testing/linux-amlogic: upgrade to 4.19.8

1 files changed, 0 insertions, 416 deletions

diff --git a/testing/linux-amlogic/0008-ASoC-meson-add-aiu-i2s-dma-support.patch b/testing/linux-amlogic/0008-ASoC-meson-add-aiu-i2s-dma-support.patch
deleted file mode 100644
index 1de0e444ad..0000000000
--- a/testing/linux-amlogic/0008-ASoC-meson-add-aiu-i2s-dma-support.patch
+++ /dev/null
@@ -1,416 +0,0 @@
-From bb5102086db1579c1289440fa8aa184a70cb7c64 Mon Sep 17 00:00:00 2001
-From: Jerome Brunet <jbrunet@baylibre.com>
-Date: Thu, 30 Mar 2017 12:14:40 +0200
-Subject: [PATCH] ASoC: meson: add aiu i2s dma support
-
-Add support for the i2s output dma which is part of the AIU block
-
-Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
----
- sound/soc/meson/Kconfig       |   7 +
- sound/soc/meson/Makefile      |   2 +
- sound/soc/meson/aiu-i2s-dma.c | 370 ++++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 379 insertions(+)
- create mode 100644 sound/soc/meson/aiu-i2s-dma.c
-
-diff --git a/sound/soc/meson/Kconfig b/sound/soc/meson/Kconfig
-index ca0e3e9..88fbfc2 100644
---- a/sound/soc/meson/Kconfig
-+++ b/sound/soc/meson/Kconfig
-@@ -7,3 +7,10 @@ menuconfig SND_SOC_MESON
- 	  Say Y or M if you want to add support for codecs attached to
- 	  the Amlogic Meson SoCs Audio interfaces. You will also need to
- 	  select the audio interfaces to support below.
-+
-+config SND_SOC_MESON_I2S
-+	tristate "Meson i2s interface"
-+	depends on SND_SOC_MESON
-+	help
-+	  Say Y or M if you want to add support for i2s dma driver for Amlogic
-+	  Meson SoCs.
-diff --git a/sound/soc/meson/Makefile b/sound/soc/meson/Makefile
-index 22028ab..273f275 100644
---- a/sound/soc/meson/Makefile
-+++ b/sound/soc/meson/Makefile
-@@ -1,3 +1,5 @@
- snd-soc-meson-audio-core-objs	 := audio-core.o
-+snd-soc-meson-aiu-i2s-dma-objs	 := aiu-i2s-dma.o
- 
- obj-$(CONFIG_SND_SOC_MESON)		+= snd-soc-meson-audio-core.o
-+obj-$(CONFIG_SND_SOC_MESON_I2S)		+= snd-soc-meson-aiu-i2s-dma.o
-diff --git a/sound/soc/meson/aiu-i2s-dma.c b/sound/soc/meson/aiu-i2s-dma.c
-new file mode 100644
-index 0000000..2684bd0
---- /dev/null
-+++ b/sound/soc/meson/aiu-i2s-dma.c
-@@ -0,0 +1,370 @@
-+/*
-+ * Copyright (C) 2017 BayLibre, SAS
-+ * Author: Jerome Brunet <jbrunet@baylibre.com>
-+ * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
-+ *
-+ * 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, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#include <linux/clk.h>
-+#include <linux/mfd/syscon.h>
-+#include <linux/module.h>
-+#include <linux/of.h>
-+#include <linux/platform_device.h>
-+#include <linux/regmap.h>
-+
-+#include <sound/pcm_params.h>
-+#include <sound/soc.h>
-+
-+#include "aiu-regs.h"
-+#include "audio-core.h"
-+
-+#define DRV_NAME "meson-aiu-i2s-dma"
-+
-+struct aiu_i2s_dma {
-+	struct meson_audio_core_data *core;
-+	struct clk *fast;
-+	int irq;
-+};
-+
-+#define AIU_MEM_I2S_BUF_CNTL_INIT		BIT(0)
-+#define AIU_MEM_I2S_CONTROL_INIT		BIT(0)
-+#define AIU_MEM_I2S_CONTROL_FILL_EN		BIT(1)
-+#define AIU_MEM_I2S_CONTROL_EMPTY_EN		BIT(2)
-+#define AIU_MEM_I2S_CONTROL_MODE_16BIT		BIT(6)
-+#define AIU_MEM_I2S_CONTROL_BUSY		BIT(7)
-+#define AIU_MEM_I2S_CONTROL_DATA_READY		BIT(8)
-+#define AIU_MEM_I2S_CONTROL_LEVEL_CNTL		BIT(9)
-+#define AIU_MEM_I2S_MASKS_IRQ_BLOCK_MASK	GENMASK(31, 16)
-+#define AIU_MEM_I2S_MASKS_IRQ_BLOCK(n)		((n) << 16)
-+#define AIU_MEM_I2S_MASKS_CH_MEM_MASK		GENMASK(15, 8)
-+#define AIU_MEM_I2S_MASKS_CH_MEM(ch)		((ch) << 8)
-+#define AIU_MEM_I2S_MASKS_CH_RD_MASK		GENMASK(7, 0)
-+#define AIU_MEM_I2S_MASKS_CH_RD(ch)		((ch) << 0)
-+#define AIU_RST_SOFT_I2S_FAST_DOMAIN		BIT(0)
-+#define AIU_RST_SOFT_I2S_SLOW_DOMAIN		BIT(1)
-+
-+/*
-+ * The DMA works by i2s "blocks" (or DMA burst). The burst size and the memory
-+ * layout expected depends on the mode of operation.
