MLK-11530-01 ASoC: fsl_hdmi: port hdmi audio driver

cherry-pick below patch from v3.14.y:
ENGR00330403-2: ASoC: fsl_hdmi: port hdmi audio driver from imx_3.10.y

Port HDMI audio driver (CPU driver, machine driver, platform driver) from
imx_3.10.y.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>

During 4.14 rebase converted from snd_pcm_ops.copy to copy_user because
copy was removed by upstream

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
[ Aisheng: fix conflicts for a clean base and merge MLK-12244
file onwership change ]
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>

1 files changed, 106 insertions, 0 deletions

diff --git a/sound/soc/fsl/imx-hdmi.h b/sound/soc/fsl/imx-hdmi.h
new file mode 100644
index 000000000000..d06ce9c34d32
--- /dev/null
+++ b/sound/soc/fsl/imx-hdmi.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2011-2014 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef __IMX_HDMI_H
+#define __IMX_HDMI_H
+
+struct imx_hdmi_sdma_params {
+	dma_addr_t phyaddr;
+	u32 buffer_num;
+	int dma;
+};
+
+struct imx_hdmi {
+	struct snd_soc_dai_driver cpu_dai_drv;
+	struct platform_device *codec_dev;
+	struct platform_device *dma_dev;
+	struct platform_device *pdev;
+	struct clk *isfr_clk;
+	struct clk *iahb_clk;
+	struct clk *mipi_core_clk;
+};
+
+#define HDMI_MAX_RATES 7
+#define HDMI_MAX_SAMPLE_SIZE 3
+#define HDMI_MAX_CHANNEL_CONSTRAINTS 4
+
+#define MXC_HDMI_RATES_PLAYBACK \
+	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
+	 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
+	 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
+
+#define MXC_HDMI_FORMATS_PLAYBACK \
+	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
+
+union hdmi_audio_header_t {
+	uint64_t  U;
+	struct {
+		unsigned consumer:1;
+		unsigned linear_pcm:1;
+		unsigned copyright:1;
+		unsigned pre_emphasis:3;
+		unsigned mode:2;
+
+		unsigned category_code:8;
+
+		unsigned source:4;
+		unsigned channel:4;
+
+		unsigned sample_freq:4;
+		unsigned clock_acc:2;
+		unsigned reserved0:2;
+
+		unsigned word_length:4;
+		unsigned org_sample_freq:4;
+
+		unsigned cgms_a:2;
+		unsigned reserved1:6;
+
+		unsigned reserved2:8;
+
+		unsigned reserved3:8;
+	} B;
+	unsigned char status[8];
+};
+
+union hdmi_audio_dma_data_t {
+	uint32_t  U;
+	struct {
+		unsigned data:24;
+		unsigned v:1;
+		unsigned u:1;
+		unsigned c:1;
+		unsigned p:1;
+		unsigned b:1;
+		unsigned reserved:3;
+	} B;
+};
+
+extern union hdmi_audio_header_t iec_header;
+
+#define hdmi_audio_writeb(reg, bit, val) \
+	do { \
+		hdmi_mask_writeb(val, HDMI_ ## reg, \
+			HDMI_ ## reg ## _ ## bit ## _OFFSET, \
+			HDMI_ ## reg ## _ ## bit ## _MASK); \
+		pr_debug("Set reg: HDMI_" #reg " (0x%x) "\
+			"bit: HDMI_" #reg "_" #bit " (%d) to val: %x\n", \
+			HDMI_ ## reg, HDMI_ ## reg ## _ ## bit ## _OFFSET, val); \
+	} while (0)
+
+#endif /* __IMX_HDMI_H */