[RESEND,V4,0/9] clk: add imx7ulp clk support

Message

Aisheng Dong Oct. 21, 2018, 1:10 p.m. UTC

This is a rebased version of below patch series against latest clk tree.
[PATCH RESEND V3 0/9] clk: add imx7ulp clk support
https://lkml.org/lkml/2018/3/16/310

It only updates the license to SPDX format as well as a minor fix of
pllv4.

This patch series intends to add imx7ulp clk support.

i.MX7ULP Clock functions are under joint control of the System
Clock Generation (SCG) modules, Peripheral Clock Control (PCC)
modules, and Core Mode Controller (CMC)1 blocks

The clocking scheme provides clear separation between M4 domain
and A7 domain. Except for a few clock sources shared between two
domains, such as the System Oscillator clock, the Slow IRC (SIRC),
and and the Fast IRC clock (FIRCLK), clock sources and clock
management are separated and contained within each domain.

M4 clock management consists of SCG0, PCC0, PCC1, and CMC0 modules.
A7 clock management consists of SCG1, PCC2, PCC3, and CMC1 modules.

Note: this series only adds A7 clock domain support as M4 clock
domain will be handled by M4 seperately.

Change Log:
v3->v4:
 * update after changing scg and pcc into separete nodes according to
   Rob's suggestion
v2->v3:
 * Patch 1 changed on: 1) split normal and gate ops 2) fix the possible racy
   Others no changes.

v1->v2:
 * add enable/disable for the type of CLK_DIVIDER_ZERO_GATE dividers
 * use clk_hw apis to register clocks
 * use of_clk_add_hw_provider
 * split the clocks register process into two parts: early part for possible
   timers clocks registered by CLK_OF_DECLARE_DRIVER and the later part for
   the left normal peripheral clocks registered by a platform driver.

Dong Aisheng (9):
  clk: clk-divider: add CLK_DIVIDER_ZERO_GATE clk support
  clk: fractional-divider: add CLK_FRAC_DIVIDER_ZERO_BASED flag support
  clk: imx: add pllv4 support
  clk: imx: add pfdv2 support
  clk: imx: add composite clk support
  dt-bindings: clock: add imx7ulp clock binding doc
  clk: imx: make mux parent strings const
  clk: imx: implement new clk_hw based APIs
  clk: imx: add imx7ulp clk driver

 .../devicetree/bindings/clock/imx7ulp-clock.txt    |  87 +++++++++
 drivers/clk/clk-divider.c                          | 152 +++++++++++++++
 drivers/clk/clk-fractional-divider.c               |  10 +
 drivers/clk/imx/Makefile                           |   6 +-
 drivers/clk/imx/clk-busy.c                         |   2 +-
 drivers/clk/imx/clk-composite.c                    |  85 +++++++++
 drivers/clk/imx/clk-fixup-mux.c                    |   2 +-
 drivers/clk/imx/clk-imx7ulp.c                      | 209 +++++++++++++++++++++
 drivers/clk/imx/clk-pfdv2.c                        | 201 ++++++++++++++++++++
 drivers/clk/imx/clk-pllv4.c                        | 182 ++++++++++++++++++
 drivers/clk/imx/clk.c                              |  22 +++
 drivers/clk/imx/clk.h                              |  92 ++++++++-
 include/dt-bindings/clock/imx7ulp-clock.h          | 109 +++++++++++
 include/linux/clk-provider.h                       |  17 ++
 14 files changed, 1166 insertions(+), 10 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
 create mode 100644 drivers/clk/imx/clk-composite.c
 create mode 100644 drivers/clk/imx/clk-imx7ulp.c
 create mode 100644 drivers/clk/imx/clk-pfdv2.c
 create mode 100644 drivers/clk/imx/clk-pllv4.c
 create mode 100644 include/dt-bindings/clock/imx7ulp-clock.h

Comments

Aisheng Dong Oct. 21, 2018, 1:15 p.m. UTC | #1

Hi Stephen,

In case you might miss to queue this series into your review list, so I resend this series again.
This series actually has been pending for a couple of months without comments.
Hopefully you could help find some time to handle it when you're free.

