* [PATCH v3 0/5] ARM: dts: exynos: Enable HDMI in Arndale Octa board
@ 2016-08-24 13:07 Milo Kim
2016-08-24 13:07 ` [PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for " Milo Kim
` (4 more replies)
0 siblings, 5 replies; 11+ messages in thread
From: Milo Kim @ 2016-08-24 13:07 UTC (permalink / raw)
To: Kukjin Kim, Krzysztof Kozlowski, David Airlie
Cc: Inki Dae, Joonyoung Shim, Seung-Woo Kim, Kyungmin Park,
Rob Herring, devicetree, linux-arm-kernel, linux-samsung-soc,
linux-kernel, dri-devel, Milo Kim
This patch-set enables HDMI in Arndale Octa board and fixes HPD DT property.
It also includes code refactoring on ddc and phy.
v3:
Add 'vdd-supply' property in dts.
Use generic 'ddc' property instead of legacy property.
Clean up DDC and PHY logic in _probe().
Remove duplicate code of regulator consumer initialization.
v2:
Include DRM and Exynos maintainers and resend the patch-set.
Add Rob's ack for the patch,
[PATCH 2/4] ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio'
Milo Kim (5):
ARM: dts: exynos: Enable HDMI for Arndale Octa board
ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio'
gpu: drm: exynos_hdmi: Move DDC logic into single function
gpu: drm: exynos_hdmi: Move PHY logic into single function
gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator
bulk consumer
.../bindings/display/exynos/exynos_hdmi.txt | 4 +-
arch/arm/boot/dts/exynos4210-universal_c210.dts | 2 +-
arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 2 +-
arch/arm/boot/dts/exynos5250-arndale.dts | 2 +-
arch/arm/boot/dts/exynos5250-smdk5250.dts | 2 +-
arch/arm/boot/dts/exynos5250-snow-common.dtsi | 2 +-
arch/arm/boot/dts/exynos5250-spring.dts | 2 +-
arch/arm/boot/dts/exynos5420-arndale-octa.dts | 13 +++
arch/arm/boot/dts/exynos5420-peach-pit.dts | 2 +-
arch/arm/boot/dts/exynos5420-smdk5420.dts | 2 +-
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 2 +-
arch/arm/boot/dts/exynos5800-peach-pi.dts | 2 +-
drivers/gpu/drm/exynos/exynos_hdmi.c | 112 +++++++++++----------
13 files changed, 84 insertions(+), 65 deletions(-)
--
1.9.1
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for Arndale Octa board
2016-08-24 13:07 [PATCH v3 0/5] ARM: dts: exynos: Enable HDMI in Arndale Octa board Milo Kim
@ 2016-08-24 13:07 ` Milo Kim
2016-08-24 19:05 ` Krzysztof Kozlowski
2016-08-24 13:07 ` [PATCH v3 2/5] ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio' Milo Kim
` (3 subsequent siblings)
4 siblings, 1 reply; 11+ messages in thread
From: Milo Kim @ 2016-08-24 13:07 UTC (permalink / raw)
To: Kukjin Kim, Krzysztof Kozlowski, David Airlie
Cc: Inki Dae, Joonyoung Shim, Seung-Woo Kim, Kyungmin Park,
Rob Herring, devicetree, linux-arm-kernel, linux-samsung-soc,
linux-kernel, dri-devel, Milo Kim
* 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 <k.kozlowski@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
---
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";
};
+&hdmi {
+ hpd-gpios = <&gpx3 7 GPIO_OPEN_SOURCE>;
+ vdd_osc-supply = <&ldo7_reg>;
+ vdd_pll-supply = <&ldo6_reg>;
+ vdd-supply = <&ldo6_reg>;
+ ddc = <&i2c_2>;
+ status = "okay";
+};
+
+&i2c_2 {
+ status = "okay";
+};
+
&hsi2c_4 {
status = "okay";
--
1.9.1
^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH v3 2/5] ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio'
2016-08-24 13:07 [PATCH v3 0/5] ARM: dts: exynos: Enable HDMI in Arndale Octa board Milo Kim
2016-08-24 13:07 ` [PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for " Milo Kim
@ 2016-08-24 13:07 ` Milo Kim
2016-08-24 19:13 ` Krzysztof Kozlowski
2016-08-24 13:07 ` [PATCH v3 3/5] gpu: drm: exynos_hdmi: Move DDC logic into single function Milo Kim
` (2 subsequent siblings)
4 siblings, 1 reply; 11+ messages in thread
From: Milo Kim @ 2016-08-24 13:07 UTC (permalink / raw)
To: Kukjin Kim, Krzysztof Kozlowski, David Airlie
Cc: Inki Dae, Joonyoung Shim, Seung-Woo Kim, Kyungmin Park,
Rob Herring, devicetree, linux-arm-kernel, linux-samsung-soc,
linux-kernel, dri-devel, Milo Kim
This patch enables getting a HPD GPIO descriptor quickly.
