mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 10:39:04 +00:00
8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
79 lines
2.1 KiB
Diff
79 lines
2.1 KiB
Diff
From 263d69b2c6ff1d1de6c3788d1b01760d4a1ebd9d Mon Sep 17 00:00:00 2001
|
|
From: Maxime Ripard <maxime@cerno.tech>
|
|
Date: Thu, 29 Apr 2021 11:08:52 +0200
|
|
Subject: [PATCH] drm/vc4: hdmi: Rely on interrupts to handle hotplug
|
|
|
|
DRM currently polls for the HDMI connector status every 10s, which can
|
|
be an issue when we connect/disconnect a display quickly or the device
|
|
on the other end only issues a hotplug pulse (for example on EDID
|
|
change).
|
|
|
|
Switch the driver to rely on the internal controller logic for the
|
|
BCM2711/RPi4.
|
|
|
|
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_hdmi.c | 44 ++++++++++++++++++++++++++++++++++
|
|
1 file changed, 44 insertions(+)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
@@ -1689,6 +1689,46 @@ static int vc4_hdmi_audio_init(struct vc
|
|
|
|
}
|
|
|
|
+static irqreturn_t vc4_hdmi_hpd_irq_thread(int irq, void *priv)
|
|
+{
|
|
+ struct vc4_hdmi *vc4_hdmi = priv;
|
|
+ struct drm_device *dev = vc4_hdmi->connector.dev;
|
|
+
|
|
+ if (dev)
|
|
+ drm_kms_helper_hotplug_event(dev);
|
|
+
|
|
+ return IRQ_HANDLED;
|
|
+}
|
|
+
|
|
+static int vc4_hdmi_hotplug_init(struct vc4_hdmi *vc4_hdmi)
|
|
+{
|
|
+ struct platform_device *pdev = vc4_hdmi->pdev;
|
|
+ struct device *dev = &pdev->dev;
|
|
+ int ret;
|
|
+
|
|
+ if (vc4_hdmi->variant->external_irq_controller) {
|
|
+ ret = devm_request_threaded_irq(dev,
|
|
+ platform_get_irq_byname(pdev, "hpd-connected"),
|
|
+ NULL,
|
|
+ vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT,
|
|
+ "vc4 hdmi hpd connected", vc4_hdmi);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ ret = devm_request_threaded_irq(dev,
|
|
+ platform_get_irq_byname(pdev, "hpd-removed"),
|
|
+ NULL,
|
|
+ vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT,
|
|
+ "vc4 hdmi hpd disconnected", vc4_hdmi);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ connector->polled = DRM_CONNECTOR_POLL_HPD;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
#ifdef CONFIG_DRM_VC4_HDMI_CEC
|
|
static irqreturn_t vc4_cec_irq_handler_rx_thread(int irq, void *priv)
|
|
{
|
|
@@ -2303,6 +2343,10 @@ static int vc4_hdmi_bind(struct device *
|
|
if (ret)
|
|
goto err_destroy_encoder;
|
|
|
|
+ ret = vc4_hdmi_hotplug_init(vc4_hdmi);
|
|
+ if (ret)
|
|
+ goto err_destroy_conn;
|
|
+
|
|
ret = vc4_hdmi_cec_init(vc4_hdmi);
|
|
if (ret)
|
|
goto err_destroy_conn;
|