From 7b340aa70dbea4096f949a9ddceb169079a0603b Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 4 Apr 2024 17:03:33 +0100 Subject: [PATCH 1003/1085] i2c: designware: Make the SDA hold time half LCNT In the absence of a value in Device Tree, set the SDA hold time to half the SCL low time. Signed-off-by: Phil Elwell --- drivers/i2c/busses/i2c-designware-master.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -194,6 +194,9 @@ static int i2c_dw_set_timings_master(str dev->hs_hcnt, dev->hs_lcnt); } + if (!dev->sda_hold_time) + dev->sda_hold_time = lcnt / 2; + ret = i2c_dw_set_sda_hold(dev); if (ret) return ret;