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i2c: Rename CONFIG_SYS_I2C to CONFIG_SYS_I2C_LEGACY

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It is quite confusing that CONFIG_SYS_I2C selects the legacy I2C and
CONFIG_DM_I2C selects the current I2C. The deadline to migrate I2C is less
than a year away.

Also we want to have a CONFIG_I2C for U-Boot proper just like we have
CONFIG_SPL_I2C for SPL, so we can simplify the Makefile rules.

Rename this symbol so it is clear it is going away.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Simon Glass
2021-07-10 21:14:32 -06:00
committed by Tom Rini
parent 9ca00684db
commit 69d9eda4da
110 changed files with 133 additions and 130 deletions
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README
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@@ -1461,9 +1461,12 @@ The following options need to be configured:
In such cases CONFIG_GPIO_LED_INVERTED_TABLE may be defined
with a list of GPIO LEDs that have inverted polarity.
- I2C Support: CONFIG_SYS_I2C
- I2C Support: CONFIG_SYS_I2C_LEGACY
This enable the NEW i2c subsystem, and will allow you to use
Note: This is deprecated in favour of driver model. Use
CONFIG_DM_I2C instead.
This enable the legacy i2c subsystem, and will allow you to use
i2c commands at the u-boot command line (as long as you set
CONFIG_SYS_I2C_SOFT_SPEED and CONFIG_SYS_I2C_SOFT_SLAVE
for defining speed and slave address