From: Lucas Stach <l.stach@pengutronix.de>
To: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
kernel@pengutronix.de, patchwork-lst@pengutronix.de
Subject: [PATCH 07/10] arm64: dts: zii-ultra: fix i2c pin configuration
Date: Mon, 25 Jan 2021 19:47:33 +0100 [thread overview]
Message-ID: <20210125184736.1226435-7-l.stach@pengutronix.de> (raw)
In-Reply-To: <20210125184736.1226435-1-l.stach@pengutronix.de>
Reduce slew rate and set drive strength to 105 Ohm. The previous settings
had some issues with signal ringing, due to the slew rate being too fast.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
.../boot/dts/freescale/imx8mq-zii-ultra.dtsi | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index e6469e15bcbd..aa05d5fd1b3b 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -661,29 +661,29 @@
pinctrl_i2c1: i2c1grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA 0x400000a2
>;
};
pinctrl_i2c2: i2c2grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA 0x400000a2
>;
};
pinctrl_i2c3: i2c3grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x400000a2
>;
};
pinctrl_i2c4: i2c4grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA 0x400000a2
>;
};
--
2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Lucas Stach <l.stach@pengutronix.de>
To: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org, Fabio Estevam <festevam@gmail.com>,
kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org,
patchwork-lst@pengutronix.de
Subject: [PATCH 07/10] arm64: dts: zii-ultra: fix i2c pin configuration
Date: Mon, 25 Jan 2021 19:47:33 +0100 [thread overview]
Message-ID: <20210125184736.1226435-7-l.stach@pengutronix.de> (raw)
In-Reply-To: <20210125184736.1226435-1-l.stach@pengutronix.de>
Reduce slew rate and set drive strength to 105 Ohm. The previous settings
had some issues with signal ringing, due to the slew rate being too fast.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
.../boot/dts/freescale/imx8mq-zii-ultra.dtsi | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index e6469e15bcbd..aa05d5fd1b3b 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -661,29 +661,29 @@
pinctrl_i2c1: i2c1grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA 0x400000a2
>;
};
pinctrl_i2c2: i2c2grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA 0x400000a2
>;
};
pinctrl_i2c3: i2c3grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x400000a2
>;
};
pinctrl_i2c4: i2c4grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA 0x400000a2
>;
};
--
2.20.1
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next prev parent reply other threads:[~2021-01-25 18:50 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-25 18:47 [PATCH 01/10] ARM: dts: imx6: rdu2: enable WDOG1 Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-25 18:47 ` [PATCH 02/10] ARM: dts: imx6: RDU2: reduce i2c drive-strength Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-25 18:47 ` [PATCH 03/10] ARM: dts: imx6: RDU2: enable RMI4 reduced reporting Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-25 18:47 ` [PATCH 04/10] ARM: dts: imx6: RDU2: only trigger IRQ on falling edge ucs1002 ALERT pin Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-25 18:47 ` [PATCH 05/10] ARM: dts: imx6: RDU2: adjust audio devices nomenclature Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-25 18:47 ` [PATCH 06/10] arm64: dts: zii-ultra: add sound support Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-25 18:47 ` Lucas Stach [this message]
2021-01-25 18:47 ` [PATCH 07/10] arm64: dts: zii-ultra: fix i2c pin configuration Lucas Stach
2021-01-25 18:47 ` [PATCH 08/10] arm64: dts: zii-ultra: limit USB ports to USB2 speed Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-25 18:47 ` [PATCH 09/10] arm64: dts: zii-ultra: only trigger IRQ on falling edge ucs1002 ALERT pin Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-25 18:47 ` [PATCH 10/10] arm64: dts: zii-rmb3: enable RMI4 reduced reporting Lucas Stach
2021-01-25 18:47 ` Lucas Stach
2021-01-30 13:55 ` [PATCH 01/10] ARM: dts: imx6: rdu2: enable WDOG1 Shawn Guo
2021-01-30 13:55 ` Shawn Guo
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