Messages in this thread Patch in this message | | | From | Raju P L S S S N <> | Subject | [PATCH v2 1/6] drivers: qcom: rpmh-rsc: return if the controller is idle | Date | Fri, 27 Jul 2018 15:34:44 +0530 |
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From: Lina Iyer <ilina@codeaurora.org>
Allow the controller status be queried. The controller is busy if it is actively processing request.
Signed-off-by: Lina Iyer <ilina@codeaurora.org> Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org> --- Changes in v2: - Remove unnecessary EXPORT_SYMBOL --- drivers/soc/qcom/rpmh-internal.h | 1 + drivers/soc/qcom/rpmh-rsc.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+)
diff --git a/drivers/soc/qcom/rpmh-internal.h b/drivers/soc/qcom/rpmh-internal.h index a7bbbb6..4ff43bf 100644 --- a/drivers/soc/qcom/rpmh-internal.h +++ b/drivers/soc/qcom/rpmh-internal.h @@ -108,6 +108,7 @@ struct rsc_drv { int rpmh_rsc_write_ctrl_data(struct rsc_drv *drv, const struct tcs_request *msg); int rpmh_rsc_invalidate(struct rsc_drv *drv); +bool rpmh_rsc_ctrlr_is_idle(struct rsc_drv *drv); void rpmh_tx_done(const struct tcs_request *msg, int r); diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c index 33fe9f9..42d0041 100644 --- a/drivers/soc/qcom/rpmh-rsc.c +++ b/drivers/soc/qcom/rpmh-rsc.c @@ -496,6 +496,26 @@ static int tcs_ctrl_write(struct rsc_drv *drv, const struct tcs_request *msg) } /** + * rpmh_rsc_ctrlr_is_idle: Check if any of the AMCs are busy. + * + * @drv: The controller + * + * Returns true if the TCSes are engaged in handling requests. + */ +bool rpmh_rsc_ctrlr_is_idle(struct rsc_drv *drv) +{ + int m; + struct tcs_group *tcs = get_tcs_of_type(drv, ACTIVE_TCS); + + for (m = tcs->offset; m < tcs->offset + tcs->num_tcs; m++) { + if (!tcs_is_free(drv, m)) + return false; + } + + return true; +} + +/** * rpmh_rsc_write_ctrl_data: Write request to the controller * * @drv: the controller -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project
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