From: Brian Masney <bmasney@redhat.com>
To: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>
Cc: linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
Brian Masney <bmasney@redhat.com>,
Abel Vesa <abelvesa@kernel.org>,
Andrea della Porta <andrea.porta@suse.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
Bjorn Andersson <andersson@kernel.org>,
Chanwoo Choi <cw00.choi@samsung.com>,
Frank Li <Frank.Li@nxp.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Krzysztof Kozlowski <krzk@kernel.org>,
Orson Zhai <orsonzhai@gmail.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Sudeep Holla <sudeep.holla@kernel.org>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Tudor Ambarus <tudor.ambarus@linaro.org>,
Alim Akhtar <alim.akhtar@samsung.com>,
arm-scmi@vger.kernel.org, Chunyan Zhang <zhang.lyra@gmail.com>,
Cristian Marussi <cristian.marussi@arm.com>,
Fabio Estevam <festevam@gmail.com>,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org,
linux-renesas-soc@vger.kernel.org,
linux-samsung-soc@vger.kernel.org, Peng Fan <peng.fan@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>
Subject: [PATCH 00/13] clk: add new flag CLK_ROUNDING_FW_MANAGED
Date: Thu, 26 Feb 2026 13:16:44 -0500 [thread overview]
Message-ID: <20260226-clk-det-rate-fw-managed-v1-0-4421dd2f6dc6@redhat.com> (raw)
There are some clocks where the rounding is managed by the hardware, and
the determine_rate() clk ops is just a noop that simply returns 0. Based
on discussions with Stephen at Linux Plumbers Conference, he suggested
adding a flag for this particular case. So let's add a new flag, and
update the clk core so that the determine_rate() clk op is not required
when this flag is set.
This series adds the flag, some kunit tests, and updates all of the
relevant drivers under drivers/clk to use the new flag.
Once this is merged, and in Linus's tree, I can update the few remaining
clk drivers that are outside of drivers/clk via those subsystems at a
later time.
Merge Strategy
--------------
All of this needs to be directly merged by Stephen as one series into
his tree. Subsystem maintainers: please leave a Reviewed-by or Acked-by.
To reduce the noise, I am only CCing people on their respective drivers.
Note this series depends on 3 previously-posted patches in this git pull
to Stephen for v7.1.
https://lore.kernel.org/linux-clk/aZuK4-QJCXUeSxtL@redhat.com/
Hopefully I set the depeendencies up correctly in b4.
Signed-off-by: Brian Masney <bmasney@redhat.com>
---
Brian Masney (13):
clk: add new flag CLK_ROUNDING_FW_MANAGED
clk: test: add test suite for CLK_ROUNDING_FW_MANAGED flag
clk: rp1: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: scpi: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: hisilicon: hi3660-stub: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: imx: scu: drop redundant init.ops variable assignment
clk: imx: scu: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: qcom: rpm: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: qcom: rpmh: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: qcom: smd-rpm: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: renesas: rzg2l-cpg: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: samsung: acpm: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
clk: sprd: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag
drivers/clk/clk-rp1.c | 11 +----
drivers/clk/clk-scpi.c | 14 +-----
drivers/clk/clk.c | 24 ++++++++--
drivers/clk/clk_test.c | 85 +++++++++++++++++++++++++++++++++
drivers/clk/hisilicon/clk-hi3660-stub.c | 14 +-----
drivers/clk/imx/clk-scu.c | 23 +--------
drivers/clk/qcom/clk-rpm.c | 16 ++-----
drivers/clk/qcom/clk-rpmh.c | 8 +---
drivers/clk/qcom/clk-smd-rpm.c | 15 +-----
drivers/clk/renesas/rzg2l-cpg.c | 9 +---
drivers/clk/samsung/clk-acpm.c | 14 +-----
drivers/clk/sprd/pll.c | 7 ---
drivers/clk/sprd/pll.h | 2 +-
include/linux/clk-provider.h | 2 +
14 files changed, 123 insertions(+), 121 deletions(-)
---
base-commit: 7d6661873f6b54c75195780a40d66bad3d482d8f
change-id: 20260226-clk-det-rate-fw-managed-4b8d061f31be
prerequisite-patch-id: 59198edc95aca82a29327137ad2af82ec13295b6
prerequisite-patch-id: 8932e170649711d7a80c57784033a37faadd519b
prerequisite-patch-id: 91c7b1851c5d77e504c49ce6bf14b3f8b84e826a
Best regards,
--
Brian Masney <bmasney@redhat.com>
next reply other threads:[~2026-02-26 18:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-26 18:16 Brian Masney [this message]
2026-02-26 18:16 ` [PATCH 01/13] clk: add new flag CLK_ROUNDING_FW_MANAGED Brian Masney
2026-02-27 8:16 ` Geert Uytterhoeven
2026-02-27 8:57 ` Biju Das
2026-02-27 12:00 ` Biju Das
2026-02-27 14:44 ` Brian Masney
2026-02-27 16:38 ` Brian Masney
2026-03-02 11:27 ` Sudeep Holla
2026-02-26 18:16 ` [PATCH 12/13] clk: samsung: acpm: drop determine_rate op and use CLK_ROUNDING_FW_MANAGED flag Brian Masney
2026-02-28 13:31 ` Krzysztof Kozlowski
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