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Message-ID: <20131130230549.16819.84161@quantum>
Date: Sat, 30 Nov 2013 15:05:49 -0800
From: Mike Turquette <mturquette@...aro.org>
To: Boris BREZILLON <b.brezillon@...rkiz.com>,
"Nicolas Ferre" <nicolas.ferre@...el.com>,
"Russell King" <linux@....linux.org.uk>,
"Felipe Balbi" <balbi@...com>,
"Jason Cooper" <jason@...edaemon.net>
Cc: "Boris BREZILLON" <b.brezillon@...rkiz.com>,
devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-usb@...r.kernel.org
Subject: Re: [PATCH v6 00/16] ARM: at91: move to common clk framework
Quoting Boris BREZILLON (2013-11-28 04:36:24)
> Hello,
>
> This patch series is the 5th version of the at91 clk implementations
> using the Common Clk Framework.
Oops, I just replied to v5 of this series. Thanks for the fixes. Which
tree do you want this to go through?
Regards,
Mike
>
> Most of the clock provided by the PMC (Power Management Controller) are
> implemented :
> - main clock (main oscillator)
> - pll clocks
> - master clock
> - programmable clocks
> - utmi clock
> - peripheral clocks
> - system clocks
>
> Actually some clk drivers are missing (slow clk, main clk and processor
> clk), and some drivers only implement a subset of the hardware capabilities
> (master clk rate change is missing).
> But this series implements all the already available clks, and I will hopefully
> add missing features in a near future.
>
> This implementation is only compatible with device tree definition.
> The goal is to define the whole clock tree using the device tree.
>
> Just a note to let you know these bindings are currently unstable and might
> change in the future.
>
>
> Best Regards,
> Boris
>
> Changes since v5:
> - remove peripheral divisors macros from dt binding include file
> - remove file path from comment blocks
> - replace pll and utmi disable function by unprepare function to
> avoid issue when disabling and reenabling a clk
> - fix programmable clk interrupt retrieval
> - fix OF_CLK_DECLARE names (xxx_clk_main -> xxx_clk_pmc)
> - add missing comma in at91rm9200 main clk dt declaration
> - fix num_parents check in smd clk driver
>
> Changes since v4:
> - rework dt bindings:
> * replace "atmel,clk-id" property by the standard "reg" property
> * reference system, peripheral and programmable clks using the direct
> clk node instead of the parent node plus a clk id
> - provide a new helper function (of_at91_get_clk_range) to retrieve a clk
> range from the device tree
>
> Changes since v3:
> - simplify master clk implementation (drop set_rate/parent support)
> - fix bug in set_rate function of pll driver
> - fix coding style issues
> - define macros and constants where needed
> - remove peripheral id macro references
> - remove sam9g35 specific handling (sam9g35 = sam9x5)
> - rework main clk prepare function to handle automatic rate calculation
>
> Changes since v2:
> - fix several bugs in clk implementations
> - drop non-dt boards support
> - split the series to ease review and tests:
> * 1 patch series for new clk implementations (this series)
> * 1 patch series to move each at91 SoC to common clk framework (coming soon)
> - modify dt-bindings (add atmel,clk- prefix to atmel specific properties)
> - add clk macros for dt-bindings
> - add pmc framework (helper function to access pmc registers)
> - add interrupt support to enable passive wait in clk_prepare functions
>
> Changes since v1:
> - fix bugs in pll, programmable and system clock implementations
> (wrong bit position).
