static int i2c_init(unsigned bus)
{
unsigned gsbi_id = bus;
qup_config_t *qup_config;
switch (gsbi_id) {
case GSBI_ID_1:
qup_config = &gsbi1_qup_config;
break;
case GSBI_ID_4:
qup_config = &gsbi4_qup_config;
break;
case GSBI_ID_7:
qup_config = &gsbi7_qup_config;
break;
default:
printk(BIOS_ERR, "QUP configuration not defind for GSBI%d.\n",
gsbi_id);
return 1;
}
if (qup_config->initialized)
return 0;
if (gsbi_init(gsbi_id, GSBI_PROTO_I2C_ONLY)) {
printk(BIOS_ERR, "failed to initialize gsbi\n");
return 1;
}
if (qup_init(gsbi_id, qup_config)) {
printk(BIOS_ERR, "failed to initialize qup\n");
return 1;
}
if (qup_reset_i2c_master_status(gsbi_id)) {
printk(BIOS_ERR, "failed to reset i2c master status\n");
return 1;
}
qup_config->initialized = 1;
return 0;
}
static int i2c_init(unsigned gsbi_id)
{
gsbi_return_t gsbi_ret = 0;
qup_return_t qup_ret = 0;
qup_config_t *qup_config;
switch (gsbi_id) {
case 1:
qup_config = &gsbi1_qup_config;
break;
case 4:
qup_config = &gsbi4_qup_config;
break;
case 7:
qup_config = &gsbi7_qup_config;
break;
default:
printf("QUP configuration not defined for GSBI%d\n", gsbi_id);
return 1;
}
gsbi_ret = gsbi_init(gsbi_id, GSBI_PROTO_I2C_ONLY);
if (GSBI_SUCCESS != gsbi_ret) {
printf("%s: gsbi_init failed\n", __func__);
return 1;
}
qup_ret = qup_init(gsbi_id, qup_config);
if (QUP_SUCCESS != qup_ret) {
printf("%s: qup_init failed\n", __func__);
return 1;
}
qup_ret = qup_reset_i2c_master_status(gsbi_id);
if (QUP_SUCCESS != qup_ret) {
printf("%s: qup_reset failed\n", __func__);
return 1;
}
return 0;
}
