Add a property to the hdmi node so we can specify the HDMI version in
the device tree instead of just defaulting to v1.4 with the existence of
the dt node.
Signed-off-by: Sean Paul <seanp...@chromium.org>
---
.../devicetree/bindings/drm/exynos/hdmi.txt | 3 +++
drivers/gpu/drm/exynos/exynos_hdmi.c | 19 ++++++++++---------
2 files changed, 13 insertions(+), 9 deletions(-)
diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
index 589edee..d1c7d91 100644
--- a/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
+++ b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
@@ -11,6 +11,8 @@ Required properties:
c) pin function mode.
d) optional flags and pull up/down.
e) drive strength.
+- samsung,supports-hdmi-1.4: Define if device supports HDMI v1.4
+- samsung,supports-hdmi-1.3: Define if device supports HDMI v1.3
Example:
@@ -19,4 +21,5 @@ Example:
reg = <0x14530000 0x100000>;
interrupts = <0 95 0>;
hpd-gpio = <&gpx3 7 0xf 1 3>;
+ samsung,supports-hdmi-1.4;
};
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c
b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 2c46b6c..9834ae5 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2444,7 +2444,6 @@ static struct platform_device_id hdmi_driver_types[] = {
static struct of_device_id hdmi_match_types[] = {
{
.compatible = "samsung,exynos5-hdmi",
- .data = (void *)HDMI_TYPE14,
}, {
/* end node */
}
@@ -2498,16 +2497,18 @@ static int __devinit hdmi_probe(struct platform_device
*pdev)
platform_set_drvdata(pdev, drm_hdmi_ctx);
- if (dev->of_node) {
- const struct of_device_id *match;
- match = of_match_node(of_match_ptr(hdmi_match_types),
- pdev->dev.of_node);
- if (match == NULL)
- return -ENODEV;
- hdata->type = (enum hdmi_type)match->data;
- } else {
+ if (!dev->of_node) {
hdata->type = (enum hdmi_type)platform_get_device_id
(pdev)->driver_data;
+ } else if (of_get_property(dev->of_node, "samsung,supports-hdmi-1.4",
+ NULL)) {
+ hdata->type = HDMI_TYPE14;
+ } else if (of_get_property(dev->of_node, "samsung,supports-hdmi-1.3",
+ NULL)) {
+ hdata->type = HDMI_TYPE13;
+ } else {
+ DRM_ERROR("Could not resolve HDMI version support\n");
+ return -ENODEV;
}
hdata->hpd_gpio = pdata->hpd_gpio;
--
1.7.7.3
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