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i2c: Add option to send start condition after deblocking

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Add option to send start condition after deblocking SDA.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Marek Vasut
2020-02-07 16:57:51 +01:00
committed by Heiko Schocher
parent 7231522a5e
commit a191728633
2 changed files with 23 additions and 4 deletions
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4
include/i2c.h
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@@ -339,12 +339,14 @@ int i2c_deblock(struct udevice *bus);
* @sda_pin: SDA GPIO
* @scl_pin: SCL GPIO
* @scl_count: Number of SCL clock cycles generated to deblock SDA
* @start_count:Number of I2C start conditions sent after deblocking SDA
* @delay: Delay between SCL clock line changes
* @return 0 if OK, -ve on error
*/
struct gpio_desc;
int i2c_deblock_gpio_loop(struct gpio_desc *sda_pin, struct gpio_desc *scl_pin,
unsigned int scl_count, unsigned int delay);
unsigned int scl_count, unsigned int start_count,
unsigned int delay);
/**
* struct dm_i2c_ops - driver operations for I2C uclass