From: Stephen Warren swarren@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@lists.launchpad.net Cc: Alan Stern stern@rowland.harvard.edu Cc: alsa-devel@alsa-project.org Cc: Bjorn Helgaas bhelgaas@google.com Cc: Dan Williams dan.j.williams@intel.com Cc: David Airlie airlied@linux.ie Cc: devel@driverdev.osuosl.org Cc: devicetree@vger.kernel.org Cc: Dmitry Torokhov dmitry.torokhov@gmail.com Cc: Dmitry Torokhov dtor@mail.ru Cc: dri-devel@lists.freedesktop.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Ian Campbell ijc+devicetree@hellion.org.uk Cc: Julian Andres Klode jak@jak-linux.org Cc: Liam Girdwood lgirdwood@gmail.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-i2c@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: linux-pci@vger.kernel.org Cc: linux-serial@vger.kernel.org Cc: linux-spi@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: Marc Dietrich marvin24@gmx.de Cc: Mark Brown broonie@kernel.org Cc: Mark Rutland mark.rutland@arm.com Cc: Mike Turquette mturquette@linaro.org Cc: Pawel Moll pawel.moll@arm.com Cc: pdeschrijver@nvidia.com Cc: Rob Herring rob.herring@calxeda.com Cc: Terje Bergström tbergstrom@nvidia.com Cc: treding@nvidia.com Cc: Wolfram Sang wsa@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(-)