Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 1 | /* |
| 2 | * omap-mcpdm.c -- OMAP ALSA SoC DAI driver using McPDM port |
| 3 | * |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 4 | * Copyright (C) 2009 - 2011 Texas Instruments |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 5 | * |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 6 | * Author: Misael Lopez Cruz <misael.lopez@ti.com> |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 7 | * Contact: Jorge Eduardo Candelaria <x0107209@ti.com> |
| 8 | * Margarita Olaya <magi.olaya@ti.com> |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 9 | * Peter Ujfalusi <peter.ujfalusi@ti.com> |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 10 | * |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License |
| 13 | * version 2 as published by the Free Software Foundation. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, but |
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 23 | * 02110-1301 USA |
| 24 | * |
| 25 | */ |
| 26 | |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/module.h> |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 29 | #include <linux/platform_device.h> |
| 30 | #include <linux/interrupt.h> |
| 31 | #include <linux/err.h> |
| 32 | #include <linux/io.h> |
| 33 | #include <linux/irq.h> |
| 34 | #include <linux/slab.h> |
| 35 | #include <linux/pm_runtime.h> |
Peter Ujfalusi | 7cb8a1b | 2011-11-15 11:32:14 +0200 | [diff] [blame] | 36 | #include <linux/of_device.h> |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 37 | |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 38 | #include <sound/core.h> |
| 39 | #include <sound/pcm.h> |
| 40 | #include <sound/pcm_params.h> |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 41 | #include <sound/soc.h> |
Lars-Peter Clausen | 09ae3aa | 2013-04-03 11:06:05 +0200 | [diff] [blame] | 42 | #include <sound/dmaengine_pcm.h> |
Jyri Sarha | 87c1936 | 2014-05-26 11:51:14 +0300 | [diff] [blame] | 43 | #include <sound/omap-pcm.h> |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 44 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 45 | #include "omap-mcpdm.h" |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 46 | |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 47 | struct mcpdm_link_config { |
| 48 | u32 link_mask; /* channel mask for the direction */ |
| 49 | u32 threshold; /* FIFO threshold */ |
| 50 | }; |
Tony Lindgren | dbc0416 | 2012-08-31 10:59:07 -0700 | [diff] [blame] | 51 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 52 | struct omap_mcpdm { |
| 53 | struct device *dev; |
| 54 | unsigned long phys_base; |
| 55 | void __iomem *io_base; |
| 56 | int irq; |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 57 | struct pm_qos_request pm_qos_req; |
| 58 | int latency[2]; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 59 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 60 | struct mutex mutex; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 61 | |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 62 | /* Playback/Capture configuration */ |
| 63 | struct mcpdm_link_config config[2]; |
Peter Ujfalusi | 89b0d55 | 2011-09-26 16:05:58 +0300 | [diff] [blame] | 64 | |
| 65 | /* McPDM dn offsets for rx1, and 2 channels */ |
| 66 | u32 dn_rx_offset; |
Peter Ujfalusi | 81054b2 | 2013-03-20 10:47:13 +0100 | [diff] [blame] | 67 | |
| 68 | /* McPDM needs to be restarted due to runtime reconfiguration */ |
| 69 | bool restart; |
Lars-Peter Clausen | 09ae3aa | 2013-04-03 11:06:05 +0200 | [diff] [blame] | 70 | |
Peter Ujfalusi | 4a5c837 | 2016-05-18 16:46:35 +0300 | [diff] [blame] | 71 | /* pm state for suspend/resume handling */ |
| 72 | int pm_active_count; |
| 73 | |
Lars-Peter Clausen | 09ae3aa | 2013-04-03 11:06:05 +0200 | [diff] [blame] | 74 | struct snd_dmaengine_dai_dma_data dma_data[2]; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 75 | }; |
| 76 | |
| 77 | /* |
| 78 | * Stream DMA parameters |