The exynos-hdmi driver uses "hpd" for HDMI hot plug detection.
static int hdmi_resources_init(struct hdmi_context *hdata)
{
...
hdata->hpd_gpio = devm_gpiod_get(dev, "hpd", GPIOD_IN);
...
}
This calls 'of_find_gpio()' and it generates the GPIO consumer ID by referring
GPIO suffix. So 'hpd-gpios' is preferred on getting a GPIO descriptor.
However, if the device tree uses 'hpd-gpio', then the exynos-hdmi driver
always retries to get a GPIO descriptor because the first GPIO suffix is not
'gpio' but 'gpios'. So you always see the debug message below.
of_get_named_gpiod_flags: can't parse 'hpd-gpios' property of node '/soc/hdmi@14530000[0]'
Use the preferred property, 'hpd-gpios' instead of 'hpd-gpio'.
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
---
Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt | 4 ++--
arch/arm/boot/dts/exynos4210-universal_c210.dts | 2 +-
arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 2 +-
arch/arm/boot/dts/exynos5250-arndale.dts | 2 +-
arch/arm/boot/dts/exynos5250-smdk5250.dts | 2 +-
arch/arm/boot/dts/exynos5250-snow-common.dtsi | 2 +-
arch/arm/boot/dts/exynos5250-spring.dts | 2 +-
arch/arm/boot/dts/exynos5420-peach-pit.dts | 2 +-
arch/arm/boot/dts/exynos5420-smdk5420.dts | 2 +-
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 2 +-
arch/arm/boot/dts/exynos5800-peach-pi.dts | 2 +-
11 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
index a2ec4c1..6394ea9 100644
--- a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
+++ b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
@@ -9,7 +9,7 @@ Required properties:
- reg: physical base address of the hdmi and length of memory mapped
region.
- interrupts: interrupt number to the cpu.
-- hpd-gpio: following information about the hotplug gpio pin.
+- hpd-gpios: following information about the hotplug gpio pin.
a) phandle of the gpio controller node.
b) pin number within the gpio controller.
c) optional flags and pull up/down.
@@ -56,7 +56,7 @@ Example:
compatible = "samsung,exynos4212-hdmi";
reg = <0x14530000 0x100000>;
interrupts = <0 95 0>;
- hpd-gpio = <&gpx3 7 1>;
+ hpd-gpios = <&gpx3 7 1>;
ddc = <&hdmi_ddc_node>;
phy = <&hdmi_phy_node>;
samsung,syscon-phandle = <&pmu_system_controller>;
diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts
index 9a75e3e..cf95202 100644
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -269,7 +269,7 @@
};
&hdmi {
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd>;
hdmi-en-supply = <&hdmi_en>;
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 58ad48e7..be644fe 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -227,7 +227,7 @@
};
&hdmi {
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd>;
vdd-supply = <&ldo8_reg>;
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index ea70603..3d981f3 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -152,7 +152,7 @@
};
&hdmi {
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_LOW>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_LOW>;
vdd_osc-supply = <&ldo10_reg>;
vdd_pll-supply = <&ldo8_reg>;
vdd-supply = <&ldo8_reg>;
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 381af13..7f27263 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -116,7 +116,7 @@
};
&hdmi {
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
};
&i2c_0 {
diff --git a/arch/arm/boot/dts/exynos5250-snow-common.dtsi b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
index fadbea7..1055d25 100644
--- a/arch/arm/boot/dts/exynos5250-snow-common.dtsi
+++ b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
@@ -260,7 +260,7 @@
};
&hdmi {
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
phy = <&hdmiphy>;
diff --git a/arch/arm/boot/dts/exynos5250-spring.dts b/arch/arm/boot/dts/exynos5250-spring.dts
index 44f4292..1d52a79 100644
--- a/arch/arm/boot/dts/exynos5250-spring.dts
+++ b/arch/arm/boot/dts/exynos5250-spring.dts
@@ -91,7 +91,7 @@
};
&hdmi {
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
phy = <&hdmiphy>;
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index fe4e091..f6f256f 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -179,7 +179,7 @@
&hdmi {
status = "okay";
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
