diff options
Diffstat (limited to 'sound/soc/ux500')
| -rw-r--r-- | sound/soc/ux500/Kconfig | 6 | ||||
| -rw-r--r-- | sound/soc/ux500/mop500.c | 7 | ||||
| -rw-r--r-- | sound/soc/ux500/mop500_ab8500.c | 64 | ||||
| -rw-r--r-- | sound/soc/ux500/ux500_msp_dai.c | 168 | ||||
| -rw-r--r-- | sound/soc/ux500/ux500_msp_dai.h | 9 | ||||
| -rw-r--r-- | sound/soc/ux500/ux500_msp_i2s.c | 144 | ||||
| -rw-r--r-- | sound/soc/ux500/ux500_msp_i2s.h | 77 | ||||
| -rw-r--r-- | sound/soc/ux500/ux500_pcm.c | 262 | ||||
| -rw-r--r-- | sound/soc/ux500/ux500_pcm.h | 14 |
9 files changed, 247 insertions, 504 deletions
diff --git a/sound/soc/ux500/Kconfig b/sound/soc/ux500/Kconfig index 069330d82be..aa5011894c7 100644 --- a/sound/soc/ux500/Kconfig +++ b/sound/soc/ux500/Kconfig @@ -16,12 +16,12 @@ config SND_SOC_UX500_PLAT_MSP_I2S config SND_SOC_UX500_PLAT_DMA tristate "Platform - DB8500 (DMA)" depends on SND_SOC_UX500 - select SND_SOC_DMAENGINE_PCM + select SND_SOC_GENERIC_DMAENGINE_PCM help Say Y if you want to enable the Ux500 platform-driver. -+config SND_SOC_UX500_MACH_MOP500 -+ tristate "Machine - MOP500 (Ux500 + AB8500)" +config SND_SOC_UX500_MACH_MOP500 + tristate "Machine - MOP500 (Ux500 + AB8500)" depends on AB8500_CORE && AB8500_GPADC && SND_SOC_UX500 select SND_SOC_AB8500_CODEC select SND_SOC_UX500_PLAT_MSP_I2S diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c index ae699073878..b3b66aa98dc 100644 --- a/sound/soc/ux500/mop500.c +++ b/sound/soc/ux500/mop500.c @@ -24,10 +24,10 @@ #include "ux500_pcm.h" #include "ux500_msp_dai.h" -#include <mop500_ab8500.h> +#include "mop500_ab8500.h" /* Define the whole MOP500 soundcard, linking platform to the codec-drivers */ -struct snd_soc_dai_link mop500_dai_links[] = { +static struct snd_soc_dai_link mop500_dai_links[] = { { .name = "ab8500_0", .stream_name = "ab8500_0", @@ -52,6 +52,7 @@ struct snd_soc_dai_link mop500_dai_links[] = { static struct snd_soc_card mop500_card = { .name = "MOP500-card", + .owner = THIS_MODULE, .probe = NULL, .dai_link = mop500_dai_links, .num_links = ARRAY_SIZE(mop500_dai_links), @@ -90,6 +91,8 @@ static int mop500_of_probe(struct platform_device *pdev, for (i = 0; i < 2; i++) { mop500_dai_links[i].cpu_of_node = msp_np[i]; mop500_dai_links[i].cpu_dai_name = NULL; + mop500_dai_links[i].platform_of_node = msp_np[i]; + mop500_dai_links[i].platform_name = NULL; mop500_dai_links[i].codec_of_node = codec_np; mop500_dai_links[i].codec_name = NULL; } diff --git a/sound/soc/ux500/mop500_ab8500.c b/sound/soc/ux500/mop500_ab8500.c index 78cce236693..be4f1ac7cd5 100644 --- a/sound/soc/ux500/mop500_ab8500.c +++ b/sound/soc/ux500/mop500_ab8500.c @@ -16,8 +16,7 @@ #include <linux/device.h> #include <linux/io.h> #include <linux/clk.h> - -#include <mach/hardware.h> +#include <linux/mutex.h> #include <sound/soc.h> #include <sound/soc-dapm.h> @@ -26,6 +25,7 @@ #include "ux500_pcm.h" #include "ux500_msp_dai.h" +#include "mop500_ab8500.h" #include "../codecs/ab8500-codec.h" #define TX_SLOT_MONO 0x0008 @@ -45,6 +45,12 @@ static unsigned int tx_slots = DEF_TX_SLOTS; static unsigned int rx_slots = DEF_RX_SLOTS; +/* Configuration consistency parameters */ +static DEFINE_MUTEX(mop500_ab8500_params_lock); +static unsigned long mop500_ab8500_usage; +static int mop500_ab8500_rate; +static int mop500_ab8500_channels; + /* Clocks */ static const char * const enum_mclk[] = { "SYSCLK", @@ -127,9 +133,9 @@ static