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/20180703145716.31860-1-yixun....@amlogic.com [3] https://lkml.kernel.org/r/20180710163658.6175-1-yixun....@amlogic.com [4] https://lkml.kernel.org/r/20180712211244.11428-1-yixun....@amlogic.com 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 -- 2.17.1
