[U-Boot] [PATCH v4 12/13] clk: Port Linux common clock framework [CCF] for imx6q to U-boot (tag: 5.0-rc3)

[Bin Meng]

Hi Lukasz,

On Fri, May 17, 2019 at 6:16 AM Lukasz Majewski <lukma at denx.de> wrote:
>
> This commit brings the files from Linux kernel to provide clocks support
> as it is used on the Linux kernel with common clock framework [CCF] setup.
>
> The directory structure has been preserved. The ported code only supports
> reading information from PLL, MUX, Divider, etc and enabling/disabling
> the clocks USDHCx/ECSPIx depending on used bus. Moreover, it is agnostic
> to the alias numbering as the information about the clock is read from
> device tree.
>
> One needs to pay attention to the comments indicating necessary for U-boot's

nits: it's U-Boot. Please fix this globally in the commit message, as
well as in the code comments in this commit.

> DM changes.
>
> If needed the code can be extended to support the "set" part of the clock
> management.
>
>
> Signed-off-by: Lukasz Majewski <lukma at denx.de>
> ---
>
> Changes in v4:
> - Port some more Linux code to facilitate imx8 code porting (most notably
>   flags)
> - Explicitly use container_of() based macro to provide struct clk in various
>   places (e.g. gate2, mux, etc)
>   Following patches has been squashed:
>   http://patchwork.ozlabs.org/patch/1093141/
>   http://patchwork.ozlabs.org/patch/1093142/
>   http://patchwork.ozlabs.org/patch/1093146/
>
> Changes in v3: None
>
>  drivers/clk/Kconfig            |  14 ++++
>  drivers/clk/Makefile           |   2 +
>  drivers/clk/clk-divider.c      | 148 ++++++++++++++++++++++++++++++++++
>  drivers/clk/clk-fixed-factor.c |  87 ++++++++++++++++++++
>  drivers/clk/clk-mux.c          | 164 +++++++++++++++++++++++++++++++++++++
>  drivers/clk/clk.c              |  56 +++++++++++++
>  drivers/clk/imx/Kconfig        |   9 +++
>  drivers/clk/imx/Makefile       |   2 +
>  drivers/clk/imx/clk-gate2.c    | 113 ++++++++++++++++++++++++++
>  drivers/clk/imx/clk-imx6q.c    | 179 +++++++++++++++++++++++++++++++++++++++++
>  drivers/clk/imx/clk-pfd.c      |  91 +++++++++++++++++++++
>  drivers/clk/imx/clk-pllv3.c    |  83 +++++++++++++++++++
>  drivers/clk/imx/clk.h          |  75 +++++++++++++++++
>  include/linux/clk-provider.h   | 115 ++++++++++++++++++++++++++
>  14 files changed, 1138 insertions(+)
>  create mode 100644 drivers/clk/clk-divider.c
>  create mode 100644 drivers/clk/clk-fixed-factor.c
>  create mode 100644 drivers/clk/clk-mux.c
>  create mode 100644 drivers/clk/clk.c
>  create mode 100644 drivers/clk/imx/clk-gate2.c
>  create mode 100644 drivers/clk/imx/clk-imx6q.c
>  create mode 100644 drivers/clk/imx/clk-pfd.c
>  create mode 100644 drivers/clk/imx/clk-pllv3.c
>  create mode 100644 drivers/clk/imx/clk.h
>  create mode 100644 include/linux/clk-provider.h
>

Regards,
Bin