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List: linux-gpio
Subject: Re: [PATCH V2 00/11] Add support for Tegra DPAUX pinctrl
From: Thierry Reding <thierry.reding () gmail ! com>
Date: 2016-06-30 13:25:09
Message-ID: 20160630132509.GD26758 () ulmo ! ba ! sec
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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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