> - add usb clock configuration support (ohci and udc drivers +
> clk_lookup for non dt boards)
> - rework of the system clock interfaces (no need to define a parent clock,
> system clock is a gate with no rate info)
> - change system, peripheral and programmable clk dt bindings (1 master node
> and multiple child nodes each defining a system/peripheral or prog clock)
> - fix bugs in sama5 dt definition
>
> Boris BREZILLON (16):
> ARM: at91: move at91_pmc.h to include/linux/clk/at91_pmc.h
> ARM: at91: add Kconfig options for common clk support
> clk: at91: add PMC base support
> clk: at91: add PMC macro file for dt definitions
> clk: at91: add PMC main clock
> clk: at91: add PMC pll clocks
> clk: at91: add PMC master clock
> clk: at91: add PMC system clocks
> clk: at91: add PMC peripheral clocks
> clk: at91: add PMC programmable clocks
> clk: at91: add PMC utmi clock
> clk: at91: add PMC usb clock
> clk: at91: add PMC smd clock
> dt: binding: add at91 clks dt bindings documentation
> ARM: at91: move pit timer to common clk framework
> ARM: at91: add new compatible strings for pmc driver
>
> .../devicetree/bindings/clock/at91-clock.txt | 339 +++++++++++++
> arch/arm/mach-at91/Kconfig | 44 ++
> arch/arm/mach-at91/Kconfig.non_dt | 6 +
> arch/arm/mach-at91/Makefile | 2 +-
> arch/arm/mach-at91/at91rm9200.c | 2 +-
> arch/arm/mach-at91/at91sam9260.c | 2 +-
> arch/arm/mach-at91/at91sam9261.c | 2 +-
> arch/arm/mach-at91/at91sam9263.c | 2 +-
> arch/arm/mach-at91/at91sam926x_time.c | 14 +-
> arch/arm/mach-at91/at91sam9g45.c | 2 +-
> arch/arm/mach-at91/at91sam9n12.c | 2 +-
> arch/arm/mach-at91/at91sam9rl.c | 2 +-
> arch/arm/mach-at91/at91sam9x5.c | 2 +-
> arch/arm/mach-at91/clock.c | 7 +-
> arch/arm/mach-at91/generic.h | 3 +-
> arch/arm/mach-at91/pm.c | 2 +-
> arch/arm/mach-at91/pm_slowclock.S | 2 +-
> arch/arm/mach-at91/sama5d3.c | 2 +-
> arch/arm/mach-at91/setup.c | 8 +-
> drivers/clk/Makefile | 1 +
> drivers/clk/at91/Makefile | 12 +
> drivers/clk/at91/clk-main.c | 187 +++++++
> drivers/clk/at91/clk-master.c | 270 ++++++++++
> drivers/clk/at91/clk-peripheral.c | 410 +++++++++++++++
> drivers/clk/at91/clk-pll.c | 531 ++++++++++++++++++++
> drivers/clk/at91/clk-plldiv.c | 135 +++++
> drivers/clk/at91/clk-programmable.c | 366 ++++++++++++++
> drivers/clk/at91/clk-smd.c | 171 +++++++
> drivers/clk/at91/clk-system.c | 135 +++++
> drivers/clk/at91/clk-usb.c | 398 +++++++++++++++
> drivers/clk/at91/clk-utmi.c | 159 ++++++
> drivers/clk/at91/pmc.c | 397 +++++++++++++++
> drivers/clk/at91/pmc.h | 116 +++++
> drivers/usb/gadget/atmel_usba_udc.c | 2 +-
> include/dt-bindings/clk/at91.h | 22 +
> .../include/mach => include/linux/clk}/at91_pmc.h | 4 +-
> 36 files changed, 3741 insertions(+), 20 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/clock/at91-clock.txt
> create mode 100644 drivers/clk/at91/Makefile
> create mode 100644 drivers/clk/at91/clk-main.c
> create mode 100644 drivers/clk/at91/clk-master.c
> create mode 100644 drivers/clk/at91/clk-peripheral.c
> create mode 100644 drivers/clk/at91/clk-pll.c
> create mode 100644 drivers/clk/at91/clk-plldiv.c
> create mode 100644 drivers/clk/at91/clk-programmable.c
> create mode 100644 drivers/clk/at91/clk-smd.c
> create mode 100644 drivers/clk/at91/clk-system.c
> create mode 100644 drivers/clk/at91/clk-usb.c
> create mode 100644 drivers/clk/at91/clk-utmi.c
> create mode 100644 drivers/clk/at91/pmc.c
> create mode 100644 drivers/clk/at91/pmc.h
> create mode 100644 include/dt-bindings/clk/at91.h
> rename {arch/arm/mach-at91/include/mach => include/linux/clk}/at91_pmc.h (98%)
>
> --
> 1.7.9.5
--
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