13 Jan
2015
13 Jan
'15
3:50 p.m.
On 12 January 2015 at 19:44, Masahiro Yamada yamada.m@jp.panasonic.com wrote:
This commit adds on-chip I2C driver used on some old Panasonic UniPhier SoCs.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com Reviewed-by: Simon Glass sjg@chromium.org Acked-by: Simon Glass sjg@chromium.org Acked-by: Heiko Schocher hs@denx.de
Changes in v6:
- Pass (struct uniphier_fi2c_regs*) to reset_bus() and check_device_busy()
- Add "static" to issue_stop()
- Remove an extra blank line
Applied to u-boot-dm, thanks!
Changes in v5:
- Drop unnecessary __packed
Changes in v4:
- Use a structure instead of macros for register access
Changes in v3: None Changes in v2:
- Fix a typo. s/freqency/frequency/
- Add some comments to explain the formula calculating wait time.
- add comments on every register
- skip stop condition if the next message is read
drivers/i2c/Kconfig | 8 ++ drivers/i2c/Makefile | 1 + drivers/i2c/i2c-uniphier.c | 239 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 248 insertions(+) create mode 100644 drivers/i2c/i2c-uniphier.c