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u-boot-megous/drivers
Patrice Chotard 798cd708d5 gpio: stm32f7: replace ODR update by BSRR write
Replace clrsetbits on ODR register (2 operations: one read + one write)
by writing on the correct bit (SET or RESET) of the BSRR register
(only 1 write operation).

Moreover this register if safe for simultaneous access by 2 master on
the bus.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-09-10 20:48:18 -04:00
..
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