[RFC PATCH 00/10] Add support for DMA and audio codec of F1C100s

[RFC PATCH 00/10] Add support for DMA and audio codec of F1C100s

[Mesih Kilinc]

This is RFC patchset for Allwinner suniv F1C100s to support DMA and
audio codec.

Allwinner F1C100s has a audio codec that has necessary digital and
analog parts. It has r-l headphone output and microphone, line, r-l
FM inputs. ADC can capture any inputs and also output channels via mux.
Any input channels or DAC samples can feed output channels. 

Add support for this audio codec.

F1C100s utilizes DMA channels to send and receive ADC-DAC samples. So
DMA support needed. Patch 1~5 adds support for DMA. Suniv F1C100s has 
very similar DMA to sun4i. But there is some dissimilarities also. 
Suniv features a DMA reset bit in clock  control unit. It has smaller 
number of DMA channels. Several registers has different addresses. 
It's max burst size is 4 instead of 8. Also DMA endpoint numbers are 
different.

Patch 6 adds DMA max burst option to sun4i-codec.

Patch 7~8 Add support for suniv F1C100s audio codec.

Patch 9 adds audio codec to suniv-f1c100s.dtsi

Patch 10 adds audio codec support to Lichee Pi Nano board.
 
Thanks!

Mesih Kilinc (10):
  dma-engine: sun4i: Add a quirk to support different chips
  dma-engine: sun4i: Add has_reset option to quirk
  dt-bindings: dmaengine: Add Allwinner suniv F1C100s DMA
  dma-engine: sun4i: Add support for Allwinner suniv F1C100s
  ARM: dts: suniv: f1c100s: Add support for DMA
  ASoC: sun4i-codec: Add DMA Max Burst field
  dt-bindigs: sound: Add Allwinner suniv F1C100s Audio Codec
  ASoC: sun4i-codec: Add support for Allwinner suniv F1C100s
  ARM: dts: suniv: f1c100s: Add support for Audio Codec
  ARM: dts: suniv: f1c100s: Activate Audio Codec for Lichee Pi Nano

 .../devicetree/bindings/dma/sun4i-dma.txt          |   4 +-
 .../devicetree/bindings/sound/sun4i-codec.txt      |   5 +
 arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts  |   8 +
 arch/arm/boot/dts/suniv-f1c100s.dtsi               |  25 ++
 drivers/dma/Kconfig                                |   4 +-
 drivers/dma/sun4i-dma.c                            | 221 ++++++++++--
 sound/soc/sunxi/sun4i-codec.c                      | 371 ++++++++++++++++++++-
 7 files changed, 601 insertions(+), 37 deletions(-)

-- 
2.7.4

[RFC PATCH 01/10] dma-engine: sun4i: Add a quirk to support different chips

[Mesih Kilinc]

Allwinner suniv F1C100s has similar DMA engine to sun4i. Several
registers has different addresses. Total dma channels, endpoint counts
and max burst counts are also different.

In order to support F1C100s add a quirk structure to hold IC specific
data.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 drivers/dma/sun4i-dma.c | 138 +++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 106 insertions(+), 32 deletions(-)

diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c
index f4ed3f1..e86b424 100644
--- a/drivers/dma/sun4i-dma.c
+++ b/drivers/dma/sun4i-dma.c
@@ -16,6 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/of_dma.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
@@ -34,6 +35,8 @@
 #define SUN4I_DMA_CFG_SRC_ADDR_MODE(mode)	((mode) << 5)
 #define SUN4I_DMA_CFG_SRC_DRQ_TYPE(type)	(type)
 
+#define SUN4I_MAX_BURST	8
+
 /** Normal DMA register values **/
 
 /* Normal DMA source/destination data request type values */
@@ -126,6 +129,32 @@
 	 SUN4I_DDMA_PARA_DST_WAIT_CYCLES(2) |				\
 	 SUN4I_DDMA_PARA_SRC_WAIT_CYCLES(2))
 
+/*
+ * Hardware channels / ports representation
+ *
+ * The hardware is used in several SoCs, with differing numbers
+ * of channels and endpoints. This structure ties those numbers
+ * to a certain compatible string.
+ */
+struct sun4i_dma_config {
+	u32 ndma_nr_max_channels;
+	u32 ndma_nr_max_vchans;
+
+	u32 ddma_nr_max_channels;
+	u32 ddma_nr_max_vchans;
+
+	u32 dma_nr_max_channels;
+
+        void (*set_dst_data_width)(u32 *p_cfg, s8 data_width);
+        void (*set_src_data_width)(u32 *p_cfg, s8 data_width);
+	int (*convert_burst)(u32 maxburst);
+
+	u8 ndma_drq_sdram;
+	u8 ddma_drq_sdram;
+
+	u8 max_burst;
+};
+
 struct sun4i_dma_pchan {
 	/* Register base of channel */
 	void __iomem			*base;
@@ -163,7 +192,7 @@ struct sun4i_dma_contract {
 };
 
 struct sun4i_dma_dev {
-	DECLARE_BITMAP(pchans_used, SUN4I_DMA_NR_MAX_CHANNELS);
+	unsigned long *pchans_used;
 	struct dma_device		slave;
 	struct sun4i_dma_pchan		*pchans;
 	struct sun4i_dma_vchan		*vchans;
@@ -171,6 +200,7 @@ struct sun4i_dma_dev {
 	struct clk			*clk;
 	int				irq;
 	spinlock_t			lock;
+	const struct sun4i_dma_config *cfg;
 };
 
 static struct sun4i_dma_dev *to_sun4i_dma_dev(struct dma_device *dev)
@@ -193,7 +223,17 @@ static struct device *chan2dev(struct dma_chan *chan)
 	return &chan->dev->device;
 }
 
-static int convert_burst(u32 maxburst)
+static void set_dst_data_width_a10(u32 *p_cfg, s8 data_width)
+{
+	*p_cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(data_width);
+}
+
+static void set_src_data_width_a10(u32 *p_cfg, s8 data_width)
+{
+	*p_cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(data_width);
+}
+
+static int convert_burst_a10(u32 maxburst)
 {
 	if (maxburst > 8)
 		return -EINVAL;
@@ -226,15 +266,15 @@ static struct sun4i_dma_pchan *find_and_use_pchan(struct sun4i_dma_dev *priv,
 	int i, max;
 
 	/*
-	 * pchans 0-SUN4I_NDMA_NR_MAX_CHANNELS are normal, and
-	 * SUN4I_NDMA_NR_MAX_CHANNELS+ are dedicated ones
+	 * pchans 0-priv->cfg->ndma_nr_max_channels are normal, and
+	 * priv->cfg->ndma_nr_max_channels+ are dedicated ones
 	 */
 	if (vchan->is_dedicated) {
-		i = SUN4I_NDMA_NR_MAX_CHANNELS;
-		max = SUN4I_DMA_NR_MAX_CHANNELS;
+		i = priv->cfg->ndma_nr_max_channels;
+		max = priv->cfg->dma_nr_max_channels;
 	} else {
 		i = 0;
-		max = SUN4I_NDMA_NR_MAX_CHANNELS;
+		max = priv->cfg->ndma_nr_max_channels;
 	}
 
 	spin_lock_irqsave(&priv->lock, flags);
@@ -437,6 +477,7 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
 		      size_t len, struct dma_slave_config *sconfig,
 		      enum dma_transfer_direction direction)
 {
+	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
 	struct sun4i_dma_promise *promise;
 	int ret;
 
@@ -460,13 +501,13 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
 		sconfig->src_addr_width, sconfig->dst_addr_width);
 
 	/* Source burst */
-	ret = convert_burst(sconfig->src_maxburst);
+	ret = priv->cfg->convert_burst(sconfig->src_maxburst);
 	if (ret < 0)
 		goto fail;
 	promise->cfg |= SUN4I_DMA_CFG_SRC_BURST_LENGTH(ret);
 
 	/* Destination burst */
-	ret = convert_burst(sconfig->dst_maxburst);
+	ret = priv->cfg->convert_burst(sconfig->dst_maxburst);
 	if (ret < 0)
 		goto fail;
 	promise->cfg |= SUN4I_DMA_CFG_DST_BURST_LENGTH(ret);
@@ -475,13 +516,13 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
 	ret = convert_buswidth(sconfig->src_addr_width);
 	if (ret < 0)
 		goto fail;
-	promise->cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(ret);
+	priv->cfg->set_src_data_width(&promise->cfg, ret);
 
 	/* Destination bus width */
 	ret = convert_buswidth(sconfig->dst_addr_width);
 	if (ret < 0)
 		goto fail;
-	promise->cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(ret);
+	priv->cfg->set_dst_data_width(&promise->cfg, ret);
 
 	return promise;
 
@@ -503,6 +544,7 @@ static struct sun4i_dma_promise *
 generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
 		      size_t len, struct dma_slave_config *sconfig)
 {
+	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
 	struct sun4i_dma_promise *promise;
 	int ret;
 
@@ -517,13 +559,13 @@ generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
 		SUN4I_DDMA_CFG_BYTE_COUNT_MODE_REMAIN;
 
 	/* Source burst */
-	ret = convert_burst(sconfig->src_maxburst);
+	ret = priv->cfg->convert_burst(sconfig->src_maxburst);
 	if (ret < 0)
 		goto fail;
 	promise->cfg |= SUN4I_DMA_CFG_SRC_BURST_LENGTH(ret);
 
 	/* Destination burst */
-	ret = convert_burst(sconfig->dst_maxburst);
+	ret = priv->cfg->convert_burst(sconfig->dst_maxburst);
 	if (ret < 0)
 		goto fail;
 	promise->cfg |= SUN4I_DMA_CFG_DST_BURST_LENGTH(ret);
@@ -532,13 +574,13 @@ generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
 	ret = convert_buswidth(sconfig->src_addr_width);
 	if (ret < 0)
 		goto fail;
-	promise->cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(ret);
+	priv->cfg->set_src_data_width(&promise->cfg, ret);
 
 	/* Destination bus width */
 	ret = convert_buswidth(sconfig->dst_addr_width);
 	if (ret < 0)
 		goto fail;
-	promise->cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(ret);
+	priv->cfg->set_dst_data_width(&promise->cfg, ret);
 
 	return promise;
 
@@ -615,6 +657,7 @@ static struct dma_async_tx_descriptor *
 sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest,
 			  dma_addr_t src, size_t len, unsigned long flags)
 {
+	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
 	struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan);
 	struct dma_slave_config *sconfig = &vchan->cfg;
 	struct sun4i_dma_promise *promise;
@@ -631,8 +674,8 @@ sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest,
 	 */
 	sconfig->src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	sconfig->dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-	sconfig->src_maxburst = 8;
-	sconfig->dst_maxburst = 8;
+	sconfig->src_maxburst = priv->cfg->max_burst;
+	sconfig->dst_maxburst = priv->cfg->max_burst;
 
 	if (vchan->is_dedicated)
 		promise = generate_ddma_promise(chan, src, dest, len, sconfig);
@@ -647,11 +690,13 @@ sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest,
 
