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authorAndreas Färber <afaerber@suse.de>2017-06-05 21:04:21 +0200
committerAndreas Färber <afaerber@suse.de>2017-06-23 17:43:27 +0200
commit6932ec60cc0a71689150b16b71427cfdc6575602 (patch)
tree27942772c2ef4d35444d6c4ef7c48e36663d9855 /drivers/soc/actions/owl-sps.c
parentaa9f800ded78d530bb07104a4745e95af723abf6 (diff)
soc: actions: owl-sps: Factor out owl_sps_set_pg() for power-gating
Allow the SMP code to reuse PM domain code for CPU2/CPU3 wakeup. Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'drivers/soc/actions/owl-sps.c')
-rw-r--r--drivers/soc/actions/owl-sps.c34
1 files changed, 3 insertions, 31 deletions
diff --git a/drivers/soc/actions/owl-sps.c b/drivers/soc/actions/owl-sps.c
index 8abb72f01929..875225bfa21c 100644
--- a/drivers/soc/actions/owl-sps.c
+++ b/drivers/soc/actions/owl-sps.c
@@ -12,15 +12,12 @@
* option) any later version.
*/
-#include <linux/delay.h>
-#include <linux/io.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/pm_domain.h>
+#include <linux/soc/actions/owl-sps.h>
#include <dt-bindings/power/owl-s500-powergate.h>
-#define OWL_SPS_PG_CTL 0x0
-
struct owl_sps_domain_info {
const char *name;
int pwr_bit;
@@ -51,37 +48,12 @@ struct owl_sps_domain {
static int owl_sps_set_power(struct owl_sps_domain *pd, bool enable)
{
- u32 val, pwr_mask, ack_mask;
- int timeout;
- bool ack;
+ u32 pwr_mask, ack_mask;
ack_mask = BIT(pd->info->ack_bit);
pwr_mask = BIT(pd->info->pwr_bit);
- val = readl(pd->sps->base + OWL_SPS_PG_CTL);
- ack = val & ack_mask;
-
- if (ack == enable)
- return 0;
-
- if (enable)
- val |= pwr_mask;
- else
- val &= ~pwr_mask;
-
- writel(val, pd->sps->base + OWL_SPS_PG_CTL);
- for (timeout = 5000; timeout > 0; timeout -= 50) {
- val = readl(pd->sps->base + OWL_SPS_PG_CTL);
- if ((val & ack_mask) == (enable ? ack_mask : 0))
- break;
- udelay(50);
- }
- if (timeout <= 0)
- return -ETIMEDOUT;
-
- udelay(10);
-
- return 0;
+ return owl_sps_set_pg(pd->sps->base, pwr_mask, ack_mask, enable);
}
static int owl_sps_power_on(struct generic_pm_domain *domain)