From: Bryan Wu <cooloney-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org,
thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] ARM: tegra: enable I2C MUX PCA954x
Date: Fri, 7 Feb 2014 12:53:32 -0800 [thread overview]
Message-ID: <1391806412-8561-1-git-send-email-pengw@nvidia.com> (raw)
Cardhu has a PCA9546 for I2C bus extension, which connects to 3
cameras. It's required for Tegra V4L2 soc camera driver and camera
sensor drivers.
Signed-off-by: Bryan Wu <pengw-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
arch/arm/boot/dts/tegra30-cardhu.dtsi | 8 ++++++++
arch/arm/configs/tegra_defconfig | 1 +
2 files changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index 9104224..bfce643 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -187,6 +187,14 @@
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(L, 0) IRQ_TYPE_LEVEL_HIGH>;
};
+
+ /* NXP PCA9546 I2C Mux */
+ pca9546@70 {
+ compatible = "nxp,pca9546";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ };
};
i2c@7000c700 {
diff --git a/arch/arm/configs/tegra_defconfig b/arch/arm/configs/tegra_defconfig
index 995d434..efcf15f 100644
--- a/arch/arm/configs/tegra_defconfig
+++ b/arch/arm/configs/tegra_defconfig
@@ -125,6 +125,7 @@ CONFIG_SERIAL_TEGRA=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
# CONFIG_I2C_COMPAT is not set
+CONFIG_I2C_MUX_PCA954x=y
CONFIG_I2C_MUX_PINCTRL=y
CONFIG_I2C_TEGRA=y
CONFIG_SPI=y
--
1.8.3.2
WARNING: multiple messages have this Message-ID (diff)
From: cooloney@gmail.com (Bryan Wu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: tegra: enable I2C MUX PCA954x
Date: Fri, 7 Feb 2014 12:53:32 -0800 [thread overview]
Message-ID: <1391806412-8561-1-git-send-email-pengw@nvidia.com> (raw)
Cardhu has a PCA9546 for I2C bus extension, which connects to 3
cameras. It's required for Tegra V4L2 soc camera driver and camera
sensor drivers.
Signed-off-by: Bryan Wu <pengw@nvidia.com>
---
arch/arm/boot/dts/tegra30-cardhu.dtsi | 8 ++++++++
arch/arm/configs/tegra_defconfig | 1 +
2 files changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index 9104224..bfce643 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -187,6 +187,14 @@
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(L, 0) IRQ_TYPE_LEVEL_HIGH>;
};
+
+ /* NXP PCA9546 I2C Mux */
+ pca9546 at 70 {
+ compatible = "nxp,pca9546";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ };
};
i2c at 7000c700 {
diff --git a/arch/arm/configs/tegra_defconfig b/arch/arm/configs/tegra_defconfig
index 995d434..efcf15f 100644
--- a/arch/arm/configs/tegra_defconfig
+++ b/arch/arm/configs/tegra_defconfig
@@ -125,6 +125,7 @@ CONFIG_SERIAL_TEGRA=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
# CONFIG_I2C_COMPAT is not set
+CONFIG_I2C_MUX_PCA954x=y
CONFIG_I2C_MUX_PINCTRL=y
CONFIG_I2C_TEGRA=y
CONFIG_SPI=y
--
1.8.3.2
next reply other threads:[~2014-02-07 20:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-07 20:53 Bryan Wu [this message]
2014-02-07 20:53 ` [PATCH] ARM: tegra: enable I2C MUX PCA954x Bryan Wu
[not found] ` <1391806412-8561-1-git-send-email-pengw-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-02-07 23:34 ` Stephen Warren
2014-02-07 23:34 ` Stephen Warren
[not found] ` <52F56D95.50707-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2014-02-07 23:43 ` Bryan Wu
2014-02-07 23:43 ` Bryan Wu
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