Messages in this thread Patch in this message | | | From | Douglas Anderson <> | Subject | [RFT PATCH v2 07/10] drivers: qcom: rpmh-rsc: Warning if tcs_write() used for non-active | Date | Wed, 11 Mar 2020 16:13:45 -0700 |
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tcs_write() is documented to only be useful for writing RPMH_ACTIVE_ONLY_STATE. Let's be loud if someone messes up.
Signed-off-by: Douglas Anderson <dianders@chromium.org> ---
Changes in v2: None
drivers/soc/qcom/rpmh-rsc.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c index 93f5d1fb71ca..ba489d18c20e 100644 --- a/drivers/soc/qcom/rpmh-rsc.c +++ b/drivers/soc/qcom/rpmh-rsc.c @@ -573,6 +573,12 @@ static int tcs_write(struct rsc_drv *drv, const struct tcs_request *msg) unsigned long flags; int ret; + /* + * It only makes sense to grab a whole TCS for ourselves if we're + * triggering right away, which we only do for ACTIVE_ONLY. + */ + WARN_ON(msg->state != RPMH_ACTIVE_ONLY_STATE); + /* TODO: get_tcs_for_msg() can return -EAGAIN and nobody handles */ tcs = get_tcs_for_msg(drv, msg); if (IS_ERR(tcs)) -- 2.25.1.481.gfbce0eb801-goog
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