On 24/08/2013 23:32, Boris BREZILLON wrote:
Hello, This patch series is an attempt to add support for generic pin config syntax to at91 pinctrl driver. My primary goal is to add support for output configuration from dt definition. This is needed to fully move at91rm9200ek board to dt (other boards may have the same needs). This board use a pin to drive an external switch which select between 2 functionnalities: - mmc interface - spi interface The pin level is currently configured in the board init (init_machine) function based on user config choices (CONFIG_MTD_AT91_DATAFLASH_CARD). Instead of adding a new flag to the current (native) pin config binding, I tried to add support for the generic pin config used by some pinctrl drivers (i.e. rockchip). Is this the right way to do this or should I add a new at91 native flags for output config (OUTPUT_HIGH/LOW) ? The second patch introduce a new config parameter to add a glitch filter on a specific pin.
The first patch, not the second.
Glitch filter is similar to bounce filter (or debounce) but with a smaller delay (expressed in nsecs ?). I'm not sure this is the right approach. Maybe we should reuse the debounce parameter and add a flag to specify the delay unit (usec or nsec). What do you think ? The third patch migrate sama5 dt boards to the new generic config syntax. Please feel free to share your thoughts. Best Regards, Boris Boris BREZILLON (3): pinctrl: add new generic pinconf config for deglitch filter pinctrl: at91: add support for generic pinconf ARM: at91/dt: move sama5 to generic pinconf .../bindings/pinctrl/atmel,at91-pinctrl.txt | 43 ++- .../bindings/pinctrl/pinctrl-bindings.txt | 1 + arch/arm/boot/dts/sama5d3.dtsi | 363 ++++++++++---------- arch/arm/boot/dts/sama5d3xdm.dtsi | 2 +- arch/arm/boot/dts/sama5d3xmb.dtsi | 12 +- drivers/pinctrl/Kconfig | 2 +- drivers/pinctrl/pinconf-generic.c | 2 + drivers/pinctrl/pinctrl-at91.c | 265 +++++++++++++- include/linux/pinctrl/pinconf-generic.h | 5 + 9 files changed, 494 insertions(+), 201 deletions(-)
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