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From: Michael Walle <michael@walle.cc>
To: linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>, Li Yang <leoyang.li@nxp.com>,
	Michael Walle <michael@walle.cc>
Subject: [PATCH v2 0/5] clk: add fsl-flexspi driver
Date: Thu,  5 Nov 2020 20:35:07 +0100	[thread overview]
Message-ID: <20201105193512.22388-1-michael@walle.cc> (raw)

On Layerscape SoCs which feature the FlexSPI controller there is
a single register which can control the divider value. The base
frequency is the platform PLL.

Right now the LS1028A and the LX2160A aren't able to switch the
SCK frequency on the FlexSPI interface. Add a new clock driver
which operate on said register.

Michael Walle (5):
  clk: divider: add devm_clk_hw_register_divider_table()
  dt-bindings: clock: document the fsl-flexspi-clk driver
  clk: fsl-flexspi: new driver
  arm64: dts: ls1028a: fix FlexSPI clock
  arm64: dts: lx2160a: fix FlexSPI clock

 .../bindings/clock/fsl,flexspi-clock.yaml     |  55 +++++++++
 .../arm64/boot/dts/freescale/fsl-ls1028a.dtsi |  15 ++-
 .../arm64/boot/dts/freescale/fsl-lx2160a.dtsi |  15 ++-
 drivers/clk/Kconfig                           |   8 ++
 drivers/clk/Makefile                          |   1 +
 drivers/clk/clk-divider.c                     |  34 ++++++
 drivers/clk/clk-fsl-flexspi.c                 | 106 ++++++++++++++++++
 include/linux/clk-provider.h                  |  27 +++++
 8 files changed, 257 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/fsl,flexspi-clock.yaml
 create mode 100644 drivers/clk/clk-fsl-flexspi.c

-- 
2.20.1


             reply	other threads:[~2020-11-05 19:35 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-05 19:35 Michael Walle [this message]
2020-11-05 19:35 ` [PATCH v2 1/5] clk: divider: add devm_clk_hw_register_divider_table() Michael Walle
2020-11-05 19:35 ` [PATCH v2 2/5] dt-bindings: clock: document the fsl-flexspi-clk driver Michael Walle
2020-11-05 19:35 ` [PATCH v2 3/5] clk: fsl-flexspi: new driver Michael Walle
2020-11-05 19:35 ` [PATCH v2 4/5] arm64: dts: ls1028a: fix FlexSPI clock Michael Walle
2020-11-05 19:35 ` [PATCH v2 5/5] arm64: dts: lx2160a: " Michael Walle
2020-11-06  2:00   ` Leo Li
2020-11-06  8:11     ` Michael Walle
2020-11-06 14:04       ` Michael Walle

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