From: Sanchayan Maity <maitysanchayan@gmail.com>
To: shawnguo@kernel.org
Cc: marcel.ziswiler@toradex.com, stefan@agner.ch,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Sanchayan Maity <maitysanchayan@gmail.com>
Subject: [PATCH v1 1/3] ARM: dts: imx6qdl-apalis: Do not rely on DDC I2C bus bitbang for HDMI
Date: Wed, 14 Sep 2016 12:05:03 +0530 [thread overview]
Message-ID: <9d2c17aa2e00e6ff4349a53de8247860d2382607.1473833908.git.maitysanchayan@gmail.com> (raw)
Remove the use of DDC I2C bus bitbang to support reading of EDID
and rely on support from internal HDMI I2C master controller instead.
As a result remove the device tree property ddc-i2c-bus.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
---
Hello,
This patch is tested with the following patch applied
https://patchwork.kernel.org/patch/9296883/
and is based on the suggestions from Vladimir
https://lkml.org/lkml/2016/8/29/322
This and following two patches are based on top of shawn's
for-next branch.
Regards,
Sanchayan.
---
arch/arm/boot/dts/imx6q-apalis-ixora.dts | 6 ------
arch/arm/boot/dts/imx6qdl-apalis.dtsi | 25 +++++++++----------------
2 files changed, 9 insertions(+), 22 deletions(-)
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora.dts b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
index 207b85b..d99979e 100644
--- a/arch/arm/boot/dts/imx6q-apalis-ixora.dts
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
@@ -55,7 +55,6 @@
"fsl,imx6q";
aliases {
- i2c0 = &i2cddc;
i2c1 = &i2c1;
i2c2 = &i2c2;
i2c3 = &i2c3;
@@ -186,11 +185,6 @@
};
&hdmi {
- ddc-i2c-bus = <&i2cddc>;
- status = "okay";
-};
-
-&i2cddc {
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index 99e323b..8c67dd8 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
@@ -53,18 +53,6 @@
status = "disabled";
};
- /* DDC_I2C: I2C2_SDA/SCL on MXM3 205/207 */
- i2cddc: i2c@0 {
- compatible = "i2c-gpio";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_i2c_ddc>;
- gpios = <&gpio3 16 GPIO_ACTIVE_HIGH /* sda */
- &gpio2 30 GPIO_ACTIVE_HIGH /* scl */
- >;
- i2c-gpio,delay-us = <2>; /* ~100 kHz */
- status = "disabled";
- };
-
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "1P8V";
@@ -209,6 +197,12 @@
};
};
+&hdmi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hdmi_ddc>;
+ status = "disabled";
+};
+
/*
* GEN1_I2C: I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier
* board)
@@ -633,11 +627,10 @@
>;
};
- pinctrl_i2c_ddc: gpioi2cddcgrp {
+ pinctrl_hdmi_ddc: hdmiddcgrp {
fsl,pins = <
- /* DDC bitbang */
- MX6QDL_PAD_EIM_EB2__GPIO2_IO30 0x1b0b0
- MX6QDL_PAD_EIM_D16__GPIO3_IO16 0x1b0b0
+ MX6QDL_PAD_EIM_EB2__HDMI_TX_DDC_SCL 0x4001b8b1
+ MX6QDL_PAD_EIM_D16__HDMI_TX_DDC_SDA 0x4001b8b1
>;
};
--
2.9.3
WARNING: multiple messages have this Message-ID (diff)
From: Sanchayan Maity <maitysanchayan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Cc: marcel.ziswiler-2KBjVHiyJgBBDgjK7y7TUQ@public.gmane.org,
stefan-XLVq0VzYD2Y@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sanchayan Maity
<maitysanchayan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH v1 1/3] ARM: dts: imx6qdl-apalis: Do not rely on DDC I2C bus bitbang for HDMI
Date: Wed, 14 Sep 2016 12:05:03 +0530 [thread overview]
Message-ID: <9d2c17aa2e00e6ff4349a53de8247860d2382607.1473833908.git.maitysanchayan@gmail.com> (raw)
Remove the use of DDC I2C bus bitbang to support reading of EDID
and rely on support from internal HDMI I2C master controller instead.