Thanks

Regards
Dong Aisheng

> -----Original Message-----
> From: A.s. Dong
> Sent: Sunday, October 21, 2018 9:11 PM
> To: [e-mail]
> Cc: [e-mail]; [e-mail];
> [e-mail]; [e-mail]; [e-mail]; Anson
> Huang <[e-mail]>; Jacky Bai <[e-mail]>; dl-linux-imx
> <[e-mail]>; A.s. Dong <[e-mail]>
> Subject: [PATCH RESEND V4 0/9] clk: add imx7ulp clk support
> 
> This is a rebased version of below patch series against latest clk tree.
> [PATCH RESEND V3 0/9] clk: add imx7ulp clk support
> https://lkml.org/lkml/2018/3/16/310
> 
> It only updates the license to SPDX format as well as a minor fix of pllv4.
> 
> This patch series intends to add imx7ulp clk support.
> 
> i.MX7ULP Clock functions are under joint control of the System Clock
> Generation (SCG) modules, Peripheral Clock Control (PCC) modules, and Core
> Mode Controller (CMC)1 blocks
> 
> The clocking scheme provides clear separation between M4 domain and A7
> domain. Except for a few clock sources shared between two domains, such as
> the System Oscillator clock, the Slow IRC (SIRC), and and the Fast IRC clock
> (FIRCLK), clock sources and clock management are separated and contained
> within each domain.
> 
> M4 clock management consists of SCG0, PCC0, PCC1, and CMC0 modules.
> A7 clock management consists of SCG1, PCC2, PCC3, and CMC1 modules.
> 
> Note: this series only adds A7 clock domain support as M4 clock domain will
> be handled by M4 seperately.
> 
> Change Log:
> v3->v4:
>  * update after changing scg and pcc into separete nodes according to
>    Rob's suggestion
> v2->v3:
>  * Patch 1 changed on: 1) split normal and gate ops 2) fix the possible racy
>    Others no changes.
> 
> v1->v2:
>  * add enable/disable for the type of CLK_DIVIDER_ZERO_GATE dividers
>  * use clk_hw apis to register clocks
>  * use of_clk_add_hw_provider
>  * split the clocks register process into two parts: early part for possible
>    timers clocks registered by CLK_OF_DECLARE_DRIVER and the later part for
>    the left normal peripheral clocks registered by a platform driver.
> 
> Dong Aisheng (9):
>   clk: clk-divider: add CLK_DIVIDER_ZERO_GATE clk support
>   clk: fractional-divider: add CLK_FRAC_DIVIDER_ZERO_BASED flag support
>   clk: imx: add pllv4 support
>   clk: imx: add pfdv2 support
>   clk: imx: add composite clk support
>   dt-bindings: clock: add imx7ulp clock binding doc
>   clk: imx: make mux parent strings const
>   clk: imx: implement new clk_hw based APIs
>   clk: imx: add imx7ulp clk driver
> 
>  .../devicetree/bindings/clock/imx7ulp-clock.txt    |  87 +++++++++
>  drivers/clk/clk-divider.c                          | 152
> +++++++++++++++
>  drivers/clk/clk-fractional-divider.c               |  10 +
>  drivers/clk/imx/Makefile                           |   6 +-
>  drivers/clk/imx/clk-busy.c                         |   2 +-
>  drivers/clk/imx/clk-composite.c                    |  85 +++++++++
>  drivers/clk/imx/clk-fixup-mux.c                    |   2 +-
>  drivers/clk/imx/clk-imx7ulp.c                      | 209
> +++++++++++++++++++++
>  drivers/clk/imx/clk-pfdv2.c                        | 201
> ++++++++++++++++++++
>  drivers/clk/imx/clk-pllv4.c                        | 182
> ++++++++++++++++++
>  drivers/clk/imx/clk.c                              |  22 +++
>  drivers/clk/imx/clk.h                              |  92 ++++++++-
>  include/dt-bindings/clock/imx7ulp-clock.h          | 109 +++++++++++
>  include/linux/clk-provider.h                       |  17 ++
>  14 files changed, 1166 insertions(+), 10 deletions(-)  create mode 100644
> Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
>  create mode 100644 drivers/clk/imx/clk-composite.c  create mode 100644
> drivers/clk/imx/clk-imx7ulp.c  create mode 100644
> drivers/clk/imx/clk-pfdv2.c  create mode 100644 drivers/clk/imx/clk-pllv4.c
> create mode 100644 include/dt-bindings/clock/imx7ulp-clock.h
> 
> --
> 2.7.4

