Thread (11 messages) 11 messages, 3 authors, 2016-08-31

[PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for Arndale Octa board

From: krzk@kernel.org (Krzysztof Kozlowski)
Date: 2016-08-24 19:05:27
Also in: dri-devel, linux-devicetree, linux-samsung-soc, lkml

On Wed, Aug 24, 2016 at 10:07:15PM +0900, Milo Kim wrote:
quoted hunk ↗ jump to hunk
* GPIO for HDMI hot plug detect
  GPX3_7 is used. The HPD awareness is done when the GPIO is active high and
  single ended.

* Enable HDMI block in Exynos5420
  HDMI VDD and PLL consume 1.0V LDO6 (PVDD_ANAIP_1V0) and HDMI oscillator
  requires 1.8V LDO7 (PVDD_ANAIP_1V8).

* Support HDMI display data channel
  I2C #2 is assigned for the HDMI DDC. It enables the EDID access.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <redacted>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-samsung-soc at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Milo Kim <redacted>
---
 arch/arm/boot/dts/exynos5420-arndale-octa.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index 39a3b81..2fb5708 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -70,6 +70,19 @@
 	status = "disabled";
 };
First of all - it looks like these DTS patches do not depend on DRM
part, do they?
+&hdmi {
+	hpd-gpios = <&gpx3 7 GPIO_OPEN_SOURCE>;
Are you sure it is open-source type?
+	vdd_osc-supply = <&ldo7_reg>;
+	vdd_pll-supply = <&ldo6_reg>;
+	vdd-supply = <&ldo6_reg>;
+	ddc = <&i2c_2>;
+	status = "okay";
+};
+
+&i2c_2 {
+	status = "okay";
Hm, what is connected here? Please put it in alphabetical order (so
after hsi2c_4).

Best regards,
Krzysztof
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