 	/* Configure memcpy mode */
 	if (vchan->is_dedicated) {
-		promise->cfg |= SUN4I_DMA_CFG_SRC_DRQ_TYPE(SUN4I_DDMA_DRQ_TYPE_SDRAM) |
-				SUN4I_DMA_CFG_DST_DRQ_TYPE(SUN4I_DDMA_DRQ_TYPE_SDRAM);
+		promise->cfg |=
+			SUN4I_DMA_CFG_SRC_DRQ_TYPE(priv->cfg->ddma_drq_sdram) |
+			SUN4I_DMA_CFG_DST_DRQ_TYPE(priv->cfg->ddma_drq_sdram);
 	} else {
-		promise->cfg |= SUN4I_DMA_CFG_SRC_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM) |
-				SUN4I_DMA_CFG_DST_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM);
+		promise->cfg |=
+			SUN4I_DMA_CFG_SRC_DRQ_TYPE(priv->cfg->ndma_drq_sdram) |
+			SUN4I_DMA_CFG_DST_DRQ_TYPE(priv->cfg->ndma_drq_sdram);
 	}
 
 	/* Fill the contract with our only promise */
@@ -666,6 +711,7 @@ sun4i_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf, size_t len,
 			  size_t period_len, enum dma_transfer_direction dir,
 			  unsigned long flags)
 {
+	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
 	struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan);
 	struct dma_slave_config *sconfig = &vchan->cfg;
 	struct sun4i_dma_promise *promise;
@@ -701,7 +747,7 @@ sun4i_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf, size_t len,
 	if (dir == DMA_MEM_TO_DEV) {
 		src = buf;
 		dest = sconfig->dst_addr;
-		endpoints = SUN4I_DMA_CFG_SRC_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM) |
+		endpoints = SUN4I_DMA_CFG_SRC_DRQ_TYPE(priv->cfg->ndma_drq_sdram) |
 			    SUN4I_DMA_CFG_DST_DRQ_TYPE(vchan->endpoint) |
 			    SUN4I_DMA_CFG_DST_ADDR_MODE(SUN4I_NDMA_ADDR_MODE_IO);
 	} else {
@@ -709,7 +755,7 @@ sun4i_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf, size_t len,
 		dest = buf;
 		endpoints = SUN4I_DMA_CFG_SRC_DRQ_TYPE(vchan->endpoint) |
 			    SUN4I_DMA_CFG_SRC_ADDR_MODE(SUN4I_NDMA_ADDR_MODE_IO) |
-			    SUN4I_DMA_CFG_DST_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM);
+			    SUN4I_DMA_CFG_DST_DRQ_TYPE(priv->cfg->ndma_drq_sdram);
 	}
 
 	/*
@@ -772,6 +818,7 @@ sun4i_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 			unsigned int sg_len, enum dma_transfer_direction dir,
 			unsigned long flags, void *context)
 {
+	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
 	struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan);
 	struct dma_slave_config *sconfig = &vchan->cfg;
 	struct sun4i_dma_promise *promise;
@@ -797,11 +844,11 @@ sun4i_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 	if (vchan->is_dedicated) {
 		io_mode = SUN4I_DDMA_ADDR_MODE_IO;
 		linear_mode = SUN4I_DDMA_ADDR_MODE_LINEAR;
-		ram_type = SUN4I_DDMA_DRQ_TYPE_SDRAM;
+		ram_type = priv->cfg->ddma_drq_sdram;
 	} else {
 		io_mode = SUN4I_NDMA_ADDR_MODE_IO;
 		linear_mode = SUN4I_NDMA_ADDR_MODE_LINEAR;
-		ram_type = SUN4I_NDMA_DRQ_TYPE_SDRAM;
+		ram_type = priv->cfg->ndma_drq_sdram;
 	}
 
 	if (dir == DMA_MEM_TO_DEV)
@@ -1130,6 +1177,10 @@ static int sun4i_dma_probe(struct platform_device *pdev)
 	if (!priv)
 		return -ENOMEM;
 
+	priv->cfg = of_device_get_match_data(&pdev->dev);
+	if (!priv->cfg)
+		return -ENODEV;
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	priv->base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(priv->base))
@@ -1178,23 +1229,26 @@ static int sun4i_dma_probe(struct platform_device *pdev)
 
 	priv->slave.dev = &pdev->dev;
 
-	priv->pchans = devm_kcalloc(&pdev->dev, SUN4I_DMA_NR_MAX_CHANNELS,
+	priv->pchans = devm_kcalloc(&pdev->dev, priv->cfg->dma_nr_max_channels,
 				    sizeof(struct sun4i_dma_pchan), GFP_KERNEL);
 	priv->vchans = devm_kcalloc(&pdev->dev, SUN4I_DMA_NR_MAX_VCHANS,
 				    sizeof(struct sun4i_dma_vchan), GFP_KERNEL);
-	if (!priv->vchans || !priv->pchans)
+	priv->pchans_used = devm_kcalloc(&pdev->dev,
+			BITS_TO_LONGS(priv->cfg->dma_nr_max_channels),
+			sizeof(unsigned long), GFP_KERNEL);
+	if (!priv->vchans || !priv->pchans || !priv->pchans_used)
 		return -ENOMEM;
 
 	/*
-	 * [0..SUN4I_NDMA_NR_MAX_CHANNELS) are normal pchans, and
-	 * [SUN4I_NDMA_NR_MAX_CHANNELS..SUN4I_DMA_NR_MAX_CHANNELS) are
+	 * [0..priv->cfg->ndma_nr_max_channels) are normal pchans, and
+	 * [priv->cfg->ndma_nr_max_channels..priv->cfg->dma_nr_max_channels) are
 	 * dedicated ones
 	 */
-	for (i = 0; i < SUN4I_NDMA_NR_MAX_CHANNELS; i++)
+	for (i = 0; i < priv->cfg->ndma_nr_max_channels; i++)
 		priv->pchans[i].base = priv->base +
 			SUN4I_NDMA_CHANNEL_REG_BASE(i);
 
-	for (j = 0; i < SUN4I_DMA_NR_MAX_CHANNELS; i++, j++) {
+	for (j = 0; i < priv->cfg->dma_nr_max_channels; i++, j++) {
 		priv->pchans[i].base = priv->base +
 			SUN4I_DDMA_CHANNEL_REG_BASE(j);
 		priv->pchans[i].is_dedicated = 1;
@@ -1267,8 +1321,28 @@ static int sun4i_dma_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static struct sun4i_dma_config sun4i_a10_dma_cfg = {
+	.ndma_nr_max_channels	= SUN4I_NDMA_NR_MAX_CHANNELS,
+	.ndma_nr_max_vchans	= SUN4I_NDMA_NR_MAX_VCHANS,
+
+	.ddma_nr_max_channels	= SUN4I_DDMA_NR_MAX_CHANNELS,
+	.ddma_nr_max_vchans	= SUN4I_DDMA_NR_MAX_VCHANS,
+
+	.dma_nr_max_channels	= SUN4I_NDMA_NR_MAX_CHANNELS + 
+		SUN4I_DDMA_NR_MAX_CHANNELS,
+
+	.set_dst_data_width	= set_dst_data_width_a10,
+	.set_src_data_width	= set_src_data_width_a10,
+	.convert_burst		= convert_burst_a10,
+
+	.ndma_drq_sdram		= SUN4I_NDMA_DRQ_TYPE_SDRAM,
+	.ddma_drq_sdram		= SUN4I_DDMA_DRQ_TYPE_SDRAM,
+
+	.max_burst		= SUN4I_MAX_BURST,
+};
+
 static const struct of_device_id sun4i_dma_match[] = {
-	{ .compatible = "allwinner,sun4i-a10-dma" },
+	{ .compatible = "allwinner,sun4i-a10-dma", .data = &sun4i_a10_dma_cfg },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, sun4i_dma_match);
-- 
2.7.4

Re: [RFC PATCH 01/10] dma-engine: sun4i: Add a quirk to support different chips

[Maxime Ripard]

[-- Attachment #1: Type: text/plain, Size: 12664 bytes --]

Hi,

(you don't really need the RFC tag. RFC tags are usually meant to ask
comments on the general approach, not the implementation).

On Mon, Dec 03, 2018 at 12:23:08AM +0300, Mesih Kilinc wrote:
> Allwinner suniv F1C100s has similar DMA engine to sun4i. Several
> registers has different addresses. Total dma channels, endpoint counts
> and max burst counts are also different.
> 
> In order to support F1C100s add a quirk structure to hold IC specific
> data.
> 
> Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
> ---
>  drivers/dma/sun4i-dma.c | 138 +++++++++++++++++++++++++++++++++++++-----------
>  1 file changed, 106 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c
> index f4ed3f1..e86b424 100644
> --- a/drivers/dma/sun4i-dma.c
> +++ b/drivers/dma/sun4i-dma.c
> @@ -16,6 +16,7 @@
>  #include <linux/interrupt.h>
>  #include <linux/module.h>
>  #include <linux/of_dma.h>
> +#include <linux/of_device.h>
>  #include <linux/platform_device.h>
>  #include <linux/slab.h>
>  #include <linux/spinlock.h>
> @@ -34,6 +35,8 @@
>  #define SUN4I_DMA_CFG_SRC_ADDR_MODE(mode)	((mode) << 5)
>  #define SUN4I_DMA_CFG_SRC_DRQ_TYPE(type)	(type)
>  
> +#define SUN4I_MAX_BURST	8
> +
>  /** Normal DMA register values **/
>  
>  /* Normal DMA source/destination data request type values */
> @@ -126,6 +129,32 @@
>  	 SUN4I_DDMA_PARA_DST_WAIT_CYCLES(2) |				\
>  	 SUN4I_DDMA_PARA_SRC_WAIT_CYCLES(2))
>  
> +/*
> + * Hardware channels / ports representation
> + *
> + * The hardware is used in several SoCs, with differing numbers
> + * of channels and endpoints. This structure ties those numbers
> + * to a certain compatible string.
> + */
> +struct sun4i_dma_config {
> +	u32 ndma_nr_max_channels;
> +	u32 ndma_nr_max_vchans;
> +
> +	u32 ddma_nr_max_channels;
> +	u32 ddma_nr_max_vchans;
> +
> +	u32 dma_nr_max_channels;
> +
> +        void (*set_dst_data_width)(u32 *p_cfg, s8 data_width);
> +        void (*set_src_data_width)(u32 *p_cfg, s8 data_width);

This should be indented with tabs, not spaces.

> +	int (*convert_burst)(u32 maxburst);
> +
> +	u8 ndma_drq_sdram;
> +	u8 ddma_drq_sdram;
> +
> +	u8 max_burst;

You'd be better off using a bitmask wit hthe supported bursts, like
we're doing in sun6i-dma.

> +};
> +
>  struct sun4i_dma_pchan {
>  	/* Register base of channel */
>  	void __iomem			*base;
> @@ -163,7 +192,7 @@ struct sun4i_dma_contract {
>  };
>  
>  struct sun4i_dma_dev {
> -	DECLARE_BITMAP(pchans_used, SUN4I_DMA_NR_MAX_CHANNELS);
> +	unsigned long *pchans_used;
>  	struct dma_device		slave;
>  	struct sun4i_dma_pchan		*pchans;
>  	struct sun4i_dma_vchan		*vchans;
> @@ -171,6 +200,7 @@ struct sun4i_dma_dev {
>  	struct clk			*clk;
>  	int				irq;
>  	spinlock_t			lock;
> +	const struct sun4i_dma_config *cfg;

This should be aligned to the rest of the members, using tabs.

