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[stable,4.19+,02/20] ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157

Message ID 20191115223356.27675-2-mathieu.poirier@linaro.org
State New
Headers show
Series [stable,4.19+,01/20] i2c: stm32f7: fix first byte to send in slave mode | expand

Commit Message

Mathieu Poirier Nov. 15, 2019, 10:33 p.m. UTC 
From: Patrice Chotard <patrice.chotard@st.com>


commit 86ec2e1739aa1d6565888b4b2059fa47354e1a89 upstream

Relax qspi pins slew-rate to minimize peak currents.

Fixes: 844030057339 ("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>

Cc: stable <stable@vger.kernel.org> # 4.19+
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

---
 arch/arm/boot/dts/stm32mp157-pinctrl.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

-- 
2.17.1
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Patch

diff --git a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
index c4851271e810..d9dce0c804e1 100644
--- a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
@@ -290,13 +290,13 @@ 
 						 <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>;
 				};
 			};
 
@@ -308,13 +308,13 @@ 
 						 <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>;
 				};
 			};