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

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Date:   Fri, 4 Oct 2019 16:44:21 +0200
From:   <patrice.chotard@...com>
To:     <robh+dt@...nel.org>, <mark.rutland@....com>,
        <alexandre.torgue@...com>
CC:     <mcoquelin.stm32@...il.com>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux@...linux.org.uk>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Patrice Chotard <patrice.chotard@...com>
Subject: ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157

From: Patrice Chotard <patrice.chotard@...com>

Relax qspi pins slew-rate to minimize peak currents.

Fixes: 844030057339 ("ARM: dts: stm32: add flash nor support on stm32mp157c eval board")

Signed-off-by: Patrice Chotard <patrice.chotard@...com>
---
 arch/arm/boot/dts/stm32mp157-pinctrl.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
index e4a0d51ec3a8..0a3a7d66737b 100644
--- 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>;
 				};
 			};
 
-- 
2.17.1