>  };
>  
>  static struct sun4i_dma_dev *to_sun4i_dma_dev(struct dma_device *dev)
> @@ -193,7 +223,17 @@ static struct device *chan2dev(struct dma_chan *chan)
>  	return &chan->dev->device;
>  }
>  
> -static int convert_burst(u32 maxburst)
> +static void set_dst_data_width_a10(u32 *p_cfg, s8 data_width)
> +{
> +	*p_cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(data_width);
> +}
> +
> +static void set_src_data_width_a10(u32 *p_cfg, s8 data_width)
> +{
> +	*p_cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(data_width);
> +}
> +
> +static int convert_burst_a10(u32 maxburst)
>  {
>  	if (maxburst > 8)
>  		return -EINVAL;
> @@ -226,15 +266,15 @@ static struct sun4i_dma_pchan *find_and_use_pchan(struct sun4i_dma_dev *priv,
>  	int i, max;
>  
>  	/*
> -	 * pchans 0-SUN4I_NDMA_NR_MAX_CHANNELS are normal, and
> -	 * SUN4I_NDMA_NR_MAX_CHANNELS+ are dedicated ones
> +	 * pchans 0-priv->cfg->ndma_nr_max_channels are normal, and
> +	 * priv->cfg->ndma_nr_max_channels+ are dedicated ones

This should be next to the structure you just created.

>  	 */
>  	if (vchan->is_dedicated) {
> -		i = SUN4I_NDMA_NR_MAX_CHANNELS;
> -		max = SUN4I_DMA_NR_MAX_CHANNELS;
> +		i = priv->cfg->ndma_nr_max_channels;
> +		max = priv->cfg->dma_nr_max_channels;
>  	} else {
>  		i = 0;
> -		max = SUN4I_NDMA_NR_MAX_CHANNELS;
> +		max = priv->cfg->ndma_nr_max_channels;
>  	}
>  
>  	spin_lock_irqsave(&priv->lock, flags);
> @@ -437,6 +477,7 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
>  		      size_t len, struct dma_slave_config *sconfig,
>  		      enum dma_transfer_direction direction)
>  {
> +	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
>  	struct sun4i_dma_promise *promise;
>  	int ret;
>  
> @@ -460,13 +501,13 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
>  		sconfig->src_addr_width, sconfig->dst_addr_width);
>  
>  	/* Source burst */
> -	ret = convert_burst(sconfig->src_maxburst);
> +	ret = priv->cfg->convert_burst(sconfig->src_maxburst);
>  	if (ret < 0)
>  		goto fail;
>  	promise->cfg |= SUN4I_DMA_CFG_SRC_BURST_LENGTH(ret);
>  
>  	/* Destination burst */
> -	ret = convert_burst(sconfig->dst_maxburst);
> +	ret = priv->cfg->convert_burst(sconfig->dst_maxburst);
>  	if (ret < 0)
>  		goto fail;
>  	promise->cfg |= SUN4I_DMA_CFG_DST_BURST_LENGTH(ret);
> @@ -475,13 +516,13 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
>  	ret = convert_buswidth(sconfig->src_addr_width);
>  	if (ret < 0)
>  		goto fail;
> -	promise->cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(ret);
> +	priv->cfg->set_src_data_width(&promise->cfg, ret);
>  
>  	/* Destination bus width */
>  	ret = convert_buswidth(sconfig->dst_addr_width);
>  	if (ret < 0)
>  		goto fail;
> -	promise->cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(ret);
> +	priv->cfg->set_dst_data_width(&promise->cfg, ret);
>  
>  	return promise;
>  
> @@ -503,6 +544,7 @@ static struct sun4i_dma_promise *
>  generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
>  		      size_t len, struct dma_slave_config *sconfig)
>  {
> +	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
>  	struct sun4i_dma_promise *promise;
>  	int ret;
>  
> @@ -517,13 +559,13 @@ generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
>  		SUN4I_DDMA_CFG_BYTE_COUNT_MODE_REMAIN;
>  
>  	/* Source burst */
> -	ret = convert_burst(sconfig->src_maxburst);
> +	ret = priv->cfg->convert_burst(sconfig->src_maxburst);
>  	if (ret < 0)
>  		goto fail;
>  	promise->cfg |= SUN4I_DMA_CFG_SRC_BURST_LENGTH(ret);
>  
>  	/* Destination burst */
> -	ret = convert_burst(sconfig->dst_maxburst);
> +	ret = priv->cfg->convert_burst(sconfig->dst_maxburst);
>  	if (ret < 0)
>  		goto fail;
>  	promise->cfg |= SUN4I_DMA_CFG_DST_BURST_LENGTH(ret);
> @@ -532,13 +574,13 @@ generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest,
>  	ret = convert_buswidth(sconfig->src_addr_width);
>  	if (ret < 0)
>  		goto fail;
> -	promise->cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(ret);
> +	priv->cfg->set_src_data_width(&promise->cfg, ret);
>  
>  	/* Destination bus width */
>  	ret = convert_buswidth(sconfig->dst_addr_width);
>  	if (ret < 0)
>  		goto fail;
> -	promise->cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(ret);
> +	priv->cfg->set_dst_data_width(&promise->cfg, ret);
>  
>  	return promise;
>  
> @@ -615,6 +657,7 @@ static struct dma_async_tx_descriptor *
>  sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest,
>  			  dma_addr_t src, size_t len, unsigned long flags)
>  {
> +	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
>  	struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan);
>  	struct dma_slave_config *sconfig = &vchan->cfg;
>  	struct sun4i_dma_promise *promise;
> @@ -631,8 +674,8 @@ sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest,
>  	 */
>  	sconfig->src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
>  	sconfig->dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
> -	sconfig->src_maxburst = 8;
> -	sconfig->dst_maxburst = 8;
> +	sconfig->src_maxburst = priv->cfg->max_burst;
> +	sconfig->dst_maxburst = priv->cfg->max_burst;
>  
>  	if (vchan->is_dedicated)
>  		promise = generate_ddma_promise(chan, src, dest, len, sconfig);
> @@ -647,11 +690,13 @@ sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest,
>  
>  	/* Configure memcpy mode */
>  	if (vchan->is_dedicated) {
> -		promise->cfg |= SUN4I_DMA_CFG_SRC_DRQ_TYPE(SUN4I_DDMA_DRQ_TYPE_SDRAM) |
> -				SUN4I_DMA_CFG_DST_DRQ_TYPE(SUN4I_DDMA_DRQ_TYPE_SDRAM);
> +		promise->cfg |=
> +			SUN4I_DMA_CFG_SRC_DRQ_TYPE(priv->cfg->ddma_drq_sdram) |
> +			SUN4I_DMA_CFG_DST_DRQ_TYPE(priv->cfg->ddma_drq_sdram);
>  	} else {
> -		promise->cfg |= SUN4I_DMA_CFG_SRC_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM) |
> -				SUN4I_DMA_CFG_DST_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM);
> +		promise->cfg |=
> +			SUN4I_DMA_CFG_SRC_DRQ_TYPE(priv->cfg->ndma_drq_sdram) |
> +			SUN4I_DMA_CFG_DST_DRQ_TYPE(priv->cfg->ndma_drq_sdram);
>  	}
>  
>  	/* Fill the contract with our only promise */
> @@ -666,6 +711,7 @@ sun4i_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf, size_t len,
>  			  size_t period_len, enum dma_transfer_direction dir,
>  			  unsigned long flags)
>  {
> +	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
>  	struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan);
>  	struct dma_slave_config *sconfig = &vchan->cfg;
>  	struct sun4i_dma_promise *promise;
> @@ -701,7 +747,7 @@ sun4i_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf, size_t len,
>  	if (dir == DMA_MEM_TO_DEV) {
>  		src = buf;
>  		dest = sconfig->dst_addr;
> -		endpoints = SUN4I_DMA_CFG_SRC_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM) |
> +		endpoints = SUN4I_DMA_CFG_SRC_DRQ_TYPE(priv->cfg->ndma_drq_sdram) |
>  			    SUN4I_DMA_CFG_DST_DRQ_TYPE(vchan->endpoint) |
>  			    SUN4I_DMA_CFG_DST_ADDR_MODE(SUN4I_NDMA_ADDR_MODE_IO);
>  	} else {
> @@ -709,7 +755,7 @@ sun4i_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf, size_t len,
>  		dest = buf;
>  		endpoints = SUN4I_DMA_CFG_SRC_DRQ_TYPE(vchan->endpoint) |
>  			    SUN4I_DMA_CFG_SRC_ADDR_MODE(SUN4I_NDMA_ADDR_MODE_IO) |
> -			    SUN4I_DMA_CFG_DST_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM);
> +			    SUN4I_DMA_CFG_DST_DRQ_TYPE(priv->cfg->ndma_drq_sdram);
>  	}
>  
>  	/*
> @@ -772,6 +818,7 @@ sun4i_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
>  			unsigned int sg_len, enum dma_transfer_direction dir,
>  			unsigned long flags, void *context)
>  {
> +	struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device);
>  	struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan);
>  	struct dma_slave_config *sconfig = &vchan->cfg;
>  	struct sun4i_dma_promise *promise;
> @@ -797,11 +844,11 @@ sun4i_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
>  	if (vchan->is_dedicated) {
>  		io_mode = SUN4I_DDMA_ADDR_MODE_IO;
>  		linear_mode = SUN4I_DDMA_ADDR_MODE_LINEAR;
> -		ram_type = SUN4I_DDMA_DRQ_TYPE_SDRAM;
> +		ram_type = priv->cfg->ddma_drq_sdram;
>  	} else {
>  		io_mode = SUN4I_NDMA_ADDR_MODE_IO;
>  		linear_mode = SUN4I_NDMA_ADDR_MODE_LINEAR;
> -		ram_type = SUN4I_NDMA_DRQ_TYPE_SDRAM;
> +		ram_type = priv->cfg->ndma_drq_sdram;
>  	}
>  
>  	if (dir == DMA_MEM_TO_DEV)
> @@ -1130,6 +1177,10 @@ static int sun4i_dma_probe(struct platform_device *pdev)
>  	if (!priv)
>  		return -ENOMEM;
>  
> +	priv->cfg = of_device_get_match_data(&pdev->dev);
> +	if (!priv->cfg)
> +		return -ENODEV;
> +
>  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>  	priv->base = devm_ioremap_resource(&pdev->dev, res);
>  	if (IS_ERR(priv->base))
> @@ -1178,23 +1229,26 @@ static int sun4i_dma_probe(struct platform_device *pdev)
>  
>  	priv->slave.dev = &pdev->dev;
>  
> -	priv->pchans = devm_kcalloc(&pdev->dev, SUN4I_DMA_NR_MAX_CHANNELS,
> +	priv->pchans = devm_kcalloc(&pdev->dev, priv->cfg->dma_nr_max_channels,
>  				    sizeof(struct sun4i_dma_pchan), GFP_KERNEL);
>  	priv->vchans = devm_kcalloc(&pdev->dev, SUN4I_DMA_NR_MAX_VCHANS,
>  				    sizeof(struct sun4i_dma_vchan), GFP_KERNEL);
> -	if (!priv->vchans || !priv->pchans)
> +	priv->pchans_used = devm_kcalloc(&pdev->dev,
> +			BITS_TO_LONGS(priv->cfg->dma_nr_max_channels),
> +			sizeof(unsigned long), GFP_KERNEL);

I'm not sure we really need a dynamic allocation here. Just keep the
bitmap, and use the bigger size.

