[alsa-devel] Applied "ASoC: Intel: hdac_hdmi: add Icelake support" to the asoc tree

[Mark Brown]

The patch

   ASoC: Intel: hdac_hdmi: add Icelake support

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 019033c854a20e10f691f6cc0e897df8817d9521 Mon Sep 17 00:00:00 2001
From: Bard liao <bard.liao at intel.com>
Date: Sun, 11 Nov 2018 05:18:46 +0800
Subject: [PATCH] ASoC: Intel: hdac_hdmi: add Icelake support

Add Icelake device id. Also, Icelake's pin2port mapping table is
complicated. So we use a mapping table to do the pin2port mapping.

Signed-off-by: Bard liao <bard.liao at intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/codecs/hdac_hdmi.c | 63 ++++++++++++++++++++++++++++++------
 1 file changed, 54 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index 4e9854889a95..fac397326515 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -121,8 +121,16 @@ struct hdac_hdmi_dai_port_map {
 	struct hdac_hdmi_cvt *cvt;
 };
 
+/*
+ * pin to port mapping table where the value indicate the pin number and
+ * the index indicate the port number with 1 base.
+ */
+static const int icl_pin2port_map[] = {0x4, 0x6, 0x8, 0xa, 0xb};
+
 struct hdac_hdmi_drv_data {
 	unsigned int vendor_nid;
+	const int *port_map; /* pin to port mapping table */
+	int port_num;
 };
 
 struct hdac_hdmi_priv {
@@ -1329,11 +1337,12 @@ static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
 	return 0;
 }
 
-#define INTEL_VENDOR_NID 0x08
-#define INTEL_GLK_VENDOR_NID 0x0b
+#define INTEL_VENDOR_NID_0x2 0x02
+#define INTEL_VENDOR_NID_0x8 0x08
+#define INTEL_VENDOR_NID_0xb 0x0b
 #define INTEL_GET_VENDOR_VERB 0xf81
 #define INTEL_SET_VENDOR_VERB 0x781
-#define INTEL_EN_DP12			0x02 /* enable DP 1.2 features */
+#define INTEL_EN_DP12		0x02 /* enable DP 1.2 features */
 #define INTEL_EN_ALL_PIN_CVTS	0x01 /* enable 2nd & 3rd pins and convertors */
 
 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
@@ -1538,7 +1547,26 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
 
 static int hdac_hdmi_pin2port(void *aptr, int pin)
 {
-	return pin - 4; /* map NID 0x05 -> port #1 */
+	struct hdac_device *hdev = aptr;
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
+	const int *map = hdmi->drv_data->port_map;
+	int i;
+
+	if (!hdmi->drv_data->port_num)
+		return pin - 4; /* map NID 0x05 -> port #1 */
+
+	/*
+	 * looking for the pin number in the mapping table and return
+	 * the index which indicate the port number
+	 */
+	for (i = 0; i < hdmi->drv_data->port_num; i++) {
+		if (pin == map[i])
+			return i + 1;
+	}
+
+	/* return -1 if pin number exceeds our expectation */
+	dev_err(&hdev->dev, "Can't find the port for pin %d\n", pin);
+	return -1;
 }
 
 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
@@ -1549,9 +1577,18 @@ static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
 	struct hdac_hdmi_port *hport = NULL;
 	struct snd_soc_component *component = hdmi->component;
 	int i;
-
-	/* Don't know how this mapping is derived */
-	hda_nid_t pin_nid = port + 0x04;
+	hda_nid_t pin_nid;
+
+	if (!hdmi->drv_data->port_num) {
+		/* for legacy platforms */
+		pin_nid = port + 0x04;
+	} else if (port < hdmi->drv_data->port_num) {
+		/* get pin number from the pin2port mapping table */
+		pin_nid = hdmi->drv_data->port_map[port - 1];
+	} else {
+		dev_err(&hdev->dev, "Can't find the pin for port %d\n", port);
+		return;
+	}
 
 	dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
 							pin_nid, pipe);
@@ -1973,12 +2010,18 @@ static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
 	return port->eld.info.spk_alloc;
 }
 
+static struct hdac_hdmi_drv_data intel_icl_drv_data  = {
+	.vendor_nid = INTEL_VENDOR_NID_0x2,
+	.port_map = icl_pin2port_map,
+	.port_num = ARRAY_SIZE(icl_pin2port_map),
+};
+
 static struct hdac_hdmi_drv_data intel_glk_drv_data  = {
-	.vendor_nid = INTEL_GLK_VENDOR_NID,
+	.vendor_nid = INTEL_VENDOR_NID_0xb,
 };
 
 static struct hdac_hdmi_drv_data intel_drv_data  = {
-	.vendor_nid = INTEL_VENDOR_NID,
+	.vendor_nid = INTEL_VENDOR_NID_0x8,
 };
 
 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
@@ -2259,6 +2302,8 @@ static const struct hda_device_id hdmi_list[] = {
 						   &intel_glk_drv_data),
 	HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
 						   &intel_glk_drv_data),
+	HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
+						   &intel_icl_drv_data),
 	{}
 };
 
-- 
2.19.1