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[Dell] Update FPGA driver

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This commit is contained in:
ArunSaravananBalachandran 2024-03-11 17:12:21 +05:30
parent fdc8ce12ce
commit 5fab8a44a9
1 changed files with 12 additions and 5 deletions
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17
platform/broadcom/sonic-platform-modules-dell/common/dell_fpga_ocores.c
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@ -213,6 +213,8 @@ enum {
STATE_READ,
STATE_STOP,
STATE_ERROR,
STATE_NACK,
STATE_ARBLOST,
};
#define TYPE_FPGALOGIC 0
@ -527,7 +529,8 @@ static void fpgai2c_process(struct fpgalogic_i2c *i2c)
return;
}
if ((i2c->state == STATE_STOP) || (i2c->state == STATE_ERROR)) {
if ((i2c->state == STATE_STOP) || (i2c->state == STATE_NACK) ||
(i2c->state == STATE_ARBLOST)) {
/* stop has been sent */
PRINT("fpgai2c_process FPGAI2C_REG_CMD_IACK stat = 0x%x Set FPGAI2C_REG_CMD(0%x) FPGAI2C_REG_CMD_IACK = 0x%x\n" \
,stat, FPGAI2C_REG_CMD, FPGAI2C_REG_CMD_IACK);
@ -535,6 +538,9 @@ static void fpgai2c_process(struct fpgalogic_i2c *i2c)
if(i2c->state == STATE_STOP) {
i2c->state = STATE_DONE;
}
if ((i2c->state == STATE_NACK) || (i2c->state == STATE_ARBLOST)) {
i2c->state = STATE_ERROR;
}
wake_up(&i2c->wait);
return;
}
@ -542,7 +548,7 @@ static void fpgai2c_process(struct fpgalogic_i2c *i2c)
/* error? */
if (stat & FPGAI2C_REG_STAT_ARBLOST) {
i2c->state = STATE_ERROR;
i2c->state = STATE_ARBLOST;
PRINT("fpgai2c_process FPGAI2C_REG_STAT_ARBLOST FPGAI2C_REG_CMD_STOP\n");
fpgai2c_stop(i2c);
return;
@ -559,7 +565,7 @@ static void fpgai2c_process(struct fpgalogic_i2c *i2c)
(msg->flags & I2C_M_RD) ? STATE_READ : STATE_WRITE;
if (stat & FPGAI2C_REG_STAT_NACK) {
i2c->state = STATE_ERROR;
i2c->state = STATE_NACK;
fpgai2c_stop(i2c);
return;
}
@ -712,7 +718,8 @@ static int fpgai2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
fpgai2c_reg_set(i2c, FPGAI2C_REG_CMD, FPGAI2C_REG_CMD_START);
/* Interrupt mode, wait for MSI, timeout in error conditions */
if (wait_event_timeout(i2c->wait, (i2c->state == STATE_DONE), HZ/4))
if (wait_event_timeout(i2c->wait,
((i2c->state == STATE_DONE) || (i2c->state == STATE_ERROR)), HZ/2))
ret = (i2c->state == STATE_DONE) ? num : -EIO;
return ret;
}
@ -1531,4 +1538,4 @@ module_exit (fpgapci_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("joyce_yu@dell.com");
MODULE_DESCRIPTION ("Driver for FPGA Logic I2C bus");
MODULE_VERSION ("01.01");
MODULE_VERSION ("02.02");