Thanks!
Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]

Re: [RFC PATCH 01/10] dma-engine: sun4i: Add a quirk to support different chips

[Vinod Koul]

On 03-12-18, 00:23, Mesih Kilinc wrote:
> Allwinner suniv F1C100s has similar DMA engine to sun4i. Several
> registers has different addresses. Total dma channels, endpoint counts
> and max burst counts are also different.

So if register layout is the only diff, have you thought about using
regmap_field so that you dont care about the layout

> +struct sun4i_dma_config {
> +	u32 ndma_nr_max_channels;
> +	u32 ndma_nr_max_vchans;
> +
> +	u32 ddma_nr_max_channels;
> +	u32 ddma_nr_max_vchans;
> +
> +	u32 dma_nr_max_channels;
> +
> +        void (*set_dst_data_width)(u32 *p_cfg, s8 data_width);
> +        void (*set_src_data_width)(u32 *p_cfg, s8 data_width);

aligned please, checkpatch should warn about this stuff

>  struct sun4i_dma_dev {
> -	DECLARE_BITMAP(pchans_used, SUN4I_DMA_NR_MAX_CHANNELS);
> +	unsigned long *pchans_used;

why not bitmap?

> +static struct sun4i_dma_config sun4i_a10_dma_cfg = {
> +	.ndma_nr_max_channels	= SUN4I_NDMA_NR_MAX_CHANNELS,
> +	.ndma_nr_max_vchans	= SUN4I_NDMA_NR_MAX_VCHANS,
> +
> +	.ddma_nr_max_channels	= SUN4I_DDMA_NR_MAX_CHANNELS,
> +	.ddma_nr_max_vchans	= SUN4I_DDMA_NR_MAX_VCHANS,
> +
> +	.dma_nr_max_channels	= SUN4I_NDMA_NR_MAX_CHANNELS + 
> +		SUN4I_DDMA_NR_MAX_CHANNELS,
> +
> +	.set_dst_data_width	= set_dst_data_width_a10,
> +	.set_src_data_width	= set_src_data_width_a10,
> +	.convert_burst		= convert_burst_a10,
> +
> +	.ndma_drq_sdram		= SUN4I_NDMA_DRQ_TYPE_SDRAM,
> +	.ddma_drq_sdram		= SUN4I_DDMA_DRQ_TYPE_SDRAM,
> +
> +	.max_burst		= SUN4I_MAX_BURST,
> +};
> +
>  static const struct of_device_id sun4i_dma_match[] = {
> -	{ .compatible = "allwinner,sun4i-a10-dma" },
> +	{ .compatible = "allwinner,sun4i-a10-dma", .data = &sun4i_a10_dma_cfg },

I would prefer this to be split into two patches, first one does the
refactoring of driver (better if we split things logically) and then
addition of new one..

-- 
~Vinod

[RFC PATCH 02/10] dma-engine: sun4i: Add has_reset option to quirk

[Mesih Kilinc]

Allwinner suniv F1C100s has a reset bit for DMA in CCU. Sun4i do not
has this bit but in order to support suniv we need to add it. So add
support for reset bit.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 drivers/dma/sun4i-dma.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c
index e86b424..d267ff9 100644
--- a/drivers/dma/sun4i-dma.c
+++ b/drivers/dma/sun4i-dma.c
@@ -18,6 +18,7 @@
 #include <linux/of_dma.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/reset.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 
@@ -153,6 +154,7 @@ struct sun4i_dma_config {
 	u8 ddma_drq_sdram;
 
 	u8 max_burst;
+	bool has_reset;
 };
 
 struct sun4i_dma_pchan {
@@ -201,6 +203,7 @@ struct sun4i_dma_dev {
 	int				irq;
 	spinlock_t			lock;
 	const struct sun4i_dma_config *cfg;
+	struct reset_control *rst;
 };
 
 static struct sun4i_dma_dev *to_sun4i_dma_dev(struct dma_device *dev)
@@ -1198,6 +1201,15 @@ static int sun4i_dma_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->clk);
 	}
 
+	if(priv->cfg->has_reset) {
+		priv->rst = devm_reset_control_get_exclusive(&pdev->dev,
+							       NULL);
+		if (IS_ERR(priv->rst)) {
+			dev_err(&pdev->dev, "Failed to get reset control\n");
+			return PTR_ERR(priv->rst);
+		}
+	}
+
 	platform_set_drvdata(pdev, priv);
 	spin_lock_init(&priv->lock);
 
@@ -1268,6 +1280,16 @@ static int sun4i_dma_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	/* Deassert the reset control */
+	if (priv->rst) {
+		ret = reset_control_deassert(priv->rst);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"Failed to deassert the reset control\n");
+			goto err_clk_disable;
+		}
+	}
+
 	/*
 	 * Make sure the IRQs are all disabled and accounted for. The bootloader
 	 * likes to leave these dirty
@@ -1339,6 +1361,7 @@ static struct sun4i_dma_config sun4i_a10_dma_cfg = {
 	.ddma_drq_sdram		= SUN4I_DDMA_DRQ_TYPE_SDRAM,
 
 	.max_burst		= SUN4I_MAX_BURST,
+	.has_reset		= false,
 };
 
 static const struct of_device_id sun4i_dma_match[] = {
-- 
2.7.4

[RFC PATCH 03/10] dt-bindings: dmaengine: Add Allwinner suniv F1C100s DMA

[Mesih Kilinc]

Add compatible string for Allwinner suniv F1C100s DMA.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 Documentation/devicetree/bindings/dma/sun4i-dma.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/sun4i-dma.txt b/Documentation/devicetree/bindings/dma/sun4i-dma.txt
index 8ad556a..ceeb41e 100644
--- a/Documentation/devicetree/bindings/dma/sun4i-dma.txt
+++ b/Documentation/devicetree/bindings/dma/sun4i-dma.txt
@@ -4,7 +4,9 @@ This driver follows the generic DMA bindings defined in dma.txt.
 
 Required properties:
 
-- compatible:	Must be "allwinner,sun4i-a10-dma"
+- compatible:	Should be one of the following:
+		"allwinner,sun4i-a10-dma"
+		"allwinner,suniv-f1c100s-dma"
 - reg:		Should contain the registers base address and length
 - interrupts:	Should contain a reference to the interrupt used by this device
 - clocks:	Should contain a reference to the parent AHB clock
-- 
2.7.4

Re: [RFC PATCH 03/10] dt-bindings: dmaengine: Add Allwinner suniv F1C100s DMA

[Rob Herring]

On Mon,  3 Dec 2018 00:23:10 +0300, Mesih Kilinc wrote:
> Add compatible string for Allwinner suniv F1C100s DMA.
> 
> Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
> ---
>  Documentation/devicetree/bindings/dma/sun4i-dma.txt | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

[RFC PATCH 04/10] dma-engine: sun4i: Add support for Allwinner suniv F1C100s

[Mesih Kilinc]

DMA of Allwinner suniv F1C100s is similar to sun4i. It has 4 NDMA, 4
DDMA channels and endpoints are different. Also F1C100s has reset bit
for DMA in CCU. Add support for it.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 drivers/dma/Kconfig     |  4 ++--
 drivers/dma/sun4i-dma.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index de511db..f8a65d2 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -163,8 +163,8 @@ config DMA_SA11X0
 
 config DMA_SUN4I
 	tristate "Allwinner A10 DMA SoCs support"
-	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
-	default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I)
+	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNIV
+	default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNIV)
 	select DMA_ENGINE
 	select DMA_VIRTUAL_CHANNELS
 	help
diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c
index d267ff9..c0452c9 100644
--- a/drivers/dma/sun4i-dma.c
+++ b/drivers/dma/sun4i-dma.c
@@ -36,7 +36,11 @@
 #define SUN4I_DMA_CFG_SRC_ADDR_MODE(mode)	((mode) << 5)
 #define SUN4I_DMA_CFG_SRC_DRQ_TYPE(type)	(type)
 
+#define SUNIV_DMA_CFG_DST_DATA_WIDTH(width)	((width) << 24)
+#define SUNIV_DMA_CFG_SRC_DATA_WIDTH(width)	((width) << 8)
+
 #define SUN4I_MAX_BURST	8
+#define SUNIV_MAX_BURST	4
 
 /** Normal DMA register values **/
 
@@ -44,6 +48,9 @@
 #define SUN4I_NDMA_DRQ_TYPE_SDRAM		0x16
 #define SUN4I_NDMA_DRQ_TYPE_LIMIT		(0x1F + 1)
 
+#define SUNIV_NDMA_DRQ_TYPE_SDRAM		0x11
+#define SUNIV_NDMA_DRQ_TYPE_LIMIT		(0x17 + 1)
+
 /** Normal DMA register layout **/
 
 /* Dedicated DMA source/destination address mode values */
@@ -57,6 +64,9 @@
 #define SUN4I_NDMA_CFG_BYTE_COUNT_MODE_REMAIN	BIT(15)
 #define SUN4I_NDMA_CFG_SRC_NON_SECURE		BIT(6)
 
+#define SUNIV_NDMA_CFG_CONT_MODE		BIT(29)
+#define SUNIV_NDMA_CFG_WAIT_STATE(n)		((n) << 26)
+
 /** Dedicated DMA register values **/
 
 /* Dedicated DMA source/destination address mode values */
@@ -69,6 +79,9 @@
 #define SUN4I_DDMA_DRQ_TYPE_SDRAM		0x1
 #define SUN4I_DDMA_DRQ_TYPE_LIMIT		(0x1F + 1)
 
+#define SUNIV_DDMA_DRQ_TYPE_SDRAM		0x1
+#define SUNIV_DDMA_DRQ_TYPE_LIMIT		(0x9 + 1)
+
 /** Dedicated DMA register layout **/
 
 /* Dedicated DMA configuration register layout */
@@ -122,6 +135,11 @@
 #define SUN4I_DMA_NR_MAX_VCHANS						\
 	(SUN4I_NDMA_NR_MAX_VCHANS + SUN4I_DDMA_NR_MAX_VCHANS)
 
+#define SUNIV_NDMA_NR_MAX_CHANNELS	4
+#define SUNIV_DDMA_NR_MAX_CHANNELS	4
+#define SUNIV_NDMA_NR_MAX_VCHANS	(24 * 2 - 1)
+#define SUNIV_DDMA_NR_MAX_VCHANS	10
+
 /* This set of SUN4I_DDMA timing parameters were found experimentally while
  * working with the SPI driver and seem to make it behave correctly */
 #define SUN4I_DDMA_MAGIC_SPI_PARAMETERS \
@@ -236,6 +254,16 @@ static void set_src_data_width_a10(u32 *p_cfg, s8 data_width)
 	*p_cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(data_width);
 }
 
