Merge branch 'topic/s3c64xx' into for-linus

arch/arm/mach-s3c64xx/pl080.c

@@ -117,6 +117,25 @@ static struct pl08x_channel_data s3c64xx_dma0_info[] = {
 	}
 };
 
+static const struct dma_slave_map s3c64xx_dma0_slave_map[] = {
+	{ "s3c6400-uart.0", "tx", &s3c64xx_dma0_info[0] },
+	{ "s3c6400-uart.0", "rx", &s3c64xx_dma0_info[1] },
+	{ "s3c6400-uart.1", "tx", &s3c64xx_dma0_info[2] },
+	{ "s3c6400-uart.1", "rx", &s3c64xx_dma0_info[3] },
+	{ "s3c6400-uart.2", "tx", &s3c64xx_dma0_info[4] },
+	{ "s3c6400-uart.2", "rx", &s3c64xx_dma0_info[5] },
+	{ "s3c6400-uart.3", "tx", &s3c64xx_dma0_info[6] },
+	{ "s3c6400-uart.3", "rx", &s3c64xx_dma0_info[7] },
+	{ "samsung-pcm.0", "tx", &s3c64xx_dma0_info[8] },
+	{ "samsung-pcm.0", "rx", &s3c64xx_dma0_info[9] },
+	{ "samsung-i2s.0", "tx", &s3c64xx_dma0_info[10] },
+	{ "samsung-i2s.0", "rx", &s3c64xx_dma0_info[11] },
+	{ "s3c6410-spi.0", "tx", &s3c64xx_dma0_info[12] },
+	{ "s3c6410-spi.0", "rx", &s3c64xx_dma0_info[13] },
+	{ "samsung-i2s.2", "tx", &s3c64xx_dma0_info[14] },
+	{ "samsung-i2s.2", "rx", &s3c64xx_dma0_info[15] },
+};
+
 struct pl08x_platform_data s3c64xx_dma0_plat_data = {
 	.memcpy_channel = {
 		.bus_id = "memcpy",
@@ -134,6 +153,8 @@ struct pl08x_platform_data s3c64xx_dma0_plat_data = {
 	.put_xfer_signal = pl08x_put_xfer_signal,
 	.slave_channels = s3c64xx_dma0_info,
 	.num_slave_channels = ARRAY_SIZE(s3c64xx_dma0_info),
+	.slave_map = s3c64xx_dma0_slave_map,
+	.slave_map_len = ARRAY_SIZE(s3c64xx_dma0_slave_map),
 };
 
 static AMBA_AHB_DEVICE(s3c64xx_dma0, "dma-pl080s.0", 0,
@@ -207,6 +228,15 @@ static struct pl08x_channel_data s3c64xx_dma1_info[] = {
 	},
 };
 
+static const struct dma_slave_map s3c64xx_dma1_slave_map[] = {
+	{ "samsung-pcm.1", "tx", &s3c64xx_dma1_info[0] },
+	{ "samsung-pcm.1", "rx", &s3c64xx_dma1_info[1] },
+	{ "samsung-i2s.1", "tx", &s3c64xx_dma1_info[2] },
+	{ "samsung-i2s.1", "rx", &s3c64xx_dma1_info[3] },
+	{ "s3c6410-spi.1", "tx", &s3c64xx_dma1_info[4] },
+	{ "s3c6410-spi.1", "rx", &s3c64xx_dma1_info[5] },
+};
+
 struct pl08x_platform_data s3c64xx_dma1_plat_data = {
 	.memcpy_channel = {
 		.bus_id = "memcpy",
@@ -224,6 +254,8 @@ struct pl08x_platform_data s3c64xx_dma1_plat_data = {
 	.put_xfer_signal = pl08x_put_xfer_signal,
 	.slave_channels = s3c64xx_dma1_info,
 	.num_slave_channels = ARRAY_SIZE(s3c64xx_dma1_info),
+	.slave_map = s3c64xx_dma1_slave_map,
+	.slave_map_len = ARRAY_SIZE(s3c64xx_dma1_slave_map),
 };
 
 static AMBA_AHB_DEVICE(s3c64xx_dma1, "dma-pl080s.1", 0,

arch/arm/plat-samsung/devs.c

@@ -1124,15 +1124,6 @@ void __init s3c64xx_spi0_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
 	pd.num_cs = num_cs;
 	pd.src_clk_nr = src_clk_nr;
 	pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi0_cfg_gpio;
-	pd.dma_tx = (void *)DMACH_SPI0_TX;
-	pd.dma_rx = (void *)DMACH_SPI0_RX;
-#if defined(CONFIG_PL330_DMA)
-	pd.filter = pl330_filter;
-#elif defined(CONFIG_S3C64XX_PL080)
-	pd.filter = pl08x_filter_id;
-#elif defined(CONFIG_S3C24XX_DMAC)
-	pd.filter = s3c24xx_dma_filter;
-#endif
 
 	s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi0);
 }
@@ -1169,14 +1160,6 @@ void __init s3c64xx_spi1_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
 	pd.num_cs = num_cs;
 	pd.src_clk_nr = src_clk_nr;
 	pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi1_cfg_gpio;
-	pd.dma_tx = (void *)DMACH_SPI1_TX;
-	pd.dma_rx = (void *)DMACH_SPI1_RX;
-#if defined(CONFIG_PL330_DMA)
-	pd.filter = pl330_filter;
-#elif defined(CONFIG_S3C64XX_PL080)
-	pd.filter = pl08x_filter_id;
-#endif
-
 