int mop500_ab8500_set_mclk(struct device *dev, static int mclk_input_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); struct mop500_ab8500_drvdata *drvdata = - snd_soc_card_get_drvdata(codec->card); + snd_soc_card_get_drvdata(card); ucontrol->value.enumerated.item[0] = drvdata->mclk_sel; @@ -139,9 +145,9 @@ static int mclk_input_control_get(struct snd_kcontrol *kcontrol, static int mclk_input_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); struct mop500_ab8500_drvdata *drvdata = - snd_soc_card_get_drvdata(codec->card); + snd_soc_card_get_drvdata(card); unsigned int val = ucontrol->value.enumerated.item[0]; if (val > (unsigned int)MCLK_ULPCLK) @@ -162,16 +168,6 @@ static struct snd_kcontrol_new mop500_ab8500_ctrls[] = { SOC_ENUM_EXT("Master Clock Select", soc_enum_mclk, mclk_input_control_get, mclk_input_control_put), - /* Digital interface - Clocks */ - SOC_SINGLE("Digital Interface Master Generator Switch", - AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENMASTGEN, - 1, 0), - SOC_SINGLE("Digital Interface 0 Bit-clock Switch", - AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENFSBITCLK0, - 1, 0), - SOC_SINGLE("Digital Interface 1 Bit-clock Switch", - AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENFSBITCLK1, - 1, 0), SOC_DAPM_PIN_SWITCH("Headset Left"), SOC_DAPM_PIN_SWITCH("Headset Right"), SOC_DAPM_PIN_SWITCH("Earpiece"), @@ -195,7 +191,7 @@ static struct snd_kcontrol_new mop500_ab8500_ctrls[] = { /* ASoC */ -int mop500_ab8500_startup(struct snd_pcm_substream *substream) +static int mop500_ab8500_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; @@ -204,7 +200,7 @@ int mop500_ab8500_startup(struct snd_pcm_substream *substream) snd_soc_card_get_drvdata(rtd->card)); } -void mop500_ab8500_shutdown(struct snd_pcm_substream *substream) +static void mop500_ab8500_shutdown(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct device *dev = rtd->card->dev; @@ -218,7 +214,7 @@ void mop500_ab8500_shutdown(struct snd_pcm_substream *substream) rx_slots = DEF_RX_SLOTS; } -int mop500_ab8500_hw_params(struct snd_pcm_substream *substream, +static int mop500_ab8500_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; @@ -242,6 +238,21 @@ int mop500_ab8500_hw_params(struct snd_pcm_substream *substream, substream->name, substream->number); + /* Ensure configuration consistency between DAIs */ + mutex_lock(&mop500_ab8500_params_lock); + if (mop500_ab8500_usage) { + if (mop500_ab8500_rate != params_rate(params) || + mop500_ab8500_channels != params_channels(params)) { + mutex_unlock(&mop500_ab8500_params_lock); + return -EBUSY; + } + } else { + mop500_ab8500_rate = params_rate(params); + mop500_ab8500_channels = params_channels(params); + } + __set_bit(cpu_dai->id, &mop500_ab8500_usage); + mutex_unlock(&mop500_ab8500_params_lock); + channels = params_channels(params); switch (params_format(params)) { @@ -340,9 +351,22 @@ int mop500_ab8500_hw_params(struct snd_pcm_substream *substream, return 0; } +static int mop500_ab8500_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + mutex_lock(&mop500_ab8500_params_lock); + __clear_bit(cpu_dai->id, &mop500_ab8500_usage); + mutex_unlock(&mop500_ab8500_params_lock); + + return 0; +} + struct snd_soc_ops mop500_ab8500_ops[] = { { .hw_params = mop500_ab8500_hw_params, + .hw_free = mop500_ab8500_hw_free, .startup = mop500_ab8500_startup, .shutdown = mop500_ab8500_shutdown, } @@ -387,7 +411,7 @@ int mop500_ab8500_machine_init(struct snd_soc_pcm_runtime *rtd) drvdata->mclk_sel = MCLK_ULPCLK; /* Add controls */ - ret = snd_soc_add_codec_controls(codec, mop500_ab8500_ctrls, + ret = snd_soc_add_card_controls(rtd->card, mop500_ab8500_ctrls, ARRAY_SIZE(mop500_ab8500_ctrls)); if (ret < 0) { pr_err("%s: Failed to add machine-controls (%d)!