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Message-ID: <51B1B270.2090002@free-electrons.com> Date: Fri, 07 Jun 2013 12:14:08 +0200 From: Gregory CLEMENT <gregory.clement@...e-electrons.com> To: boris brezillon <b.brezillon@...rkiz.com> CC: Nicolas Ferre <nicolas.ferre@...el.com>, linux-fbdev@...r.kernel.org, Mike Turquette <mturquette@...aro.org>, linux-doc@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org, linux-usb@...r.kernel.org, linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org, Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>, linux-arm-kernel@...ts.infradead.org Subject: Re: [RFC 00/50] ARM: at91: move to common clk framework On 06/07/2013 11:32 AM, boris brezillon wrote: > On 07/06/2013 11:22, Nicolas Ferre wrote: >> On 07/06/2013 10:34, Boris BREZILLON : >>> Hello, >>> >>> This patch series is a proposal to move at91 clock implementation >>> to common clk framework. >> >> Before discussion begins I would like to give my kudos to you Boris! >> This is huge work and I thank you for it: It is so great! >> >> I am sure that Jean-Christophe will have his idea on that because he >> told me that he thought a little bit about that, but I am sure that we >> will come to a quick and seamlessly integration soon. >> >> (Hey, I know it is not technical email, but I am so exited to see this >> happen that the noise worth it! ;-)) > I received several notifications about filtered mails. > Could you tell me if you received the whole series ? I have just received this email. But since few days (or weeks) I have observed a big latency on the LAKML. Sometime my emails were in the LAKML after 3 or 4 hours. > And do you know why this could have been filtered ? There is a filter which prevent to "hijack" a thread by changing the topic. of course it is a problem for the patch set sent with git send-email. So for this there is an exception if you have the word PATCH in your topic. But it doesn't work with the work RFC. Maybe it is the word you have chosen. If you are in this case then you can use [PATCH RFC ] Regards > > >> >>> 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 >>> >>> This implementation is compatible with device tree: the goal is >>> to define the whole clock tree in the device tree (all currently >>> available dt SoCs and boards are patched to support dt clocks). >>> Please feel free to comment the dt bindinds (I'm not sure about the >>> name I choose or the position of clock nodes: children of pmc node). >>> >>> I removed the register_clocks function in SoC supporting dt boards only: >>> - at91sam9x5 SoCs >>> - at91sam9n12 SoC >>> - sama5d3 SoCs >>> >>> This patch series also update at91 drivers calling clk_enable/disable >>> instead of the preferred clk_prepare_enable/disable_unprepare functions. >>> >>> >>> I know there are a lot of cleanup in progress for at91 arch, so >>> please tell >>> me if you think this transition to common clk framework should wait. >>> >>> This patch series has been tested on Kizbox (sam9g20 SoC) board using >>> device >>> tree. It compiles for other SoCs and both with and without dt >>> support, but it >>> has not been tested. >>> >>> The clocks rate/parent change has not been tested. >>> >>> Best Regards, >>> Boris >>> >>> Boris BREZILLON (50): >>> ARM: at91: move arch/arm/mach-at91/include/mach/at91_pmc.h to >>> include/linux/clk/at91.h >>> ARM: at91: add PMC main clock using common clk framework. >>> ARM: at91: add PMC pll clocks support using common clk framework. >>> ARM: