On Wed, Jun 29, 2016 at 10:17:46AM +0100, Jon Hunter wrote: > The Display Port Auxiliary (DPAUX) channel pads can be shared with an > internal I2C controller. Add pinctrl support for these pads so that the > I2C controller can request and use these pads. > > This series has been tested with Thierry's patches for correcting the > parent clock for the DPAUX devices [0]. > > Changes from V1: > - Updated dt node names to use '-' instead of '_' per Rob H's feedback. > - Updated commit message and dt-binding description for 'i2c-bus' node > per Wolfram's feedback. > - Note the pinctrl patch to add a helper function for freeing mappings [1] > is not included in this latest version of the series as this has already > been picked up by Linus W. > > Changes from initial RFC: > - Dropped patches for adding sor-safe clocks to DPAUX in favour of the > patches from Thierry [0]. > - Split the DPAUX function to enable the DPAUX pads into two functions: > one for turning on and one for turning off the pads. > - Updated the description for the 'i2c-bus' node based upon Mark R's > feedback. > - Dropped the second test if the i2c-core when checking for the presence > of the 'i2c-bus' node based upon Thierry's feedback. > - Removed depedency on CONFIG_PINCTRL in the DPAUX driver in favour of > using #ifdef's per Thierry's feedback (note by removing the dependency > on CONFIG_PINCTRL I had to use #ifdefs as all the structures, function > tables, and functions may not be defined). > - Updated SOR power partition device-tree node to include all clocks and > resets as described in the Tegra210 TRM. > > [0] http://marc.info/?l=linux-tegra&m=146667915802019&w=2 > [1] http://marc.info/?l=linux-tegra&m=146669759407988&w=2 > > Jon Hunter (11): > soc/tegra: pmc: Initialise resets associated with a power partition > drm/tegra: Clean-up if probing DPAUX fails > drm/tegra: Add helper functions for setting up DPAUX pads > dt-bindings: display: Update Tegra DPAUX documentation > drm/tegra: Prepare DPAUX for supporting generic PM domains > dt-bindings: i2c: Add support for 'i2c-bus' subnode > i2c: core: Add support for 'i2c-bus' subnode > dt-bindings: Add bindings for Tegra DPAUX pinctrl driver > drm/tegra: Add pinctrl support for DPAUX > arm64: tegra: Add SOR power-domain node > arm64: tegra: Add DPAUX pinctrl bindings > > .../display/tegra/nvidia,tegra20-host1x.txt | 12 +- > Documentation/devicetree/bindings/i2c/i2c.txt | 8 + > .../pinctrl/nvidia,tegra124-dpaux-padctl.txt | 60 ++++++ > arch/arm64/boot/dts/nvidia/tegra210.dtsi | 78 +++++++ > drivers/gpu/drm/tegra/dpaux.c | 239 +++++++++++++++++---- > drivers/i2c/i2c-core.c | 10 +- > drivers/soc/tegra/pmc.c | 18 +- > 7 files changed, 373 insertions(+), 52 deletions(-) > create mode 100644 Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-dpaux-padctl.txt Applied, thanks. Thierry
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