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i2c: i2c-stm32f7: Fix SDADEL minimum formula

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commit c86da50cfd upstream.

It conforms with Reference Manual I2C timing section.

Fixes: aeb068c572 ("i2c: i2c-stm32f7: add driver")
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Bich Hemon <bich.hemon@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nicolas Le Bayon 2019-03-06 15:12:16 +00:00 committed by Greg Kroah-Hartman
parent 502a97abc4
commit 6831e34216
1 changed files with 1 additions and 1 deletions
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2
drivers/i2c/busses/i2c-stm32f7.c
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@ -340,7 +340,7 @@ static int stm32f7_i2c_compute_timing(struct stm32f7_i2c_dev *i2c_dev,
STM32F7_I2C_ANALOG_FILTER_DELAY_MAX : 0);
dnf_delay = setup->dnf * i2cclk;
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 -