-+ *
-+ * - Normal mode: The channels are expected to be packed in 32 bytes groups
-+ *  interleaved the buffer. AIU_MEM_I2S_MASKS_CH_MEM is a bitfield representing
-+ *  the channels present in memory. AIU_MEM_I2S_MASKS_CH_MEM represents the
-+ *  channels read by the DMA. This is very flexible but the unsual memory layout
-+ *  makes it less easy to deal with. The burst size is 32 bytes times the number
-+ *  of channels read.
-+ *
-+ * - Split mode:
-+ * Classical channel interleaved frame organisation. In this mode,
-+ * AIU_MEM_I2S_MASKS_CH_MEM and AIU_MEM_I2S_MASKS_CH_MEM must be set to 0xff and
-+ * the burst size is fixed to 256 bytes. The input can be either 2 or 8
-+ * channels.
-+ *
-+ * The following driver implements the split mode.
-+ */
-+
-+#define AIU_I2S_DMA_BURST 256
-+
-+static struct snd_pcm_hardware aiu_i2s_dma_hw = {
-+	.info = (SNDRV_PCM_INFO_INTERLEAVED |
-+		 SNDRV_PCM_INFO_MMAP |
-+		 SNDRV_PCM_INFO_MMAP_VALID |
-+		 SNDRV_PCM_INFO_PAUSE),
-+
-+	.formats = (SNDRV_PCM_FMTBIT_S16_LE |
-+		    SNDRV_PCM_FMTBIT_S24_LE |
-+		    SNDRV_PCM_FMTBIT_S32_LE),
-+
-+	/*
-+	 * TODO: The DMA can change the endianness, the msb position
-+	 * and deal with unsigned - support this later on
-+	 */
-+
-+	.rate_min = 8000,
-+	.rate_max = 192000,
-+	.channels_min = 2,
-+	.channels_max = 8,
-+	.period_bytes_min = AIU_I2S_DMA_BURST,
-+	.period_bytes_max = AIU_I2S_DMA_BURST * 65535,
-+	.periods_min = 2,
-+	.periods_max = UINT_MAX,
-+	.buffer_bytes_max = 1 * 1024 * 1024,
-+	.fifo_size = 0,
-+};
-+
-+static struct aiu_i2s_dma *aiu_i2s_dma_priv(struct snd_pcm_substream *s)
-+{
-+	struct snd_soc_pcm_runtime *rtd = s->private_data;
-+	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
-+
-+	return snd_soc_component_get_drvdata(component);
-+}
-+
-+static snd_pcm_uframes_t
-+aiu_i2s_dma_pointer(struct snd_pcm_substream *substream)
-+{
-+	struct snd_pcm_runtime *runtime = substream->runtime;
-+	struct aiu_i2s_dma *priv = aiu_i2s_dma_priv(substream);
-+	unsigned int addr;
-+	int ret;
-+
-+	ret = regmap_read(priv->core->aiu, AIU_MEM_I2S_RD_PTR,
-+			  &addr);
-+	if (ret)
-+		return 0;
-+
-+	return bytes_to_frames(runtime, addr - (unsigned int)runtime->dma_addr);
-+}
-+
-+static void __dma_enable(struct aiu_i2s_dma *priv, bool enable)
-+{
-+	unsigned int en_mask = (AIU_MEM_I2S_CONTROL_FILL_EN |
-+				AIU_MEM_I2S_CONTROL_EMPTY_EN);
-+
-+	regmap_update_bits(priv->core->aiu, AIU_MEM_I2S_CONTROL, en_mask,
-+			   enable ? en_mask : 0);
-+
-+}
-+
-+static int aiu_i2s_dma_trigger(struct snd_pcm_substream *substream, int cmd)
-+{
-+	struct aiu_i2s_dma *priv = aiu_i2s_dma_priv(substream);
-+
-+	switch (cmd) {
-+	case SNDRV_PCM_TRIGGER_START:
-+	case SNDRV_PCM_TRIGGER_RESUME:
-+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-+		__dma_enable(priv, true);
-+		break;
-+	case SNDRV_PCM_TRIGGER_SUSPEND:
-+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-+	case SNDRV_PCM_TRIGGER_STOP:
-+		__dma_enable(priv, false);
-+		break;
-+	default:
