Hi all, The mcp251xfd allows two pins to be configured as GPIOs. This series adds support for this feature. The GPIO functionality is controlled with the IOCON register which has an erratum. The second patch is to work around this erratum. I am not sure if the place for the check and workaround in mcp251xfd_regmap_crc_write is correct or if the check could be bypassed with a direct call to mcp251xfd_regmap_crc_gather_write. If you have a better suggestion where to add the check please let me know. Patch 1-3 from https://lore.kernel.org/linux-can/20240429-mcp251xfd-runtime_pm-v1-0-c26a93a66544@xxxxxxxxxxxxxx/ Patch 4 is the fix/workaround for the aforementioned erratum Patch 5 adds the gpio support Patch 6 updates dt-binding --- Changes in v2: - picked Marcs patches from https://lore.kernel.org/linux-can/20240429-mcp251xfd-runtime_pm-v1-0-c26a93a66544@xxxxxxxxxxxxxx/ - Drop regcache - Add pm_runtime in mcp251xfd_gpio_request/mcp251xfd_gpio_free - Implement mcp251xfd_gpio_get_multiple/mcp251xfd_gpio_set_multiple - Move check for rx_int/gpio conflict to mcp251xfd_gpio_request - Link to v1: https://lore.kernel.org/r/20240417-mcp251xfd-gpio-feature-v1-0-bc0c61fd0c80@xxxxxxxxxxxxxxx --- Gregor Herburger (3): can: mcp251xfd: mcp251xfd_regmap_crc_write(): workaround for errata 5 can: mcp251xfd: add gpio functionality dt-bindings: can: mcp251xfd: add gpio-controller property Marc Kleine-Budde (3): can: mcp251xfd: properly indent labels can: mcp251xfd: move mcp251xfd_timestamp_start()/stop() into mcp251xfd_chip_start/stop() can: mcp251xfd: move chip sleep mode into runtime pm .../bindings/net/can/microchip,mcp251xfd.yaml | 5 + drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 310 +++++++++++++++++---- drivers/net/can/spi/mcp251xfd/mcp251xfd-dump.c | 2 +- drivers/net/can/spi/mcp251xfd/mcp251xfd-regmap.c | 31 ++- drivers/net/can/spi/mcp251xfd/mcp251xfd-tef.c | 2 +- .../net/can/spi/mcp251xfd/mcp251xfd-timestamp.c | 7 +- drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c | 2 +- drivers/net/can/spi/mcp251xfd/mcp251xfd.h | 7 + 8 files changed, 303 insertions(+), 63 deletions(-) --- base-commit: 1fdad13606e104ff103ca19d2d660830cb36d43e change-id: 20240417-mcp251xfd-gpio-feature-29a1bf6acb54 Best regards, -- TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany Amtsgericht München, HRB 105018 Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider https://www.tq-group.com/