ddc = <&i2c_2>;
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index ed8f342..2954646 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -130,7 +130,7 @@
&hdmi {
status = "okay";
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
};
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index d562530..47c113c 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -250,7 +250,7 @@
&hdmi {
status = "okay";
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 5ec71e2..51a8bca 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -179,7 +179,7 @@
&hdmi {
status = "okay";
- hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
ddc = <&i2c_2>;
--
1.9.1
^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH v3 3/5] gpu: drm: exynos_hdmi: Move DDC logic into single function
2016-08-24 13:07 [PATCH v3 0/5] ARM: dts: exynos: Enable HDMI in Arndale Octa board Milo Kim
2016-08-24 13:07 ` [PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for " Milo Kim
2016-08-24 13:07 ` [PATCH v3 2/5] ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio' Milo Kim
@ 2016-08-24 13:07 ` Milo Kim
2016-08-25 7:03 ` Andrzej Hajda
2016-08-24 13:07 ` [PATCH v3 4/5] gpu: drm: exynos_hdmi: Move PHY " Milo Kim
2016-08-24 13:07 ` [PATCH v3 5/5] gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator bulk consumer Milo Kim
4 siblings, 1 reply; 11+ messages in thread
From: Milo Kim @ 2016-08-24 13:07 UTC (permalink / raw)
To: Kukjin Kim, Krzysztof Kozlowski, David Airlie
Cc: Inki Dae, Joonyoung Shim, Seung-Woo Kim, Kyungmin Park,
Rob Herring, devicetree, linux-arm-kernel, linux-samsung-soc,
linux-kernel, dri-devel, Milo Kim
Paring DT properties and getting the I2C adapter in one function.
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
---
drivers/gpu/drm/exynos/exynos_hdmi.c | 46 ++++++++++++++++++++----------------
1 file changed, 25 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 2275efe..8d99b5d 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1760,16 +1760,34 @@ static const struct component_ops hdmi_component_ops = {
.unbind = hdmi_unbind,
};
-static struct device_node *hdmi_legacy_ddc_dt_binding(struct device *dev)
+static int hdmi_get_ddc_adapter(struct hdmi_context *hdata)
{
const char *compatible_str = "samsung,exynos4210-hdmiddc";
struct device_node *np;
+ struct i2c_adapter *adpt;
np = of_find_compatible_node(NULL, NULL, compatible_str);
if (np)
- return of_get_next_parent(np);
+ np = of_get_next_parent(np);
+ else
+ np = of_parse_phandle(hdata->dev->of_node, "ddc", 0);
+
+ if (!np) {
+ DRM_ERROR("Failed to find ddc node in device tree\n");
+ return -ENODEV;
+ }
- return NULL;
+ adpt = of_find_i2c_adapter_by_node(np);
+ if (!adpt) {
+ DRM_ERROR("Failed to get ddc i2c adapter by node\n");
+ of_node_put(np);
+ return -EPROBE_DEFER;
+ }
+
+ hdata->ddc_adpt = adpt;
+ of_node_put(np);
+
+ return 0;
}
static struct device_node *hdmi_legacy_phy_dt_binding(struct device *dev)
@@ -1781,7 +1799,7 @@ static struct device_node *hdmi_legacy_phy_dt_binding(struct device *dev)
static int hdmi_probe(struct platform_device *pdev)
{
- struct device_node *ddc_node, *phy_node;
+ struct device_node *phy_node;
struct device *dev = &pdev->dev;
struct hdmi_context *hdata;
struct resource *res;
@@ -1811,23 +1829,9 @@ static int hdmi_probe(struct platform_device *pdev)
return ret;
}
- ddc_node = hdmi_legacy_ddc_dt_binding(dev);
- if (ddc_node)
- goto out_get_ddc_adpt;
-
- ddc_node = of_parse_phandle(dev->of_node, "ddc", 0);
- if (!ddc_node) {
- DRM_ERROR("Failed to find ddc node in device tree\n");
- return -ENODEV;
- }
- of_node_put(dev->of_node);
-
-out_get_ddc_adpt:
- hdata->ddc_adpt = of_find_i2c_adapter_by_node(ddc_node);
- if (!hdata->ddc_adpt) {
- DRM_ERROR("Failed to get ddc i2c adapter by node\n");
- return -EPROBE_DEFER;
- }
+ ret = hdmi_get_ddc_adapter(hdata);
+ if (ret)
+ return ret;
phy_node = hdmi_legacy_phy_dt_binding(dev);
if (phy_node)
--
1.9.1
^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH v3 4/5] gpu: drm: exynos_hdmi: Move PHY logic into single function
2016-08-24 13:07 [PATCH v3 0/5] ARM: dts: exynos: Enable HDMI in Arndale Octa board Milo Kim
` (2 preceding siblings ...)
