Hi Lukasz,
On Fri, May 17, 2019 at 6:16 AM Lukasz Majewski lukma@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@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