| 79 | */ |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 80 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 81 | static inline void omap_mcpdm_write(struct omap_mcpdm *mcpdm, u16 reg, u32 val) |
| 82 | { |
Victor Kamensky | 1b488a4 | 2013-11-16 02:01:19 +0200 | [diff] [blame] | 83 | writel_relaxed(val, mcpdm->io_base + reg); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 84 | } |
| 85 | |
| 86 | static inline int omap_mcpdm_read(struct omap_mcpdm *mcpdm, u16 reg) |
| 87 | { |
Victor Kamensky | 1b488a4 | 2013-11-16 02:01:19 +0200 | [diff] [blame] | 88 | return readl_relaxed(mcpdm->io_base + reg); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | #ifdef DEBUG |
| 92 | static void omap_mcpdm_reg_dump(struct omap_mcpdm *mcpdm) |
| 93 | { |
| 94 | dev_dbg(mcpdm->dev, "***********************\n"); |
| 95 | dev_dbg(mcpdm->dev, "IRQSTATUS_RAW: 0x%04x\n", |
| 96 | omap_mcpdm_read(mcpdm, MCPDM_REG_IRQSTATUS_RAW)); |
| 97 | dev_dbg(mcpdm->dev, "IRQSTATUS: 0x%04x\n", |
| 98 | omap_mcpdm_read(mcpdm, MCPDM_REG_IRQSTATUS)); |
| 99 | dev_dbg(mcpdm->dev, "IRQENABLE_SET: 0x%04x\n", |
| 100 | omap_mcpdm_read(mcpdm, MCPDM_REG_IRQENABLE_SET)); |
| 101 | dev_dbg(mcpdm->dev, "IRQENABLE_CLR: 0x%04x\n", |
| 102 | omap_mcpdm_read(mcpdm, MCPDM_REG_IRQENABLE_CLR)); |
| 103 | dev_dbg(mcpdm->dev, "IRQWAKE_EN: 0x%04x\n", |
| 104 | omap_mcpdm_read(mcpdm, MCPDM_REG_IRQWAKE_EN)); |
| 105 | dev_dbg(mcpdm->dev, "DMAENABLE_SET: 0x%04x\n", |
| 106 | omap_mcpdm_read(mcpdm, MCPDM_REG_DMAENABLE_SET)); |
| 107 | dev_dbg(mcpdm->dev, "DMAENABLE_CLR: 0x%04x\n", |
| 108 | omap_mcpdm_read(mcpdm, MCPDM_REG_DMAENABLE_CLR)); |
| 109 | dev_dbg(mcpdm->dev, "DMAWAKEEN: 0x%04x\n", |
| 110 | omap_mcpdm_read(mcpdm, MCPDM_REG_DMAWAKEEN)); |
| 111 | dev_dbg(mcpdm->dev, "CTRL: 0x%04x\n", |
| 112 | omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL)); |
| 113 | dev_dbg(mcpdm->dev, "DN_DATA: 0x%04x\n", |
| 114 | omap_mcpdm_read(mcpdm, MCPDM_REG_DN_DATA)); |
| 115 | dev_dbg(mcpdm->dev, "UP_DATA: 0x%04x\n", |
| 116 | omap_mcpdm_read(mcpdm, MCPDM_REG_UP_DATA)); |
| 117 | dev_dbg(mcpdm->dev, "FIFO_CTRL_DN: 0x%04x\n", |
| 118 | omap_mcpdm_read(mcpdm, MCPDM_REG_FIFO_CTRL_DN)); |
| 119 | dev_dbg(mcpdm->dev, "FIFO_CTRL_UP: 0x%04x\n", |
| 120 | omap_mcpdm_read(mcpdm, MCPDM_REG_FIFO_CTRL_UP)); |
| 121 | dev_dbg(mcpdm->dev, "***********************\n"); |
| 122 | } |
| 123 | #else |
| 124 | static void omap_mcpdm_reg_dump(struct omap_mcpdm *mcpdm) {} |
| 125 | #endif |
| 126 | |
| 127 | /* |
| 128 | * Enables the transfer through the PDM interface to/from the Phoenix |
| 129 | * codec by enabling the corresponding UP or DN channels. |
| 130 | */ |
| 131 | static void omap_mcpdm_start(struct omap_mcpdm *mcpdm) |
| 132 | { |
| 133 | u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL); |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 134 | u32 link_mask = mcpdm->config[0].link_mask | mcpdm->config[1].link_mask; |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 135 | |
| 136 | ctrl |= (MCPDM_SW_DN_RST | MCPDM_SW_UP_RST); |
| 137 | omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); |
| 138 | |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 139 | ctrl |= link_mask; |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 140 | omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); |
| 141 | |
| 142 | ctrl &= ~(MCPDM_SW_DN_RST | MCPDM_SW_UP_RST); |
| 143 | omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); |
| 144 | } |
| 145 | |
| 146 | /* |
| 147 | * Disables the transfer through the PDM interface to/from the Phoenix |
| 148 | * codec by disabling the corresponding UP or DN channels. |
| 149 | */ |
| 150 | static void omap_mcpdm_stop(struct omap_mcpdm *mcpdm) |
| 151 | { |
| 152 | u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL); |
Peter Ujfalusi | 81054b2 | 2013-03-20 10:47:13 +0100 | [diff] [blame] | 153 | u32 link_mask = MCPDM_PDM_DN_MASK | MCPDM_PDM_UP_MASK; |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 154 | |
| 155 | ctrl |= (MCPDM_SW_DN_RST | MCPDM_SW_UP_RST); |
