[PATCH v2 00/15] ARM: davinci: step towards removing at24_platform_data

Bartosz Golaszewski
2018-06-26T10:23:22Z

Since I took over maintainership of the at24 driver I've been working
towards removing at24_platform_data in favor for device properties.

DaVinci is the only platform that's still using it - all other users
have already been converted.

One of the obstacles in case of DaVinci is removing the setup() callback
from the pdata struct, the only user of which are some davinci boards.

Most boards use the EEPROM to store the MAC address. This series adds
support for cell lookups to the nvmem framework, registers relevant
cells for all users, converts the davinci_emac driver to using them
and replaces at24_platform_data with device properties.

The only board that's still using this callback is now mityomapl138.
Unfortunately it stores more info in EEPROM than just the MAC address
and will require some more work. Unfortunately I don't have access
to this board so I can't test any actual solutions on a live hardware.

Tested on a dm365-evm board.

v1 -> v2:
- for backward compatiblity: fall back to using of_get_mac_address() if
we can't get an nvmem cell in patch 7
- add patch 15 which removes dead code

Bartosz Golaszewski (15):
nvmem: add support for cell lookups
ARM: davinci: dm365-evm: use nvmem lookup for mac address
ARM: davinci: dm644-evm: use nvmem lookup for mac address
ARM: davinci: dm646x-evm: use nvmem lookup for mac address
ARM: davinci: da830-evm: use nvmem lookup for mac address
ARM: davinci: mityomapl138: add nvmem cells lookup entries
net: davinci_emac: use nvmem to retrieve the mac address
ARM: davinci: mityomapl138: don't read the MAC address from machine
code
ARM: davinci: dm365-evm: use device properties for at24 eeprom
ARM: davinci: da830-evm: use device properties for at24 eeprom
ARM: davinci: dm644x-evm: use device properties for at24 eeprom
ARM: davinci: dm646x-evm: use device properties for at24 eeprom
ARM: davinci: sffsdr: fix the at24 eeprom device name
ARM: davinci: sffsdr: use device properties for at24 eeprom
ARM: davinci: remove dead code

arch/arm/mach-davinci/board-da830-evm.c | 25 +++++++---
arch/arm/mach-davinci/board-dm365-evm.c | 25 +++++++---
arch/arm/mach-davinci/board-dm644x-evm.c | 24 ++++++---
arch/arm/mach-davinci/board-dm646x-evm.c | 25 +++++++---
arch/arm/mach-davinci/board-mityomapl138.c | 30 +++++++++---
arch/arm/mach-davinci/board-sffsdr.c | 13 +++--
arch/arm/mach-davinci/common.c | 15 ------
drivers/net/ethernet/ti/davinci_emac.c | 33 +++++++++----
drivers/nvmem/core.c | 57 +++++++++++++++++++++-
include/linux/davinci_emac.h | 2 -
include/linux/nvmem-consumer.h | 6 +++
include/linux/nvmem-provider.h | 6 +++
12 files changed, 186 insertions(+), 75 deletions(-)

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2.17.1