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authorLina Iyer <ilina@codeaurora.org>2018-06-20 18:57:06 +0530
committerAndy Gross <andy.gross@linaro.org>2018-07-21 13:33:36 -0500
commitc8790cb6da58d3fa09dfa707aa486fe6769c23bc (patch)
tree4d0f9977301a4fd5964f07a589c2dc2e1f067f93 /include/soc
parent564b5e24ccd4c840a7f84dfd952e5715dd9b3966 (diff)
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drivers: qcom: rpmh: add support for batch RPMH request
Platform drivers need make a lot of resource state requests at the same time, say, at the start or end of an usecase. It can be quite inefficient to send each request separately. Instead they can give the RPMH library a batch of requests to be sent and wait on the whole transaction to be complete. rpmh_write_batch() is a blocking call that can be used to send multiple RPMH command sets. Each RPMH command set is set asynchronously and the API blocks until all the command sets are complete and receive their tx_done callbacks. Signed-off-by: Lina Iyer <ilina@codeaurora.org> Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'include/soc')
-rw-r--r--include/soc/qcom/rpmh.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/soc/qcom/rpmh.h b/include/soc/qcom/rpmh.h
index 1161a5c77e75..619e07c75da9 100644
--- a/include/soc/qcom/rpmh.h
+++ b/include/soc/qcom/rpmh.h
@@ -17,6 +17,9 @@ int rpmh_write(const struct device *dev, enum rpmh_state state,
int rpmh_write_async(const struct device *dev, enum rpmh_state state,
const struct tcs_cmd *cmd, u32 n);
+int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
+ const struct tcs_cmd *cmd, u32 *n);
+
int rpmh_flush(const struct device *dev);
int rpmh_invalidate(const struct device *dev);
@@ -32,6 +35,11 @@ static inline int rpmh_write_async(const struct device *dev,
const struct tcs_cmd *cmd, u32 n)
{ return -ENODEV; }
+static inline int rpmh_write_batch(const struct device *dev,
+ enum rpmh_state state,
+ const struct tcs_cmd *cmd, u32 *n)
+{ return -ENODEV; }
+
static inline int rpmh_flush(const struct device *dev)
{ return -ENODEV; }