Aisheng Dong Nov. 6, 2018, 3:30 p.m. UTC | #2

Gently Ping...

> -----Original Message-----
> From: A.s. Dong
> Sent: Sunday, October 21, 2018 9:15 PM
> To: [e-mail]
> Cc: [e-mail]; [e-mail];
> [e-mail]; [e-mail]; Anson Huang
> <[e-mail]>; Jacky Bai <[e-mail]>; dl-linux-imx
> <[e-mail]>; [e-mail]
> Subject: RE: [PATCH RESEND V4 0/9] clk: add imx7ulp clk support
> 
> Hi Stephen,
> 
> In case you might miss to queue this series into your review list, so I resend this
> series again.
> This series actually has been pending for a couple of months without
> comments.
> Hopefully you could help find some time to handle it when you're free.
> 
> Thanks
> 
> Regards
> Dong Aisheng
> 
> > -----Original Message-----
> > From: A.s. Dong
> > Sent: Sunday, October 21, 2018 9:11 PM
> > To: [e-mail]
> > Cc: [e-mail];
> > [e-mail];
> > [e-mail]; [e-mail]; [e-mail];
> Anson
> > Huang <[e-mail]>; Jacky Bai <[e-mail]>;
> > dl-linux-imx <[e-mail]>; A.s. Dong <[e-mail]>
> > Subject: [PATCH RESEND V4 0/9] clk: add imx7ulp clk support
> >
> > This is a rebased version of below patch series against latest clk tree.
> > [PATCH RESEND V3 0/9] clk: add imx7ulp clk support
> > https://lkml.org/lkml/2018/3/16/310
> >
> > It only updates the license to SPDX format as well as a minor fix of pllv4.
> >
> > This patch series intends to add imx7ulp clk support.
> >
> > i.MX7ULP Clock functions are under joint control of the System Clock
> > Generation (SCG) modules, Peripheral Clock Control (PCC) modules, and
> > Core Mode Controller (CMC)1 blocks
> >
> > The clocking scheme provides clear separation between M4 domain and A7
> > domain. Except for a few clock sources shared between two domains,
> > such as the System Oscillator clock, the Slow IRC (SIRC), and and the
> > Fast IRC clock (FIRCLK), clock sources and clock management are
> > separated and contained within each domain.
> >
> > M4 clock management consists of SCG0, PCC0, PCC1, and CMC0 modules.
> > A7 clock management consists of SCG1, PCC2, PCC3, and CMC1 modules.
> >
> > Note: this series only adds A7 clock domain support as M4 clock domain
> > will be handled by M4 seperately.
> >
> > Change Log:
> > v3->v4:
> >  * update after changing scg and pcc into separete nodes according to
> >    Rob's suggestion
> > v2->v3:
> >  * Patch 1 changed on: 1) split normal and gate ops 2) fix the possible racy
> >    Others no changes.
> >
> > v1->v2:
> >  * add enable/disable for the type of CLK_DIVIDER_ZERO_GATE dividers
> >  * use clk_hw apis to register clocks
> >  * use of_clk_add_hw_provider
> >  * split the clocks register process into two parts: early part for possible
> >    timers clocks registered by CLK_OF_DECLARE_DRIVER and the later part
> for
> >    the left normal peripheral clocks registered by a platform driver.
> >
> > Dong Aisheng (9):
> >   clk: clk-divider: add CLK_DIVIDER_ZERO_GATE clk support
