On Tue, 26 May 2020 at 06:19, Stefan Roese sr@denx.de wrote:
From: Suneel Garapati sgarapati@marvell.com
Add support for GPIO controllers found on Octeon II/III and Octeon TX TX2 SoC platforms.
Signed-off-by: Aaron Williams awilliams@marvell.com Signed-off-by: Suneel Garapati sgarapati@marvell.com Signed-off-by: Stefan Roese sr@denx.de Cc: Simon Glass sjg@chromium.org Cc: Daniel Schwierzeck daniel.schwierzeck@gmail.com Cc: Aaron Williams awilliams@marvell.com Cc: Chandrakala Chavva cchavva@marvell.com
v2 (Stefan):
- Removed #ifdef's for Octeon vs OcteonTX/TX2 completely The differentiation is now made via driver data / compatible string
RFC -> v1 (Stefan)
- Separated this patch from the OcteonTX/TX2 RFC patch series into a single patch. This is useful, as the upcoming MIPS Octeon support will use this GPIO driver.
- Added MIPS Octeon II/III support (big endian). Rename driver and its function names from "octeontx" to "octeon" to better match all Octeon platforms.
- Moved from union to defines / bitmasks. This makes the driver usage on little- and big-endian platforms much easier.
- Used clrbits_64() instead of clrbits_le64() and friends to support usage on little- and big-endian systems
- Removed dev->req_seq assignment
- Enhanced Kconfig text
- Rewrote GPIO_BIT macro
- Dropped many macros to calculate the registers offsets and implemented simple functions for this (easier to read)
- Used GENMASK_ULL and FIELD_GET helpers
- Minor cosmetic changes (dropped brackets etc)
- Reword commit text and subject
drivers/gpio/Kconfig | 10 ++ drivers/gpio/Makefile | 1 + drivers/gpio/octeon_gpio.c | 253 +++++++++++++++++++++++++++++++++++++ 3 files changed, 264 insertions(+) create mode 100644 drivers/gpio/octeon_gpio.c
Reviewed-by: Simon Glass sjg@chromium.org