From: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Date: Thu, 18 Apr 2019 15:32:42 +0000 (+0200)
Subject: i2c: stm32f7: Fix SDADEL minimum formula
X-Git-Tag: v2025.01-rc5-pxa1908~2962^2~18
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=e87da7521f922e3d0f6aaa6b162e872f8f39c649;p=u-boot.git

i2c: stm32f7: Fix SDADEL minimum formula

It conforms with Reference Manual I2C timing section.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Reviewed-by: Patrick DELAUNAY <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
---

diff --git a/drivers/i2c/stm32f7_i2c.c b/drivers/i2c/stm32f7_i2c.c
index 3872364d6b..e7e0268ebe 100644
--- a/drivers/i2c/stm32f7_i2c.c
+++ b/drivers/i2c/stm32f7_i2c.c
@@ -500,7 +500,7 @@ static int stm32_i2c_compute_solutions(struct stm32_i2c_setup *setup,
 	af_delay_max = setup->analog_filter ?
 		       STM32_I2C_ANALOG_FILTER_DELAY_MAX : 0;
 
-	sdadel_min = setup->fall_time - i2c_specs[setup->speed].hddat_min -
+	sdadel_min = i2c_specs[setup->speed].hddat_min + setup->fall_time -
 		     af_delay_min - (setup->dnf + 3) * i2cclk;
 
 	sdadel_max = i2c_specs[setup->speed].vddat_max - setup->rise_time -