pinctrl: stm32: protect configuration registers with a hwspinlock
If a hwspinlock if defined in device tree use it to protect configuration registers. Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@st.com> Acked-by: NAlexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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