| 156 | omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); |
| 157 | |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 158 | ctrl &= ~(link_mask); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 159 | omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); |
| 160 | |
| 161 | ctrl &= ~(MCPDM_SW_DN_RST | MCPDM_SW_UP_RST); |
| 162 | omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); |
| 163 | |
| 164 | } |
| 165 | |
| 166 | /* |
| 167 | * Is the physical McPDM interface active. |
| 168 | */ |
| 169 | static inline int omap_mcpdm_active(struct omap_mcpdm *mcpdm) |
| 170 | { |
| 171 | return omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL) & |
| 172 | (MCPDM_PDM_DN_MASK | MCPDM_PDM_UP_MASK); |
| 173 | } |
| 174 | |
| 175 | /* |
| 176 | * Configures McPDM uplink, and downlink for audio. |
| 177 | * This function should be called before omap_mcpdm_start. |
| 178 | */ |
| 179 | static void omap_mcpdm_open_streams(struct omap_mcpdm *mcpdm) |
| 180 | { |
Peter Ujfalusi | 0efecc0 | 2016-05-18 16:46:34 +0300 | [diff] [blame] | 181 | u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL); |
| 182 | |
| 183 | omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl | MCPDM_WD_EN); |
| 184 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 185 | omap_mcpdm_write(mcpdm, MCPDM_REG_IRQENABLE_SET, |
| 186 | MCPDM_DN_IRQ_EMPTY | MCPDM_DN_IRQ_FULL | |
| 187 | MCPDM_UP_IRQ_EMPTY | MCPDM_UP_IRQ_FULL); |
| 188 | |
Peter Ujfalusi | 89b0d55 | 2011-09-26 16:05:58 +0300 | [diff] [blame] | 189 | /* Enable DN RX1/2 offset cancellation feature, if configured */ |
| 190 | if (mcpdm->dn_rx_offset) { |
| 191 | u32 dn_offset = mcpdm->dn_rx_offset; |
| 192 | |
| 193 | omap_mcpdm_write(mcpdm, MCPDM_REG_DN_OFFSET, dn_offset); |
| 194 | dn_offset |= (MCPDM_DN_OFST_RX1_EN | MCPDM_DN_OFST_RX2_EN); |
| 195 | omap_mcpdm_write(mcpdm, MCPDM_REG_DN_OFFSET, dn_offset); |
| 196 | } |
| 197 | |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 198 | omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_DN, |
| 199 | mcpdm->config[SNDRV_PCM_STREAM_PLAYBACK].threshold); |
| 200 | omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_UP, |
| 201 | mcpdm->config[SNDRV_PCM_STREAM_CAPTURE].threshold); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 202 | |
| 203 | omap_mcpdm_write(mcpdm, MCPDM_REG_DMAENABLE_SET, |
| 204 | MCPDM_DMA_DN_ENABLE | MCPDM_DMA_UP_ENABLE); |
| 205 | } |
| 206 | |
| 207 | /* |
| 208 | * Cleans McPDM uplink, and downlink configuration. |
| 209 | * This function should be called when the stream is closed. |
| 210 | */ |
| 211 | static void omap_mcpdm_close_streams(struct omap_mcpdm *mcpdm) |
| 212 | { |
| 213 | /* Disable irq request generation for downlink */ |
| 214 | omap_mcpdm_write(mcpdm, MCPDM_REG_IRQENABLE_CLR, |
| 215 | MCPDM_DN_IRQ_EMPTY | MCPDM_DN_IRQ_FULL); |
| 216 | |
| 217 | /* Disable DMA request generation for downlink */ |
| 218 | omap_mcpdm_write(mcpdm, MCPDM_REG_DMAENABLE_CLR, MCPDM_DMA_DN_ENABLE); |
| 219 | |
| 220 | /* Disable irq request generation for uplink */ |
| 221 | omap_mcpdm_write(mcpdm, MCPDM_REG_IRQENABLE_CLR, |
| 222 | MCPDM_UP_IRQ_EMPTY | MCPDM_UP_IRQ_FULL); |
| 223 | |
| 224 | /* Disable DMA request generation for uplink */ |
| 225 | omap_mcpdm_write(mcpdm, MCPDM_REG_DMAENABLE_CLR, MCPDM_DMA_UP_ENABLE); |
Peter Ujfalusi | 89b0d55 | 2011-09-26 16:05:58 +0300 | [diff] [blame] | 226 | |
| 227 | /* Disable RX1/2 offset cancellation */ |
| 228 | if (mcpdm->dn_rx_offset) |
| 229 | omap_mcpdm_write(mcpdm, MCPDM_REG_DN_OFFSET, 0); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | static irqreturn_t omap_mcpdm_irq_handler(int irq, void *dev_id) |
| 233 | { |
| 234 | struct omap_mcpdm *mcpdm = dev_id; |
| 235 | int irq_status; |
| 236 | |
| 237 | irq_status = omap_mcpdm_read(mcpdm, MCPDM_REG_IRQSTATUS); |
| 238 | |
| 239 | /* Acknowledge irq event */ |
| 240 | omap_mcpdm_write(mcpdm, MCPDM_REG_IRQSTATUS, irq_status); |
| 241 | |
| 242 | if (irq_status & MCPDM_DN_IRQ_FULL) |
