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authorLina Iyer <ilina@codeaurora.org>2018-06-20 16:27:04 +0300
committerAndy Gross <andy.gross@linaro.org>2018-07-21 21:33:12 +0300
commit600513dfeef33cb05c694d1b13d319b9e8cde536 (patch)
tree24b315e925e86066d7c95ad9aaedef334e55f790 /include/soc/qcom
parent9a3afcfbc0cc9af5e18ff53bb0d41a30e0d3d896 (diff)
downloadlinux-600513dfeef33cb05c694d1b13d319b9e8cde536.tar.xz
drivers: qcom: rpmh: cache sleep/wake state requests
Active state requests are sent immediately to the RSC controller, while sleep and wake state requests are cached in this driver to avoid taxing the RSC controller repeatedly. The cached values will be sent to the controller when the rpmh_flush() is called. Generally, flushing is a system PM activity and may be called from the system PM drivers when the system is entering suspend or deeper sleep modes during cpuidle. Also allow invalidating the cached requests, so they may be re-populated again. Signed-off-by: Lina Iyer <ilina@codeaurora.org> [rplsssn: remove unneeded semicolon, address line over 80chars error] Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org> Reviewed-by: Evan Green <evgreen@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'include/soc/qcom')
-rw-r--r--include/soc/qcom/rpmh.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/soc/qcom/rpmh.h b/include/soc/qcom/rpmh.h
index c1d0f902bd71..42e62a0d26d8 100644
--- a/include/soc/qcom/rpmh.h
+++ b/include/soc/qcom/rpmh.h
@@ -14,12 +14,23 @@
int rpmh_write(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);
+
#else
static inline int rpmh_write(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; }
+
+static inline int rpmh_invalidate(const struct device *dev)
+{ return -ENODEV; }
+
#endif /* CONFIG_QCOM_RPMH */
#endif /* __SOC_QCOM_RPMH_H__ */