Set of patches to support getting and de/asserting a list (array) of reset controllers available with the device. This series also contains reset controls patches for dwc3-of-simple and tegra pmc drivers. A small patch is added in this series to correctly re-order the resource handling in dwc3_of_simple_remove(). The series is tested on torvald's master branch the device tree patches to enable usb on db820c. Changes since v3: - Squashed of_reset_control_get_count() patch in the second patch that adds the reset control array APIs. - The error path after getting count through of_reset_control_get_count() now returns NULL pointer in case when 'optional' flag is true. - Added code in reset_control_array_assert() to deassert the already asserted resets in the error case. - Using of_reset_control_array_get_optional_exclusive() in dwc3 patch to request the reset control array. - Added a patch to fix the order in which resources are handled in dwc3_of_simple_remove() path. - Added tegra_powergate->reset to take care of single reset control passed from the client drivers. Changes since v2: - Addressed comments to make APIs inline with gpiod API. - Moved number of reset controls in 'struct reset_control_array' so that the footprint is reduced. - of_reset_control_array_get() and devm_reset_control_array_get() now return pointer to the newly created reset control array. - Added comments to mention that the reset control array APIs don't guarantee any particular order when handling the reset controls. - Dropped 'name' from reset_control_array' since the interface is meant for a bunch of anonymous resets that can all be asserted or deasserted in arbitrary order. - Fixed returns for APIs reported by kbuild. - Fixed 'for' clause guards reported by kbuild. Changes since v1: - Addressed comment for error handling in of_reset_control_get_count() - Added patch to manage reset controller array. - Rebased dwc3-of-simple changes based on the new set of APIs for reset control array. - Added a patch for soc/tegra/pmc driver to use the new set of reset control array APIs. Vivek Gautam (4): usb: dwc3: of-simple: Re-order resource handling in remove reset: Add APIs to manage array of resets usb: dwc3: of-simple: Add support to get resets for the device soc/tegra: pmc: Use the new reset APIs to manage reset controllers drivers/reset/core.c | 204 ++++++++++++++++++++++++++++++++++++++ drivers/soc/tegra/pmc.c | 91 ++++++----------- drivers/usb/dwc3/dwc3-of-simple.c | 29 +++++- include/linux/reset.h | 93 +++++++++++++++++ 4 files changed, 354 insertions(+), 63 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