| 243 | dev_dbg(mcpdm->dev, "DN (playback) FIFO Full\n"); |
| 244 | |
| 245 | if (irq_status & MCPDM_DN_IRQ_EMPTY) |
| 246 | dev_dbg(mcpdm->dev, "DN (playback) FIFO Empty\n"); |
| 247 | |
| 248 | if (irq_status & MCPDM_DN_IRQ) |
| 249 | dev_dbg(mcpdm->dev, "DN (playback) write request\n"); |
| 250 | |
| 251 | if (irq_status & MCPDM_UP_IRQ_FULL) |
| 252 | dev_dbg(mcpdm->dev, "UP (capture) FIFO Full\n"); |
| 253 | |
| 254 | if (irq_status & MCPDM_UP_IRQ_EMPTY) |
| 255 | dev_dbg(mcpdm->dev, "UP (capture) FIFO Empty\n"); |
| 256 | |
| 257 | if (irq_status & MCPDM_UP_IRQ) |
| 258 | dev_dbg(mcpdm->dev, "UP (capture) write request\n"); |
| 259 | |
| 260 | return IRQ_HANDLED; |
| 261 | } |
| 262 | |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 263 | static int omap_mcpdm_dai_startup(struct snd_pcm_substream *substream, |
| 264 | struct snd_soc_dai *dai) |
| 265 | { |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 266 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 267 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 268 | mutex_lock(&mcpdm->mutex); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 269 | |
Peter Ujfalusi | 0efecc0 | 2016-05-18 16:46:34 +0300 | [diff] [blame] | 270 | if (!dai->active) |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 271 | omap_mcpdm_open_streams(mcpdm); |
Peter Ujfalusi | 0efecc0 | 2016-05-18 16:46:34 +0300 | [diff] [blame] | 272 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 273 | mutex_unlock(&mcpdm->mutex); |
| 274 | |
| 275 | return 0; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 279 | struct snd_soc_dai *dai) |
| 280 | { |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 281 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 282 | int tx = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); |
| 283 | int stream1 = tx ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE; |
| 284 | int stream2 = tx ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 285 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 286 | mutex_lock(&mcpdm->mutex); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 287 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 288 | if (!dai->active) { |
| 289 | if (omap_mcpdm_active(mcpdm)) { |
| 290 | omap_mcpdm_stop(mcpdm); |
| 291 | omap_mcpdm_close_streams(mcpdm); |
Peter Ujfalusi | 81054b2 | 2013-03-20 10:47:13 +0100 | [diff] [blame] | 292 | mcpdm->config[0].link_mask = 0; |
| 293 | mcpdm->config[1].link_mask = 0; |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 294 | } |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 295 | } |
| 296 | |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 297 | if (mcpdm->latency[stream2]) |
| 298 | pm_qos_update_request(&mcpdm->pm_qos_req, |
| 299 | mcpdm->latency[stream2]); |
| 300 | else if (mcpdm->latency[stream1]) |
| 301 | pm_qos_remove_request(&mcpdm->pm_qos_req); |
| 302 | |
| 303 | mcpdm->latency[stream1] = 0; |
| 304 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 305 | mutex_unlock(&mcpdm->mutex); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream, |
| 309 | struct snd_pcm_hw_params *params, |
| 310 | struct snd_soc_dai *dai) |
| 311 | { |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 312 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 313 | int stream = substream->stream; |
Lars-Peter Clausen | 09ae3aa | 2013-04-03 11:06:05 +0200 | [diff] [blame] | 314 | struct snd_dmaengine_dai_dma_data *dma_data; |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 315 | u32 threshold; |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 316 | int channels, latency; |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 317 | int link_mask = 0; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 318 | |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 319 | channels = params_channels(params); |
| 320 | switch (channels) { |
Peter Ujfalusi | 3b5b516f | 2011-09-23 09:49:43 +0300 | [diff] [blame] | 321 | case 5: |
| 322 | if (stream == SNDRV_PCM_STREAM_CAPTURE) |
