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From: Frieder Schrempf <frieder@fris.de>
To: Conor Dooley <conor+dt@kernel.org>,
	devicetree@vger.kernel.org,
	Frieder Schrempf <frieder.schrempf@kontron.de>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>
Subject: [PATCH v4 01/12] arm64: dts: imx8mm-kontron: Disable pullups for I2C signals on OSM-S i.MX8MM
Date: Mon,  8 Jan 2024 09:48:58 +0100	[thread overview]
Message-ID: <20240108084945.75356-2-frieder@fris.de> (raw)
In-Reply-To: <20240108084945.75356-1-frieder@fris.de>

From: Frieder Schrempf <frieder.schrempf@kontron.de>

There are external pullup resistors on the board and due to silicon
errata ERR050080 let's disable the internal ones to prevent any
unwanted behavior in case they wear out.

Fixes: de9618e84f76 ("arm64: dts: Add support for Kontron SL/BL i.MX8MM OSM-S")
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
---
Changes for v3:
* none

Changes for v2:
* none
---
 arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts | 4 ++--
 arch/arm64/boot/dts/freescale/imx8mm-kontron-osm-s.dtsi   | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts
index 8b16bd68576c0..0730c22e5b6b9 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts
@@ -294,8 +294,8 @@ MX8MM_IOMUXC_SAI3_MCLK_GPIO5_IO2		0x19
 
 	pinctrl_i2c4: i2c4grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL			0x400001c3
-			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA			0x400001c3
+			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL			0x40000083
+			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA			0x40000083
 		>;
 	};
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-osm-s.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-osm-s.dtsi
index 6e75ab879bf59..3e7db968f7e64 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-osm-s.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-osm-s.dtsi
@@ -252,8 +252,8 @@ MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9		0x19
 
 	pinctrl_i2c1: i2c1grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL			0x400001c3
-			MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA			0x400001c3
+			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL			0x40000083
+			MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA			0x40000083
 		>;
 	};
 
-- 
2.43.0


  reply	other threads:[~2024-01-08  8:58 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-08  8:48 [PATCH v4 00/12] arm64: dts: imx8mm-kontron: DT updates Frieder Schrempf
2024-01-08  8:48 ` Frieder Schrempf [this message]
2024-01-08  8:48 ` [PATCH v4 02/12] arm64: dts: imx8mm-kontron: Disable pullups for I2C signals on SL/BL i.MX8MM Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 03/12] arm64: dts: imx8mm-kontron: Disable pullups for onboard UART signals on BL OSM-S board Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 04/12] arm64: dts: imx8mm-kontron: Disable pullups for onboard UART signals on BL board Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 05/12] arm64: dts: imx8mm-kontron: Disable pull resistors for SD card signals on BL OSM-S board Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 06/12] arm64: dts: imx8mm-kontron: Disable pull resistors for SD card signals on BL board Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 07/12] arm64: dts: imx8mm-kontron: Fix interrupt for RTC on OSM-S i.MX8MM module Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 08/12] arm64: dts: imx8mm-kontron: Fix OSM-S devicetrees to match latest hardware Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 09/12] arm64: dts: imx8mm-kontron: Disable uneffective PUE bit in SDIO IOMUX Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 10/12] arm64: dts: imx8mm-kontron: Remove useless trickle-diode-disable from RTC node Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 11/12] arm64: dts: imx8mm-kontron: Add I2C EEPROM on OSM-S Kontron i.MX8MM Frieder Schrempf
2024-01-08  8:49 ` [PATCH v4 12/12] arm64: dts: imx8mm-kontron: Refactor devicetree for OSM-S module and board Frieder Schrempf
2024-02-01  7:42 ` [PATCH v4 00/12] arm64: dts: imx8mm-kontron: DT updates Shawn Guo

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