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 <zhangq...@rock-chips.com>
Signed-off-by: Heiko Stuebner <he...@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


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