| 323 | /* up to 3 channels for capture */ |
| 324 | return -EINVAL; |
| 325 | link_mask |= 1 << 4; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 326 | case 4: |
| 327 | if (stream == SNDRV_PCM_STREAM_CAPTURE) |
Peter Ujfalusi | 3b5b516f | 2011-09-23 09:49:43 +0300 | [diff] [blame] | 328 | /* up to 3 channels for capture */ |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 329 | return -EINVAL; |
| 330 | link_mask |= 1 << 3; |
| 331 | case 3: |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 332 | link_mask |= 1 << 2; |
| 333 | case 2: |
| 334 | link_mask |= 1 << 1; |
| 335 | case 1: |
| 336 | link_mask |= 1 << 0; |
| 337 | break; |
| 338 | default: |
| 339 | /* unsupported number of channels */ |
| 340 | return -EINVAL; |
| 341 | } |
| 342 | |
Peter Ujfalusi | bcd6da7 | 2012-09-14 15:05:57 +0300 | [diff] [blame] | 343 | dma_data = snd_soc_dai_get_dma_data(dai, substream); |
Peter Ujfalusi | b199adf | 2011-08-02 13:35:30 +0300 | [diff] [blame] | 344 | |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 345 | threshold = mcpdm->config[stream].threshold; |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 346 | /* Configure McPDM channels, and DMA packet size */ |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 347 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 348 | link_mask <<= 3; |
Peter Ujfalusi | 81054b2 | 2013-03-20 10:47:13 +0100 | [diff] [blame] | 349 | |
| 350 | /* If capture is not running assume a stereo stream to come */ |
| 351 | if (!mcpdm->config[!stream].link_mask) |
| 352 | mcpdm->config[!stream].link_mask = 0x3; |
| 353 | |
Lars-Peter Clausen | 09ae3aa | 2013-04-03 11:06:05 +0200 | [diff] [blame] | 354 | dma_data->maxburst = |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 355 | (MCPDM_DN_THRES_MAX - threshold) * channels; |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 356 | latency = threshold; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 357 | } else { |
Peter Ujfalusi | 81054b2 | 2013-03-20 10:47:13 +0100 | [diff] [blame] | 358 | /* If playback is not running assume a stereo stream to come */ |
| 359 | if (!mcpdm->config[!stream].link_mask) |
| 360 | mcpdm->config[!stream].link_mask = (0x3 << 3); |
| 361 | |
Lars-Peter Clausen | 09ae3aa | 2013-04-03 11:06:05 +0200 | [diff] [blame] | 362 | dma_data->maxburst = threshold * channels; |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 363 | latency = (MCPDM_DN_THRES_MAX - threshold); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 364 | } |
| 365 | |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 366 | /* |
| 367 | * The DMA must act to a DMA request within latency time (usec) to avoid |
| 368 | * under/overflow |
| 369 | */ |
| 370 | mcpdm->latency[stream] = latency * USEC_PER_SEC / params_rate(params); |
| 371 | |
| 372 | if (!mcpdm->latency[stream]) |
| 373 | mcpdm->latency[stream] = 10; |
| 374 | |
Peter Ujfalusi | 81054b2 | 2013-03-20 10:47:13 +0100 | [diff] [blame] | 375 | /* Check if we need to restart McPDM with this stream */ |
| 376 | if (mcpdm->config[stream].link_mask && |
| 377 | mcpdm->config[stream].link_mask != link_mask) |
| 378 | mcpdm->restart = true; |
| 379 | |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 380 | mcpdm->config[stream].link_mask = link_mask; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 381 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 382 | return 0; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 383 | } |
| 384 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 385 | static int omap_mcpdm_prepare(struct snd_pcm_substream *substream, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 386 | struct snd_soc_dai *dai) |
| 387 | { |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 388 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 389 | struct pm_qos_request *pm_qos_req = &mcpdm->pm_qos_req; |
| 390 | int tx = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); |
| 391 | int stream1 = tx ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE; |
