commit 3031cdede17f5311a0c1cc4279ea22fd3d02ce73
author Tom Rini <trini@konsulko.com> Wed Dec 11 08:17:19 2019 -0500
committer Tom Rini <trini@konsulko.com> Wed Dec 11 08:17:19 2019 -0500
tree c275a044c47966ad991af851b4a9336805a846e4
parent addb1d9f5d63f4586fa4a0ad24a9eaae35331783
parent 3104162a8b967919d2b65211650299018e10c61e

Merge tag 'fix-for-2020.01' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2c

i2c bugfixes for 2020.01
- i2c: i2c_cdns: fix write timeout on fifo boundary
  fixes timout issue when writting number of bytes is multiple
  of the FIFO depth.

drivers/i2c/i2c-cdns.c

diff --git a/drivers/i2c/i2c-cdns.c b/drivers/i2c/i2c-cdns.c
index 2c0301a..ff3956d 100644
--- a/drivers/i2c/i2c-cdns.c
+++ b/drivers/i2c/i2c-cdns.c
@@ -265,7 +265,7 @@
 
 	while (len-- && !is_arbitration_lost(regs)) {
 		writel(*(cur_data++), &regs->data);
-		if (readl(&regs->transfer_size) == CDNS_I2C_FIFO_DEPTH) {
+		if (len && readl(&regs->transfer_size) == CDNS_I2C_FIFO_DEPTH) {
 			ret = cdns_i2c_wait(regs, CDNS_I2C_INTERRUPT_COMP |
 					    CDNS_I2C_INTERRUPT_ARBLOST);
 			if (ret & CDNS_I2C_INTERRUPT_ARBLOST)