-+		return -EINVAL;
-+	}
-+
-+	return 0;
-+}
-+
-+static void __dma_init_mem(struct aiu_i2s_dma *priv)
-+{
-+	regmap_update_bits(priv->core->aiu, AIU_MEM_I2S_CONTROL,
-+			   AIU_MEM_I2S_CONTROL_INIT,
-+			   AIU_MEM_I2S_CONTROL_INIT);
-+	regmap_update_bits(priv->core->aiu, AIU_MEM_I2S_BUF_CNTL,
-+			   AIU_MEM_I2S_BUF_CNTL_INIT,
-+			   AIU_MEM_I2S_BUF_CNTL_INIT);
-+
-+	regmap_update_bits(priv->core->aiu, AIU_MEM_I2S_CONTROL,
-+			   AIU_MEM_I2S_CONTROL_INIT,
-+			   0);
-+	regmap_update_bits(priv->core->aiu, AIU_MEM_I2S_BUF_CNTL,
-+			   AIU_MEM_I2S_BUF_CNTL_INIT,
-+			   0);
-+}
-+
-+static int aiu_i2s_dma_prepare(struct snd_pcm_substream *substream)
-+{
-+	struct aiu_i2s_dma *priv = aiu_i2s_dma_priv(substream);
-+
-+	__dma_init_mem(priv);
-+
-+	return 0;
-+}
-+
-+static int aiu_i2s_dma_hw_params(struct snd_pcm_substream *substream,
-+				 struct snd_pcm_hw_params *params)
-+{
-+	struct snd_pcm_runtime *runtime = substream->runtime;
-+	struct aiu_i2s_dma *priv = aiu_i2s_dma_priv(substream);
-+	int ret;
-+	u32 burst_num, mem_ctl;
-+	dma_addr_t end_ptr;
-+
-+	ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
-+	if (ret < 0)
-+		return ret;
-+
-+	/* Setup memory layout */
-+	if (params_physical_width(params) == 16)
-+		mem_ctl = AIU_MEM_I2S_CONTROL_MODE_16BIT;
-+	else
-+		mem_ctl = 0;
-+
-+	regmap_update_bits(priv->core->aiu, AIU_MEM_I2S_CONTROL,
-+			   AIU_MEM_I2S_CONTROL_MODE_16BIT,
-+			   mem_ctl);
-+
-+	/* Initialize memory pointers */
-+	regmap_write(priv->core->aiu, AIU_MEM_I2S_START_PTR, runtime->dma_addr);
-+	regmap_write(priv->core->aiu, AIU_MEM_I2S_RD_PTR, runtime->dma_addr);
-+
-+	/* The end pointer is the address of the last valid block */
-+	end_ptr = runtime->dma_addr + runtime->dma_bytes - AIU_I2S_DMA_BURST;
-+	regmap_write(priv->core->aiu, AIU_MEM_I2S_END_PTR, end_ptr);
-+
-+	/* Memory masks */
-+	burst_num = params_period_bytes(params) / AIU_I2S_DMA_BURST;
-+	regmap_write(priv->core->aiu, AIU_MEM_I2S_MASKS,
-+		     AIU_MEM_I2S_MASKS_CH_RD(0xff) |
-+		     AIU_MEM_I2S_MASKS_CH_MEM(0xff) |
-+		     AIU_MEM_I2S_MASKS_IRQ_BLOCK(burst_num));
-+
-+	return 0;
-+}
-+
-+static int aiu_i2s_dma_hw_free(struct snd_pcm_substream *substream)
-+{
-+	return snd_pcm_lib_free_pages(substream);
-+}
-+
-+
-+static irqreturn_t aiu_i2s_dma_irq_block(int irq, void *dev_id)
-+{
-+	struct snd_pcm_substream *playback = dev_id;
-+
-+	snd_pcm_period_elapsed(playback);
-+
-+	return IRQ_HANDLED;
-+}
-+
-+static int aiu_i2s_dma_open(struct snd_pcm_substream *substream)
-+{
-+	struct aiu_i2s_dma *priv = aiu_i2s_dma_priv(substream);
-+	int ret;
-+
-+	snd_soc_set_runtime_hwparams(substream, &aiu_i2s_dma_hw);
-+
-+	/*
-+	 * Make sure the buffer and period size are multiple of the DMA burst
-+	 * size
-+	 */
-+	ret = snd_pcm_hw_constraint_step(substream->runtime, 0,
-+					 SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
-+					 AIU_I2S_DMA_BURST);
-+	if (ret)
-+		return ret;
-+
-+	ret = snd_pcm_hw_constraint_step(substream->runtime, 0,
