62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
140 lines
3.9 KiB
Diff
140 lines
3.9 KiB
Diff
From 95709d5c58c57f31a70e96fe9ebb8d34c046f877 Mon Sep 17 00:00:00 2001
|
|
From: James Hughes <james.hughes@raspberrypi.org>
|
|
Date: Tue, 24 Sep 2019 18:26:55 +0100
|
|
Subject: [PATCH] Rename HDMI ALSA device names, check for enable state
|
|
|
|
HDMI Alsa devices renamed to match names used by DRM, to
|
|
HDMI 1 and HDMI 2
|
|
|
|
Check for which HDMI devices are connected and only create
|
|
devices for those that are present.
|
|
|
|
The rename of the devices might cause some backwards compatibility
|
|
issues, but since this particular part of the driver needs to be
|
|
specifically enabled, I suspect the number of people who will see
|
|
the problem will be very small.
|
|
|
|
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
|
|
---
|
|
.../vc04_services/bcm2835-audio/bcm2835.c | 70 +++++++++++++++++--
|
|
1 file changed, 63 insertions(+), 7 deletions(-)
|
|
|
|
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
|
|
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
|
|
@@ -9,8 +9,9 @@
|
|
#include <linux/of.h>
|
|
|
|
#include "bcm2835.h"
|
|
+#include <soc/bcm2835/raspberrypi-firmware.h>
|
|
|
|
-static bool enable_hdmi;
|
|
+static bool enable_hdmi, enable_hdmi0, enable_hdmi1;
|
|
static bool enable_headphones;
|
|
static bool enable_compat_alsa = true;
|
|
|
|
@@ -115,8 +116,8 @@ static struct bcm2835_audio_driver bcm28
|
|
.name = "bcm2835_hdmi",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
- .shortname = "bcm2835 HDMI",
|
|
- .longname = "bcm2835 HDMI",
|
|
+ .shortname = "bcm2835 HDMI 1",
|
|
+ .longname = "bcm2835 HDMI 1",
|
|
.minchannels = 1,
|
|
.newpcm = bcm2835_audio_simple_newpcm,
|
|
.newctl = snd_bcm2835_new_hdmi_ctl,
|
|
@@ -128,8 +129,8 @@ static struct bcm2835_audio_driver bcm28
|
|
.name = "bcm2835_hdmi",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
- .shortname = "bcm2835 HDMI 1",
|
|
- .longname = "bcm2835 HDMI 1",
|
|
+ .shortname = "bcm2835 HDMI 2",
|
|
+ .longname = "bcm2835 HDMI 2",
|
|
.minchannels = 1,
|
|
.newpcm = bcm2835_audio_simple_newpcm,
|
|
.newctl = snd_bcm2835_new_hdmi_ctl,
|
|
@@ -161,11 +162,11 @@ static struct bcm2835_audio_drivers chil
|
|
},
|
|
{
|
|
.audio_driver = &bcm2835_audio_hdmi0,
|
|
- .is_enabled = &enable_hdmi,
|
|
+ .is_enabled = &enable_hdmi0,
|
|
},
|
|
{
|
|
.audio_driver = &bcm2835_audio_hdmi1,
|
|
- .is_enabled = &enable_hdmi,
|
|
+ .is_enabled = &enable_hdmi1,
|
|
},
|
|
{
|
|
.audio_driver = &bcm2835_audio_headphones,
|
|
@@ -312,6 +313,53 @@ static int snd_add_child_devices(struct
|
|
return 0;
|
|
}
|
|
|
|
+static void set_hdmi_enables(struct device *dev)
|
|
+{
|
|
+ struct device_node *firmware_node;
|
|
+ struct rpi_firmware *firmware;
|
|
+ u32 num_displays, i, display_id;
|
|
+ int ret;
|
|
+
|
|
+ firmware_node = of_parse_phandle(dev->of_node, "brcm,firmware", 0);
|
|
+ firmware = rpi_firmware_get(firmware_node);
|
|
+
|
|
+ if (!firmware)
|
|
+ return;
|
|
+
|
|
+ of_node_put(firmware_node);
|
|
+
|
|
+ ret = rpi_firmware_property(firmware,
|
|
+ RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS,
|
|
+ &num_displays, sizeof(u32));
|
|
+
|
|
+ if (ret)
|
|
+ return;
|
|
+
|
|
+ for (i = 0; i < num_displays; i++) {
|
|
+ display_id = i;
|
|
+ ret = rpi_firmware_property(firmware,
|
|
+ RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_ID,
|
|
+ &display_id, sizeof(display_id));
|
|
+ if (!ret) {
|
|
+ if (display_id == 2)
|
|
+ enable_hdmi0 = true;
|
|
+ if (display_id == 7)
|
|
+ enable_hdmi1 = true;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ if (!enable_hdmi0 && enable_hdmi1) {
|
|
+ /* Swap them over and reassign route. This means
|
|
+ * that if we only have one connected, it is always named
|
|
+ * HDMI1, irrespective of if its on port HDMI0 or HDMI1.
|
|
+ * This should match with the naming of HDMI ports in DRM
|
|
+ */
|
|
+ enable_hdmi0 = true;
|
|
+ enable_hdmi1 = false;
|
|
+ bcm2835_audio_hdmi0.route = AUDIO_DEST_HDMI1;
|
|
+ }
|
|
+}
|
|
+
|
|
static int snd_bcm2835_alsa_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
@@ -332,6 +380,14 @@ static int snd_bcm2835_alsa_probe(struct
|
|
numchans);
|
|
}
|
|
|
|
+ if (!enable_compat_alsa) {
|
|
+ set_hdmi_enables(dev);
|
|
+ // In this mode, always enable analog output
|
|
+ enable_headphones = true;
|
|
+ } else {
|
|
+ enable_hdmi0 = enable_hdmi;
|
|
+ }
|
|
+
|
|
err = bcm2835_devm_add_vchi_ctx(dev);
|
|
if (err)
|
|
return err;
|