> >   clk: fractional-divider: add CLK_FRAC_DIVIDER_ZERO_BASED flag support
> >   clk: imx: add pllv4 support
> >   clk: imx: add pfdv2 support
> >   clk: imx: add composite clk support
> >   dt-bindings: clock: add imx7ulp clock binding doc
> >   clk: imx: make mux parent strings const
> >   clk: imx: implement new clk_hw based APIs
> >   clk: imx: add imx7ulp clk driver
> >
> >  .../devicetree/bindings/clock/imx7ulp-clock.txt    |  87 +++++++++
> >  drivers/clk/clk-divider.c                          | 152
> > +++++++++++++++
> >  drivers/clk/clk-fractional-divider.c               |  10 +
> >  drivers/clk/imx/Makefile                           |   6 +-
> >  drivers/clk/imx/clk-busy.c                         |   2 +-
> >  drivers/clk/imx/clk-composite.c                    |  85 +++++++++
> >  drivers/clk/imx/clk-fixup-mux.c                    |   2 +-
> >  drivers/clk/imx/clk-imx7ulp.c                      | 209
> > +++++++++++++++++++++
> >  drivers/clk/imx/clk-pfdv2.c                        | 201
> > ++++++++++++++++++++
> >  drivers/clk/imx/clk-pllv4.c                        | 182
> > ++++++++++++++++++
> >  drivers/clk/imx/clk.c                              |  22 +++
> >  drivers/clk/imx/clk.h                              |  92 ++++++++-
> >  include/dt-bindings/clock/imx7ulp-clock.h          | 109 +++++++++++
> >  include/linux/clk-provider.h                       |  17 ++
> >  14 files changed, 1166 insertions(+), 10 deletions(-)  create mode
> > 100644 Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
> >  create mode 100644 drivers/clk/imx/clk-composite.c  create mode
> > 100644 drivers/clk/imx/clk-imx7ulp.c  create mode 100644
> > drivers/clk/imx/clk-pfdv2.c  create mode 100644
> > drivers/clk/imx/clk-pllv4.c create mode 100644
> > include/dt-bindings/clock/imx7ulp-clock.h
> >
> > --
> > 2.7.4

Leonard Crestez Nov. 6, 2018, 3:34 p.m. UTC | #3

On Tue, 2018-11-06 at 15:30 +0000, A.s. Dong wrote:
> Gently Ping...

> drivers/clk/imx/clk-composite.c                    |  85 +++++++++

During review for 8m clocks a separate but different composite clk was
added. In order to avoid confusion that was named "clk-composite-8m.c", 
it would make sense to move the 7ulp code to clk-composite-7ulp.c.

--
Regards,
Leonard

Aisheng Dong Nov. 7, 2018, 3 a.m. UTC | #4

> -----Original Message-----
> From: Leonard Crestez
> Sent: Tuesday, November 6, 2018 11:34 PM
[...]
> 
> On Tue, 2018-11-06 at 15:30 +0000, A.s. Dong wrote:
> > Gently Ping...
> 
> > drivers/clk/imx/clk-composite.c                    |  85 +++++++++
> 
> During review for 8m clocks a separate but different composite clk was added.
> In order to avoid confusion that was named "clk-composite-8m.c", it would
> make sense to move the 7ulp code to clk-composite-7ulp.c.
> 

I guess we can do it, thanks.

Regards
Dong Aisheng

> --
> Regards,
> Leonard