[PATCH v4 0/9] Use MFD framework for SGI IOC3 drivers

From: Thomas Bogendoerfer
Date: Fri Aug 09 2019 - 06:32:49 EST


SGI IOC3 ASIC includes support for ethernet, PS2 keyboard/mouse,
NIC (number in a can), GPIO and a byte bus. By attaching a
SuperIO chip to it, it also supports serial lines and a parallel
port. The chip is used on a variety of SGI systems with different
configurations. This patchset moves code out of the network driver,
which doesn't belong there, into its new place a MFD driver and
specific platform drivers for the different subfunctions.

Changes in v4:
- added w1 drivers to the series after merge in 5.3 failed because
of no response from maintainer and other parts of this series
won't work without that drivers
- moved ip30 systemboard support to the ip30 series, which will
deal with rtc oddity Lee found
- converted to use devm_platform_ioremap_resource
- use PLATFORM_DEVID_AUTO for serial, ethernet and serio in mfd driver
- fixed reverse christmas order in ioc3-eth.c
- formating issue found by Lee
- re-worked irq request/free in serio driver to avoid crashes during
probe/remove

Changes in v3:
- use 1-wire subsystem for handling proms
- pci-xtalk driver uses prom information to create PCI subsystem
ids for use in MFD driver
- changed MFD driver to only use static declared mfd_cells
- added IP30 system board setup to MFD driver
- mac address is now read from ioc3-eth driver with nvmem framework

Changes in v2:
- fixed issue in ioc3kbd.c reported by Dmitry Torokhov
- merged IP27 RTC removal and 8250 serial driver addition into
main MFD patch to keep patches bisectable

Thomas Bogendoerfer (9):
w1: add 1-wire master driver for IP block found in SGI ASICs
w1: add DS2501, DS2502, DS2505 EPROM device driver
nvmem: core: add nvmem_device_find
MIPS: PCI: refactor ioc3 special handling
MIPS: PCI: use information from 1-wire PROM for IOC3 detection
MIPS: SGI-IP27: remove ioc3 ethernet init
mfd: ioc3: Add driver for SGI IOC3 chip
MIPS: SGI-IP27: fix readb/writeb addressing
Input: add IOC3 serio driver

arch/mips/include/asm/mach-ip27/mangle-port.h | 4 +-
arch/mips/include/asm/pci/bridge.h | 1 +
arch/mips/include/asm/sn/ioc3.h | 356 ++---
arch/mips/pci/pci-xtalk-bridge.c | 296 ++--
arch/mips/sgi-ip27/ip27-console.c | 5 +-
arch/mips/sgi-ip27/ip27-init.c | 13 -
arch/mips/sgi-ip27/ip27-timer.c | 20 -
arch/mips/sgi-ip27/ip27-xtalk.c | 38 +-
drivers/input/serio/Kconfig | 10 +
drivers/input/serio/Makefile | 1 +
drivers/input/serio/ioc3kbd.c | 163 +++
drivers/mfd/Kconfig | 13 +
drivers/mfd/Makefile | 1 +
drivers/mfd/ioc3.c | 586 ++++++++
drivers/net/ethernet/sgi/Kconfig | 4 +-
drivers/net/ethernet/sgi/ioc3-eth.c | 1936 ++++++++++---------------
drivers/nvmem/core.c | 62 +-
drivers/rtc/rtc-m48t35.c | 11 +
drivers/tty/serial/8250/8250_ioc3.c | 98 ++
drivers/tty/serial/8250/Kconfig | 11 +
drivers/tty/serial/8250/Makefile | 1 +
drivers/w1/masters/Kconfig | 9 +
drivers/w1/masters/Makefile | 1 +
drivers/w1/masters/sgi_w1.c | 130 ++
drivers/w1/slaves/Kconfig | 6 +
drivers/w1/slaves/Makefile | 1 +
drivers/w1/slaves/w1_ds250x.c | 293 ++++
include/linux/nvmem-consumer.h | 9 +
include/linux/platform_data/sgi-w1.h | 15 +
include/linux/w1.h | 2 +
30 files changed, 2522 insertions(+), 1574 deletions(-)
create mode 100644 drivers/input/serio/ioc3kbd.c
create mode 100644 drivers/mfd/ioc3.c
create mode 100644 drivers/tty/serial/8250/8250_ioc3.c
create mode 100644 drivers/w1/masters/sgi_w1.c
create mode 100644 drivers/w1/slaves/w1_ds250x.c
create mode 100644 include/linux/platform_data/sgi-w1.h

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2.13.7