The series was born from the need to manage the PWM backlight of the display connected to my beaglebone board. To hit the target, I had to develop drivers for PWM management which in turn relied on drivers for managing timers and clocks, all developed according to the driver model. My intention was to use the SoC-specific API only at strictly necessary points in the code. My previous patches for migrating the AM335x display driver to the driver model had required the implementation of additional functions outside the concerns of the driver, (settings for dividing the pixel clock rate, configuring the display DPLL rate, ....) not being able to use the API of the related clock drivers. This series shouldn't have repeated the same kind of mistake. Furthermore, I also wanted to fix that kind of forced choice. Almost everything should have been accessible via the driver model API. In the series there are also some patches that could be submitted separately, but which I have however inserted to avoid applying future patches to incorporate them. With this last consideration, I hope I have convincingly justified the large number of patches in the series.
The patch enabling address translation into a CPU physical address from device-tree even in case of crossing levels with #size-cells = <0>, is crucial for the series. The previous implementation was unable to perform the address translation required by the am33xx device tree. I tried to apply in a conservative way as few changes as possible and to verify the execution of all the tests already developed, as well as the new ones I added for the new feature.
Dario Binacchi (31): clk: remove a redundant header clk: export generic routines arch: sandbox: fix typo in clk.h clk: add clk_round_rate() clk: ti: add mux clock driver arm: ti: am33xx: add DPLL_EN_FAST_RELOCK_BYPASS macro clk: ti: am33xx: add DPLL clock drivers clk: ti: add divider clock driver clk: ti: refactor mux and divider clock drivers clk: ti: add gate clock driver ti: am33xx: fix do_enable_clocks() to accept NULL parameters clk: ti: add support for clkctrl clocks clk: ti: move drivers to 'ti' directory clk: ti: omap4: add clock manager driver clk: ti: am335x: add clock manager driver fdt: translate address if #size-cells = <0> omap: timer: fix the rate setting misc: am33xx: add control module driver pwm: ti: am33xx: add enhanced pwm driver pwm: ti: am33xx: add subsystem driver video: backlight: fix pwm's duty cycle calculation video: backlight: fix pwm data structure description dm: core: improve uclass_get_device_by_phandle_id() description gpio: fix gpio_request_by_name() description dm: core: add a function to decode display timings video: omap: add panel driver video: omap: enable LCD clock domain through DM API video: omap: set LCD clock rate through DM API video: omap: split the legacy code from the DM code video: omap: move drivers to 'ti' directory board: ti: am335x-ice: get CDCE913 clock device
arch/arm/dts/am335x-brppt1-mmc.dts | 3 +- arch/arm/dts/am335x-brppt1-nand.dts | 3 +- arch/arm/dts/am335x-brppt1-spi.dts | 3 +- arch/arm/dts/am335x-brsmarc1.dts | 2 +- arch/arm/dts/am335x-brxre1.dts | 3 +- arch/arm/dts/am335x-evm-u-boot.dtsi | 7 +- arch/arm/dts/am335x-evmsk-u-boot.dtsi | 6 +- arch/arm/dts/am335x-guardian-u-boot.dtsi | 8 +- arch/arm/dts/am335x-pdu001-u-boot.dtsi | 8 +- arch/arm/dts/am335x-pxm50-u-boot.dtsi | 6 +- arch/arm/dts/am335x-rut-u-boot.dtsi | 6 +- arch/arm/dts/am33xx.dtsi | 12 + arch/arm/dts/da850-evm-u-boot.dtsi | 8 +- arch/arm/include/asm/arch-am33xx/clock.h | 1 + arch/arm/mach-omap2/am33xx/clock.c | 10 +- arch/arm/mach-omap2/am33xx/clock_am33xx.c | 2 +- arch/sandbox/dts/test.dts | 67 +++ arch/sandbox/include/asm/clk.h | 35 +- board/ti/am335x/board.c | 2 +- board/ti/am43xx/board.c | 2 +- common/fdt_support.c | 10 +- doc/device-tree-bindings/arm/omap,ctrl.txt | 82 +++ doc/device-tree-bindings/arm/omap,prcm.txt | 63 +++ .../clock/clock-bindings.txt | 186 +++++++ .../clock/gpio-gate-clock.txt | 21 + .../clock/ti,autoidle.txt | 39 ++ doc/device-tree-bindings/clock/ti,clkctrl.txt | 61 +++ .../clock/ti,clockdomain.txt | 24 + doc/device-tree-bindings/clock/ti,divider.txt | 117 +++++ doc/device-tree-bindings/clock/ti,dpll.txt | 85 ++++ doc/device-tree-bindings/clock/ti,gate.txt | 106 ++++ doc/device-tree-bindings/clock/ti,mux.txt | 79 +++ .../pinctrl/pinctrl-single.txt | 255 ++++++++++ doc/device-tree-bindings/pwm/ti,ehrpwm.txt | 49 ++ doc/device-tree-bindings/pwm/ti,pwmss.txt | 58 +++ drivers/clk/Kconfig | 9 +- drivers/clk/Makefile | 2 +- drivers/clk/clk-divider.c | 18 +- drivers/clk/clk-uclass.c | 15 + drivers/clk/clk_sandbox.c | 17 + drivers/clk/clk_sandbox_test.c | 10 + drivers/clk/ti/Kconfig | 42 ++ drivers/clk/ti/Makefile | 18 + drivers/clk/ti/am3-prcm.c | 73 +++ drivers/clk/ti/clk-am3-dpll-x2.c | 78 +++ drivers/clk/ti/clk-am3-dpll.c | 267 ++++++++++ drivers/clk/ti/clk-ctrl.c | 102 ++++ drivers/clk/ti/clk-divider.c | 380 ++++++++++++++ drivers/clk/ti/clk-gate.c | 92 ++++ drivers/clk/ti/clk-mux.c | 252 ++++++++++ drivers/clk/{clk-ti-sci.c => ti/clk-sci.c} | 0 drivers/clk/ti/clk.c | 34 ++ drivers/clk/ti/clk.h | 13 + drivers/clk/ti/omap4-cm.c | 22 + drivers/core/Kconfig | 12 + drivers/core/fdtaddr.c | 2 +- drivers/core/of_addr.c | 14 +- drivers/core/ofnode.c | 11 +- drivers/core/read.c | 6 + drivers/misc/Kconfig | 7 + drivers/misc/Makefile | 1 + drivers/misc/ti-am3-scm.c | 90 ++++ drivers/pwm/Kconfig | 13 + drivers/pwm/Makefile | 2 + drivers/pwm/pwm-ti-ehrpwm.c | 465 ++++++++++++++++++ drivers/pwm/pwm-ti-pwmss.c | 95 ++++ drivers/timer/omap-timer.c | 6 +- drivers/video/Kconfig | 5 +- drivers/video/Makefile | 2 +- drivers/video/pwm_backlight.c | 4 +- drivers/video/ti/Kconfig | 8 + drivers/video/ti/Makefile | 10 + drivers/video/{ => ti}/am335x-fb.c | 342 +------------ drivers/video/{ => ti}/am335x-fb.h | 4 - drivers/video/ti/tilcdc-panel.c | 171 +++++++ drivers/video/ti/tilcdc-panel.h | 14 + drivers/video/ti/tilcdc.c | 438 +++++++++++++++++ drivers/video/ti/tilcdc.h | 38 ++ include/asm-generic/gpio.h | 2 +- include/clk-uclass.h | 8 + include/clk.h | 29 ++ include/dm/read.h | 24 + include/dm/uclass.h | 3 +- include/linux/clk-provider.h | 11 +- test/dm/clk.c | 22 + test/dm/panel.c | 12 +- test/dm/test-fdt.c | 153 +++++- 87 files changed, 4459 insertions(+), 438 deletions(-) create mode 100644 doc/device-tree-bindings/arm/omap,ctrl.txt create mode 100644 doc/device-tree-bindings/arm/omap,prcm.txt create mode 100644 doc/device-tree-bindings/clock/clock-bindings.txt create mode 100644 doc/device-tree-bindings/clock/gpio-gate-clock.txt create mode 100644 doc/device-tree-bindings/clock/ti,autoidle.txt create mode 100644 doc/device-tree-bindings/clock/ti,clkctrl.txt create mode 100644 doc/device-tree-bindings/clock/ti,clockdomain.txt create mode 100644 doc/device-tree-bindings/clock/ti,divider.txt create mode 100644 doc/device-tree-bindings/clock/ti,dpll.txt create mode 100644 doc/device-tree-bindings/clock/ti,gate.txt create mode 100644 doc/device-tree-bindings/clock/ti,mux.txt create mode 100644 doc/device-tree-bindings/pinctrl/pinctrl-single.txt create mode 100644 doc/device-tree-bindings/pwm/ti,ehrpwm.txt create mode 100644 doc/device-tree-bindings/pwm/ti,pwmss.txt create mode 100644 drivers/clk/ti/Kconfig create mode 100644 drivers/clk/ti/Makefile create mode 100644 drivers/clk/ti/am3-prcm.c create mode 100644 drivers/clk/ti/clk-am3-dpll-x2.c create mode 100644 drivers/clk/ti/clk-am3-dpll.c create mode 100644 drivers/clk/ti/clk-ctrl.c create mode 100644 drivers/clk/ti/clk-divider.c create mode 100644 drivers/clk/ti/clk-gate.c create mode 100644 drivers/clk/ti/clk-mux.c rename drivers/clk/{clk-ti-sci.c => ti/clk-sci.c} (100%) create mode 100644 drivers/clk/ti/clk.c create mode 100644 drivers/clk/ti/clk.h create mode 100644 drivers/clk/ti/omap4-cm.c create mode 100644 drivers/misc/ti-am3-scm.c create mode 100644 drivers/pwm/pwm-ti-ehrpwm.c create mode 100644 drivers/pwm/pwm-ti-pwmss.c create mode 100644 drivers/video/ti/Kconfig create mode 100644 drivers/video/ti/Makefile rename drivers/video/{ => ti}/am335x-fb.c (54%) rename drivers/video/{ => ti}/am335x-fb.h (97%) create mode 100644 drivers/video/ti/tilcdc-panel.c create mode 100644 drivers/video/ti/tilcdc-panel.h create mode 100644 drivers/video/ti/tilcdc.c create mode 100644 drivers/video/ti/tilcdc.h