| 392 | int stream2 = tx ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; |
| 393 | int latency = mcpdm->latency[stream2]; |
| 394 | |
| 395 | /* Prevent omap hardware from hitting off between FIFO fills */ |
| 396 | if (!latency || mcpdm->latency[stream1] < latency) |
| 397 | latency = mcpdm->latency[stream1]; |
| 398 | |
| 399 | if (pm_qos_request_active(pm_qos_req)) |
| 400 | pm_qos_update_request(pm_qos_req, latency); |
| 401 | else if (latency) |
| 402 | pm_qos_add_request(pm_qos_req, PM_QOS_CPU_DMA_LATENCY, latency); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 403 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 404 | if (!omap_mcpdm_active(mcpdm)) { |
| 405 | omap_mcpdm_start(mcpdm); |
| 406 | omap_mcpdm_reg_dump(mcpdm); |
Peter Ujfalusi | 81054b2 | 2013-03-20 10:47:13 +0100 | [diff] [blame] | 407 | } else if (mcpdm->restart) { |
| 408 | omap_mcpdm_stop(mcpdm); |
| 409 | omap_mcpdm_start(mcpdm); |
| 410 | mcpdm->restart = false; |
| 411 | omap_mcpdm_reg_dump(mcpdm); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 412 | } |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 413 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 414 | return 0; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 415 | } |
| 416 | |
Lars-Peter Clausen | 85e7652 | 2011-11-23 11:40:40 +0100 | [diff] [blame] | 417 | static const struct snd_soc_dai_ops omap_mcpdm_dai_ops = { |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 418 | .startup = omap_mcpdm_dai_startup, |
| 419 | .shutdown = omap_mcpdm_dai_shutdown, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 420 | .hw_params = omap_mcpdm_dai_hw_params, |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 421 | .prepare = omap_mcpdm_prepare, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 422 | }; |
| 423 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 424 | static int omap_mcpdm_probe(struct snd_soc_dai *dai) |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 425 | { |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 426 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); |
| 427 | int ret; |
| 428 | |
| 429 | pm_runtime_enable(mcpdm->dev); |
| 430 | |
| 431 | /* Disable lines while request is ongoing */ |
| 432 | pm_runtime_get_sync(mcpdm->dev); |
| 433 | omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, 0x00); |
| 434 | |
Peter Ujfalusi | a871967 | 2016-08-23 10:27:19 +0300 | [diff] [blame] | 435 | ret = request_irq(mcpdm->irq, omap_mcpdm_irq_handler, 0, "McPDM", |
| 436 | (void *)mcpdm); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 437 | |
| 438 | pm_runtime_put_sync(mcpdm->dev); |
| 439 | |
| 440 | if (ret) { |
| 441 | dev_err(mcpdm->dev, "Request for IRQ failed\n"); |
| 442 | pm_runtime_disable(mcpdm->dev); |
| 443 | } |
| 444 | |
| 445 | /* Configure McPDM threshold values */ |
Peter Ujfalusi | 6237663 | 2013-03-20 10:47:12 +0100 | [diff] [blame] | 446 | mcpdm->config[SNDRV_PCM_STREAM_PLAYBACK].threshold = 2; |
| 447 | mcpdm->config[SNDRV_PCM_STREAM_CAPTURE].threshold = |
| 448 | MCPDM_UP_THRES_MAX - 3; |
Peter Ujfalusi | f6563b3 | 2014-04-16 15:46:13 +0300 | [diff] [blame] | 449 | |
| 450 | snd_soc_dai_init_dma_data(dai, |
| 451 | &mcpdm->dma_data[SNDRV_PCM_STREAM_PLAYBACK], |
| 452 | &mcpdm->dma_data[SNDRV_PCM_STREAM_CAPTURE]); |
| 453 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 454 | return ret; |
| 455 | } |
| 456 | |
| 457 | static int omap_mcpdm_remove(struct snd_soc_dai *dai) |
| 458 | { |
| 459 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); |
| 460 | |
Peter Ujfalusi | a871967 | 2016-08-23 10:27:19 +0300 | [diff] [blame] | 461 | free_irq(mcpdm->irq, (void *)mcpdm); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 462 | pm_runtime_disable(mcpdm->dev); |
| 463 | |
Peter Ujfalusi | 0dbabe0 | 2018-11-14 13:06:22 +0200 | [diff] [blame] | 464 | if (pm_qos_request_active(&mcpdm->pm_qos_req)) |
| 465 | pm_qos_remove_request(&mcpdm->pm_qos_req); |
