[v4,0/3] clk: meson: add a sub EMMC clock controller support

Message

Yixun Lan Aug. 9, 2018, 7:07 a.m. UTC

This driver will add a MMC clock controller driver support.
The original idea about adding a clock controller is during the
discussion in the NAND driver mainline effort[1].

This driver is tested in the S400 board (AXG platform) with NAND driver.

Changes since v3 [4]:
 - separate clk-phase-delay driver
 - replace clk_get_rate() with clk_hw_get_rate()
 - collect Rob's R-Y
 - drop 'meson-' prefix from compatible string

Changes since v2 [3]:
 - squash dt-binding clock-id patch
 - update license
 - fix alignment
 - construct a clk register helper() function

Changes since v1 [2]:
 - implement phase clock
 - update compatible name
 - adjust file name
 - divider probe() into small functions, and re-use them

[1] https://lkml.kernel.org/r/20180628090034.0637a062@xps13
[2] https://lkml.kernel.org/r/[e-mail]
[3] https://lkml.kernel.org/r/[e-mail]
[4] https://lkml.kernel.org/r/[e-mail]

Yixun Lan (3):
  clk: meson: add emmc sub clock phase delay driver
  clk: meson: add DT documentation for emmc clock controller
  clk: meson: add sub MMC clock controller driver

 .../bindings/clock/amlogic,mmc-clkc.txt       |  31 ++
 drivers/clk/meson/Kconfig                     |  10 +
 drivers/clk/meson/Makefile                    |   3 +-
 drivers/clk/meson/clk-phase-delay.c           |  96 ++++++
 drivers/clk/meson/clkc.h                      |  13 +
 drivers/clk/meson/mmc-clkc.c                  | 275 ++++++++++++++++++
 include/dt-bindings/clock/amlogic,mmc-clkc.h  |  17 ++
 7 files changed, 444 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt
 create mode 100644 drivers/clk/meson/clk-phase-delay.c
 create mode 100644 drivers/clk/meson/mmc-clkc.c
 create mode 100644 include/dt-bindings/clock/amlogic,mmc-clkc.h