As a result remove the device tree property ddc-i2c-bus.
Signed-off-by: Sanchayan Maity <maitysanchayan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
Hello,
This patch is tested with the following patch applied
https://patchwork.kernel.org/patch/9296883/
and is based on the suggestions from Vladimir
https://lkml.org/lkml/2016/8/29/322
This and following two patches are based on top of shawn's
for-next branch.
Regards,
Sanchayan.
---
arch/arm/boot/dts/imx6q-apalis-ixora.dts | 6 ------
arch/arm/boot/dts/imx6qdl-apalis.dtsi | 25 +++++++++----------------
2 files changed, 9 insertions(+), 22 deletions(-)
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora.dts b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
index 207b85b..d99979e 100644
--- a/arch/arm/boot/dts/imx6q-apalis-ixora.dts
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
@@ -55,7 +55,6 @@
"fsl,imx6q";
aliases {
- i2c0 = &i2cddc;
i2c1 = &i2c1;
i2c2 = &i2c2;
i2c3 = &i2c3;
@@ -186,11 +185,6 @@
};
&hdmi {
- ddc-i2c-bus = <&i2cddc>;
- status = "okay";
-};
-
-&i2cddc {
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index 99e323b..8c67dd8 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
@@ -53,18 +53,6 @@
status = "disabled";
};
- /* DDC_I2C: I2C2_SDA/SCL on MXM3 205/207 */
- i2cddc: i2c@0 {
- compatible = "i2c-gpio";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_i2c_ddc>;
- gpios = <&gpio3 16 GPIO_ACTIVE_HIGH /* sda */
- &gpio2 30 GPIO_ACTIVE_HIGH /* scl */
- >;
- i2c-gpio,delay-us = <2>; /* ~100 kHz */
- status = "disabled";
- };
-
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "1P8V";
@@ -209,6 +197,12 @@
};
};
+&hdmi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hdmi_ddc>;
+ status = "disabled";
+};
+
/*
* GEN1_I2C: I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier
* board)
@@ -633,11 +627,10 @@
>;
};
- pinctrl_i2c_ddc: gpioi2cddcgrp {
+ pinctrl_hdmi_ddc: hdmiddcgrp {
fsl,pins = <
- /* DDC bitbang */
- MX6QDL_PAD_EIM_EB2__GPIO2_IO30 0x1b0b0
- MX6QDL_PAD_EIM_D16__GPIO3_IO16 0x1b0b0
+ MX6QDL_PAD_EIM_EB2__HDMI_TX_DDC_SCL 0x4001b8b1
+ MX6QDL_PAD_EIM_D16__HDMI_TX_DDC_SDA 0x4001b8b1
>;
};
--
2.9.3
--
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WARNING: multiple messages have this Message-ID (diff)
From: maitysanchayan@gmail.com (Sanchayan Maity)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1 1/3] ARM: dts: imx6qdl-apalis: Do not rely on DDC I2C bus bitbang for HDMI
Date: Wed, 14 Sep 2016 12:05:03 +0530 [thread overview]
Message-ID: <9d2c17aa2e00e6ff4349a53de8247860d2382607.1473833908.git.maitysanchayan@gmail.com> (raw)
Remove the use of DDC I2C bus bitbang to support reading of EDID
and rely on support from internal HDMI I2C master controller instead.
As a result remove the device tree property ddc-i2c-bus.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
---
Hello,
This patch is tested with the following patch applied
https://patchwork.kernel.org/patch/9296883/
and is based on the suggestions from Vladimir
https://lkml.org/lkml/2016/8/29/322
This and following two patches are based on top of shawn's
for-next branch.
Regards,
Sanchayan.