2016-08-24 13:07 ` [PATCH v3 3/5] gpu: drm: exynos_hdmi: Move DDC logic into single function Milo Kim
@ 2016-08-24 13:07 ` Milo Kim
2016-08-24 13:07 ` [PATCH v3 5/5] gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator bulk consumer Milo Kim
4 siblings, 0 replies; 11+ messages in thread
From: Milo Kim @ 2016-08-24 13:07 UTC (permalink / raw)
To: Kukjin Kim, Krzysztof Kozlowski, David Airlie
Cc: Inki Dae, Joonyoung Shim, Seung-Woo Kim, Kyungmin Park,
Rob Herring, devicetree, linux-arm-kernel, linux-samsung-soc,
linux-kernel, dri-devel, Milo Kim
Paring DT properties and getting PHY IO (memory mapped or I2C) in one function.
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
---
drivers/gpu/drm/exynos/exynos_hdmi.c | 63 +++++++++++++++++++-----------------
1 file changed, 33 insertions(+), 30 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 8d99b5d..249cb23 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1790,16 +1790,44 @@ static int hdmi_get_ddc_adapter(struct hdmi_context *hdata)
return 0;
}
-static struct device_node *hdmi_legacy_phy_dt_binding(struct device *dev)
+static int hdmi_get_phy_io(struct hdmi_context *hdata)
{
const char *compatible_str = "samsung,exynos4212-hdmiphy";
+ struct device_node *np;
+ int ret = 0;
+
+ np = of_find_compatible_node(NULL, NULL, compatible_str);
+ if (!np) {
+ np = of_parse_phandle(hdata->dev->of_node, "phy", 0);
+ if (!np) {
+ DRM_ERROR("Failed to find hdmiphy node in device tree\n");
+ return -ENODEV;
+ }
+ }
+
+ if (hdata->drv_data->is_apb_phy) {
+ hdata->regs_hdmiphy = of_iomap(np, 0);
+ if (!hdata->regs_hdmiphy) {
+ DRM_ERROR("failed to ioremap hdmi phy\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+ } else {
+ hdata->hdmiphy_port = of_find_i2c_device_by_node(np);
+ if (!hdata->hdmiphy_port) {
+ DRM_ERROR("Failed to get hdmi phy i2c client\n");
+ ret = -EPROBE_DEFER;
+ goto out;
+ }
+ }
- return of_find_compatible_node(NULL, NULL, compatible_str);
+out:
+ of_node_put(np);
+ return ret;
}
static int hdmi_probe(struct platform_device *pdev)
{
- struct device_node *phy_node;
struct device *dev = &pdev->dev;
struct hdmi_context *hdata;
struct resource *res;
@@ -1833,34 +1861,9 @@ static int hdmi_probe(struct platform_device *pdev)
if (ret)
return ret;
- phy_node = hdmi_legacy_phy_dt_binding(dev);
- if (phy_node)
- goto out_get_phy_port;
-
- phy_node = of_parse_phandle(dev->of_node, "phy", 0);
- if (!phy_node) {
- DRM_ERROR("Failed to find hdmiphy node in device tree\n");
- ret = -ENODEV;
+ ret = hdmi_get_phy_io(hdata);
+ if (ret)
goto err_ddc;
- }
- of_node_put(dev->of_node);
-
-out_get_phy_port:
- if (hdata->drv_data->is_apb_phy) {
- hdata->regs_hdmiphy = of_iomap(phy_node, 0);
- if (!hdata->regs_hdmiphy) {
- DRM_ERROR("failed to ioremap hdmi phy\n");
- ret = -ENOMEM;
- goto err_ddc;
- }
- } else {
- hdata->hdmiphy_port = of_find_i2c_device_by_node(phy_node);
- if (!hdata->hdmiphy_port) {
- DRM_ERROR("Failed to get hdmi phy i2c client\n");
- ret = -EPROBE_DEFER;
- goto err_ddc;
- }
- }
INIT_DELAYED_WORK(&hdata->hotplug_work, hdmi_hotplug_work_func);
--
1.9.1
^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH v3 5/5] gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator bulk consumer
2016-08-24 13:07 [PATCH v3 0/5] ARM: dts: exynos: Enable HDMI in Arndale Octa board Milo Kim
` (3 preceding siblings ...)
