Commit ad32d0c7 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mark Brown
Browse files

ASoC: rsnd: add rsnd_gen_dma_addr() for DMAC addr 



The DMAC src/dst addr needs to be set from driver when DT case.
(It was set from SoC/DMAEngine code when non-DT case)
This patch adds rsnd_gen_dma_addr() to set DMAC src/dst addr.

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 199e7688

sound/soc/sh/rcar/core.c

+1 −4
Original line number Diff line number Diff line
@@ -358,10 +358,7 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, 
		return -EIO;

	}



	cfg.slave_id	= id;

	cfg.dst_addr	= 0; /* use default addr when playback */

	cfg.src_addr	= 0; /* use default addr when capture */

	cfg.direction	= is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;

	rsnd_gen_dma_addr(priv, dma, &cfg, is_play, id);



	ret = dmaengine_slave_config(dma->chan, &cfg);

	if (ret < 0)

sound/soc/sh/rcar/gen.c

+95 −0
Original line number Diff line number Diff line
@@ -155,6 +155,101 @@ static int rsnd_gen_regmap_init(struct rsnd_priv *priv, 
	return 0;

}



/*

 *	DMA read/write register offset

 *

 *	RSND_xxx_I_N	for Audio DMAC input

 *	RSND_xxx_O_N	for Audio DMAC output

 *	RSND_xxx_I_P	for Audio DMAC peri peri input

 *	RSND_xxx_O_P	for Audio DMAC peri peri output

 *

 *	ex) R-Car H2 case

 *	      mod        / DMAC in    / DMAC out   / DMAC PP in / DMAC pp out

 *	SSI : 0xec541000 / 0xec241008 / 0xec24100c / 0xec400000 / 0xec400000

 *	SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000

 *	CMD : 0xec500000 / 0xec008000                             0xec308000

 */

#define RDMA_SSI_I_N(addr, i)	(addr ##_reg - 0x00300000 + (0x40 * i) + 0x8)

#define RDMA_SSI_O_N(addr, i)	(addr ##_reg - 0x00300000 + (0x40 * i) + 0xc)



#define RDMA_SSI_I_P(addr, i)	(addr ##_reg - 0x00141000 + (0x1000 * i))

#define RDMA_SSI_O_P(addr, i)	(addr ##_reg - 0x00141000 + (0x1000 * i))



#define RDMA_SRC_I_N(addr, i)	(addr ##_reg - 0x00500000 + (0x400 * i))

#define RDMA_SRC_O_N(addr, i)	(addr ##_reg - 0x004fc000 + (0x400 * i))



#define RDMA_SRC_I_P(addr, i)	(addr ##_reg - 0x00200000 + (0x400 * i))

#define RDMA_SRC_O_P(addr, i)	(addr ##_reg - 0x001fc000 + (0x400 * i))



#define RDMA_CMD_O_N(addr, i)	(addr ##_reg - 0x004f8000 + (0x400 * i))

#define RDMA_CMD_O_P(addr, i)	(addr ##_reg - 0x001f8000 + (0x400 * i))



void rsnd_gen_dma_addr(struct rsnd_priv *priv,

		       struct rsnd_dma *dma,

		       struct dma_slave_config *cfg,

		       int is_play, int slave_id)

{

	struct platform_device *pdev = rsnd_priv_to_pdev(priv);

	struct device *dev = rsnd_priv_to_dev(priv);

	struct rsnd_mod *mod = rsnd_dma_to_mod(dma);

	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);

	dma_addr_t ssi_reg = platform_get_resource(pdev,

				IORESOURCE_MEM, RSND_GEN2_SSI)->start;

	dma_addr_t src_reg = platform_get_resource(pdev,

				IORESOURCE_MEM, RSND_GEN2_SCU)->start;

	int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod);

	int use_src = !!rsnd_io_to_mod_src(io);

	int use_dvc = !!rsnd_io_to_mod_dvc(io);

	int id = rsnd_mod_id(mod);

	struct dma_addr {

		dma_addr_t src_addr;

		dma_addr_t dst_addr;

	} dma_addrs[2][2][3] = {

		{ /* SRC */

			/* Capture */

			{{ 0,				0 },

			 { RDMA_SRC_O_N(src, id),	0 },

			 { RDMA_CMD_O_N(src, id),	0 }},

			/* Playback */

			{{ 0,				0, },

			 { 0,				RDMA_SRC_I_N(src, id) },

			 { 0,				RDMA_SRC_I_N(src, id) }}

		}, { /* SSI */

			/* Capture */

			{{ RDMA_SSI_O_N(ssi, id),	0 },

			 { RDMA_SSI_O_P(ssi, id),	RDMA_SRC_I_P(src, id) },

			 { RDMA_SSI_O_P(ssi, id),	RDMA_SRC_I_P(src, id) }},

			/* Playback */

			{{ 0,				RDMA_SSI_I_N(ssi, id) },

			 { RDMA_SRC_O_P(src, id),	RDMA_SSI_I_P(ssi, id) },

			 { RDMA_CMD_O_P(src, id),	RDMA_SSI_I_P(ssi, id) }}

		}

	};



	cfg->slave_id	= slave_id;

	cfg->src_addr	= 0;

	cfg->dst_addr	= 0;

	cfg->direction	= is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;



	/*

	 * gen1 uses default DMA addr

	 */

	if (rsnd_is_gen1(priv))

		return;



	/* it shouldn't happen */

	if (use_dvc & !use_src) {

		dev_err(dev, "DVC is selected without SRC\n");

		return;

	}



	cfg->src_addr = dma_addrs[is_ssi][is_play][use_src + use_dvc].src_addr;

	cfg->dst_addr = dma_addrs[is_ssi][is_play][use_src + use_dvc].dst_addr;



	dev_dbg(dev, "dma%d addr - src : %x / dst : %x\n",

		id, cfg->src_addr, cfg->dst_addr);

}



/*

 *		Gen2

 */

sound/soc/sh/rcar/rsnd.h

+5 −0
Original line number Diff line number Diff line
@@ -281,6 +281,11 @@ int rsnd_gen_probe(struct platform_device *pdev, 
void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,

			       struct rsnd_mod *mod,

			       enum rsnd_reg reg);

void rsnd_gen_dma_addr(struct rsnd_priv *priv,

		       struct rsnd_dma *dma,

		       struct dma_slave_config *cfg,

		       int is_play,  int slave_id);



#define rsnd_is_gen1(s)		(((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)

#define rsnd_is_gen2(s)		(((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)

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