+static void set_dst_data_width_f1c100s(u32 *p_cfg, s8 data_width)
+{
+	*p_cfg |= SUNIV_DMA_CFG_DST_DATA_WIDTH(data_width);
+}
+
+static void set_src_data_width_f1c100s(u32 *p_cfg, s8 data_width)
+{
+	*p_cfg |= SUNIV_DMA_CFG_SRC_DATA_WIDTH(data_width);
+}
+
 static int convert_burst_a10(u32 maxburst)
 {
 	if (maxburst > 8)
@@ -245,6 +273,15 @@ static int convert_burst_a10(u32 maxburst)
 	return (maxburst >> 2);
 }
 
+static int convert_burst_f1c100s(u32 maxburst)
+{
+	if (maxburst > 4)
+		return -EINVAL;
+
+	/* 1 -> 0, 4 -> 1 */
+	return (maxburst >> 2);
+}
+
 static int convert_buswidth(enum dma_slave_buswidth addr_width)
 {
 	if (addr_width > DMA_SLAVE_BUSWIDTH_4_BYTES)
@@ -1364,8 +1401,31 @@ static struct sun4i_dma_config sun4i_a10_dma_cfg = {
 	.has_reset		= false,
 };
 
+static struct sun4i_dma_config suniv_f1c100s_dma_cfg = {
+	.ndma_nr_max_channels	= SUNIV_NDMA_NR_MAX_CHANNELS,
+	.ndma_nr_max_vchans	= SUNIV_NDMA_NR_MAX_VCHANS,
+
+	.ddma_nr_max_channels	= SUNIV_DDMA_NR_MAX_CHANNELS,
+	.ddma_nr_max_vchans	= SUNIV_DDMA_NR_MAX_VCHANS,
+
+	.dma_nr_max_channels	= SUNIV_NDMA_NR_MAX_CHANNELS +
+		SUNIV_DDMA_NR_MAX_CHANNELS,
+
+	.set_dst_data_width	= set_dst_data_width_f1c100s,
+	.set_src_data_width	= set_src_data_width_f1c100s,
+	.convert_burst		= convert_burst_f1c100s,
+
+	.ndma_drq_sdram		= SUNIV_NDMA_DRQ_TYPE_SDRAM,
+	.ddma_drq_sdram		= SUNIV_DDMA_DRQ_TYPE_SDRAM,
+
+	.max_burst		= SUNIV_MAX_BURST,
+	.has_reset		= true,
+};
+
 static const struct of_device_id sun4i_dma_match[] = {
 	{ .compatible = "allwinner,sun4i-a10-dma", .data = &sun4i_a10_dma_cfg },
+	{ .compatible = "allwinner,suniv-f1c100s-dma",
+		.data = &suniv_f1c100s_dma_cfg },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, sun4i_dma_match);
-- 
2.7.4

Re: [RFC PATCH 04/10] dma-engine: sun4i: Add support for Allwinner suniv F1C100s

[Maxime Ripard]

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On Mon, Dec 03, 2018 at 12:23:11AM +0300, Mesih Kilinc wrote:
> DMA of Allwinner suniv F1C100s is similar to sun4i. It has 4 NDMA, 4
> DDMA channels and endpoints are different. Also F1C100s has reset bit
> for DMA in CCU. Add support for it.
> 
> Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
> ---
>  drivers/dma/Kconfig     |  4 ++--
>  drivers/dma/sun4i-dma.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 62 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
> index de511db..f8a65d2 100644
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -163,8 +163,8 @@ config DMA_SA11X0
>  
>  config DMA_SUN4I
>  	tristate "Allwinner A10 DMA SoCs support"
> -	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
> -	default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I)
> +	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNIV
> +	default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNIV)
>  	select DMA_ENGINE
>  	select DMA_VIRTUAL_CHANNELS
>  	help
> diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c
> index d267ff9..c0452c9 100644
> --- a/drivers/dma/sun4i-dma.c
> +++ b/drivers/dma/sun4i-dma.c
> @@ -36,7 +36,11 @@
>  #define SUN4I_DMA_CFG_SRC_ADDR_MODE(mode)	((mode) << 5)
>  #define SUN4I_DMA_CFG_SRC_DRQ_TYPE(type)	(type)
>  
> +#define SUNIV_DMA_CFG_DST_DATA_WIDTH(width)	((width) << 24)
> +#define SUNIV_DMA_CFG_SRC_DATA_WIDTH(width)	((width) << 8)
> +
>  #define SUN4I_MAX_BURST	8
> +#define SUNIV_MAX_BURST	4
>  
>  /** Normal DMA register values **/
>  
> @@ -44,6 +48,9 @@
>  #define SUN4I_NDMA_DRQ_TYPE_SDRAM		0x16
>  #define SUN4I_NDMA_DRQ_TYPE_LIMIT		(0x1F + 1)
>  
> +#define SUNIV_NDMA_DRQ_TYPE_SDRAM		0x11
> +#define SUNIV_NDMA_DRQ_TYPE_LIMIT		(0x17 + 1)
> +
>  /** Normal DMA register layout **/
>  
>  /* Dedicated DMA source/destination address mode values */
> @@ -57,6 +64,9 @@
>  #define SUN4I_NDMA_CFG_BYTE_COUNT_MODE_REMAIN	BIT(15)
>  #define SUN4I_NDMA_CFG_SRC_NON_SECURE		BIT(6)
>  
> +#define SUNIV_NDMA_CFG_CONT_MODE		BIT(29)
> +#define SUNIV_NDMA_CFG_WAIT_STATE(n)		((n) << 26)
> +
>  /** Dedicated DMA register values **/
>  
>  /* Dedicated DMA source/destination address mode values */
> @@ -69,6 +79,9 @@
>  #define SUN4I_DDMA_DRQ_TYPE_SDRAM		0x1
>  #define SUN4I_DDMA_DRQ_TYPE_LIMIT		(0x1F + 1)
>  
> +#define SUNIV_DDMA_DRQ_TYPE_SDRAM		0x1
> +#define SUNIV_DDMA_DRQ_TYPE_LIMIT		(0x9 + 1)
> +
>  /** Dedicated DMA register layout **/
>  
>  /* Dedicated DMA configuration register layout */
> @@ -122,6 +135,11 @@
>  #define SUN4I_DMA_NR_MAX_VCHANS						\
>  	(SUN4I_NDMA_NR_MAX_VCHANS + SUN4I_DDMA_NR_MAX_VCHANS)
>  
> +#define SUNIV_NDMA_NR_MAX_CHANNELS	4
> +#define SUNIV_DDMA_NR_MAX_CHANNELS	4
> +#define SUNIV_NDMA_NR_MAX_VCHANS	(24 * 2 - 1)
> +#define SUNIV_DDMA_NR_MAX_VCHANS	10
> +
>  /* This set of SUN4I_DDMA timing parameters were found experimentally while
>   * working with the SPI driver and seem to make it behave correctly */
>  #define SUN4I_DDMA_MAGIC_SPI_PARAMETERS \
> @@ -236,6 +254,16 @@ static void set_src_data_width_a10(u32 *p_cfg, s8 data_width)
>  	*p_cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(data_width);
>  }
>  
> +static void set_dst_data_width_f1c100s(u32 *p_cfg, s8 data_width)
> +{
> +	*p_cfg |= SUNIV_DMA_CFG_DST_DATA_WIDTH(data_width);
> +}
> +
> +static void set_src_data_width_f1c100s(u32 *p_cfg, s8 data_width)
> +{
> +	*p_cfg |= SUNIV_DMA_CFG_SRC_DATA_WIDTH(data_width);
> +}
> +
>  static int convert_burst_a10(u32 maxburst)
>  {
>  	if (maxburst > 8)
> @@ -245,6 +273,15 @@ static int convert_burst_a10(u32 maxburst)
>  	return (maxburst >> 2);
>  }
>  
> +static int convert_burst_f1c100s(u32 maxburst)
> +{
> +	if (maxburst > 4)
> +		return -EINVAL;
> +
> +	/* 1 -> 0, 4 -> 1 */
> +	return (maxburst >> 2);
> +}
> +

This is essentially the same function than for the A10, with a
different limit. Like a was saying, use a bitmask for the supported
bursts length, and test whether the burst is supported against that
mask. You won't have to duplicate those functions anymore.

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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Re: [RFC PATCH 04/10] dma-engine: sun4i: Add support for Allwinner suniv F1C100s

[Maxime Ripard]

[-- Attachment #1: Type: text/plain, Size: 3269 bytes --]

On Mon, Dec 03, 2018 at 12:23:11AM +0300, Mesih Kilinc wrote:
> DMA of Allwinner suniv F1C100s is similar to sun4i. It has 4 NDMA, 4
> DDMA channels and endpoints are different. Also F1C100s has reset bit
> for DMA in CCU. Add support for it.
> 
> Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
> ---
>  drivers/dma/Kconfig     |  4 ++--
>  drivers/dma/sun4i-dma.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 62 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
> index de511db..f8a65d2 100644
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -163,8 +163,8 @@ config DMA_SA11X0
>  
>  config DMA_SUN4I
>  	tristate "Allwinner A10 DMA SoCs support"
> -	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
> -	default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I)
> +	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNIV
> +	default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNIV)
>  	select DMA_ENGINE
>  	select DMA_VIRTUAL_CHANNELS
>  	help
> diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c
> index d267ff9..c0452c9 100644
> --- a/drivers/dma/sun4i-dma.c
> +++ b/drivers/dma/sun4i-dma.c
> @@ -36,7 +36,11 @@
>  #define SUN4I_DMA_CFG_SRC_ADDR_MODE(mode)	((mode) << 5)
>  #define SUN4I_DMA_CFG_SRC_DRQ_TYPE(type)	(type)
>  
> +#define SUNIV_DMA_CFG_DST_DATA_WIDTH(width)	((width) << 24)
> +#define SUNIV_DMA_CFG_SRC_DATA_WIDTH(width)	((width) << 8)
> +
>  #define SUN4I_MAX_BURST	8
> +#define SUNIV_MAX_BURST	4
>  
>  /** Normal DMA register values **/
>  
> @@ -44,6 +48,9 @@
>  #define SUN4I_NDMA_DRQ_TYPE_SDRAM		0x16
>  #define SUN4I_NDMA_DRQ_TYPE_LIMIT		(0x1F + 1)
>  
> +#define SUNIV_NDMA_DRQ_TYPE_SDRAM		0x11
> +#define SUNIV_NDMA_DRQ_TYPE_LIMIT		(0x17 + 1)

Also, you're not using that define anywhere

> +
>  /** Normal DMA register layout **/
>  
>  /* Dedicated DMA source/destination address mode values */
> @@ -57,6 +64,9 @@
>  #define SUN4I_NDMA_CFG_BYTE_COUNT_MODE_REMAIN	BIT(15)
>  #define SUN4I_NDMA_CFG_SRC_NON_SECURE		BIT(6)
>  
> +#define SUNIV_NDMA_CFG_CONT_MODE		BIT(29)
> +#define SUNIV_NDMA_CFG_WAIT_STATE(n)		((n) << 26)
> +

Or those two.

