linux-kernel - [PATCH 0/3] clk: qcom: smd-rpm: Report enable state to framework

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Date:   Tue,  9 Nov 2021 10:25:55 +0800
From:   Shawn Guo <shawn.guo@...aro.org>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Loic Poulain <loic.poulain@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, Shawn Guo <shawn.guo@...aro.org>
Subject: [PATCH 0/3] clk: qcom: smd-rpm: Report enable state to framework

Currently the enable state of smd-rpm clocks are not properly reported
back to framework due to missing .is_enabled and .is_prepared hooks.
This causes a couple of issues.

- All those unused clocks are not voted for off, because framework has
  no knowledge that they are unused.  It becomes a problem for vlow
  power mode support, as we do not have every single RPM clock claimed
  and voted for off by client devices, and rely on clock framework to
  disable those unused RPM clocks.

- The clk_summary in debugfs doesn't show a correct enable state for
  RPM clocks.


Shawn Guo (3):
  clk: qcom: smd-rpm: Mark clock enabled in clk_smd_rpm_handoff()
  clk: qcom: smd-rpm: Add .is_enabled hook
  clk: qcom: smd-rpm: Add .is_prepared hook

 drivers/clk/qcom/clk-smd-rpm.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

-- 
2.17.1