-+					 SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
-+					 AIU_I2S_DMA_BURST);
-+	if (ret)
-+		return ret;
-+
-+	/* Request the I2S DDR irq */
-+	ret = request_irq(priv->irq, aiu_i2s_dma_irq_block, 0,
-+			  DRV_NAME, substream);
-+	if (ret)
-+		return ret;
-+
-+	/* Power up the i2s fast domain - can't write the registers w/o it */
-+	ret = clk_prepare_enable(priv->fast);
-+	if (ret)
-+		return ret;
-+
-+	/* Make sure the dma is initially disabled */
-+	__dma_enable(priv, false);
-+
-+	return 0;
-+}
-+
-+static int aiu_i2s_dma_close(struct snd_pcm_substream *substream)
-+{
-+	struct aiu_i2s_dma *priv = aiu_i2s_dma_priv(substream);
-+
-+	clk_disable_unprepare(priv->fast);
-+	free_irq(priv->irq, substream);
-+
-+	return 0;
-+}
-+
-+static const struct snd_pcm_ops aiu_i2s_dma_ops = {
-+	.open =		aiu_i2s_dma_open,
-+	.close =        aiu_i2s_dma_close,
-+	.ioctl =	snd_pcm_lib_ioctl,
-+	.hw_params =	aiu_i2s_dma_hw_params,
-+	.hw_free =      aiu_i2s_dma_hw_free,
-+	.prepare =      aiu_i2s_dma_prepare,
-+	.pointer =	aiu_i2s_dma_pointer,
-+	.trigger =	aiu_i2s_dma_trigger,
-+};
-+
-+static int aiu_i2s_dma_new(struct snd_soc_pcm_runtime *rtd)
-+{
-+	struct snd_card *card = rtd->card->snd_card;
-+	size_t size = aiu_i2s_dma_hw.buffer_bytes_max;
-+
-+	return snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
-+						     SNDRV_DMA_TYPE_DEV,
-+						     card->dev, size, size);
-+}
-+
-+static const struct snd_soc_component_driver aiu_i2s_platform = {
-+	.ops = &aiu_i2s_dma_ops,
-+	.pcm_new = aiu_i2s_dma_new,
-+	.name = DRV_NAME,
-+};
-+
-+static int aiu_i2s_dma_probe(struct platform_device *pdev)
-+{
-+	struct device *dev = &pdev->dev;
-+	struct aiu_i2s_dma *priv;
-+
-+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
-+	if (!priv)
-+		return -ENOMEM;
-+
-+	platform_set_drvdata(pdev, priv);
-+	priv->core = dev_get_drvdata(dev->parent);
-+
-+	priv->fast = devm_clk_get(dev, "fast");
-+	if (IS_ERR(priv->fast)) {
-+		if (PTR_ERR(priv->fast) != -EPROBE_DEFER)
-+			dev_err(dev, "Can't get i2s fast domain clock\n");
-+		return PTR_ERR(priv->fast);
-+	}
-+
-+	priv->irq = platform_get_irq(pdev, 0);
-+	if (priv->irq <= 0) {
-+		dev_err(dev, "Can't get i2s ddr irq\n");
-+		return priv->irq;
-+	}
-+
-+	return devm_snd_soc_register_component(dev, &aiu_i2s_platform,
-+					       NULL, 0);
-+}
-+
-+static const struct of_device_id aiu_i2s_dma_of_match[] = {
-+	{ .compatible = "amlogic,meson-aiu-i2s-dma", },
-+	{ .compatible = "amlogic,meson-gxbb-aiu-i2s-dma", },
-+	{ .compatible = "amlogic,meson-gxl-aiu-i2s-dma", },
-+	{}
-+};
-+MODULE_DEVICE_TABLE(of, aiu_i2s_dma_of_match);
-+
-+static struct platform_driver aiu_i2s_dma_pdrv = {
-+	.probe = aiu_i2s_dma_probe,
-+	.driver = {
-+		.name = DRV_NAME,
-+		.of_match_table = aiu_i2s_dma_of_match,
-+	},
-+};
-+module_platform_driver(aiu_i2s_dma_pdrv);
-+
-+MODULE_DESCRIPTION("Meson AIU i2s DMA ASoC Driver");
-+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
-+MODULE_LICENSE("GPL v2");