#define MX_TX_RX_LEN SZ_64K
#define MX_BLOCKS (MX_TX_RX_LEN / QUP_READ_LIMIT)
-/* Max timeout in ms for 32k bytes */
-#define TOUT_MAX 300
+/*
+ * Minimum transfer timeout for i2c transfers in seconds. It will be added on
+ * the top of maximum transfer time calculated from i2c bus speed to compensate
+ * the overheads.
+ */
+#define TOUT_MIN 2
/* Default values. Use these if FW query fails */
#define DEFAULT_CLK_FREQ 100000
int in_blk_sz;
unsigned long one_byte_t;
+ unsigned long xfer_timeout;
struct qup_i2c_block blk;
struct i2c_msg *msg;
dma_async_issue_pending(qup->brx.dma);
}
- if (!wait_for_completion_timeout(&qup->xfer, TOUT_MAX * HZ)) {
+ if (!wait_for_completion_timeout(&qup->xfer, qup->xfer_timeout)) {
dev_err(qup->dev, "normal trans timed out\n");
ret = -ETIMEDOUT;
}
*/
one_bit_t = (USEC_PER_SEC / clk_freq) + 1;
qup->one_byte_t = one_bit_t * 9;
+ qup->xfer_timeout = TOUT_MIN * HZ +
+ usecs_to_jiffies(MX_TX_RX_LEN * qup->one_byte_t);
dev_dbg(qup->dev, "IN:block:%d, fifo:%d, OUT:block:%d, fifo:%d\n",
qup->in_blk_sz, qup->in_fifo_sz,