>  /** Dedicated DMA register values **/
>  
>  /* Dedicated DMA source/destination address mode values */
> @@ -69,6 +79,9 @@
>  #define SUN4I_DDMA_DRQ_TYPE_SDRAM		0x1
>  #define SUN4I_DDMA_DRQ_TYPE_LIMIT		(0x1F + 1)
>  
> +#define SUNIV_DDMA_DRQ_TYPE_SDRAM		0x1

This is the same value

> +#define SUNIV_DDMA_DRQ_TYPE_LIMIT		(0x9 + 1)
> +

And this one isn't used

>  /** Dedicated DMA register layout **/
>  
>  /* Dedicated DMA configuration register layout */
> @@ -122,6 +135,11 @@
>  #define SUN4I_DMA_NR_MAX_VCHANS						\
>  	(SUN4I_NDMA_NR_MAX_VCHANS + SUN4I_DDMA_NR_MAX_VCHANS)
>  
> +#define SUNIV_NDMA_NR_MAX_CHANNELS	4
> +#define SUNIV_DDMA_NR_MAX_CHANNELS	4
> +#define SUNIV_NDMA_NR_MAX_VCHANS	(24 * 2 - 1)
> +#define SUNIV_DDMA_NR_MAX_VCHANS	10
> +

I'm not sure we need those, you can just use the raw value in the
structure.

Also, how was the number of vchans calculated?

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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[RFC PATCH 05/10] ARM: dts: suniv: f1c100s: Add support for DMA

[Mesih Kilinc]

Allwinner suniv F1C100s now has DMA support. Enable it under device
tree.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 arch/arm/boot/dts/suniv-f1c100s.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/suniv-f1c100s.dtsi b/arch/arm/boot/dts/suniv-f1c100s.dtsi
index aff5f90..4c96a9e 100644
--- a/arch/arm/boot/dts/suniv-f1c100s.dtsi
+++ b/arch/arm/boot/dts/suniv-f1c100s.dtsi
@@ -6,6 +6,7 @@
 
 #include <dt-bindings/clock/suniv-ccu-f1c100s.h>
 #include <dt-bindings/reset/suniv-ccu-f1c100s.h>
+#include <dt-bindings/dma/sun4i-a10.h>
 
 / {
 	#address-cells = <1>;
@@ -65,6 +66,16 @@
 			};
 		};
 
+		dma: dma-controller@1c02000 {
+			compatible = "allwinner,suniv-f1c100s-dma";
+			reg = <0x01c02000 0x1000>;
+			interrupts = <18>;
+			clocks = <&ccu CLK_BUS_DMA>;
+			resets = <&ccu RST_BUS_DMA>;
+			#dma-cells = <2>;
+		};
+
+
 		ccu: clock@1c20000 {
 			compatible = "allwinner,suniv-f1c100s-ccu";
 			reg = <0x01c20000 0x400>;
-- 
2.7.4

[RFC PATCH 06/10] ASoC: sun4i-codec: Add DMA Max Burst field

[Mesih Kilinc]

Allwinner suniv F1C100s has similar DMA engine to sun4i but it has
smaller max burst size compared to sun4i. Add a quirk field to
differantitate between them.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 sound/soc/sunxi/sun4i-codec.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 9a3cb77..7a9f84e 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -224,6 +224,8 @@
 
 /* TODO H3 DAP (Digital Audio Processing) bits */
 
+#define SUN4I_DMA_MAX_BURST			(8)
+
 struct sun4i_codec {
 	struct device	*dev;
 	struct regmap	*regmap;
@@ -1462,6 +1464,7 @@ struct sun4i_codec_quirks {
 	unsigned int reg_dac_txdata;	/* TX FIFO offset for DMA config */
 	unsigned int reg_adc_rxdata;	/* RX FIFO offset for DMA config */
 	bool has_reset;
+	u32 dma_max_burst;
 };
 
 static const struct sun4i_codec_quirks sun4i_codec_quirks = {
@@ -1471,6 +1474,7 @@ static const struct sun4i_codec_quirks sun4i_codec_quirks = {
 	.reg_adc_fifoc	= REG_FIELD(SUN4I_CODEC_ADC_FIFOC, 0, 31),
 	.reg_dac_txdata	= SUN4I_CODEC_DAC_TXDATA,
 	.reg_adc_rxdata	= SUN4I_CODEC_ADC_RXDATA,
+	.dma_max_burst	= SUN4I_DMA_MAX_BURST,
 };
 
 static const struct sun4i_codec_quirks sun6i_a31_codec_quirks = {
@@ -1481,6 +1485,7 @@ static const struct sun4i_codec_quirks sun6i_a31_codec_quirks = {
 	.reg_dac_txdata	= SUN4I_CODEC_DAC_TXDATA,
 	.reg_adc_rxdata	= SUN6I_CODEC_ADC_RXDATA,
 	.has_reset	= true,
+	.dma_max_burst	= SUN4I_DMA_MAX_BURST,
 };
 
 static const struct sun4i_codec_quirks sun7i_codec_quirks = {
@@ -1490,6 +1495,7 @@ static const struct sun4i_codec_quirks sun7i_codec_quirks = {
 	.reg_adc_fifoc	= REG_FIELD(SUN4I_CODEC_ADC_FIFOC, 0, 31),
 	.reg_dac_txdata	= SUN4I_CODEC_DAC_TXDATA,
 	.reg_adc_rxdata	= SUN4I_CODEC_ADC_RXDATA,
+	.dma_max_burst	= SUN4I_DMA_MAX_BURST,
 };
 
 static const struct sun4i_codec_quirks sun8i_a23_codec_quirks = {
@@ -1500,6 +1506,7 @@ static const struct sun4i_codec_quirks sun8i_a23_codec_quirks = {
 	.reg_dac_txdata	= SUN4I_CODEC_DAC_TXDATA,
 	.reg_adc_rxdata	= SUN6I_CODEC_ADC_RXDATA,
 	.has_reset	= true,
+	.dma_max_burst	= SUN4I_DMA_MAX_BURST,
 };
 
 static const struct sun4i_codec_quirks sun8i_h3_codec_quirks = {
@@ -1515,6 +1522,7 @@ static const struct sun4i_codec_quirks sun8i_h3_codec_quirks = {
 	.reg_dac_txdata	= SUN8I_H3_CODEC_DAC_TXDATA,
 	.reg_adc_rxdata	= SUN6I_CODEC_ADC_RXDATA,
 	.has_reset	= true,
+	.dma_max_burst	= SUN4I_DMA_MAX_BURST,
 };
 
 static const struct sun4i_codec_quirks sun8i_v3s_codec_quirks = {
@@ -1529,6 +1537,7 @@ static const struct sun4i_codec_quirks sun8i_v3s_codec_quirks = {
 	.reg_dac_txdata	= SUN8I_H3_CODEC_DAC_TXDATA,
 	.reg_adc_rxdata	= SUN6I_CODEC_ADC_RXDATA,
 	.has_reset	= true,
+	.dma_max_burst	= SUN4I_DMA_MAX_BURST,
 };
 
 static const struct of_device_id sun4i_codec_of_match[] = {
@@ -1655,12 +1664,12 @@ static int sun4i_codec_probe(struct platform_device *pdev)
 
 	/* DMA configuration for TX FIFO */
 	scodec->playback_dma_data.addr = res->start + quirks->reg_dac_txdata;
-	scodec->playback_dma_data.maxburst = 8;
+	scodec->playback_dma_data.maxburst = quirks->dma_max_burst;
 	scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
 
 	/* DMA configuration for RX FIFO */
 	scodec->capture_dma_data.addr = res->start + quirks->reg_adc_rxdata;
-	scodec->capture_dma_data.maxburst = 8;
+	scodec->capture_dma_data.maxburst = quirks->dma_max_burst;
 	scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
 
 	ret = devm_snd_soc_register_component(&pdev->dev, quirks->codec,
-- 
2.7.4

[RFC PATCH 07/10] dt-bindigs: sound: Add Allwinner suniv F1C100s Audio Codec

[Mesih Kilinc]

Add compatible string for Allwinner suniv F1C100s audio codec.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 Documentation/devicetree/bindings/sound/sun4i-codec.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
index 66579bb..9778bc1 100644
--- a/Documentation/devicetree/bindings/sound/sun4i-codec.txt
+++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
@@ -8,6 +8,7 @@ Required properties:
 		- "allwinner,sun8i-a23-codec"
 		- "allwinner,sun8i-h3-codec"
 		- "allwinner,sun8i-v3s-codec"
+		- "allwinner,suniv-f1c100s-codec"
 - reg: must contain the registers location and length
 - interrupts: must contain the codec interrupt
 - dmas: DMA channels for tx and rx dma. See the DMA client binding,
@@ -27,6 +28,7 @@ Required properties for the following compatibles:
 		- "allwinner,sun8i-a23-codec"
 		- "allwinner,sun8i-h3-codec"
 		- "allwinner,sun8i-v3s-codec"
+		- "allwinner,suniv-f1c100s-codec"
 - resets: phandle to the reset control for this device
 - allwinner,audio-routing: A list of the connections between audio components.
 			   Each entry is a pair of strings, the first being the
@@ -41,6 +43,7 @@ Required properties for the following compatibles:
 			   "MIC1"
 			   "MIC2"	(not on sun8i-v3s)
 			   "MIC3"	(sun6i-a31 only)
+			   "MIC"	(suniv-f1c100s only)
 
 			   Microphone biases from the SoC:
 			   "HBIAS"
@@ -51,6 +54,8 @@ Required properties for the following compatibles:
 			   "Headset Mic"
 			   "Line In"
 			   "Line Out"
+			   "Right FM In"	(suniv-f1c100s only)
+			   "Left FM In"		(suniv-f1c100s only)
 			   "Mic"
 			   "Speaker"
 
-- 
2.7.4

Re: [RFC PATCH 07/10] dt-bindigs: sound: Add Allwinner suniv F1C100s Audio Codec

[Rob Herring]

On Mon, Dec 03, 2018 at 12:23:14AM +0300, Mesih Kilinc wrote:
> Add compatible string for Allwinner suniv F1C100s audio codec.

