diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0318-Rename-HDMI-ALSA-device-names-check-for-enable-state.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0318-Rename-HDMI-ALSA-device-names-check-for-enable-state.patch | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0318-Rename-HDMI-ALSA-device-names-check-for-enable-state.patch b/target/linux/bcm27xx/patches-5.4/950-0318-Rename-HDMI-ALSA-device-names-check-for-enable-state.patch deleted file mode 100644 index 8ec836621d..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0318-Rename-HDMI-ALSA-device-names-check-for-enable-state.patch +++ /dev/null @@ -1,139 +0,0 @@ -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; |