2016-08-24 13:07 ` [PATCH v3 4/5] gpu: drm: exynos_hdmi: Move PHY " Milo Kim
@ 2016-08-24 13:07 ` Milo Kim
2016-08-25 7:12 ` Andrzej Hajda
4 siblings, 1 reply; 11+ messages in thread
From: Milo Kim @ 2016-08-24 13:07 UTC (permalink / raw)
To: Kukjin Kim, Krzysztof Kozlowski, David Airlie
Cc: Inki Dae, Joonyoung Shim, Seung-Woo Kim, Kyungmin Park,
Rob Herring, devicetree, linux-arm-kernel, linux-samsung-soc,
linux-kernel, dri-devel, Milo Kim
The helper, devm_regulator_bulk_get() initializes the consumer as NULL,
so this code can be ignored.
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
---
drivers/gpu/drm/exynos/exynos_hdmi.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 249cb23..4e17877f 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1669,10 +1669,9 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
if (ret)
return ret;
- for (i = 0; i < ARRAY_SIZE(supply); ++i) {
+ for (i = 0; i < ARRAY_SIZE(supply); ++i)
hdata->regul_bulk[i].supply = supply[i];
- hdata->regul_bulk[i].consumer = NULL;
- }
+
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(supply), hdata->regul_bulk);
if (ret) {
if (ret != -EPROBE_DEFER)
--
1.9.1
^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for Arndale Octa board
2016-08-24 13:07 ` [PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for " Milo Kim
@ 2016-08-24 19:05 ` Krzysztof Kozlowski
2016-08-31 6:19 ` Milo Kim
0 siblings, 1 reply; 11+ messages in thread
From: Krzysztof Kozlowski @ 2016-08-24 19:05 UTC (permalink / raw)
To: Milo Kim
Cc: Kukjin Kim, Krzysztof Kozlowski, David Airlie, devicetree,
linux-samsung-soc, Joonyoung Shim, Seung-Woo Kim, linux-kernel,
dri-devel, Inki Dae, Kyungmin Park, Rob Herring,
linux-arm-kernel
On Wed, Aug 24, 2016 at 10:07:15PM +0900, Milo Kim wrote:
> * 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 <k.kozlowski@samsung.com>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-samsung-soc@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
> ---
> 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
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH v3 2/5] ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio'
2016-08-24 13:07 ` [PATCH v3 2/5] ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio' Milo Kim
@ 2016-08-24 19:13 ` Krzysztof Kozlowski
0 siblings, 0 replies; 11+ messages in thread
From: Krzysztof Kozlowski @ 2016-08-24 19:13 UTC (permalink / raw)
To: Milo Kim
Cc: Kukjin Kim, Krzysztof Kozlowski, David Airlie, devicetree,
linux-samsung-soc, Joonyoung Shim, Seung-Woo Kim, linux-kernel,
dri-devel, Inki Dae, Kyungmin Park, Rob Herring,
linux-arm-kernel
On Wed, Aug 24, 2016 at 10:07:16PM +0900, Milo Kim wrote:
> This patch enables getting a HPD GPIO descriptor quickly.
> The exynos-hdmi driver uses "hpd" for HDMI hot plug detection.
>
> static int hdmi_resources_init(struct hdmi_context *hdata)
> {
> ...
