From mboxrd@z Thu Jan 1 00:00:00 1970 From: Raju P L S S S N Subject: [PATCH v2 2/6] drivers: qcom: rpmh: export controller idle status Date: Fri, 27 Jul 2018 15:34:45 +0530 Message-ID: <1532685889-31345-3-git-send-email-rplsssn@codeaurora.org> References: <1532685889-31345-1-git-send-email-rplsssn@codeaurora.org> Return-path: In-Reply-To: <1532685889-31345-1-git-send-email-rplsssn@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: andy.gross@linaro.org, david.brown@linaro.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org Cc: rnayak@codeaurora.org, bjorn.andersson@linaro.org, linux-kernel@vger.kernel.org, sboyd@kernel.org, evgreen@chromium.org, dianders@chromium.org, mka@chromium.org, ilina@codeaurora.org, "Raju P.L.S.S.S.N" List-Id: linux-arm-msm@vger.kernel.org From: Lina Iyer Allow the controller state be read by platform drivers. This is useful for PM drivers which can choose to disallow idle modes when the controller is busy. Signed-off-by: Lina Iyer Signed-off-by: Raju P.L.S.S.S.N --- drivers/soc/qcom/rpmh.c | 13 +++++++++++++ include/soc/qcom/rpmh.h | 5 +++++ 2 files changed, 18 insertions(+) diff --git a/drivers/soc/qcom/rpmh.c b/drivers/soc/qcom/rpmh.c index c7beb68..2382276 100644 --- a/drivers/soc/qcom/rpmh.c +++ b/drivers/soc/qcom/rpmh.c @@ -511,3 +511,16 @@ int rpmh_invalidate(const struct device *dev) return ret; } EXPORT_SYMBOL(rpmh_invalidate); + +/** + * rpmh_ctrlr_idle: Return the controller idle status + * + * @dev: the device making the request + */ +int rpmh_ctrlr_idle(const struct device *dev) +{ + struct rpmh_ctrlr *ctrlr = get_rpmh_ctrlr(dev); + + return rpmh_rsc_ctrlr_is_idle(ctrlr_to_drv(ctrlr)); +} +EXPORT_SYMBOL(rpmh_ctrlr_idle); diff --git a/include/soc/qcom/rpmh.h b/include/soc/qcom/rpmh.h index 619e07c..d445322 100644 --- a/include/soc/qcom/rpmh.h +++ b/include/soc/qcom/rpmh.h @@ -24,6 +24,8 @@ int rpmh_write_batch(const struct device *dev, enum rpmh_state state, int rpmh_invalidate(const struct device *dev); +int rpmh_ctrlr_idle(const struct device *dev); + #else static inline int rpmh_write(const struct device *dev, enum rpmh_state state, @@ -46,6 +48,9 @@ static inline int rpmh_flush(const struct device *dev) static inline int rpmh_invalidate(const struct device *dev) { return -ENODEV; } +static inline int rpmh_ctrlr_idle(const struct device *dev) +{ return -ENODEV; } + #endif /* CONFIG_QCOM_RPMH */ #endif /* __SOC_QCOM_RPMH_H__ */ -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project