at91: add PMC master clock support using common clk framework. >>> ARM: at91: add PMC system clocks support using common clk framework. >>> ARM: at91: add PMC peripheral clocks support using common clk >>> framework. >>> ARM: at91: add PMC programmable clocks support using common clk >>> framework. >>> ARM: at91: add PMC utmi clock support using common clk framework. >>> ARM: at91: add PMC usb clock support using common clk framework. >>> ARM: at91: add PMC smd clock support using common clk framework. >>> ARM: at91: add PMC clk device tree binding doc. >>> ARM: at91: move to common clk framework. >>> ARM: at91: move at91rm9200 SoC to common clk framework. >>> ARM: at91: move at91sam9260 SoC to common clk framework. >>> ARM: at91: move at91sam9263 SoC to common clk framework. >>> ARM: at91: move at91sam9263 SoC to common clk framework. >>> ARM: at91: move at91sam9g45 SoC to common clk framework. >>> ARM: at91: move at91sam9n12 SoC to common clk framework. >>> ARM: at91: move at91sam9rl SoC to common clk framework. >>> ARM: at91: move at91sam9x5 SoCs to common clk framework. >>> ARM: at91: move at91sam9 SoCs to common clk framework. >>> ARM: at91: move sama5d3 SoCs to common clk framework. >>> ARM: at91: move at91rm9200 non dt boards to common clk framework. >>> ARM: at91: move at91sam9 non dt boards to common clk framework. >>> ARM: at91: move pit timer to common clk framework. >>> ARM: at91/tc/clocksource: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> at_hdmac: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> ASoC: atmel-ssc: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> mmc: atmel-mci: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> pwm: atmel-tcb: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> tty: atmel_serial: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> usb: gadget: at91_udc: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> drivers/usb/host/ehci-atmel.c: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> USB: ohci-at91: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> ARM: at91/avr32/atmel_lcdfb: replace clk_enable/disable with >>> clk_prepare_enable/disable_unprepare. >>> ARM: at91/dt: move at91rm9200 SoC to clk framework. >>> ARM: at91/dt: move at91sam9260 SoC to common clk framework. >>> ARM: at91/dt: move at91sam9263 SoC to common clk framework. >>> ARM: at91/dt: move at91sam9g45 SoC to common clk framework. >>> ARM: at91/dt: move at91sam9n12 SoC to common clk framework. >>> ARM: at91/dt: move at91sam9x5 SoCs to common clk framework. >>> ARM: at91/dt: move at91sam9g20 SoC to common clk framework. >>> ARM: at91/dt: move sama5d3 SoCs to common clk framework. >>> ARM: at91/dt: move at91sam9260/sam9g20 boards to common clk >>> framework. >>> ARM: at91/dt: move at91rm9200 boards to common clk framework. >>> ARM: at91/dt: move at91sam9263 boards to common clk framework. >>> ARM: at91/dt: move at91sam9g45 boards to common clk framework. >>> ARM: at91/dt: move at91sam9n12 boards to common clk framework. >>> ARM: at91/dt: move at91sam9x5 boards to common clk framework. >>> ARM: at91/dt: move sama5d3 boards to common clk framework. >>> >>> .../devicetree/bindings/clock/at91-clock.txt | 247 +++++ >>> arch/arm/boot/dts/animeo_ip.dts | 17 +- >>> arch/arm/boot/dts/at91-ariag25.dts | 17 +- >>> arch/arm/boot/dts/at91rm9200.dtsi | 133 +++ >>> arch/arm/boot/dts/at91rm9200ek.dts | 17 +- >>> arch/arm/boot/dts/at91sam9260.dtsi | 144 ++- >>> arch/arm/boot/dts/at91sam9263.dtsi | 135 +++ >>> arch/arm/boot/dts/at91sam9263ek.dts | 17 +- >>> arch/arm/boot/dts/at91sam9g15.dtsi | 11 + >>> arch/arm/boot/dts/at91sam9g20.dtsi | 37 + >>> arch/arm/boot/dts/at91sam9g20ek_common.dtsi | 17 +- >>> arch/arm/boot/dts/at91sam9g25.dtsi | 3 + >>> arch/arm/boot/dts/at91sam9g35.dtsi | 23 + >>> arch/arm/boot/dts/at91sam9g45.dtsi | 157 ++++ >>> arch/arm/boot/dts/at91sam9m10g45ek.dts | 17 +- >>> arch/arm/boot/dts/at91sam9n12.dtsi | 153 ++++ >>> arch/arm/boot/dts/at91sam9n12ek.dts | 17 +- >>> arch/arm/boot/dts/at91sam9x25.dtsi | 25 +- >>> arch/arm/boot/dts/at91sam9x35.dtsi | 3 + >>> arch/arm/boot/dts/at91sam9x5.dtsi | 226 +++-- >>> arch/arm/boot/dts/at91sam9x5_can.dtsi | 24 + >>> arch/arm/boot/dts/at91sam9x5_isi.dtsi | 24 + >>> arch/arm/boot/dts/at91sam9x5_lcdc.dtsi | 32 + >>> arch/arm/boot/dts/at91sam9x5_macb0.dtsi | 68 ++ >>> arch/arm/boot/dts/at91sam9x5_macb1.dtsi | 56 ++ >>> arch/arm/boot/dts/at91sam9x5_usart3.dtsi | 60 ++ >>> arch/arm/boot/dts/ge863-pro3.dtsi | 16 +- >>> arch/arm/boot/dts/kizbox.dts | 5 + >>> arch/arm/boot/dts/mpa1600.dts | 16 +- >>> arch/arm/boot/dts/pm9g45.dts | 16 +- >>> arch/arm/boot/dts/sama5d3.dtsi | 358 ++++---- >>> arch/arm/boot/dts/sama5d31ek.dts | 4 + >>> arch/arm/boot/dts/sama5d33ek.dts | 2 + >>> arch/arm/boot/dts/sama5d34ek.dts | 4 + >>> arch/arm/boot/dts/sama5d35ek.dts | 6 + >>> arch/arm/boot/dts/sama5d3_can.dtsi | 67 ++ >>> arch/arm/boot/dts/sama5d3_emac.dtsi | 56 ++ >>> arch/arm/boot/dts/sama5d3_gmac.dtsi | 89 ++ >>> arch/arm/boot/dts/sama5d3_lcd.dtsi | 73 ++ >>> arch/arm/boot/dts/sama5d3_mci2.dtsi | 59 ++ >>> arch/arm/boot/dts/sama5d3_tcb1.dtsi | 39 + >>> arch/arm/boot/dts/sama5d3_uart.dtsi | 42 + >>> arch/arm/boot/dts/sama5d3xcm.dtsi | 17 +- >>> arch/arm/boot/dts/tny_a9260_common.dtsi | 17 +- >>> arch/arm/boot/dts/tny_a9263.dts | 17 +- >>> arch/arm/boot/dts/usb_a9260_common.dtsi | 17 +- >>> arch/arm/boot/dts/usb_a9263.dts | 17 +- >>> arch/arm/mach-at91/Kconfig | 26 + >>> arch/arm/mach-at91/Makefile | 2 +- >>> arch/arm/mach-at91/at91rm9200.c | 578 +++++++----- >>> arch/arm/mach-at91/at91sam9260.c | 694 >>> +++++++++----- >>> arch/arm/mach-at91/at91sam9261.c | 581 ++++++++---- >>> arch/arm/mach-at91/at91sam9263.c | 599 +++++++----- >>> arch/arm/mach-at91/at91sam926x_time.c | 21 +- >>> arch/arm/mach-at91/at91sam9g45.c | 705 >>> ++++++++------ >>> arch/arm/mach-at91/at91sam9g45_devices.c | 1 - >>> arch/arm/mach-at91/at91sam9n12.c | 196 +--- >>> arch/arm/mach-at91/at91sam9rl.c | 514 +++++++---- >>> arch/arm/mach-at91/at91sam9x5.c | 291 +----- >>> arch/arm/mach-at91/board-1arm.c | 12 +- >>> arch/arm/mach-at91/board-afeb-9260v1.c | 11 +- >>> arch/arm/mach-at91/board-cam60.c | 13 +- >>> arch/arm/mach-at91/board-carmeva.c | 13 +- >>> arch/arm/mach-at91/board-cpu9krea.c | 12 +- >>> arch/arm/mach-at91/board-cpuat91.c | 12 +- >>> arch/arm/mach-at91/board-csb337.c | 11 +- >>> arch/arm/mach-at91/board-csb637.c | 11 +- >>> arch/arm/mach-at91/board-dt-rm9200.c | 9 +- >>> arch/arm/mach-at91/board-dt-sam9.c | 9 +- >>> arch/arm/mach-at91/board-dt-sama5.c | 9 +- >>> arch/arm/mach-at91/board-eb9200.c | 11 +- >>> arch/arm/mach-at91/board-ecbat91.c | 12 +- >>> arch/arm/mach-at91/board-eco920.c | 13 +- >>> arch/arm/mach-at91/board-flexibity.c | 12 +- >>> arch/arm/mach-at91/board-foxg20.c | 12 +- >>> arch/arm/mach-at91/board-gsia18s.c | 8 +- >>> arch/arm/mach-at91/board-kafa.c | 12 +- >>> arch/arm/mach-at91/board-kb9202.c | 12 +- >>> arch/arm/mach-at91/board-pcontrol-g20.c | 9 +- >>> arch/arm/mach-at91/board-picotux200.c | 11 +- >>> arch/arm/mach-at91/board-qil-a9260.c | 11 +- >>> arch/arm/mach-at91/board-rm9200dk.c | 11 +- >>> arch/arm/mach-at91/board-rm9200ek.c | 11 +- >>> arch/arm/mach-at91/board-rsi-ews.c | 12 +- >>> arch/arm/mach-at91/board-sam9-l9260.c | 11 +- >>> arch/arm/mach-at91/board-sam9260ek.c | 11 +- >>> arch/arm/mach-at91/board-sam9261ek.c | 15 +- >>> arch/arm/mach-at91/board-sam9263ek.c | 11 +- >>> arch/arm/mach-at91/board-sam9g20ek.c | 15 +- >>> arch/arm/mach-at91/board-sam9m10g45ek.c | 11 +- >>> arch/arm/mach-at91/board-sam9rlek.c | 11 +- >>> arch/arm/mach-at91/board-snapper9260.c | 12 +- >>> arch/arm/mach-at91/board-stamp9g20.c | 15 +- >>> arch/arm/mach-at91/board-yl-9200.c | 12 +- >>> arch/arm/mach-at91/clock.c | 961 >>> -------------------- >>> arch/arm/mach-at91/clock.h | 49 - >>> arch/arm/mach-at91/generic.h | 10 +- >>> arch/arm/mach-at91/pm.c | 2 +- >>> arch/arm/mach-at91/pm_slowclock.S | 2 +- >>> arch/arm/mach-at91/pmc.c | 58 ++ >>> arch/arm/mach-at91/sama5d3.c | 344 +------ >>> arch/arm/mach-at91/setup.c | 38 +- >>> arch/arm/mach-at91/stamp9g20.h | 2 +- >>> drivers/clk/Makefile | 1 + >>> drivers/clk/at91/Makefile | 11 + >>> drivers/clk/at91/clk-main.c | 106 +++ >>> drivers/clk/at91/clk-master.c | 317 +++++++ >>> drivers/clk/at91/clk-peripheral.c | 376 ++++++++ >>> drivers/clk/at91/clk-pll.c | 438 +++++++++ >>> drivers/clk/at91/clk-plldiv.c | 125 +++ >>> drivers/clk/at91/clk-programmable.c | 370 ++++++++ >>> drivers/clk/at91/clk-smd.c | 157 ++++ >>> drivers/clk/at91/clk-system.c | 189 ++++ >>> drivers/clk/at91/clk-usb.c | 303 ++++++ >>> drivers/clk/at91/clk-utmi.c | 114 +++ >>> drivers/clocksource/tcb_clksrc.c | 10 +- >>> drivers/dma/at_hdmac.c | 12 +- >>> drivers/misc/atmel-ssc.c | 8 +- >>> drivers/mmc/host/atmel-mci.c | 16 +- >>> drivers/pwm/pwm-atmel-tcb.c | 4 +- >>> drivers/tty/serial/atmel_serial.c | 35 +- >>> drivers/usb/gadget/at91_udc.c | 12 +- >>> drivers/usb/gadget/atmel_usba_udc.c | 2 +- >>> drivers/usb/host/ehci-atmel.c | 8 +- >>> drivers/usb/host/ohci-at91.c | 12 +- >>> drivers/video/atmel_lcdfb.c | 8 +- >>> .../mach/at91_pmc.h => include/linux/clk/at91.h | 122 ++- >>> 127 files changed, 7588 insertions(+), 3862 deletions(-) >>> create mode 100644 >>> Documentation/devicetree/bindings/clock/at91-clock.txt >>> create mode 100644 arch/arm/boot/dts/at91sam9x5_can.dtsi >>> create mode 100644 arch/arm/boot/dts/at91sam9x5_isi.dtsi >>> create mode 100644 arch/arm/boot/dts/at91sam9x5_lcdc.dtsi >>> create mode 100644 arch/arm/boot/dts/at91sam9x5_macb0.dtsi >>> create mode 100644 arch/arm/boot/dts/at91sam9x5_macb1.dtsi >>> create mode 100644 arch/arm/boot/dts/at91sam9x5_usart3.dtsi >>> create mode 100644 arch/arm/boot/dts/sama5d3_can.dtsi >>> create mode 100644 arch/arm/boot/dts/sama5d3_emac.dtsi >>> create mode 100644 arch/arm/boot/dts/sama5d3_gmac.dtsi >>> create mode 100644 arch/arm/boot/dts/sama5d3_lcd.dtsi >>> create mode 100644 arch/arm/boot/dts/sama5d3_mci2.dtsi >>> create mode 100644 arch/arm/boot/dts/sama5d3_tcb1.dtsi >>> create mode 100644 arch/arm/boot/dts/sama5d3_uart.dtsi >>> delete mode 100644 arch/arm/mach-at91/clock.c >>> delete mode 100644 arch/arm/mach-at91/clock.h >>> create mode 100644 arch/arm/mach-at91/pmc.c >>> 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 >>> rename arch/arm/mach-at91/include/mach/at91_pmc.h => >>> include/linux/clk/at91.h (76%) >>> >> >> > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@...ts.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. 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