SoC.
Add parent node to support this case.

Signed-off-by: xianwei.zhao <xianwei.zhao@amlogic.com>
Link: https://lore.kernel.org/r/20230911025223.3433776-3-xianwei.zhao@amlogic.com
[Ulf: Re-based to fit the pmdomain subsystem]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
xianwei.zhao 2023-09-11 10:52:19 +08:00 committed by Ulf Hansson
parent 278adec939
commit efa529b31a
1 changed files with 25 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/pmdomain/amlogic/meson-secure-pwrc.c
View File

@ -19,10 +19,12 @@
#define PWRC_ON 1
#define PWRC_OFF 0
#define PWRC_NO_PARENT UINT_MAX
struct meson_secure_pwrc_domain {
struct generic_pm_domain base;
unsigned int index;
unsigned int parent;
struct meson_secure_pwrc *pwrc;
};
@ -34,6 +36,7 @@ struct meson_secure_pwrc {
struct meson_secure_pwrc_domain_desc {
unsigned int index;
unsigned int parent;
unsigned int flags;
char *name;
bool (*is_off)(struct meson_secure_pwrc_domain *pwrc_domain);
@ -90,8 +93,19 @@ static int meson_secure_pwrc_on(struct generic_pm_domain *domain)
{ \
.name = #__name, \
.index = PWRC_##__name##_ID, \
.is_off = pwrc_secure_is_off, \
.is_off = pwrc_secure_is_off, \
.flags = __flag, \
.parent = PWRC_NO_PARENT, \
}
#define TOP_PD(__name, __flag, __parent) \
[PWRC_##__name##_ID] = \
{ \
.name = #__name, \
.index = PWRC_##__name##_ID, \
.is_off = pwrc_secure_is_off, \
.flags = __flag, \
.parent = __parent, \
}
static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
@ -202,6 +216,7 @@ static int meson_secure_pwrc_probe(struct platform_device *pdev)
dom->pwrc = pwrc;
dom->index = match->domains[i].index;
dom->parent = match->domains[i].parent;
dom->base.name = match->domains[i].name;
dom->base.flags = match->domains[i].flags;
dom->base.power_on = meson_secure_pwrc_on;
@ -212,6 +227,15 @@ static int meson_secure_pwrc_probe(struct platform_device *pdev)
pwrc->xlate.domains[i] = &dom->base;
}
for (i = 0; i < match->count; i++) {
struct meson_secure_pwrc_domain *dom = pwrc->domains;
if (!match->domains[i].name || match->domains[i].parent == PWRC_NO_PARENT)
continue;
pm_genpd_add_subdomain(&dom[dom[i].parent].base, &dom[i].base);
}
return of_genpd_add_provider_onecell(pdev->dev.of_node, &pwrc->xlate);
}