mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 17:48:58 +00:00
866b1bb2b3
No manual changes needed.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 19305aff72)
86 lines
2.6 KiB
Diff
86 lines
2.6 KiB
Diff
From 3542a39c5655242ba89bb4f51e9237cbb7e8cf09 Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
Date: Fri, 19 Nov 2021 16:16:40 +0000
|
|
Subject: [PATCH] drm/vc4: Ensure vc4_hdmi doesn't use 2711 HPD
|
|
registers on Pi0-3
|
|
|
|
The existing logic was flawed in that it could try reading the
|
|
2711 specific registers for HPD on a CM1/3 where the HPD GPIO
|
|
hadn't been defined in DT.
|
|
|
|
Ensure we don't do the 2711 register read on invalid hardware,
|
|
and then
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_hdmi.c | 24 ++++++++++++++++--------
|
|
drivers/gpu/drm/vc4/vc4_hdmi.h | 3 +++
|
|
2 files changed, 19 insertions(+), 8 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
@@ -206,14 +206,8 @@ vc4_hdmi_connector_detect(struct drm_con
|
|
if (gpiod_get_value_cansleep(vc4_hdmi->hpd_gpio))
|
|
connected = true;
|
|
} else {
|
|
- unsigned long flags;
|
|
- u32 hotplug;
|
|
-
|
|
- spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
|
|
- hotplug = HDMI_READ(HDMI_HOTPLUG);
|
|
- spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
|
|
-
|
|
- if (hotplug & VC4_HDMI_HOTPLUG_CONNECTED)
|
|
+ if (vc4_hdmi->variant->hp_detect &&
|
|
+ vc4_hdmi->variant->hp_detect(vc4_hdmi))
|
|
connected = true;
|
|
}
|
|
|
|
@@ -1356,6 +1350,18 @@ static u32 vc5_hdmi_channel_map(struct v
|
|
return channel_map;
|
|
}
|
|
|
|
+static bool vc5_hdmi_hp_detect(struct vc4_hdmi *vc4_hdmi)
|
|
+{
|
|
+ unsigned long flags;
|
|
+ u32 hotplug;
|
|
+
|
|
+ spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
|
|
+ hotplug = HDMI_READ(HDMI_HOTPLUG);
|
|
+ spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
|
|
+
|
|
+ return !!(hotplug & VC4_HDMI_HOTPLUG_CONNECTED);
|
|
+}
|
|
+
|
|
/* HDMI audio codec callbacks */
|
|
static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *vc4_hdmi,
|
|
unsigned int samplerate)
|
|
@@ -2780,6 +2786,7 @@ static const struct vc4_hdmi_variant bcm
|
|
.phy_rng_disable = vc5_hdmi_phy_rng_disable,
|
|
.channel_map = vc5_hdmi_channel_map,
|
|
.supports_hdr = true,
|
|
+ .hp_detect = vc5_hdmi_hp_detect,
|
|
};
|
|
|
|
static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
|
|
@@ -2808,6 +2815,7 @@ static const struct vc4_hdmi_variant bcm
|
|
.phy_rng_disable = vc5_hdmi_phy_rng_disable,
|
|
.channel_map = vc5_hdmi_channel_map,
|
|
.supports_hdr = true,
|
|
+ .hp_detect = vc5_hdmi_hp_detect,
|
|
};
|
|
|
|
static const struct of_device_id vc4_hdmi_dt_match[] = {
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
|
|
@@ -102,6 +102,9 @@ struct vc4_hdmi_variant {
|
|
|
|
/* Enables HDR metadata */
|
|
bool supports_hdr;
|
|
+
|
|
+ /* Callback for hardware specific hotplug detect */
|
|
+ bool (*hp_detect)(struct vc4_hdmi *vc4_hdmi);
|
|
};
|
|
|
|
/* HDMI audio information */
|