[PATCH v3 07/11] i2c: npcm: Add tx complete counter

Tyrone Ting
2022-03-03T08:32:11Z

From: Tali Perry <tali.perry1@gmail.com>

tx_complete counter is used to indicate successful transaction
count.
Similar counters for failed tx were previously added.

Fixes: 56a1485b102e ("i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver")
Signed-off-by: Tali Perry <tali.perry1@gmail.com>
Signed-off-by: Tyrone Ting <kfting@nuvoton.com>
---
drivers/i2c/busses/i2c-npcm7xx.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/i2c/busses/i2c-npcm7xx.c b/drivers/i2c/busses/i2c-npcm7xx.c
index 3fd30c38b3bf..237da0ef32ca 100644
--- a/drivers/i2c/busses/i2c-npcm7xx.c
+++ b/drivers/i2c/busses/i2c-npcm7xx.c
@@ -314,6 +314,7 @@ struct npcm_i2c {
u64 rec_fail_cnt;
u64 nack_cnt;
u64 timeout_cnt;
+ u64 tx_complete_cnt;
};

static inline void npcm_i2c_select_bank(struct npcm_i2c *bus,
@@ -684,6 +685,8 @@ static void npcm_i2c_callback(struct npcm_i2c *bus,
switch (op_status) {
case I2C_MASTER_DONE_IND:
bus->cmd_err = bus->msgs_num;
+ if (bus->tx_complete_cnt < ULLONG_MAX)
+ bus->tx_complete_cnt++;
fallthrough;
case I2C_BLOCK_BYTES_ERR_IND:
/* Master tx finished and all transmit bytes were sent */
@@ -2223,6 +2226,7 @@ static void npcm_i2c_init_debugfs(struct platform_device *pdev,
debugfs_create_u64("rec_succ_cnt", 0444, d, &bus->rec_succ_cnt);
debugfs_create_u64("rec_fail_cnt", 0444, d, &bus->rec_fail_cnt);
debugfs_create_u64("timeout_cnt", 0444, d, &bus->timeout_cnt);
+ debugfs_create_u64("tx_complete_cnt", 0444, d, &bus->tx_complete_cnt);

bus->debugfs = d;
}
--
2.17.1