[PATCH v1 1/6] rockchip: power-domain: make idle handling optional

Elaine Zhang
2016-02-15T08:43:09Z

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@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
drivers/soc/rockchip/pm_domains.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c
index 6cdffb1..3dcc611 100644
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -63,14 +63,16 @@ struct rockchip_pmu {
};

#define to_rockchip_pd(gpd) container_of(gpd, struct rockchip_pm_domain, genpd)
+#define NULL_BIT -32
+#define OVERFLOW_MASK 32

#define DOMAIN(pwr, status, req, idle, ack) \
{ \
.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) : OVERFLOW_MASK, \
+ .idle_mask = (idle >= 0) ? BIT(idle) : OVERFLOW_MASK, \
+ .ack_mask = (ack >= 0) ? BIT(ack) : OVERFLOW_MASK, \
}

#define DOMAIN_RK3288(pwr, status, req) \
@@ -96,6 +98,9 @@ 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 >= OVERFLOW_MASK)
+ return 0;
+
regmap_update_bits(pmu->regmap, pmu->info->req_offset,
pd_info->req_mask, idle ? -1U : 0);

--
1.9.1