From: Alex Elder <elder@riscstar.com>
To: sboyd@kernel.org, bmasney+clk@redhat.com,
jbrunet+clk@baylibre.com, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, lee@kernel.org, andersson@kernel.org,
konradybcio@kernel.org, abelvesa@kernel.org, kees@kernel.org,
gustavoars@kernel.org, p.zabel@pengutronix.de
Cc: daniel@riscstar.com, mohd.anwar@oss.qualcomm.com,
lorenzo.bianconi@oss.qualcomm.com, linux-clk@vger.kernel.org,
devicetree@vger.kernel.org, mfd@lists.linux.dev,
linux-arm-msm@vger.kernel.org, linux-hardening@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/4] clk: introduce TC9564 clock and reset
Date: Fri, 18 Sep 2026 11:52:29 -0500 [thread overview]
Message-ID: <20260918165234.687224-1-elder@riscstar.com> (raw)
This series adds support for the clock and reset controller present
within the TC9564 SoC.
This SoC attaches to a host system via PCIe. It includes a PCIe
switch with three downstream ports. To one of these ports an
embedded PCIe endpoint is attached, and it implements two PCI
functions. BAR 4 for both of these PCI functions provides access
to the registers that enable or disable a number of clock signals,
and assert or deassert a set of reset lines.
The TC9564 PCI functions provide PCI endpoint buses via devicetree.
This allows a PCI function to use devicetree to define subordinate
devices accessible using one or more of the function's BARs. The
clock/reset driver binds with a device defined this way. Only one
of the two PCI functions is permitted to define the clock/reset
device node.
-Alex
Note: to work correctly, this series depends on this:
https://lore.kernel.org/lkml/20260918152659.413268-1-elder@riscstar.com/
Alex Elder (4):
dt-bindings: mfd: introduce the TC9564 config syscon
dt-bindings: clock: introduce toshiba,tc9564-clock.yaml
clk: toshiba: introduce a TC9564 SoC clock and reset driver
arm64: dts: qcom: qcs6490-rb3gen2: add the clock controller
.../bindings/clock/toshiba,tc9564-clock.yaml | 64 +++
.../bindings/mfd/toshiba,tc9564.yaml | 56 +++
MAINTAINERS | 9 +
arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 22 +-
drivers/clk/Kconfig | 11 +
drivers/clk/Makefile | 1 +
drivers/clk/clk-tc9564.c | 366 ++++++++++++++++++
include/dt-bindings/clock/toshiba,tc9564.h | 54 +++
8 files changed, 582 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/clock/toshiba,tc9564-clock.yaml
create mode 100644 Documentation/devicetree/bindings/mfd/toshiba,tc9564.yaml
create mode 100644 drivers/clk/clk-tc9564.c
create mode 100644 include/dt-bindings/clock/toshiba,tc9564.h
base-commit: 79d34e34e9ab629be19e588ec2eb7e1855d6dc46
--
2.53.0
next reply other threads:[~2026-09-18 16:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-18 16:52 Alex Elder [this message]
2026-09-18 16:52 ` [PATCH 1/4] dt-bindings: mfd: introduce the TC9564 config syscon Alex Elder
2026-09-18 16:52 ` [PATCH 2/4] dt-bindings: clock: introduce toshiba,tc9564-clock.yaml Alex Elder
2026-09-18 16:52 ` [PATCH 3/4] clk: toshiba: introduce a TC9564 SoC clock and reset driver Alex Elder
2026-09-18 16:52 ` [PATCH 4/4] arm64: dts: qcom: qcs6490-rb3gen2: add the clock controller Alex Elder
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