> hdata->hpd_gpio = devm_gpiod_get(dev, "hpd", GPIOD_IN);
> ...
> }
>
> This calls 'of_find_gpio()' and it generates the GPIO consumer ID by referring
> GPIO suffix. So 'hpd-gpios' is preferred on getting a GPIO descriptor.
>
> However, if the device tree uses 'hpd-gpio', then the exynos-hdmi driver
> always retries to get a GPIO descriptor because the first GPIO suffix is not
> 'gpio' but 'gpios'. So you always see the debug message below.
>
> of_get_named_gpiod_flags: can't parse 'hpd-gpios' property of node '/soc/hdmi@14530000[0]'
>
Thanks for fixing this, applied!
BR,
Krzysztof
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH v3 3/5] gpu: drm: exynos_hdmi: Move DDC logic into single function
2016-08-24 13:07 ` [PATCH v3 3/5] gpu: drm: exynos_hdmi: Move DDC logic into single function Milo Kim
@ 2016-08-25 7:03 ` Andrzej Hajda
0 siblings, 0 replies; 11+ messages in thread
From: Andrzej Hajda @ 2016-08-25 7:03 UTC (permalink / raw)
To: Milo Kim, Kukjin Kim, Krzysztof Kozlowski, David Airlie
Cc: devicetree, linux-samsung-soc, Seung-Woo Kim, linux-kernel,
dri-devel, Kyungmin Park, Rob Herring, linux-arm-kernel
On 08/24/2016 03:07 PM, Milo Kim wrote:
> Paring DT properties and getting the I2C adapter in one function.
>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Inki Dae <inki.dae@samsung.com>
> Cc: Joonyoung Shim <jy0922.shim@samsung.com>
> Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
> Cc: Kyungmin Park <kyungmin.park@samsung.com>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-samsung-soc@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
> ---
> drivers/gpu/drm/exynos/exynos_hdmi.c | 46 ++++++++++++++++++++----------------
> 1 file changed, 25 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
> index 2275efe..8d99b5d 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
> @@ -1760,16 +1760,34 @@ static const struct component_ops hdmi_component_ops = {
> .unbind = hdmi_unbind,
> };
>
> -static struct device_node *hdmi_legacy_ddc_dt_binding(struct device *dev)
> +static int hdmi_get_ddc_adapter(struct hdmi_context *hdata)
> {
> const char *compatible_str = "samsung,exynos4210-hdmiddc";
> struct device_node *np;
> + struct i2c_adapter *adpt;
>
> np = of_find_compatible_node(NULL, NULL, compatible_str);
> if (np)
> - return of_get_next_parent(np);
> + np = of_get_next_parent(np);
> + else
> + np = of_parse_phandle(hdata->dev->of_node, "ddc", 0);
> +
> + if (!np) {
> + DRM_ERROR("Failed to find ddc node in device tree\n");
> + return -ENODEV;
> + }
>
> - return NULL;
> + adpt = of_find_i2c_adapter_by_node(np);
You can put of_node_put here, instead of duplicating it on both
execution paths.
> + if (!adpt) {
> + DRM_ERROR("Failed to get ddc i2c adapter by node\n");
In case of probe deferring DRM_INFO should be enough, or even DRM_DEBUG.
