From: Stephen Warren <swar...@nvidia.com> This series implements a common reset framework driver for Tegra, and updates all relevant Tegra drivers to use it. It also removes the custom DMA bindings and replaced them with the standard DMA DT bindings.
Historically, the Tegra clock driver has exported a custom API for module reset. This series removes that API, and transitions DT and drivers to the new reset framework. The custom API used a "struct clk" to identify which module to reset, and consequently some DT bindings and drivers required clocks to be provided where they really needed just a reset identifier instead. Due to this known deficiency, I have always considered most Tegra bindings to be unstable. This series removes this excuse for instability, although I still consider some Tegra bindings unstable due to the need to convert to the common DMA bindings. Historically, Tegra DMA channels have been represented in DT using a custom nvidia,dma-request-selector property. Now that standard DMA DT bindings exist, convert all Tegra bindings, DTs, and drivers to use the standard instead. This series makes a DT-ABI-incompatible change to: - Require reset specifiers in DT where relevant. - Require standard DMA specifiers. - Remove clock specifiers from DT where they were only needed for reset. - Remove legacy DMA specifier properties. I anticipate merging this whole series into the Tegra and arm-soc trees as its own branch, due to internal dependencies. This branch will be stable and can then be merged into any other subsystem trees should any conflicts arise. This series depends on Peter's Tegra clock driver rework, available at git://nv-tegra.nvidia.com/user/pdeschrijver/linux tegra-clk-tegra124-0 (or whatever version of that gets included in 3.14) Cc: ac100 at lists.launchpad.net Cc: Alan Stern <stern at rowland.harvard.edu> Cc: alsa-devel at alsa-project.org Cc: Bjorn Helgaas <bhelgaas at google.com> Cc: Dan Williams <dan.j.williams at intel.com> Cc: David Airlie <airlied at linux.ie> Cc: devel at driverdev.osuosl.org Cc: devicetree at vger.kernel.org Cc: Dmitry Torokhov <dmitry.torokhov at gmail.com> Cc: Dmitry Torokhov <dtor at mail.ru> Cc: dri-devel at lists.freedesktop.org Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org> Cc: Ian Campbell <ijc+devicetree at hellion.org.uk> Cc: Julian Andres Klode <jak at jak-linux.org> Cc: Liam Girdwood <lgirdwood at gmail.com> Cc: linux-arm-kernel at lists.infradead.org Cc: linux-i2c at vger.kernel.org Cc: linux-input at vger.kernel.org Cc: linux-pci at vger.kernel.org Cc: linux-serial at vger.kernel.org Cc: linux-spi at vger.kernel.org Cc: linux-tegra at vger.kernel.org Cc: linux-usb at vger.kernel.org Cc: Marc Dietrich <marvin24 at gmx.de> Cc: Mark Brown <broonie at kernel.org> Cc: Mark Rutland <mark.rutland at arm.com> Cc: Mike Turquette <mturquette at linaro.org> Cc: Pawel Moll <pawel.moll at arm.com> Cc: pdeschrijver at nvidia.com Cc: Rob Herring <rob.herring at calxeda.com> Cc: Terje Bergstr?m <tbergstrom at nvidia.com> Cc: treding at nvidia.com Cc: Wolfram Sang <wsa at the-dreams.de> Stephen Warren (31): ARM: tegra: add missing clock documentation to DT bindings ARM: tegra: document reset properties in DT bindings ARM: tegra: document use of standard DMA DT bindings ARM: tegra: update DT files to add reset properties ARM: tegra: update DT files to add DMA properties ARM: tegra: select the reset framework clk: tegra: implement a reset driver pci: tegra: use reset framework drm/tegra: use reset framework ARM: tegra: pass reset to tegra_powergate_sequence_power_up() dma: add channel request API that supports deferred probe dma: tegra: use reset framework dma: tegra: register as an OF DMA controller ASoC: dmaengine: support deferred probe for DMA channels ASoC: dmaengine: add custom DMA config to snd_dmaengine_pcm_config ASoC: tegra: use reset framework ASoC: tegra: call pm_runtime APIs around register accesses ASoC: tegra: allocate AHUB FIFO during probe() not startup() ASoC: tegra: convert to standard DMA DT bindings i2c: tegra: use reset framework staging: nvec: use reset