From 166ed8becb36a305ff42390997751c052b8287b4 Mon Sep 17 00:00:00 2001
From: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Date: Wed, 18 Dec 2019 01:07:53 +0200
Subject: drm/bridge: lvds-codec: Add "lvds-decoder" support
Git-commit: e6f607bb2ba8aac719cf6abdf1d9dd8dae0c63e5
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Add support for transparent LVDS decoders by adding a new
compatible string ("lvds-decoder") to the driver.
This patch also adds member connector_type to struct lvds_codec,
and that's because LVDS decoders have a different connector type
from LVDS encoders. We fill this new member up with the data
matching the compatible string.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[Fix pointer to int cast warning]
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191217230753.2999-1-laurent.pinchart+renesas@ideasonboard.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/bridge/lvds-codec.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/bridge/lvds-codec.c b/drivers/gpu/drm/bridge/lvds-codec.c
index b5801a287a0a..d072a76b20d9 100644
--- a/drivers/gpu/drm/bridge/lvds-codec.c
+++ b/drivers/gpu/drm/bridge/lvds-codec.c
@@ -7,6 +7,7 @@
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/platform_device.h>
@@ -17,6 +18,7 @@ struct lvds_codec {
struct drm_bridge bridge;
struct drm_bridge *panel_bridge;
struct gpio_desc *powerdown_gpio;
+ u32 connector_type;
};
static int lvds_codec_attach(struct drm_bridge *bridge)
@@ -65,6 +67,7 @@ static int lvds_codec_probe(struct platform_device *pdev)
if (!lvds_codec)
return -ENOMEM;
+ lvds_codec->connector_type = (uintptr_t)of_device_get_match_data(dev);
lvds_codec->powerdown_gpio = devm_gpiod_get_optional(dev, "powerdown",
GPIOD_OUT_HIGH);
if (IS_ERR(lvds_codec->powerdown_gpio)) {
@@ -105,7 +108,7 @@ static int lvds_codec_probe(struct platform_device *pdev)
lvds_codec->panel_bridge =
devm_drm_panel_bridge_add_typed(dev, panel,
- DRM_MODE_CONNECTOR_LVDS);
+ lvds_codec->connector_type);
if (IS_ERR(lvds_codec->panel_bridge))
return PTR_ERR(lvds_codec->panel_bridge);
@@ -133,8 +136,18 @@ static int lvds_codec_remove(struct platform_device *pdev)
}
static const struct of_device_id lvds_codec_match[] = {
- { .compatible = "lvds-encoder" },
- { .compatible = "thine,thc63lvdm83d" },
+ {
+ .compatible = "lvds-decoder",
+ .data = (void *)DRM_MODE_CONNECTOR_DPI,
+ },
+ {
+ .compatible = "lvds-encoder",
+ .data = (void *)DRM_MODE_CONNECTOR_LVDS,
+ },
+ {
+ .compatible = "thine,thc63lvdm83d",
+ .data = (void *)DRM_MODE_CONNECTOR_LVDS,
+ },
{},
};
MODULE_DEVICE_TABLE(of, lvds_codec_match);
--
2.28.0