> + of_node_put(np);
> + return -EPROBE_DEFER;
> + }
> +
> + hdata->ddc_adpt = adpt;
> + of_node_put(np);
> +
> + return 0;
> }
>
> static struct device_node *hdmi_legacy_phy_dt_binding(struct device *dev)
> @@ -1781,7 +1799,7 @@ static struct device_node *hdmi_legacy_phy_dt_binding(struct device *dev)
>
> static int hdmi_probe(struct platform_device *pdev)
> {
> - struct device_node *ddc_node, *phy_node;
> + struct device_node *phy_node;
> struct device *dev = &pdev->dev;
> struct hdmi_context *hdata;
> struct resource *res;
> @@ -1811,23 +1829,9 @@ static int hdmi_probe(struct platform_device *pdev)
> return ret;
> }
>
> - ddc_node = hdmi_legacy_ddc_dt_binding(dev);
> - if (ddc_node)
> - goto out_get_ddc_adpt;
> -
> - ddc_node = of_parse_phandle(dev->of_node, "ddc", 0);
> - if (!ddc_node) {
> - DRM_ERROR("Failed to find ddc node in device tree\n");
> - return -ENODEV;
> - }
> - of_node_put(dev->of_node);
> -
> -out_get_ddc_adpt:
> - hdata->ddc_adpt = of_find_i2c_adapter_by_node(ddc_node);
> - if (!hdata->ddc_adpt) {
> - DRM_ERROR("Failed to get ddc i2c adapter by node\n");
> - return -EPROBE_DEFER;
> - }
> + ret = hdmi_get_ddc_adapter(hdata);
> + if (ret)
> + return ret;
>
> phy_node = hdmi_legacy_phy_dt_binding(dev);
> if (phy_node)
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH v3 5/5] gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator bulk consumer
2016-08-24 13:07 ` [PATCH v3 5/5] gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator bulk consumer Milo Kim
@ 2016-08-25 7:12 ` Andrzej Hajda
0 siblings, 0 replies; 11+ messages in thread
From: Andrzej Hajda @ 2016-08-25 7:12 UTC (permalink / raw)
To: Milo Kim, Kukjin Kim, Krzysztof Kozlowski, David Airlie
Cc: devicetree, linux-samsung-soc, Seung-Woo Kim, linux-kernel,
dri-devel, Kyungmin Park, Rob Herring, linux-arm-kernel
On 08/24/2016 03:07 PM, Milo Kim wrote:
> The helper, devm_regulator_bulk_get() initializes the consumer as NULL,
> so this code can be ignored.
>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Inki Dae <inki.dae@samsung.com>
> Cc: Joonyoung Shim <jy0922.shim@samsung.com>
> Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
> Cc: Kyungmin Park <kyungmin.park@samsung.com>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-samsung-soc@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
--
Regards
Andrzej
> ---
> drivers/gpu/drm/exynos/exynos_hdmi.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
> index 249cb23..4e17877f 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
> @@ -1669,10 +1669,9 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
> if (ret)
> return ret;
>
> - for (i = 0; i < ARRAY_SIZE(supply); ++i) {
> + for (i = 0; i < ARRAY_SIZE(supply); ++i)
> hdata->regul_bulk[i].supply = supply[i];
> - hdata->regul_bulk[i].consumer = NULL;
> - }
> +
> ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(supply), hdata->regul_bulk);
> if (ret) {
> if (ret != -EPROBE_DEFER)
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for Arndale Octa board
2016-08-24 19:05 ` Krzysztof Kozlowski
@ 2016-08-31 6:19 ` Milo Kim
0 siblings, 0 replies; 11+ messages in thread
From: Milo Kim @ 2016-08-31 6:19 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Kukjin Kim, Krzysztof Kozlowski, David Airlie, devicetree,
linux-samsung-soc, Joonyoung Shim, Seung-Woo Kim, linux-kernel,
dri-devel, Inki Dae, Kyungmin Park, Rob Herring,
linux-arm-kernel
Hi Krzysztof,
On 08/25/2016 04:05 AM, Krzysztof Kozlowski wrote:
> First of all - it looks like these DTS patches do not depend on DRM
> part, do they?
I just sent the v4 patch for DTS. DRM patch-set was sent separately.
Thanks for your advise.
Best regards,
Milo
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2016-08-31 6:19 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-08-24 13:07 [PATCH v3 0/5] ARM: dts: exynos: Enable HDMI in Arndale Octa board Milo Kim
2016-08-24 13:07 ` [PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for " Milo Kim
2016-08-24 19:05 ` Krzysztof Kozlowski
2016-08-31 6:19 ` Milo Kim
2016-08-24 13:07 ` [PATCH v3 2/5] ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio' Milo Kim
2016-08-24 19:13 ` Krzysztof Kozlowski
2016-08-24 13:07 ` [PATCH v3 3/5] gpu: drm: exynos_hdmi: Move DDC logic into single function Milo Kim
2016-08-25 7:03 ` Andrzej Hajda
2016-08-24 13:07 ` [PATCH v3 4/5] gpu: drm: exynos_hdmi: Move PHY " Milo Kim
2016-08-24 13:07 ` [PATCH v3 5/5] gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator bulk consumer Milo Kim
2016-08-25 7:12 ` Andrzej Hajda
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