[PATCH v6 1/6] rockchip: power-domain: make idle handling optional

Elaine Zhang
2016-03-09T21:22:53Z

Not all new socs need to handle idle states on domain state changes,
so add the possibility to make them optional.

Signed-off-by: Elaine Zhang <zhangqing-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
---
drivers/soc/rockchip/pm_domains.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c
index 18aee6b..c46312d 100644
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -68,9 +68,9 @@ struct rockchip_pmu {
{ \
.pwr_mask = BIT(pwr), \
.status_mask = BIT(status), \
- .req_mask = BIT(req), \
- .idle_mask = BIT(idle), \
- .ack_mask = BIT(ack), \
+ .req_mask = (req >= 0) ? BIT(req) : 0, \
+ .idle_mask = (idle >= 0) ? BIT(idle) : 0, \
+ .ack_mask = (ack >= 0) ? BIT(ack) : 0, \
}

#define DOMAIN_RK3288(pwr, status, req) \
@@ -96,6 +96,9 @@ static int rockchip_pmu_set_idle_request(struct rockchip_pm_domain *pd,
struct rockchip_pmu *pmu = pd->pmu;
unsigned int val;

+ if (pd_info->req_mask == 0)
+ return 0;
+
regmap_update_bits(pmu->regmap, pmu->info->req_offset,
pd_info->req_mask, idle ? -1U : 0);

--
1.9.1