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* [PATCH V4 00/11] clk: imx8: add new clock binding for better pm support
@ 2019-08-20 11:13 Dong Aisheng
  2019-08-20 11:13 ` [PATCH V4 01/11] dt-bindings: firmware: imx-scu: new binding to parse clocks from device tree Dong Aisheng
                   ` (11 more replies)
  0 siblings, 12 replies; 34+ messages in thread
From: Dong Aisheng @ 2019-08-20 11:13 UTC (permalink / raw)
  To: linux-clk
  Cc: linux-arm-kernel, sboyd, mturquette, shawnguo, fabio.estevam,
	linux-imx, kernel, Dong Aisheng

This is a follow up of this patch series.
https://patchwork.kernel.org/cover/10924029/
[V2,0/2] clk: imx: scu: add parsing clocks from device tree support

This patch series is a preparation for the MX8 Architecture improvement.
As for IMX SCU based platforms like MX8QM and MX8QXP, they are comprised
of a couple of SS(Subsystems) while most of them within the same SS
can be shared. e.g. Clocks, Devices and etc.

However, current clock binding is using SW IDs for device tree to use
which can cause troubles in writing the common <soc>-ss-xx.dtsi file for
different SoCs.

This patch series aims to introduce a new binding which is more close to
hardware and platform independent and can makes us write a more general
drivers for different SCU based SoCs.

Another important thing is that on MX8, each Clock resource is associated
with a power domain. So we have to attach that clock device to the power
domain in order to make it work properly. Further more, the clock state
will be lost when its power domain is completely off during suspend/resume,
so we also introduce the clock state save&restore mechanism.

ChangeLog:
v2->v3:
 * change scu clk into two cells binding
 * add clk pm patches to ease the understand of the changes
v1->v2:
 * SCU clock changed to one cell clock binding inspired by arm,scpi.txt
   Documentation/devicetree/bindings/arm/arm,scpi.txt
 * Add required power domain property
 * Dropped PATCH 3&4 first, will send the updated version accordingly
   after the binding is finally determined,

Dong Aisheng (11):
  dt-bindings: firmware: imx-scu: new binding to parse clocks from
    device tree
  dt-bindings: clock: imx-lpcg: add support to parse clocks from device
    tree
  clk: imx: scu: add two cells binding support
  clk: imx: scu: bypass cpu power domains
  clk: imx: scu: allow scu clk to take device pointer
  clk: imx: scu: add runtime pm support
  clk: imx: scu: add suspend/resume support
  clk: imx: imx8qxp-lpcg: add parsing clocks from device tree
  clk: imx: lpcg: allow lpcg clk to take device pointer
  clk: imx: clk-imx8qxp-lpcg: add runtime pm support
  clk: imx: lpcg: add suspend/resume support

 .../devicetree/bindings/arm/freescale/fsl,scu.txt  |  12 +-
 .../devicetree/bindings/clock/imx8qxp-lpcg.txt     |  36 +++-
 drivers/clk/imx/clk-imx8qxp-lpcg.c                 | 124 ++++++++++++
 drivers/clk/imx/clk-imx8qxp.c                      |   9 +-
 drivers/clk/imx/clk-lpcg-scu.c                     |  41 +++-
 drivers/clk/imx/clk-scu.c                          | 216 ++++++++++++++++++++-
 drivers/clk/imx/clk-scu.h                          |  50 ++++-
 include/dt-bindings/clock/imx8-lpcg.h              |  14 ++
 include/dt-bindings/firmware/imx/rsrc.h            |  23 +++
 9 files changed, 495 insertions(+), 30 deletions(-)
 create mode 100644 include/dt-bindings/clock/imx8-lpcg.h

-- 
2.7.4


^ permalink raw reply	[flat|nested] 34+ messages in thread

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Thread overview: 34+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-08-20 11:13 [PATCH V4 00/11] clk: imx8: add new clock binding for better pm support Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 01/11] dt-bindings: firmware: imx-scu: new binding to parse clocks from device tree Dong Aisheng
2019-08-24 19:19   ` Shawn Guo
2019-08-26  3:24     ` Aisheng Dong
2019-08-27 17:04   ` Rob Herring
2019-09-06 16:56   ` Stephen Boyd
2019-08-20 11:13 ` [PATCH V4 02/11] dt-bindings: clock: imx-lpcg: add support " Dong Aisheng
2019-08-24 19:21   ` Shawn Guo
2019-08-26  3:14     ` Aisheng Dong
2019-08-26  3:21     ` Aisheng Dong
2019-08-27 17:05   ` Rob Herring
2019-09-06 17:00   ` Stephen Boyd
2019-08-20 11:13 ` [PATCH V4 03/11] clk: imx: scu: add two cells binding support Dong Aisheng
2019-09-06 17:06   ` Stephen Boyd
2019-09-09 10:23     ` Dong Aisheng
2019-09-16 18:44       ` Stephen Boyd
2019-08-20 11:13 ` [PATCH V4 04/11] clk: imx: scu: bypass cpu power domains Dong Aisheng
2019-09-06 17:07   ` Stephen Boyd
2019-09-09 10:24     ` Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 05/11] clk: imx: scu: allow scu clk to take device pointer Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 06/11] clk: imx: scu: add runtime pm support Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 07/11] clk: imx: scu: add suspend/resume support Dong Aisheng
2019-09-06 17:09   ` Stephen Boyd
2019-09-09 10:35     ` Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 08/11] clk: imx: imx8qxp-lpcg: add parsing clocks from device tree Dong Aisheng
2019-09-06 17:13   ` Stephen Boyd
2019-09-09 11:23     ` Dong Aisheng
2019-09-16 18:45       ` Stephen Boyd
2019-08-20 11:13 ` [PATCH V4 09/11] clk: imx: lpcg: allow lpcg clk to take device pointer Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 10/11] clk: imx: clk-imx8qxp-lpcg: add runtime pm support Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 11/11] clk: imx: lpcg: add suspend/resume support Dong Aisheng
2019-09-06 17:14   ` Stephen Boyd
2019-09-09 11:39     ` Dong Aisheng
2019-09-09 12:21 ` [PATCH V4 00/11] clk: imx8: add new clock binding for better pm support Oliver Graute

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