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i2c: gpio: add bus recovery support 

Signed-off-by: Jan Luebbe <jluebbe@debian.org>
This commit is contained in:
Jan Luebbe 2015-07-30 16:42:49 +02:00
parent 39e4db8376
commit 7a526685a8
1 changed files with 10 additions and 0 deletions
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10
drivers/i2c/busses/i2c-gpio.c
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@ -10,6 +10,7 @@
#include <common.h>
#include <driver.h>
#include <malloc.h>
#include <i2c/i2c.h>
#include <i2c/i2c-algo-bit.h>
#include <i2c/i2c-gpio.h>
@ -187,6 +188,13 @@ static int i2c_gpio_probe(struct device_d *dev)
adap->algo_data = bit_data;
adap->dev.parent = dev;
adap->dev.device_node = dev->device_node;
adap->bus_recovery_info = xzalloc(sizeof(*adap->bus_recovery_info));
adap->bus_recovery_info->scl_gpio = pdata->scl_pin;
adap->bus_recovery_info->sda_gpio = pdata->sda_pin;
adap->bus_recovery_info->get_sda = i2c_get_sda_gpio_value;
adap->bus_recovery_info->get_scl = i2c_get_scl_gpio_value;
adap->bus_recovery_info->set_scl = i2c_set_scl_gpio_value;
adap->bus_recovery_info->recover_bus = i2c_generic_scl_recovery;
adap->nr = dev->id;
ret = i2c_bit_add_numbered_bus(adap);
@ -201,10 +209,12 @@ static int i2c_gpio_probe(struct device_d *dev)
return 0;
err_add_bus:
free(adap->bus_recovery_info);
gpio_free(pdata->scl_pin);
err_request_scl:
gpio_free(pdata->sda_pin);
err_request_sda:
free(priv);
return ret;
}