framework spi: tegra: use reset framework spi: tegra: convert to standard DMA DT bindings serial: tegra: use reset framework serial: tegra: convert to standard DMA DT bindings Input: tegra-kbc - use reset framework USB: EHCI: tegra: use reset framework ARM: tegra: remove legacy clock entries from DT ARM: tegra: remove legacy DMA entries from DT clk: tegra: remove legacy reset APIs clk: tegra: remove bogus PCIE_XCLK .../bindings/arm/tegra/nvidia,tegra20-pmc.txt | 1 + .../bindings/clock/nvidia,tegra114-car.txt | 4 + .../bindings/clock/nvidia,tegra124-car.txt | 4 + .../bindings/clock/nvidia,tegra20-car.txt | 4 + .../bindings/clock/nvidia,tegra30-car.txt | 4 + .../devicetree/bindings/dma/tegra20-apbdma.txt | 9 ++ .../bindings/gpu/nvidia,tegra20-host1x.txt | 124 +++++++++++++++ .../devicetree/bindings/i2c/nvidia,tegra20-i2c.txt | 27 +++- .../bindings/input/nvidia,tegra20-kbc.txt | 9 ++ .../bindings/mmc/nvidia,tegra20-sdhci.txt | 9 ++ .../devicetree/bindings/nvec/nvidia,nvec.txt | 12 ++ .../bindings/pci/nvidia,tegra20-pcie.txt | 28 ++-- .../devicetree/bindings/pwm/nvidia,tegra20-pwm.txt | 9 ++ .../devicetree/bindings/rtc/nvidia,tegra20-rtc.txt | 3 + .../bindings/serial/nvidia,tegra20-hsuart.txt | 19 ++- .../bindings/sound/nvidia,tegra-audio-alc5632.txt | 7 +- .../bindings/sound/nvidia,tegra-audio-rt5640.txt | 7 +- .../bindings/sound/nvidia,tegra-audio-wm8753.txt | 7 +- .../bindings/sound/nvidia,tegra-audio-wm8903.txt | 7 +- .../bindings/sound/nvidia,tegra-audio-wm9712.txt | 7 +- .../bindings/sound/nvidia,tegra20-ac97.txt | 20 ++- .../bindings/sound/nvidia,tegra20-i2s.txt | 19 ++- .../bindings/sound/nvidia,tegra30-ahub.txt | 54 +++++-- .../bindings/sound/nvidia,tegra30-i2s.txt | 11 +- .../bindings/spi/nvidia,tegra114-spi.txt | 24 ++- .../bindings/spi/nvidia,tegra20-sflash.txt | 20 ++- .../bindings/spi/nvidia,tegra20-slink.txt | 20 ++- .../bindings/timer/nvidia,tegra20-timer.txt | 3 + .../bindings/timer/nvidia,tegra30-timer.txt | 3 + .../bindings/usb/nvidia,tegra20-ehci.txt | 7 +- arch/arm/boot/dts/tegra114.dtsi | 142 ++++++++++++++--- arch/arm/boot/dts/tegra20-paz00.dts | 2 + arch/arm/boot/dts/tegra20.dtsi | 132 ++++++++++++++-- arch/arm/boot/dts/tegra30.dtsi | 171 +++++++++++++++++---- arch/arm/mach-tegra/Kconfig | 2 + arch/arm/mach-tegra/powergate.c | 8 +- drivers/clk/tegra/clk-periph-gate.c | 22 --- drivers/clk/tegra/clk-periph.c | 40 ----- drivers/clk/tegra/clk-tegra114.c | 3 +- drivers/clk/tegra/clk-tegra124.c | 2 +- drivers/clk/tegra/clk-tegra20.c | 9 +- drivers/clk/tegra/clk-tegra30.c | 10 +- drivers/clk/tegra/clk.c | 55 ++++++- drivers/clk/tegra/clk.h | 3 +- drivers/dma/acpi-dma.c | 12 +- drivers/dma/dmaengine.c | 44 +++++- drivers/dma/of-dma.c | 12 +- drivers/dma/tegra20-apb-dma.c | 49 +++++- drivers/gpu/drm/tegra/Kconfig | 1 + drivers/gpu/drm/tegra/dc.c | 9 +- drivers/gpu/drm/tegra/drm.h | 3 + drivers/gpu/drm/tegra/gr3d.c | 22 ++- drivers/gpu/drm/tegra/hdmi.c | 14 +- drivers/i2c/busses/i2c-tegra.c | 13 +- drivers/input/keyboard/tegra-kbc.c | 13 +- drivers/pci/host/pci-tegra.c | 52 +++++-- drivers/spi/Kconfig | 3 + drivers/spi/spi-tegra114.c | 66 ++++---- drivers/spi/spi-tegra20-sflash.c | 18 ++- drivers/spi/spi-tegra20-slink.c | 66 ++++---- drivers/staging/nvec/nvec.c | 11 +- drivers/staging/nvec/nvec.h | 5 +- drivers/tty/serial/serial-tegra.c | 86 +++++------ drivers/usb/host/ehci-tegra.c | 14 +- include/dt-bindings/clock/tegra20-car.h | 2 +- include/dt-bindings/clock/tegra30-car.h | 2 +- include/linux/clk/tegra.h | 7 - include/linux/dmaengine.h | 7 + include/linux/of_dma.h | 9 +- include/linux/tegra-powergate.h | 4 +- include/sound/dmaengine_pcm.h | 6 + sound/soc/soc-generic-dmaengine-pcm.c | 82 +++++++--- sound/soc/tegra/Kconfig | 2 + sound/soc/tegra/tegra20_ac97.c | 11 -- sound/soc/tegra/tegra20_i2s.c | 20 +-- sound/soc/tegra/tegra30_ahub.c | 125 +++++++++------ sound/soc/tegra/tegra30_ahub.h | 11 +- sound/soc/tegra/tegra30_i2s.c | 97 ++++++------ sound/soc/tegra/tegra30_i2s.h | 3 + sound/soc/tegra/tegra_pcm.c | 17 +- sound/soc/tegra/tegra_pcm.h | 5 + 81 files changed, 1448 insertions(+), 558 deletions(-) -- 1.8.1.5
