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drm/bridge: maxim-max96745: Add extcon support

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Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
Change-Id: I3efe31517b2da16531b4afa7884247d6ce54504e
This commit is contained in:
Wyon Bi
2022-06-14 10:00:38 +00:00
committed by Tao Huang
parent d9a61536e3
commit 9a01bbc010
1 changed files with 23 additions and 0 deletions
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23
drivers/gpu/drm/bridge/maxim-max96745.c
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@@ -18,6 +18,7 @@
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/extcon-provider.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/gpio/consumer.h>
@@ -36,10 +37,16 @@ struct max96745_bridge {
int irq;
atomic_t triggered;
} lock;
struct extcon_dev *extcon;
};
#define to_max96745_bridge(x) container_of(x, struct max96745_bridge, x)
static const unsigned int max96745_bridge_cable[] = {
EXTCON_JACK_VIDEO_OUT,
EXTCON_NONE,
};
static int max96745_bridge_connector_get_modes(struct drm_connector *connector)
{
struct max96745_bridge *ser = to_max96745_bridge(connector);
@@ -128,9 +135,11 @@ static int max96745_bridge_attach(struct drm_bridge *bridge,
if (max96745_bridge_link_locked(ser)) {
connector->status = connector_status_connected;
extcon_set_state(ser->extcon, EXTCON_JACK_VIDEO_OUT, true);
enable_irq(ser->lock.irq);
} else {
connector->status = connector_status_disconnected;
extcon_set_state(ser->extcon, EXTCON_JACK_VIDEO_OUT, false);
}
drm_connector_attach_encoder(connector, bridge->encoder);
@@ -156,6 +165,8 @@ static void max96745_bridge_enable(struct drm_bridge *bridge)
if (ser->panel)
drm_panel_enable(ser->panel);
extcon_set_state_sync(ser->extcon, EXTCON_JACK_VIDEO_OUT, true);
enable_irq(ser->lock.irq);
}
@@ -165,6 +176,8 @@ static void max96745_bridge_disable(struct drm_bridge *bridge)
disable_irq(ser->lock.irq);
extcon_set_state_sync(ser->extcon, EXTCON_JACK_VIDEO_OUT, false);
if (ser->panel)
drm_panel_disable(ser->panel);
@@ -246,6 +259,16 @@ static int max96745_bridge_probe(struct platform_device *pdev)
return dev_err_probe(dev, PTR_ERR(ser->lock.gpio),
"failed to get lock GPIO\n");
ser->extcon = devm_extcon_dev_allocate(dev, max96745_bridge_cable);
if (IS_ERR(ser->extcon))
return dev_err_probe(dev, PTR_ERR(ser->extcon),
"failed to allocate extcon device\n");
ret = devm_extcon_dev_register(dev, ser->extcon);
if (ret)
return dev_err_probe(dev, ret,
"failed to register extcon device\n");
regmap_update_bits(ser->regmap, 0x7070, MAX_LANE_COUNT,
FIELD_PREP(MAX_LANE_COUNT, 0x04));
regmap_update_bits(ser->regmap, 0x7074, MAX_LINK_RATE,