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Message-ID: <20250118124044.157308-1-dario.binacchi@amarulasolutions.com>
Date: Sat, 18 Jan 2025 13:39:43 +0100
From: Dario Binacchi <dario.binacchi@...rulasolutions.com>
To: linux-kernel@...r.kernel.org
Cc: linux-amarula@...rulasolutions.com,
Dario Binacchi <dario.binacchi@...rulasolutions.com>,
Abel Vesa <abelvesa@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Dan Carpenter <dan.carpenter@...aro.org>,
Fabio Estevam <festevam@...il.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Michael Turquette <mturquette@...libre.com>,
Peng Fan <peng.fan@....com>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Rob Herring <robh@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Shawn Guo <shawnguo@...nel.org>,
Stephen Boyd <sboyd@...nel.org>,
devicetree@...r.kernel.org,
imx@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org,
linux-clk@...r.kernel.org
Subject: [PATCH v9 00/23] Support spread spectrum clocking for i.MX8M PLLs
The series adds support for spread spectrum clocking for i.MX8M{M,N,P}
PLLs (audio, video and DRAM). It has been tested for the video PLL on
boards using i.MX8MN and i.MX8MP.
Changes in v9:
- Add 'Reviewed-by' tag of Peng Fan for imx8mn platform patches
- Fix building warning raised by the kernel test robot for patch
v8, 11/18 clk: imx: add support for i.MX8MN anatop clock driver
- Add patches for imx8m{m,p} platforms:
- 23/23 clk: imx8mm: support spread spectrum clock generation
- 22/23 clk: imx: add support for i.MX8MM anatop clock driver
- 21/23 clk: imx8mp: support spread spectrum clock generation
- 20/23 clk: imx8mp: rename ccm_base to base
- 19/23 clk: imx: add support for i.MX8MP anatop clock driver
Changes in v8:
- Drop the patches added in version 7:
- 10/23 dt-bindings: clock: imx8m-clock: add phandle to the anatop
- 11/23 arm64: dts: imx8mm: add phandle to anatop within CCM
- 12/23 arm64: dts: imx8mn: add phandle to anatop within CCM
- 13/23 arm64: dts: imx8mp: add phandle to anatop within CCM
- 14/23 arm64: dts: imx8mq: add phandle to anatop within CCM
Changes in v7:
- Add and manage fsl,anatop property as phandle to the anatop node with
the new patches:
- 10/23 dt-bindings: clock: imx8m-clock: add phandle to the anatop
- 11/23 arm64: dts: imx8mm: add phandle to anatop within CCM
- 12/23 arm64: dts: imx8mn: add phandle to anatop within CCM
- 13/23 arm64: dts: imx8mp: add phandle to anatop within CCM
- 14/23 arm64: dts: imx8mq: add phandle to anatop within CCM
Changes in v6:
- Merge patches:
10/20 dt-bindings: clock: imx8mm: add binding definitions for anatop
11/20 dt-bindings: clock: imx8mn: add binding definitions for anatop
12/20 dt-bindings: clock: imx8mp: add binding definitions for anatop
to
05/20 dt-bindings: clock: imx8m-anatop: define clocks/clock-names
now renamed
05/18 dt-bindings: clock: imx8m-anatop: add oscillators and PLLs
- Split the patch
15/20 dt-bindings-clock-imx8m-clock-support-spread-spectru.patch
into
12/18 dt-bindings: clock: imx8m-clock: add PLLs
16/18 dt-bindings: clock: imx8m-clock: support spread spectrum clocking
Changes in v5:
- Fix compilation errors.
- Separate driver code from dt-bindings
Changes in v4:
- Add dt-bindings for anatop
- Add anatop driver
- Drop fsl,ssc-clocks from spread spectrum dt-bindings
Changes in v3:
- Patches 1/8 has been added in version 3. The dt-bindings have
been moved from fsl,imx8m-anatop.yaml to imx8m-clock.yaml. The
anatop device (fsl,imx8m-anatop.yaml) is indeed more or less a
syscon, so it represents a memory area accessible by ccm
(imx8m-clock.yaml) to setup the PLLs.
- Patches {3,5}/8 have been added in version 3.
- Patches {4,6,8}/8 use ccm device node instead of the anatop one.
Changes in v2:
- Add "allOf:" and place it after "required:" block, like in the
example schema.
- Move the properties definition to the top-level.
- Drop unit types as requested by the "make dt_binding_check" command.
Dario Binacchi (23):
dt-bindings: clock: imx8mm: add VIDEO_PLL clocks
clk: imx8mm: rename video_pll1 to video_pll
dt-bindings: clock: imx8mp: add VIDEO_PLL clocks
clk: imx8mp: rename video_pll1 to video_pll
dt-bindings: clock: imx8m-anatop: add oscillators and PLLs
arm64: dts: imx8mm: add anatop clocks
arm64: dts: imx8mn: add anatop clocks
arm64: dts: imx8mp: add anatop clocks
arm64: dts: imx8mq: add anatop clocks
clk: imx: add hw API imx_anatop_get_clk_hw
clk: imx: add support for i.MX8MN anatop clock driver
dt-bindings: clock: imx8m-clock: add PLLs
arm64: dts: imx8mm: add PLLs to clock controller module (CCM)
arm64: dts: imx8mn: add PLLs to clock controller module (CCM)
arm64: dts: imx8mp: add PLLs to clock controller module (CCM)
dt-bindings: clock: imx8m-clock: support spread spectrum clocking
clk: imx: pll14xx: support spread spectrum clock generation
clk: imx8mn: support spread spectrum clock generation
clk: imx: add support for i.MX8MP anatop clock driver
clk: imx8mp: rename ccm_base to base
clk: imx8mp: support spread spectrum clock generation
clk: imx: add support for i.MX8MM anatop clock driver
clk: imx8mm: support spread spectrum clock generation
.../bindings/clock/fsl,imx8m-anatop.yaml | 53 +-
.../bindings/clock/imx8m-clock.yaml | 74 +-
arch/arm64/boot/dts/freescale/imx8mm.dtsi | 11 +-
arch/arm64/boot/dts/freescale/imx8mn.dtsi | 11 +-
arch/arm64/boot/dts/freescale/imx8mp.dtsi | 11 +-
arch/arm64/boot/dts/freescale/imx8mq.dtsi | 2 +
drivers/clk/imx/Makefile | 6 +-
drivers/clk/imx/clk-imx8mm-anatop.c | 287 ++++++++
drivers/clk/imx/clk-imx8mm.c | 275 ++++---
drivers/clk/imx/clk-imx8mn-anatop.c | 283 ++++++++
drivers/clk/imx/clk-imx8mn.c | 196 +++--
drivers/clk/imx/clk-imx8mp-anatop.c | 305 ++++++++
drivers/clk/imx/clk-imx8mp.c | 684 +++++++++---------
drivers/clk/imx/clk-pll14xx.c | 134 ++++
drivers/clk/imx/clk.c | 15 +
drivers/clk/imx/clk.h | 18 +
include/dt-bindings/clock/imx8mm-clock.h | 76 +-
include/dt-bindings/clock/imx8mn-clock.h | 64 ++
include/dt-bindings/clock/imx8mp-clock.h | 80 +-
19 files changed, 1975 insertions(+), 610 deletions(-)
create mode 100644 drivers/clk/imx/clk-imx8mm-anatop.c
create mode 100644 drivers/clk/imx/clk-imx8mn-anatop.c
create mode 100644 drivers/clk/imx/clk-imx8mp-anatop.c
--
2.43.0
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