| 466 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 467 | return 0; |
| 468 | } |
| 469 | |
Peter Ujfalusi | 4a5c837 | 2016-05-18 16:46:35 +0300 | [diff] [blame] | 470 | #ifdef CONFIG_PM_SLEEP |
| 471 | static int omap_mcpdm_suspend(struct snd_soc_dai *dai) |
| 472 | { |
| 473 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); |
| 474 | |
| 475 | if (dai->active) { |
| 476 | omap_mcpdm_stop(mcpdm); |
| 477 | omap_mcpdm_close_streams(mcpdm); |
| 478 | } |
| 479 | |
| 480 | mcpdm->pm_active_count = 0; |
| 481 | while (pm_runtime_active(mcpdm->dev)) { |
| 482 | pm_runtime_put_sync(mcpdm->dev); |
| 483 | mcpdm->pm_active_count++; |
| 484 | } |
| 485 | |
| 486 | return 0; |
| 487 | } |
| 488 | |
| 489 | static int omap_mcpdm_resume(struct snd_soc_dai *dai) |
| 490 | { |
| 491 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); |
| 492 | |
| 493 | if (mcpdm->pm_active_count) { |
| 494 | while (mcpdm->pm_active_count--) |
| 495 | pm_runtime_get_sync(mcpdm->dev); |
| 496 | |
| 497 | if (dai->active) { |
| 498 | omap_mcpdm_open_streams(mcpdm); |
| 499 | omap_mcpdm_start(mcpdm); |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | |
| 504 | return 0; |
| 505 | } |
| 506 | #else |
| 507 | #define omap_mcpdm_suspend NULL |
| 508 | #define omap_mcpdm_resume NULL |
| 509 | #endif |
| 510 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 511 | #define OMAP_MCPDM_RATES (SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) |
| 512 | #define OMAP_MCPDM_FORMATS SNDRV_PCM_FMTBIT_S32_LE |
| 513 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 514 | static struct snd_soc_dai_driver omap_mcpdm_dai = { |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 515 | .probe = omap_mcpdm_probe, |
| 516 | .remove = omap_mcpdm_remove, |
Peter Ujfalusi | 4a5c837 | 2016-05-18 16:46:35 +0300 | [diff] [blame] | 517 | .suspend = omap_mcpdm_suspend, |
| 518 | .resume = omap_mcpdm_resume, |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 519 | .probe_order = SND_SOC_COMP_ORDER_LATE, |
| 520 | .remove_order = SND_SOC_COMP_ORDER_EARLY, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 521 | .playback = { |
| 522 | .channels_min = 1, |
Peter Ujfalusi | 3b5b516f | 2011-09-23 09:49:43 +0300 | [diff] [blame] | 523 | .channels_max = 5, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 524 | .rates = OMAP_MCPDM_RATES, |
| 525 | .formats = OMAP_MCPDM_FORMATS, |
Peter Ujfalusi | b4badd4 | 2012-01-18 12:18:24 +0100 | [diff] [blame] | 526 | .sig_bits = 24, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 527 | }, |
| 528 | .capture = { |
| 529 | .channels_min = 1, |
Peter Ujfalusi | 3b5b516f | 2011-09-23 09:49:43 +0300 | [diff] [blame] | 530 | .channels_max = 3, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 531 | .rates = OMAP_MCPDM_RATES, |
| 532 | .formats = OMAP_MCPDM_FORMATS, |
Peter Ujfalusi | b4badd4 | 2012-01-18 12:18:24 +0100 | [diff] [blame] | 533 | .sig_bits = 24, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 534 | }, |
| 535 | .ops = &omap_mcpdm_dai_ops, |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 536 | }; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 537 | |
Kuninori Morimoto | 58709a3 | 2013-03-21 03:33:37 -0700 | [diff] [blame] | 538 | static const struct snd_soc_component_driver omap_mcpdm_component = { |
| 539 | .name = "omap-mcpdm", |
| 540 | }; |
| 541 | |
Peter Ujfalusi | 89b0d55 | 2011-09-26 16:05:58 +0300 | [diff] [blame] | 542 | void omap_mcpdm_configure_dn_offsets(struct snd_soc_pcm_runtime *rtd, |
| 543 | u8 rx1, u8 rx2) |
| 544 | { |
| 545 | struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(rtd->cpu_dai); |
| 546 | |
| 547 | mcpdm->dn_rx_offset = MCPDM_DNOFST_RX1(rx1) | MCPDM_DNOFST_RX2(rx2); |
| 548 | } |
| 549 | EXPORT_SYMBOL_GPL(omap_mcpdm_configure_dn_offsets); |
| 550 | |
Bill Pemberton | 7ff6000 | 2012-12-07 09:26:29 -0500 | [diff] [blame] | 551 | static int asoc_mcpdm_probe(struct platform_device *pdev) |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 552 | { |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 553 | struct omap_mcpdm *mcpdm; |