---
arch/arm/boot/dts/imx6q-apalis-ixora.dts | 6 ------
arch/arm/boot/dts/imx6qdl-apalis.dtsi | 25 +++++++++----------------
2 files changed, 9 insertions(+), 22 deletions(-)
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora.dts b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
index 207b85b..d99979e 100644
--- a/arch/arm/boot/dts/imx6q-apalis-ixora.dts
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
@@ -55,7 +55,6 @@
"fsl,imx6q";
aliases {
- i2c0 = &i2cddc;
i2c1 = &i2c1;
i2c2 = &i2c2;
i2c3 = &i2c3;
@@ -186,11 +185,6 @@
};
&hdmi {
- ddc-i2c-bus = <&i2cddc>;
- status = "okay";
-};
-
-&i2cddc {
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index 99e323b..8c67dd8 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
@@ -53,18 +53,6 @@
status = "disabled";
};
- /* DDC_I2C: I2C2_SDA/SCL on MXM3 205/207 */
- i2cddc: i2c at 0 {
- compatible = "i2c-gpio";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_i2c_ddc>;
- gpios = <&gpio3 16 GPIO_ACTIVE_HIGH /* sda */
- &gpio2 30 GPIO_ACTIVE_HIGH /* scl */
- >;
- i2c-gpio,delay-us = <2>; /* ~100 kHz */
- status = "disabled";
- };
-
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "1P8V";
@@ -209,6 +197,12 @@
};
};
+&hdmi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hdmi_ddc>;
+ status = "disabled";
+};
+
/*
* GEN1_I2C: I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier
* board)
@@ -633,11 +627,10 @@
>;
};
- pinctrl_i2c_ddc: gpioi2cddcgrp {
+ pinctrl_hdmi_ddc: hdmiddcgrp {
fsl,pins = <
- /* DDC bitbang */
- MX6QDL_PAD_EIM_EB2__GPIO2_IO30 0x1b0b0
- MX6QDL_PAD_EIM_D16__GPIO3_IO16 0x1b0b0
+ MX6QDL_PAD_EIM_EB2__HDMI_TX_DDC_SCL 0x4001b8b1
+ MX6QDL_PAD_EIM_D16__HDMI_TX_DDC_SDA 0x4001b8b1
>;
};
--
2.9.3
next reply other threads:[~2016-09-14 6:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-14 6:35 Sanchayan Maity [this message]
2016-09-14 6:35 ` [PATCH v1 1/3] ARM: dts: imx6qdl-apalis: Do not rely on DDC I2C bus bitbang for HDMI Sanchayan Maity
2016-09-14 6:35 ` Sanchayan Maity
2016-09-14 6:35 ` [PATCH v1 2/3] ARM: dts: imx6q-apalis-ixora: Remove use of pwm-leds Sanchayan Maity
2016-09-14 6:35 ` Sanchayan Maity
2016-09-14 15:58 ` Stefan Agner
2016-09-14 15:58 ` Stefan Agner
2016-09-14 15:58 ` Stefan Agner
2016-09-14 18:28 ` Marcel Ziswiler
2016-09-14 18:28 ` Marcel Ziswiler
2016-09-14 18:28 ` Marcel Ziswiler
2016-09-16 13:38 ` Marcel Ziswiler
2016-09-16 13:38 ` Marcel Ziswiler
2016-09-16 13:38 ` Marcel Ziswiler
2016-09-14 6:35 ` [PATCH v1 3/3] ARM: dts: imx6qdl-apalis: Use enable-gpios property for backlight Sanchayan Maity
2016-09-14 6:35 ` Sanchayan Maity
2016-09-16 13:38 ` Marcel Ziswiler
2016-09-16 13:38 ` Marcel Ziswiler
2016-09-16 13:38 ` Marcel Ziswiler
2016-09-17 4:45 ` maitysanchayan
2016-09-17 4:45 ` maitysanchayan at gmail.com
2016-09-17 4:45 ` maitysanchayan-Re5JQEeQqe8AvxtiuMwx3w
2016-09-16 13:38 ` [PATCH v1 1/3] ARM: dts: imx6qdl-apalis: Do not rely on DDC I2C bus bitbang for HDMI Marcel Ziswiler
2016-09-16 13:38 ` Marcel Ziswiler
2016-09-16 13:38 ` Marcel Ziswiler
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