ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157

Relax qspi pins slew-rate to minimize peak currents.

Fixes: 2b0d39375890 ("ARM: dts: stm32: add flash nor support on stm32mp157c eval board")
Link: https://lore.kernel.org/r/20191025130122.11407-1-alexandre.torgue@st.com
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

diff --git a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
index e4a0d51ec3a8cde7003099dcc29f008f82704e74..0a3a7d66737b60dd4f3ff991e5ffc68629660e4b 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
@@ -609,13 +609,13 @@
                                                 <STM32_PINMUX('F', 6, AF9)>; /* QSPI_BK1_IO3 */
                                        bias-disable;
                                        drive-push-pull;
-                                       slew-rate = <3>;
+                                       slew-rate = <1>;
                                };
                                pins2 {
                                        pinmux = <STM32_PINMUX('B', 6, AF10)>; /* QSPI_BK1_NCS */
                                        bias-pull-up;
                                        drive-push-pull;
-                                       slew-rate = <3>;
+                                       slew-rate = <1>;
                                };
                        };
 
@@ -637,13 +637,13 @@
                                                 <STM32_PINMUX('G', 7, AF11)>; /* QSPI_BK2_IO3 */
                                        bias-disable;
                                        drive-push-pull;
-                                       slew-rate = <3>;
+                                       slew-rate = <1>;
                                };
                                pins2 {
                                        pinmux = <STM32_PINMUX('C', 0, AF10)>; /* QSPI_BK2_NCS */
                                        bias-pull-up;
                                        drive-push-pull;
-                                       slew-rate = <3>;
+                                       slew-rate = <1>;
                                };
                        };