| 554 | struct resource *res; |
Peter Ujfalusi | 335b065 | 2014-04-16 15:46:14 +0300 | [diff] [blame] | 555 | int ret; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 556 | |
Peter Ujfalusi | d77ae33 | 2012-07-23 12:39:51 +0300 | [diff] [blame] | 557 | mcpdm = devm_kzalloc(&pdev->dev, sizeof(struct omap_mcpdm), GFP_KERNEL); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 558 | if (!mcpdm) |
| 559 | return -ENOMEM; |
| 560 | |
| 561 | platform_set_drvdata(pdev, mcpdm); |
| 562 | |
| 563 | mutex_init(&mcpdm->mutex); |
| 564 | |
Peter Ujfalusi | 5a40c57 | 2012-09-14 15:05:54 +0300 | [diff] [blame] | 565 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dma"); |
| 566 | if (res == NULL) |
| 567 | return -ENOMEM; |
| 568 | |
Lars-Peter Clausen | 09ae3aa | 2013-04-03 11:06:05 +0200 | [diff] [blame] | 569 | mcpdm->dma_data[0].addr = res->start + MCPDM_REG_DN_DATA; |
| 570 | mcpdm->dma_data[1].addr = res->start + MCPDM_REG_UP_DATA; |
Peter Ujfalusi | 5a40c57 | 2012-09-14 15:05:54 +0300 | [diff] [blame] | 571 | |
Peter Ujfalusi | a8035f0 | 2013-07-11 14:35:44 +0200 | [diff] [blame] | 572 | mcpdm->dma_data[0].filter_data = "dn_link"; |
| 573 | mcpdm->dma_data[1].filter_data = "up_link"; |
Peter Ujfalusi | 5a40c57 | 2012-09-14 15:05:54 +0300 | [diff] [blame] | 574 | |
| 575 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu"); |
Silviu-Mihai Popescu | 77c641d | 2013-03-11 17:58:57 +0200 | [diff] [blame] | 576 | mcpdm->io_base = devm_ioremap_resource(&pdev->dev, res); |
| 577 | if (IS_ERR(mcpdm->io_base)) |
| 578 | return PTR_ERR(mcpdm->io_base); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 579 | |
| 580 | mcpdm->irq = platform_get_irq(pdev, 0); |
Peter Ujfalusi | d77ae33 | 2012-07-23 12:39:51 +0300 | [diff] [blame] | 581 | if (mcpdm->irq < 0) |
| 582 | return mcpdm->irq; |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 583 | |
| 584 | mcpdm->dev = &pdev->dev; |
| 585 | |
Peter Ujfalusi | 335b065 | 2014-04-16 15:46:14 +0300 | [diff] [blame] | 586 | ret = devm_snd_soc_register_component(&pdev->dev, |
Sachin Kamat | 6c3cc30 | 2013-09-17 10:28:02 +0530 | [diff] [blame] | 587 | &omap_mcpdm_component, |
| 588 | &omap_mcpdm_dai, 1); |
Peter Ujfalusi | 335b065 | 2014-04-16 15:46:14 +0300 | [diff] [blame] | 589 | if (ret) |
| 590 | return ret; |
| 591 | |
| 592 | return omap_pcm_platform_register(&pdev->dev); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 593 | } |
| 594 | |
Peter Ujfalusi | 7cb8a1b | 2011-11-15 11:32:14 +0200 | [diff] [blame] | 595 | static const struct of_device_id omap_mcpdm_of_match[] = { |
| 596 | { .compatible = "ti,omap4-mcpdm", }, |
| 597 | { } |
| 598 | }; |
| 599 | MODULE_DEVICE_TABLE(of, omap_mcpdm_of_match); |
| 600 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 601 | static struct platform_driver asoc_mcpdm_driver = { |
| 602 | .driver = { |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 603 | .name = "omap-mcpdm", |
Peter Ujfalusi | 7cb8a1b | 2011-11-15 11:32:14 +0200 | [diff] [blame] | 604 | .of_match_table = omap_mcpdm_of_match, |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 605 | }, |
| 606 | |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 607 | .probe = asoc_mcpdm_probe, |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 608 | }; |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 609 | |
Axel Lin | beda5bf5 | 2011-11-25 10:12:16 +0800 | [diff] [blame] | 610 | module_platform_driver(asoc_mcpdm_driver); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 611 | |
Peter Ujfalusi | d66a547 | 2012-07-06 12:19:10 +0200 | [diff] [blame] | 612 | MODULE_ALIAS("platform:omap-mcpdm"); |
Misael Lopez Cruz | f5f9d7b | 2011-07-05 19:50:45 +0300 | [diff] [blame] | 613 | MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); |
Misael Lopez Cruz | db72c2f | 2010-02-22 15:09:22 -0600 | [diff] [blame] | 614 | MODULE_DESCRIPTION("OMAP PDM SoC Interface"); |
| 615 | MODULE_LICENSE("GPL"); |