This patch set adds reset controller support for the Nuvoton NPCM Baseboard Management Controller (BMC). Apart of controlling all NPCM BMC reset module lines the NPCM reset driver support NPCM BMC software reset to restarting the NPCM BMC. Supporting NPCM USB-PHY reset as follow: NPCM BMC USB-PHY connected to two modules USB device (UDC) and USB host. If we will restart the USB-PHY at the UDC probe and later the USB host probe will restart USB-PHY again it will disable the UDC and vice versa. The solution is to reset the USB-PHY at the reset probe stage before the UDC and the USB host are initializing. NPCM reset driver tested on NPCM750 evaluation board. Addressed comments from:. - Philipp Zabel : https://lkml.org/lkml/2019/10/29/712 https://lkml.org/lkml/2019/10/29/713 https://lkml.org/lkml/2019/10/29/731 - kbuild test robot : https://lkml.org/lkml/2019/10/30/29 Changes since version 2: - Remove unnecessary details in the dt-binding documentation. - Modify device tree binding constants. - initialize gcr_regmap parameter to NULL. - Add of_xlate support. - Enable NPCM reset driver by default. - Remove unused header include. - Using devm_platform_ioremap_resource instead of_address_to_resource and devm_ioremap_resource. - Modify number of resets. - Using devm_reset_controller_register instead reset_controller_register. - Remove unnecessary probe print. Changes since version 1: - Check if gcr_regmap parameter initialized before using it. Tomer Maimon (3): dt-binding: reset: add NPCM reset controller documentation dt-bindings: reset: Add binding constants for NPCM7xx reset controller reset: npcm: add NPCM reset controller driver .../bindings/reset/nuvoton,npcm-reset.txt | 32 ++ drivers/reset/Kconfig | 7 + drivers/reset/Makefile | 1 + drivers/reset/reset-npcm.c | 281 ++++++++++++++++++ .../dt-bindings/reset/nuvoton,npcm7xx-reset.h | 91 ++++++ 5 files changed, 412 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt create mode 100644 drivers/reset/reset-npcm.c create mode 100644 include/dt-bindings/reset/nuvoton,npcm7xx-reset.h -- 2.22.0 =========================================================================================== The privileged confidential information contained in this email is intended for use only by the addressees as indicated by the original sender of this email. If you are not the addressee indicated in this email or are not responsible for delivery of the email to such a person, please kindly reply to the sender indicating this fact and delete all copies of it from your computer and network server immediately. Your cooperation is highly appreciated. It is advised that any unauthorized use of confidential information of Nuvoton is strictly prohibited; and any information in this email irrelevant to the official business of Nuvoton shall be deemed as neither given nor endorsed by Nuvoton.
