projects / thirdparty / kernel / stable-queue.git / blame
| Commit | Line | Data |
|---|---|---|
| c728510a GKH |
1 | From c86da50cfd840edf223a242580913692acddbcf6 Mon Sep 17 00:00:00 2001 |
| 2 | From: Nicolas Le Bayon <nicolas.le.bayon@st.com> | |
| 3 | Date: Wed, 6 Mar 2019 15:12:16 +0000 | |
| 4 | Subject: i2c: i2c-stm32f7: Fix SDADEL minimum formula | |
| 5 | ||
| 6 | From: Nicolas Le Bayon <nicolas.le.bayon@st.com> | |
| 7 | ||
| 8 | commit c86da50cfd840edf223a242580913692acddbcf6 upstream. | |
| 9 | ||
| 10 | It conforms with Reference Manual I2C timing section. | |
| 11 | ||
| 12 | Fixes: aeb068c57214 ("i2c: i2c-stm32f7: add driver") | |
| 13 | Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com> | |
| 14 | Signed-off-by: Bich Hemon <bich.hemon@st.com> | |
| 15 | Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com> | |
| 16 | Signed-off-by: Wolfram Sang <wsa@the-dreams.de> | |
| 17 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| 18 | ||
| 19 | --- | |
| 20 | drivers/i2c/busses/i2c-stm32f7.c | 2 +- | |
| 21 | 1 file changed, 1 insertion(+), 1 deletion(-) | |
| 22 | ||
| 23 | --- a/drivers/i2c/busses/i2c-stm32f7.c | |
| 24 | +++ b/drivers/i2c/busses/i2c-stm32f7.c | |
| 25 | @@ -340,7 +340,7 @@ static int stm32f7_i2c_compute_timing(st | |
| 26 | STM32F7_I2C_ANALOG_FILTER_DELAY_MAX : 0); | |
| 27 | dnf_delay = setup->dnf * i2cclk; | |
| 28 | ||
| 29 | - sdadel_min = setup->fall_time - i2c_specs[setup->speed].hddat_min - | |
| 30 | + sdadel_min = i2c_specs[setup->speed].hddat_min + setup->fall_time - | |
| 31 | af_delay_min - (setup->dnf + 3) * i2cclk; | |
| 32 | ||
| 33 | sdadel_max = i2c_specs[setup->speed].vddat_max - setup->rise_time - |