Typo in the subject. Otherwise,

Reviewed-by: Rob Herring <robh@kernel.org>

> 
> Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
> ---
>  Documentation/devicetree/bindings/sound/sun4i-codec.txt | 5 +++++
>  1 file changed, 5 insertions(+)

[RFC PATCH 08/10] ASoC: sun4i-codec: Add support for Allwinner suniv F1C100s

[Mesih Kilinc]

Allwinner suniv F1C100s has similar but primitive audio codec
comparared to sun4i. Add support for it.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 sound/soc/sunxi/sun4i-codec.c | 358 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 358 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 7a9f84e..08a3cb0 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -4,6 +4,7 @@
  * Copyright 2015 Maxime Ripard <maxime.ripard@free-electrons.com>
  * Copyright 2015 Adam Sampson <ats@offog.org>
  * Copyright 2016 Chen-Yu Tsai <wens@csie.org>
+ * Copyright 2018 Mesih Kilinc <mesihkilinc@gmail.com>
  *
  * Based on the Allwinner SDK driver, released under the GPL.
  *
@@ -226,6 +227,62 @@
 
 #define SUN4I_DMA_MAX_BURST			(8)
 
+/* suniv specific registers */
+
+#define SUNIV_DMA_MAX_BURST			(4)
+
+/* Codec DAC digital controls and FIFO registers */
+#define SUNIV_CODEC_ADC_FIFOC			(0x10)
+#define SUNIV_CODEC_ADC_FIFOC_EN_AD		(28)
+#define SUNIV_CODEC_ADC_FIFOS			(0x14)
+#define SUNIV_CODEC_ADC_RXDATA			(0x18)
+
+/* Output mixer and gain controls */
+#define SUNIV_CODEC_OM_DACA_CTRL			(0x20)
+#define SUNIV_CODEC_OM_DACA_CTRL_DACAREN		(31)
+#define SUNIV_CODEC_OM_DACA_CTRL_DACALEN		(30)
+#define SUNIV_CODEC_OM_DACA_CTRL_RMIXEN			(29)
+#define SUNIV_CODEC_OM_DACA_CTRL_LMIXEN			(28)
+#define SUNIV_CODEC_OM_DACA_CTRL_RHPPAMUTE		(27)
+#define SUNIV_CODEC_OM_DACA_CTRL_LHPPAMUTE		(26)
+#define SUNIV_CODEC_OM_DACA_CTRL_RHPIS			(25)
+#define SUNIV_CODEC_OM_DACA_CTRL_LHPIS			(24)
+#define SUNIV_CODEC_OM_DACA_CTRL_HPCOM_CTL		(22)
+#define SUNIV_CODEC_OM_DACA_CTRL_COMPTEN		(21)
+#define SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_MICIN		(20)
+#define SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_LINEIN	(19)
+#define SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_FMIN		(18)
+#define SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_RDAC		(17)
+#define SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_LDAC		(16)
+#define SUNIV_CODEC_OM_DACA_CTRL_HPPAEN			(15)
+#define SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_MICIN		(12)
+#define SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_LINEIN	(11)
+#define SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_FMIN		(10)
+#define SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_LDAC		(9)
+#define SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_RDAC		(8)
+#define SUNIV_CODEC_OM_DACA_CTRL_LTLNMUTE		(7)
+#define SUNIV_CODEC_OM_DACA_CTRL_RTLNMUTE		(6)
+#define SUNIV_CODEC_OM_DACA_CTRL_HPVOL			(0)
+
+/* Analog Input Mixer controls */
+#define SUNIV_CODEC_ADC_ACTL		(0x24)
+#define SUNIV_CODEC_ADC_ADCEN		(31)
+#define SUNIV_CODEC_ADC_MICG		(24)
+#define SUNIV_CODEC_ADC_LINEINVOL	(21)
+#define SUNIV_CODEC_ADC_ADCG		(16)
+#define SUNIV_CODEC_ADC_ADCMIX_MIC	(13)
+#define SUNIV_CODEC_ADC_ADCMIX_FMINL	(12)
+#define SUNIV_CODEC_ADC_ADCMIX_FMINR	(11)
+#define SUNIV_CODEC_ADC_ADCMIX_LINEIN	(10)
+#define SUNIV_CODEC_ADC_ADCMIX_LOUT	(9)
+#define SUNIV_CODEC_ADC_ADCMIX_ROUT	(8)
+#define SUNIV_CODEC_ADC_PASPEEDSELECT	(7)
+#define SUNIV_CODEC_ADC_FMINVOL		(4)
+#define SUNIV_CODEC_ADC_MICAMPEN	(3)
+#define SUNIV_CODEC_ADC_MICBOOST	(0)
+
+#define SUNIV_CODEC_ADC_DBG		(0x4c)
+
 struct sun4i_codec {
 	struct device	*dev;
 	struct regmap	*regmap;
@@ -1143,6 +1200,233 @@ static const struct snd_soc_component_driver sun8i_a23_codec_codec = {
 	.non_legacy_dai_naming	= 1,
 };
 
+/*suniv F1C100s codec */
+
+/* headphone controls */
+static const char * const suniv_codec_hp_src_enum_text[] = {
+	"DAC", "Mixer",
+};
+
+static SOC_ENUM_DOUBLE_DECL(suniv_codec_hp_src_enum,
+			    SUNIV_CODEC_OM_DACA_CTRL,
+			    SUNIV_CODEC_OM_DACA_CTRL_LHPIS,
+			    SUNIV_CODEC_OM_DACA_CTRL_RHPIS,
+			    suniv_codec_hp_src_enum_text);
+
+static const struct snd_kcontrol_new suniv_codec_hp_src[] = {
+	SOC_DAPM_ENUM("Headphone Source Playback Route",
+		      suniv_codec_hp_src_enum),
+};
+
+
+/* mixer controls */
+static const struct snd_kcontrol_new suniv_codec_adc_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Right Out Capture Switch", SUNIV_CODEC_ADC_ACTL,
+			SUNIV_CODEC_ADC_ADCMIX_ROUT, 1, 0),
+	SOC_DAPM_SINGLE("Left Out Capture Switch", SUNIV_CODEC_ADC_ACTL,
+			SUNIV_CODEC_ADC_ADCMIX_LOUT, 1, 0),
+	SOC_DAPM_SINGLE("Line In Capture Switch", SUNIV_CODEC_ADC_ACTL,
+			SUNIV_CODEC_ADC_ADCMIX_LINEIN, 1, 0),
+	SOC_DAPM_SINGLE("Right FM In Capture Switch", SUNIV_CODEC_ADC_ACTL,
+			SUNIV_CODEC_ADC_ADCMIX_FMINR, 1, 0),
+	SOC_DAPM_SINGLE("Left FM In Capture Switch", SUNIV_CODEC_ADC_ACTL,
+			SUNIV_CODEC_ADC_ADCMIX_FMINL, 1, 0),
+	SOC_DAPM_SINGLE("Mic Capture Switch", SUNIV_CODEC_ADC_ACTL,
+			SUNIV_CODEC_ADC_ADCMIX_MIC, 1, 0),
+};
+
+static const struct snd_kcontrol_new suniv_codec_dac_lmixer_controls[] = {
+	SOC_DAPM_SINGLE("Right DAC Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_RDAC, 1, 0),
+	SOC_DAPM_SINGLE("Left DAC Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_LDAC, 1, 0),
+	SOC_DAPM_SINGLE("FM In Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_FMIN, 1, 0),
+	SOC_DAPM_SINGLE("Line In Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_LINEIN, 1, 0),
+	SOC_DAPM_SINGLE("Mic In Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_LMIXMUTE_MICIN, 1, 0),
+};
+
+static const struct snd_kcontrol_new suniv_codec_dac_rmixer_controls[] = {
+	SOC_DAPM_SINGLE("Left DAC Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_LDAC, 1, 0),
+	SOC_DAPM_SINGLE("Right DAC Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_RDAC, 1, 0),
+	SOC_DAPM_SINGLE("FM In Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_FMIN, 1, 0),
+	SOC_DAPM_SINGLE("Line In Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_LINEIN, 1, 0),
+	SOC_DAPM_SINGLE("Mic In Playback Switch", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_RMIXMUTE_MICIN, 1, 0),
+};
+
+
+static const DECLARE_TLV_DB_SCALE(suniv_codec_dvol_scale, -7308, 116, 0);
+static const DECLARE_TLV_DB_SCALE(suniv_codec_hp_vol_scale, -6300, 100, 1);
+static const DECLARE_TLV_DB_SCALE(suniv_codec_out_mixer_pregain_scale,
+				  -450, 150, 0);
+
+static const DECLARE_TLV_DB_RANGE(suniv_codec_mic_gain_scale,
+	0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
+	1, 7, TLV_DB_SCALE_ITEM(2400, 300, 0),
+);
+
+
+static const struct snd_kcontrol_new suniv_codec_codec_widgets[] = {
+	SOC_SINGLE_TLV("DAC Playback Volume", SUN4I_CODEC_DAC_DPC,
+		       SUN4I_CODEC_DAC_DPC_DVOL, 0x3f, 1,
+		       suniv_codec_dvol_scale),
+	SOC_SINGLE_TLV("Headphone Playback Volume",
+		       SUNIV_CODEC_OM_DACA_CTRL,
+		       SUNIV_CODEC_OM_DACA_CTRL_HPVOL, 0x3f, 0,
+		       suniv_codec_hp_vol_scale),
+	SOC_DOUBLE("Headphone Playback Switch",
+		   SUNIV_CODEC_OM_DACA_CTRL,
+		   SUNIV_CODEC_OM_DACA_CTRL_LHPPAMUTE,
+		   SUNIV_CODEC_OM_DACA_CTRL_RHPPAMUTE, 1, 0),
+	SOC_SINGLE_TLV("Line In Playback Volume",
+		       SUNIV_CODEC_ADC_ACTL, SUNIV_CODEC_ADC_LINEINVOL,
+		       0x7, 0, suniv_codec_out_mixer_pregain_scale),
+	SOC_SINGLE_TLV("FM In Playback Volume",
+		       SUNIV_CODEC_ADC_ACTL, SUNIV_CODEC_ADC_FMINVOL,
+		       0x7, 0, suniv_codec_out_mixer_pregain_scale),
+	SOC_SINGLE_TLV("Mic In Playback Volume",
+		       SUNIV_CODEC_ADC_ACTL, SUNIV_CODEC_ADC_MICG,
+		       0x7, 0, suniv_codec_out_mixer_pregain_scale),
+
+	/* Microphone Amp boost gains */
+	SOC_SINGLE_TLV("Mic Boost Volume", SUNIV_CODEC_ADC_ACTL,
+		       SUNIV_CODEC_ADC_MICBOOST, 0x7, 0,
+		       suniv_codec_mic_gain_scale),
+	SOC_SINGLE_TLV("ADC Capture Volume",
+		       SUNIV_CODEC_ADC_ACTL, SUNIV_CODEC_ADC_ADCG,
+		       0x7, 0, suniv_codec_out_mixer_pregain_scale),
+};
+
+static const struct snd_soc_dapm_widget suniv_codec_codec_dapm_widgets[] = {
+	/* Microphone inputs */
+	SND_SOC_DAPM_INPUT("MIC"),
+
+	/* Microphone Bias */
+	/* deleted: HBIAS, MBIAS */
+
+	/* Mic input path */
+	SND_SOC_DAPM_PGA("Mic Amplifier", SUNIV_CODEC_ADC_ACTL,
+			 SUNIV_CODEC_ADC_MICAMPEN, 0, NULL, 0),
+
+	/* Line In */
+	SND_SOC_DAPM_INPUT("LINEIN"),
+
+	/* FM In */
+	SND_SOC_DAPM_INPUT("FMINR"),
+	SND_SOC_DAPM_INPUT("FMINL"),
+
+	/* Digital parts of the ADCs */
+	SND_SOC_DAPM_SUPPLY("ADC Enable", SUNIV_CODEC_ADC_FIFOC,
+			    SUNIV_CODEC_ADC_FIFOC_EN_AD, 0,
+			    NULL, 0),
+
+	/* Analog parts of the ADCs */
+	SND_SOC_DAPM_ADC("ADC", "Codec Capture", SUNIV_CODEC_ADC_ACTL,
+			 SUNIV_CODEC_ADC_ADCEN, 0),
+
+	/* ADC Mixers */
+	SOC_MIXER_ARRAY("ADC Mixer", SUNIV_CODEC_ADC_ACTL,
+			 SND_SOC_NOPM, 0,
+			 suniv_codec_adc_mixer_controls),
+
+	/* Digital parts of the DACs */
+	SND_SOC_DAPM_SUPPLY("DAC Enable", SUN4I_CODEC_DAC_DPC,
+			    SUN4I_CODEC_DAC_DPC_EN_DA, 0,
+			    NULL, 0),
+
+	/* Analog parts of the DACs */
+	SND_SOC_DAPM_DAC("Left DAC", "Codec Playback",
+			 SUNIV_CODEC_OM_DACA_CTRL,
+			 SUNIV_CODEC_OM_DACA_CTRL_DACALEN, 0),
+	SND_SOC_DAPM_DAC("Right DAC", "Codec Playback",
+			 SUNIV_CODEC_OM_DACA_CTRL,
+			 SUNIV_CODEC_OM_DACA_CTRL_DACAREN, 0),
+
+	/* Mixers */
+	SOC_MIXER_ARRAY("Left Mixer", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_LMIXEN, 0,
+			suniv_codec_dac_lmixer_controls),
+	SOC_MIXER_ARRAY("Right Mixer", SUNIV_CODEC_OM_DACA_CTRL,
+			SUNIV_CODEC_OM_DACA_CTRL_RMIXEN, 0,
+			suniv_codec_dac_rmixer_controls),
+
+	/* Headphone output path */
+	SND_SOC_DAPM_MUX("Headphone Source Playback Route",
+			 SND_SOC_NOPM, 0, 0, suniv_codec_hp_src),
+	SND_SOC_DAPM_OUT_DRV("Headphone Amp", SUNIV_CODEC_OM_DACA_CTRL,
+			     SUNIV_CODEC_OM_DACA_CTRL_HPPAEN, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("HPCOM Protection", SUNIV_CODEC_OM_DACA_CTRL,
+			    SUNIV_CODEC_OM_DACA_CTRL_COMPTEN, 0, NULL, 0),
+	SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPCOM", SUNIV_CODEC_OM_DACA_CTRL,
+			 SUNIV_CODEC_OM_DACA_CTRL_HPCOM_CTL, 0x3, 0x3, 0),
+	SND_SOC_DAPM_OUTPUT("HP"),
+};
+
+static const struct snd_soc_dapm_route suniv_codec_codec_dapm_routes[] = {
+	/* DAC Routes */
+	{ "Left DAC", NULL, "DAC Enable" },
+	{ "Right DAC", NULL, "DAC Enable" },
+
+	/* Microphone Routes */
+	{ "Mic Amplifier", NULL, "MIC"},
+
+	/* Left Mixer Routes */
+	{ "Left Mixer", "Right DAC Playback Switch", "Right DAC" },
+	{ "Left Mixer", "Left DAC Playback Switch", "Left DAC" },
+	{ "Left Mixer", "FM In Playback Switch", "FMINL" },
+	{ "Left Mixer", "Line In Playback Switch", "LINEIN" },
+	{ "Left Mixer", "Mic In Playback Switch", "Mic Amplifier" },
+
+	/* Right Mixer Routes */
+	{ "Right Mixer", "Left DAC Playback Switch", "Left DAC" },
+	{ "Right Mixer", "Right DAC Playback Switch", "Right DAC" },
+	{ "Right Mixer", "FM In Playback Switch", "FMINR" },
+	{ "Right Mixer", "Line In Playback Switch", "LINEIN" },
+	{ "Right Mixer", "Mic In Playback Switch", "Mic Amplifier" },
+
+	/* ADC Mixer Routes */
+	{ "ADC Mixer", "Right Out Capture Switch", "Right Mixer" },
+	{ "ADC Mixer", "Left Out Capture Switch", "Left Mixer" },
+	{ "ADC Mixer", "Line In Capture Switch", "LINEIN" },
+	{ "ADC Mixer", "Right FM In Capture Switch", "FMINR" },
+	{ "ADC Mixer", "Left FM In Capture Switch", "FMINL" },
+	{ "ADC Mixer", "Mic Capture Switch", "Mic Amplifier" },
+
+	/* Headphone Routes */
+	{ "Headphone Source Playback Route", "DAC", "Left DAC" },
+	{ "Headphone Source Playback Route", "DAC", "Right DAC" },
+	{ "Headphone Source Playback Route", "Mixer", "Left Mixer" },
+	{ "Headphone Source Playback Route", "Mixer", "Right Mixer" },
+	{ "Headphone Amp", NULL, "Headphone Source Playback Route" },
+	{ "HP", NULL, "Headphone Amp" },
+	{ "HPCOM", NULL, "HPCOM Protection" },
+
+	/* ADC Routes */
+	{ "ADC", NULL, "ADC Mixer" },
+	{ "ADC", NULL, "ADC Enable" },
+};
+
+static const struct snd_soc_component_driver suniv_codec_codec = {
+	.controls		= suniv_codec_codec_widgets,
+	.num_controls		= ARRAY_SIZE(suniv_codec_codec_widgets),
+	.dapm_widgets		= suniv_codec_codec_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(suniv_codec_codec_dapm_widgets),
+	.dapm_routes		= suniv_codec_codec_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(suniv_codec_codec_dapm_routes),
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+	.non_legacy_dai_naming	= 1,
+};
+
+
 static const struct snd_soc_component_driver sun4i_codec_component = {
 	.name = "sun4i-codec",
 };
@@ -1414,6 +1698,57 @@ static struct snd_soc_card *sun8i_v3s_codec_create_card(struct device *dev)
 	return card;
 };
 