 	s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi1);
 }
@@ -1213,13 +1196,6 @@ void __init s3c64xx_spi2_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
 	pd.num_cs = num_cs;
 	pd.src_clk_nr = src_clk_nr;
 	pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi2_cfg_gpio;
-	pd.dma_tx = (void *)DMACH_SPI2_TX;
-	pd.dma_rx = (void *)DMACH_SPI2_RX;
-#if defined(CONFIG_PL330_DMA)
-	pd.filter = pl330_filter;
-#elif defined(CONFIG_S3C64XX_PL080)
-	pd.filter = pl08x_filter_id;
-#endif
 
 	s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi2);
 }

drivers/dma/amba-pl08x.c

@@ -1793,6 +1793,13 @@ bool pl08x_filter_id(struct dma_chan *chan, void *chan_id)
 }
 EXPORT_SYMBOL_GPL(pl08x_filter_id);
 
+static bool pl08x_filter_fn(struct dma_chan *chan, void *chan_id)
+{
+	struct pl08x_dma_chan *plchan = to_pl08x_chan(chan);
+
+	return plchan->cd == chan_id;
+}
+
 /*
  * Just check that the device is there and active
  * TODO: turn this bit on/off depending on the number of physical channels
@@ -2307,6 +2314,10 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id)
 			ret = -EINVAL;
 			goto out_no_platdata;
 		}
+	} else {
+		pl08x->slave.filter.map = pl08x->pd->slave_map;
+		pl08x->slave.filter.mapcnt = pl08x->pd->slave_map_len;
+		pl08x->slave.filter.fn = pl08x_filter_fn;
 	}
 
 	/* By default, AHB1 only.  If dualmaster, from platform */

drivers/spi/spi-s3c64xx.c

@@ -341,27 +341,20 @@ static void s3c64xx_spi_set_cs(struct spi_device *spi, bool enable)
 static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
 {
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(spi);
-	dma_filter_fn filter = sdd->cntrlr_info->filter;
 	struct device *dev = &sdd->pdev->dev;
-	dma_cap_mask_t mask;
 
 	if (is_polling(sdd))
 		return 0;
 
-	dma_cap_zero(mask);
-	dma_cap_set(DMA_SLAVE, mask);
-
 	/* Acquire DMA channels */
-	sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter,
-			   sdd->cntrlr_info->dma_rx, dev, "rx");
+	sdd->rx_dma.ch = dma_request_slave_channel(dev, "rx");
 	if (!sdd->rx_dma.ch) {
 		dev_err(dev, "Failed to get RX DMA channel\n");
 		return -EBUSY;
 	}
 	spi->dma_rx = sdd->rx_dma.ch;
 
-	sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter,
-			   sdd->cntrlr_info->dma_tx, dev, "tx");
+	sdd->tx_dma.ch = dma_request_slave_channel(dev, "tx");
 	if (!sdd->tx_dma.ch) {
 		dev_err(dev, "Failed to get TX DMA channel\n");
 		dma_release_channel(sdd->rx_dma.ch);
@@ -1091,11 +1084,6 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 
 	sdd->cur_bpw = 8;
 
-	if (!sdd->pdev->dev.of_node && (!sci->dma_tx || !sci->dma_rx)) {
-		dev_warn(&pdev->dev, "Unable to get SPI tx/rx DMA data. Switching to poll mode\n");
-		sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL;
-	}
-
 	sdd->tx_dma.direction = DMA_MEM_TO_DEV;
 	sdd->rx_dma.direction = DMA_DEV_TO_MEM;
 
@@ -1205,9 +1193,8 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 
 	dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d with %d Slaves attached\n",
 					sdd->port_id, master->num_chipselect);
-	dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tFIFO %dbytes\tDMA=[Rx-%p, Tx-%p]\n",
-					mem_res, (FIFO_LVL_MASK(sdd) >> 1) + 1,
-					sci->dma_rx, sci->dma_tx);
+	dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tFIFO %dbytes\n",
+					mem_res, (FIFO_LVL_MASK(sdd) >> 1) + 1);
 
 	pm_runtime_mark_last_busy(&pdev->dev);
 	pm_runtime_put_autosuspend(&pdev->dev);

include/linux/amba/pl08x.h

@@ -84,6 +84,8 @@ struct pl08x_channel_data {
  * running any DMA transfer and multiplexing can be recycled
  * @lli_buses: buses which LLIs can be fetched from: PL08X_AHB1 | PL08X_AHB2
  * @mem_buses: buses which memory can be accessed from: PL08X_AHB1 | PL08X_AHB2
+ * @slave_map: DMA slave matching table
+ * @slave_map_len: number of elements in @slave_map
  */
 struct pl08x_platform_data {
 	struct pl08x_channel_data *slave_channels;
@@ -93,6 +95,8 @@ struct pl08x_platform_data {
 	void (*put_xfer_signal)(const struct pl08x_channel_data *, int);
 	u8 lli_buses;
 	u8 mem_buses;
+	const struct dma_slave_map *slave_map;
+	int slave_map_len;
 };
 
 #ifdef CONFIG_AMBA_PL08X

include/linux/platform_data/spi-s3c64xx.h

@@ -40,9 +40,6 @@ struct s3c64xx_spi_info {
 	int num_cs;
 	bool no_cs;
 	int (*cfg_gpio)(void);
-	dma_filter_fn filter;
-	void *dma_tx;
-	void *dma_rx;
 };
 
 /**