Add changes to invoke rpmh flush when the data in cache is dirty.
This is done only if OSI is not supported in PSCI. If OSI is supported
rpmh_flush will get invoked by power domain off call when the last cpu
in the domain is going to power collapse.
Signed-off-by: Maulik Shah <mkshah@xxxxxxxxxxxxxx>
---
drivers/soc/qcom/rpmh.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/soc/qcom/rpmh.c b/drivers/soc/qcom/rpmh.c
index 83ba4e0..839af8d 100644
--- a/drivers/soc/qcom/rpmh.c
+++ b/drivers/soc/qcom/rpmh.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/psci.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/types.h>
@@ -163,6 +164,9 @@ static struct cache_req *cache_rpm_request(struct rpmh_ctrlr *ctrlr,
unlock:
spin_unlock_irqrestore(&ctrlr->cache_lock, flags);
+ if (ctrlr->dirty && !psci_has_osi_support())
+ return rpmh_flush(ctrlr) ? ERR_PTR(-EINVAL) : req;
+
return req;
}
@@ -391,6 +395,8 @@ int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
if (state != RPMH_ACTIVE_ONLY_STATE) {
cache_batch(ctrlr, req);
+ if (!psci_has_osi_support())
+ return rpmh_flush(ctrlr);
return 0;
}
--
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