+static const struct snd_soc_dapm_widget suniv_codec_card_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_LINE("Line In", NULL),
+	SND_SOC_DAPM_LINE("Right FM In", NULL),
+	SND_SOC_DAPM_LINE("Left FM In", NULL),
+	SND_SOC_DAPM_MIC("Mic", NULL),
+	SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event),
+};
+
+/* Connect digital side enables to analog side widgets */
+static const struct snd_soc_dapm_route suniv_codec_card_routes[] = {
+	/* ADC Routes */
+	{ "ADC", NULL, "ADC Enable" },
+	{ "Codec Capture", NULL, "ADC" },
+
+	/* DAC Routes */
+	{ "Left DAC", NULL, "DAC Enable" },
+	{ "Right DAC", NULL, "DAC Enable" },
+	{ "Left DAC", NULL, "Codec Playback" },
+	{ "Right DAC", NULL, "Codec Playback" },
+};
+
+
+static struct snd_soc_card *suniv_codec_create_card(struct device *dev)
+{
+	struct snd_soc_card *card;
+	int ret;
+
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return ERR_PTR(-ENOMEM);
+
+	card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
+	if (!card->dai_link)
+		return ERR_PTR(-ENOMEM);
+
+	card->dev		= dev;
+	card->name		= "F1C100s Audio Codec";
+	card->dapm_widgets	= suniv_codec_card_dapm_widgets;
+	card->num_dapm_widgets	= ARRAY_SIZE(suniv_codec_card_dapm_widgets);
+	card->dapm_routes	= suniv_codec_card_routes;
+	card->num_dapm_routes	= ARRAY_SIZE(suniv_codec_card_routes);
+	card->fully_routed	= true;
+
+	ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
+	if (ret)
+		dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
+
+	return card;
+};
+
 static const struct regmap_config sun4i_codec_regmap_config = {
 	.reg_bits	= 32,
 	.reg_stride	= 4,
@@ -1456,6 +1791,13 @@ static const struct regmap_config sun8i_v3s_codec_regmap_config = {
 	.max_register	= SUN8I_H3_CODEC_ADC_DBG,
 };
 
+static const struct regmap_config suniv_codec_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= SUNIV_CODEC_ADC_DBG,
+};
+
 struct sun4i_codec_quirks {
 	const struct regmap_config *regmap_config;
 	const struct snd_soc_component_driver *codec;
@@ -1540,6 +1882,17 @@ static const struct sun4i_codec_quirks sun8i_v3s_codec_quirks = {
 	.dma_max_burst	= SUN4I_DMA_MAX_BURST,
 };
 
+static const struct sun4i_codec_quirks suniv_f1c100s_codec_quirks = {
+	.regmap_config	= &suniv_codec_regmap_config,
+	.codec		= &suniv_codec_codec,
+	.create_card	= suniv_codec_create_card,
+	.reg_adc_fifoc	= REG_FIELD(SUNIV_CODEC_ADC_FIFOC, 0, 31),
+	.reg_dac_txdata	= SUN4I_CODEC_DAC_TXDATA,
+	.reg_adc_rxdata	= SUNIV_CODEC_ADC_RXDATA,
+	.has_reset	= true,
+	.dma_max_burst	= SUNIV_DMA_MAX_BURST,
+};
+
 static const struct of_device_id sun4i_codec_of_match[] = {
 	{
 		.compatible = "allwinner,sun4i-a10-codec",
@@ -1565,6 +1918,10 @@ static const struct of_device_id sun4i_codec_of_match[] = {
 		.compatible = "allwinner,sun8i-v3s-codec",
 		.data = &sun8i_v3s_codec_quirks,
 	},
+	{
+		.compatible = "allwinner,suniv-f1c100s-codec",
+		.data = &suniv_f1c100s_codec_quirks,
+	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, sun4i_codec_of_match);
@@ -1746,4 +2103,5 @@ MODULE_AUTHOR("Emilio López <emilio@elopez.com.ar>");
 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
 MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
 MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
+MODULE_AUTHOR("Mesih Kilinc <mesikilinc@gmail.com>");
 MODULE_LICENSE("GPL");
-- 
2.7.4

[RFC PATCH 09/10] ARM: dts: suniv: f1c100s: Add support for Audio Codec

[Mesih Kilinc]

Allwinner suniv F1C100s now has basic audio codec support. Enable it
under device tree.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 arch/arm/boot/dts/suniv-f1c100s.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/suniv-f1c100s.dtsi b/arch/arm/boot/dts/suniv-f1c100s.dtsi
index 4c96a9e..130d31e 100644
--- a/arch/arm/boot/dts/suniv-f1c100s.dtsi
+++ b/arch/arm/boot/dts/suniv-f1c100s.dtsi
@@ -154,5 +154,19 @@
 			resets = <&ccu 26>;
 			status = "disabled";
 		};
+
+		codec: codec@1c23c00 {
+			#sound-dai-cells = <0>;
+			compatible = "allwinner,suniv-f1c100s-codec";
+			reg = <0x01c23c00 0x400>;
+			interrupts = <21>;
+			clocks = <&ccu CLK_BUS_CODEC>, <&ccu CLK_CODEC>;
+			clock-names = "apb", "codec";
+			dmas = <&dma SUN4I_DMA_NORMAL 12>,
+			       <&dma SUN4I_DMA_NORMAL 12>;
+			dma-names = "rx", "tx";
+			resets = <&ccu RST_BUS_CODEC>;
+			status = "disabled";
+		};
 	};
 };
-- 
2.7.4

[RFC PATCH 10/10] ARM: dts: suniv: f1c100s: Activate Audio Codec for Lichee Pi Nano

[Mesih Kilinc]

Allwinner suniv F1C100s now has basic audio codec support. Activate it
for Lichee Pi Nano board.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts b/arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts
index a1154e6..7618f8c 100644
--- a/arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts
+++ b/arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts
@@ -24,3 +24,11 @@
 	pinctrl-0 = <&uart0_pe_pins>;
 	status = "okay";
 };
+
+&codec {
+	allwinner,audio-routing =
+		"Headphone", "HP",
+		"Headphone", "HPCOM",
+		"MIC", "Mic";
+	status = "okay";
+};
-- 
2.7.4