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authorLinus Torvalds <torvalds@linux-foundation.org>2020-04-03 01:50:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-03 01:50:04 +0300
commit848960e576dafc8ed54c691b2f70b92e1fdea9ba (patch)
tree27ea80003da03b81f0b188d3712f0194745126d9 /drivers/gpu/drm/mediatek/mtk_hdmi.c
parentbc3b3f4bfbded031a11c4284106adddbfacd05bb (diff)
parent5c6cd7021a05a02fcf37f360592d7c18d4d807fb (diff)
downloadlinux-848960e576dafc8ed54c691b2f70b92e1fdea9ba.tar.xz
Merge tag 'sound-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai: "This became again a busy development cycle. There are few ALSA core updates (merely API cleanups and sparse fixes), with the majority of other changes are found in ASoC scene. Here are some highlights: ALSA core: - More helper macros for sparse warning fixes (e.g. bitwise types) - Slight optimization of PCM OSS locks - Make common handling for PCM / compress buffers (for SOF) ASoC: - Lots of code refactoring and modernization for (still ongoing) componentization works - Conversion of SND_SOC_ALL_CODECS to use imply - Continued refactoring and fixing of the Intel SOF/SST support, including the initial (but still incomplete) SoundWire support - SoundWire and more advanced clocking support for Realtek RT5682 - Support for amlogic GX, Meson 8, Meson 8B and T9015 DAC, Broadcom DSL/PON, Ingenic JZ4760 and JZ4770, Realtek RL6231, and TI TAS2563 and TLV320ADCX140 HD-audio: - Optimizations in HDMI jack handling - A few new quirks and fixups for Realtek codecs USB-audio: - Delayed registration support - New quirks for Motu, Kingston, Presonus" * tag 'sound-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (415 commits) ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor Revert "ALSA: uapi: Drop asound.h inclusion from asoc.h" ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 ALSA: doc: Document PC Beep Hidden Register on Realtek ALC256 ALSA: hda/realtek - a fake key event is triggered by running shutup ALSA: hda: default enable CA0132 DSP support ASoC: amd: acp3x-pcm-dma: clean up two indentation issues ASoC: tlv320adcx140: Remove undocumented property ASoC: Intel: sof_sdw: Add Volteer support with RT5682 SNDW helper function ASoC: Intel: common: add match table for TGL RT5682 SoundWire driver ASoC: Intel: boards: add sof_sdw machine driver ASoC: Intel: soc-acpi: update topology and driver name for SoundWire platforms ASoC: rt5682: move DAI clock registry to I2S mode ASoC: pxa: magician: convert to use i2c_new_client_device() ASoC: SOF: Intel: hda-ctrl: add reset cycle before parsing capabilities Asoc: SOF: Intel: hda: check SoundWire wakeen interrupt in irq thread ASoC: SOF: Intel: hda: add WAKEEN interrupt support for SoundWire ASoC: SOF: Intel: hda: add parameter to control SoundWire clock stop quirks ASoC: SOF: Intel: hda: merge IPC, stream and SoundWire interrupt handlers ...
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_hdmi.c')
-rw-r--r--drivers/gpu/drm/mediatek/mtk_hdmi.c54
1 files changed, 48 insertions, 6 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index a8b20557539b..ff43a3d80410 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -12,6 +12,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mfd/syscon.h>
+#include <linux/mutex.h>
#include <linux/of_platform.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
@@ -169,6 +170,9 @@ struct mtk_hdmi {
bool audio_enable;
bool powered;
bool enabled;
+ hdmi_codec_plugged_cb plugged_cb;
+ struct device *codec_dev;
+ struct mutex update_plugged_status_lock;
};
static inline struct mtk_hdmi *hdmi_ctx_from_bridge(struct drm_bridge *b)
@@ -1194,13 +1198,26 @@ static void mtk_hdmi_clk_disable_audio(struct mtk_hdmi *hdmi)
clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_SPDIF]);
}
+static enum drm_connector_status
+mtk_hdmi_update_plugged_status(struct mtk_hdmi *hdmi)
+{
+ bool connected;
+
+ mutex_lock(&hdmi->update_plugged_status_lock);
+ connected = mtk_cec_hpd_high(hdmi->cec_dev);
+ if (hdmi->plugged_cb && hdmi->codec_dev)
+ hdmi->plugged_cb(hdmi->codec_dev, connected);
+ mutex_unlock(&hdmi->update_plugged_status_lock);
+
+ return connected ?
+ connector_status_connected : connector_status_disconnected;
+}
+
static enum drm_connector_status hdmi_conn_detect(struct drm_connector *conn,
bool force)
{
struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
-
- return mtk_cec_hpd_high(hdmi->cec_dev) ?
- connector_status_connected : connector_status_disconnected;
+ return mtk_hdmi_update_plugged_status(hdmi);
}
static void hdmi_conn_destroy(struct drm_connector *conn)
@@ -1657,20 +1674,39 @@ static int mtk_hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf,
return 0;
}
+static int mtk_hdmi_audio_hook_plugged_cb(struct device *dev, void *data,
+ hdmi_codec_plugged_cb fn,
+ struct device *codec_dev)
+{
+ struct mtk_hdmi *hdmi = data;
+
+ mutex_lock(&hdmi->update_plugged_status_lock);
+ hdmi->plugged_cb = fn;
+ hdmi->codec_dev = codec_dev;
+ mutex_unlock(&hdmi->update_plugged_status_lock);
+
+ mtk_hdmi_update_plugged_status(hdmi);
+
+ return 0;
+}
+
static const struct hdmi_codec_ops mtk_hdmi_audio_codec_ops = {
.hw_params = mtk_hdmi_audio_hw_params,
.audio_startup = mtk_hdmi_audio_startup,
.audio_shutdown = mtk_hdmi_audio_shutdown,
.digital_mute = mtk_hdmi_audio_digital_mute,
.get_eld = mtk_hdmi_audio_get_eld,
+ .hook_plugged_cb = mtk_hdmi_audio_hook_plugged_cb,
};
-static void mtk_hdmi_register_audio_driver(struct device *dev)
+static int mtk_hdmi_register_audio_driver(struct device *dev)
{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
struct hdmi_codec_pdata codec_data = {
.ops = &mtk_hdmi_audio_codec_ops,
.max_i2s_channels = 2,
.i2s = 1,
+ .data = hdmi,
};
struct platform_device *pdev;
@@ -1678,9 +1714,10 @@ static void mtk_hdmi_register_audio_driver(struct device *dev)
PLATFORM_DEVID_AUTO, &codec_data,
sizeof(codec_data));
if (IS_ERR(pdev))
- return;
+ return PTR_ERR(pdev);
DRM_INFO("%s driver bound to HDMI\n", HDMI_CODEC_DRV_NAME);
+ return 0;
}
static int mtk_drm_hdmi_probe(struct platform_device *pdev)
@@ -1706,6 +1743,7 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev)
return ret;
}
+ mutex_init(&hdmi->update_plugged_status_lock);
platform_set_drvdata(pdev, hdmi);
ret = mtk_hdmi_output_init(hdmi);
@@ -1714,7 +1752,11 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev)
return ret;
}
- mtk_hdmi_register_audio_driver(dev);
+ ret = mtk_hdmi_register_audio_driver(dev);
+ if (ret) {
+ dev_err(dev, "Failed to register audio driver: %d\n", ret);
+ return ret;
+ }
hdmi->bridge.funcs = &mtk_hdmi_bridge_funcs;
hdmi->bridge.of_node = pdev->dev.of_node;