dm: Expand and complete Kconfig in drivers/
Expand the help messages for each driver. Add missing Kconfig for I2C,
SPI flash and thermal.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 202ea5d..2cc776c 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -2,8 +2,16 @@
bool "Enable Driver Model for I2C drivers"
depends on DM
help
- If you want to use driver model for I2C drivers, say Y.
- To use legacy I2C drivers, say N.
+ Enable driver model for I2C. This SPI flash interface
+ (spi_flash_probe(), spi_flash_write(), etc.) is then
+ implemented by the SPI flash uclass. There is one standard
+ SPI flash driver which knows how to probe most chips
+ supported by U-Boot. The uclass interface is defined in
+ include/spi_flash.h, but is currently fully compatible
+ with the old interface to avoid confusion and duplication
+ during the transition parent. SPI and SPI flash must be
+ enabled together (it is not possible to use driver model
+ for one and not the other).
config SYS_I2C_UNIPHIER
bool "UniPhier I2C driver"