\n", diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c index 94a3e5705aa..5f4807b2c00 100644 --- a/sound/soc/ux500/ux500_msp_dai.c +++ b/sound/soc/ux500/ux500_msp_dai.c @@ -17,14 +17,14 @@ #include <linux/bitops.h> #include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/of.h> #include <linux/regulator/consumer.h> #include <linux/mfd/dbx500-prcmu.h> - -#include <mach/hardware.h> -#include <mach/msp.h> +#include <linux/platform_data/asoc-ux500-msp.h> #include <sound/soc.h> #include <sound/soc-dai.h> +#include <sound/dmaengine_pcm.h> #include "ux500_msp_i2s.h" #include "ux500_msp_dai.h" @@ -656,19 +656,52 @@ static int ux500_msp_dai_trigger(struct snd_pcm_substream *substream, return ret; } -static int ux500_msp_dai_probe(struct snd_soc_dai *dai) +static int ux500_msp_dai_of_probe(struct snd_soc_dai *dai) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); + struct snd_dmaengine_dai_dma_data *playback_dma_data; + struct snd_dmaengine_dai_dma_data *capture_dma_data; + + playback_dma_data = devm_kzalloc(dai->dev, + sizeof(*playback_dma_data), + GFP_KERNEL); + if (!playback_dma_data) + return -ENOMEM; + + capture_dma_data = devm_kzalloc(dai->dev, + sizeof(*capture_dma_data), + GFP_KERNEL); + if (!capture_dma_data) + return -ENOMEM; + + playback_dma_data->addr = drvdata->msp->playback_dma_data.tx_rx_addr; + capture_dma_data->addr = drvdata->msp->capture_dma_data.tx_rx_addr; + + playback_dma_data->maxburst = 4; + capture_dma_data->maxburst = 4; - drvdata->playback_dma_data.dma_cfg = drvdata->msp->dma_cfg_tx; - drvdata->capture_dma_data.dma_cfg = drvdata->msp->dma_cfg_rx; + snd_soc_dai_init_dma_data(dai, playback_dma_data, capture_dma_data); + + return 0; +} + +static int ux500_msp_dai_probe(struct snd_soc_dai *dai) +{ + struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); + struct msp_i2s_platform_data *pdata = dai->dev->platform_data; + int ret; - dai->playback_dma_data = &drvdata->playback_dma_data; - dai->capture_dma_data = &drvdata->capture_dma_data; + if (!pdata) { + ret = ux500_msp_dai_of_probe(dai); + return ret; + } - drvdata->playback_dma_data.data_size = drvdata->slot_width; - drvdata->capture_dma_data.data_size = drvdata->slot_width; + drvdata->msp->playback_dma_data.data_size = drvdata->slot_width; + drvdata->msp->capture_dma_data.data_size = drvdata->slot_width; + snd_soc_dai_init_dma_data(dai, + &drvdata->msp->playback_dma_data, + &drvdata->msp->capture_dma_data); return 0; } @@ -685,96 +718,37 @@ static struct snd_soc_dai_ops ux500_msp_dai_ops[] = { } }; -static struct snd_soc_dai_driver ux500_msp_dai_drv[UX500_NBR_OF_DAI] = { - { - .name = "ux500-msp-i2s.0", - .probe = ux500_msp_dai_probe, - .id = 0, - .suspend = NULL, - .resume = NULL, - .playback = { - .channels_min = UX500_MSP_MIN_CHANNELS, - .channels_max = UX500_MSP_MAX_CHANNELS, - .rates = UX500_I2S_RATES, - .formats = UX500_I2S_FORMATS, - }, - .capture = { - .channels_min = UX500_MSP_MIN_CHANNELS, - .channels_max = UX500_MSP_MAX_CHANNELS, - .rates = UX500_I2S_RATES, - .formats = UX500_I2S_FORMATS, - }, - .ops = ux500_msp_dai_ops, - }, - { - .name = "ux500-msp-i2s.1", - .probe = ux500_msp_dai_probe, - .id = 1, - .suspend = NULL, - .resume = NULL, - .playback = { - .channels_min = UX500_MSP_MIN_CHANNELS, - .channels_max = UX500_MSP_MAX_CHANNELS, - .rates = UX500_I2S_RATES, - .formats = UX500_I2S_FORMATS, - }, - .capture = { - .channels_min = UX500_MSP_MIN_CHANNELS, - .channels_max = UX500_MSP_MAX_CHANNELS, - .rates = UX500_I2S_RATES, - .formats = UX500_I2S_FORMATS, - }, - .ops = ux500_msp_dai_ops, - }, - { - .name = "ux500-msp-i2s.2", - .id = 2, - .probe = ux500_msp_dai_probe, - .suspend = NULL, - .resume = NULL, - .playback = { - .channels_min = UX500_MSP_MIN_CHANNELS, - .channels_max = UX500_MSP_MAX_CHANNELS, - .rates = UX500_I2S_RATES, - .formats = UX500_I2S_FORMATS, - }, - .capture = { - .channels_min = UX500_MSP_MIN_CHANNELS, - .channels_max = UX500_MSP_MAX_CHANNELS, - .rates = UX500_I2S_RATES, - .formats = UX500_I2S_FORMATS, - }, - .ops = ux500_msp_dai_ops, - }, - { - .name = "ux500-msp-i2s.3", - .probe = ux500_msp_dai_probe, - .id = 3, - .suspend = NULL, - .resume = NULL, - .playback = { - .channels_min = UX500_MSP_MIN_CHANNELS, - .channels_max = UX500_MSP_MAX_CHANNELS, - .rates = UX500_I2S_RATES, - .formats = UX500_I2S_FORMATS, - }, - .capture = { - .channels_min = UX500_MSP_MIN_CHANNELS, - .channels_max = UX500_MSP_MAX_CHANNELS, - .rates = UX500_I2S_RATES, - .formats = UX500_I2S_FORMATS, - }, - .ops = ux500_msp_dai_ops, - }, +static struct snd_soc_dai_driver ux500_msp_dai_drv = { + .probe = ux500_msp_dai_probe, + .suspend = NULL, + .resume = NULL, + .playback.channels_min = UX500_MSP_MIN_CHANNELS, + .playback.channels_max = UX500_MSP_MAX_CHANNELS, + .playback.rates = UX500_I2S_RATES, + .playback.formats = UX500_I2S_FORMATS, + .capture.channels_min = UX500_MSP_MIN_CHANNELS, + .capture.channels_max = UX500_MSP_MAX_CHANNELS, + .capture.rates = UX500_I2S_RATES, + .capture.formats = UX500_I2S_FORMATS, + .ops = ux500_msp_dai_ops, }; +static const struct snd_soc_component_driver ux500_msp_component = { + .name = "ux500-msp", +}; + + static int ux500_msp_drv_probe(struct platform_device *pdev) { struct ux500_msp_i2s_drvdata *drvdata; + struct msp_i2s_platform_data *pdata = pdev->dev.platform_data; + struct device_node *np = pdev->dev.of_node; int ret = 0; - dev_dbg(&pdev->dev, "%s: Enter (pdev->name = %s).\n", __func__, - pdev->name); + if (!pdata && !np) { + dev_err(&pdev->dev, "No platform data or Device Tree found\n"); + return -ENODEV; + } drvdata = devm_kzalloc(&pdev->dev, sizeof(struct ux500_msp_i2s_drvdata), @@ -825,8 +799,8 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) } dev_set_drvdata(&pdev->dev, drvdata); - ret = snd_soc_register_dai(&pdev->dev, - &ux500_msp_dai_drv[drvdata->msp->id]); + ret = snd_soc_register_component(&pdev->dev, &ux500_msp_component, + &ux500_msp_dai_drv, 1); if (ret < 0) { dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n", __func__, drvdata->msp->id); @@ -844,7 +818,7 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) return 0; err_reg_plat: - snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(ux500_msp_dai_drv)); + snd_soc_unregister_component(&pdev->dev); err_init_msp: clk_put(drvdata->clk); err_clk: @@ -861,7 +835,7 @@ static int ux500_msp_drv_remove(struct platform_device *pdev) ux500_pcm_unregister_platform(pdev); - snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(ux500_msp_dai_drv)); + snd_soc_unregister_component(&pdev->dev); devm_regulator_put(drvdata->reg_vape); prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, "ux500_msp_i2s"); diff --git a/sound/soc/ux500/ux500_msp_dai.h b/sound/soc/ux500/ux500_msp_dai.h index 9c778d9c383..312ae535e35 100644 --- a/sound/soc/ux500/ux500_msp_dai.h +++ b/sound/soc/ux500/ux500_msp_dai.h @@ -35,13 +35,8 @@ #define FRAME_PER_8_SLOTS 138 #define FRAME_PER_16_SLOTS 277 -#ifndef CONFIG_SND_SOC_UX500_AB5500 #define UX500_MSP_INTERNAL_CLOCK_FREQ 40000000 #define UX500_MSP1_INTERNAL_CLOCK_FREQ UX500_MSP_INTERNAL_CLOCK_FREQ -#else -#define UX500_MSP_INTERNAL_CLOCK_FREQ 13000000 -#define UX500_MSP1_INTERNAL_CLOCK_FREQ (UX500_MSP_INTERNAL_CLOCK_FREQ * 2) -#endif #define UX500_MSP_MIN_CHANNELS 1 #define UX500_MSP_MAX_CHANNELS 8 @@ -56,15 +51,11 @@ enum ux500_msp_clock_id { struct ux500_msp_i2s_drvdata { struct ux500_msp *msp; struct regulator *reg_vape; - struct ux500_msp_dma_params playback_dma_data; - struct ux500_msp_dma_params capture_dma_data; unsigned int fmt; unsigned int tx_mask; unsigned int rx_mask; int slots; int slot_width; - u8 configured; - int data_delay; /* Clocks */ unsigned int master_clk; diff --git a/sound/soc/ux500/ux500_msp_i2s.c b/sound/soc/ux500/ux500_msp_i2s.c index a26c6bf0a29..959d7b4edf5 100644 --- a/sound/soc/ux500/ux500_msp_i2s.c +++ b/sound/soc/ux500/ux500_msp_i2s.c @@ -15,22 +15,16 @@ #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/pinctrl/consumer.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/io.h> #include <linux/of.h> - -#include <mach/hardware.h> -#include <mach/msp.h> +#include <linux/platform_data/asoc-ux500-msp.h> #include <sound/soc.h> #include "ux500_msp_i2s.h" -/* MSP1/3 Tx/Rx usage protection */ -static DEFINE_SPINLOCK(msp_rxtx_lock); - /* Protocol desciptors */ static const struct msp_protdesc prot_descs[] = { { /* I2S */ @@ -358,24 +352,8 @@ static int configure_multichannel(struct ux500_msp *msp, static int enable_msp(struct ux500_msp *msp, struct ux500_msp_config *config) { - int status = 0, retval = 0; + int status = 0; u32 reg_val_DMACR, reg_val_GCR; - unsigned long flags; - - /* Check msp state whether in RUN or CONFIGURED Mode */ - if (msp->msp_state == MSP_STATE_IDLE) { - spin_lock_irqsave(&msp_rxtx_lock, flags); - if (msp->pinctrl_rxtx_ref == 0 && - !(IS_ERR(msp->pinctrl_p) || IS_ERR(msp->pinctrl_def))) { - retval = pinctrl_select_state(msp->pinctrl_p, - msp->pinctrl_def); - if (retval) - pr_err("could not set MSP defstate\n"); - } - if (!retval) - msp->pinctrl_rxtx_ref++; - spin_unlock_irqrestore(&msp_rxtx_lock, flags); - } /* Configure msp with protocol dependent settings */ configure_protocol(msp, config); @@ -389,12 +367,14 @@ static int enable_msp(struct ux500_msp *msp, struct ux500_msp_config *config) } /* Make sure the correct DMA-directions are configured */ - if ((config->direction & MSP_DIR_RX) && (!msp->dma_cfg_rx)) { + if ((config->direction & MSP_DIR_RX) && + !msp->capture_dma_data.dma_cfg) { dev_err(msp->dev, "%s: ERROR: MSP RX-mode is not configured!", __func__); return -EINVAL; } - if ((config->direction == MSP_DIR_TX) && (!msp->dma_cfg_tx)) { + if ((config->direction == MSP_DIR_TX) && + !msp->playback_dma_data.dma_cfg) { dev_err(msp->dev, "%s: ERROR: MSP TX-mode is not configured!", __func__); return -EINVAL; @@ -632,8 +612,7 @@ int ux500_msp_i2s_trigger(struct ux500_msp *msp, int cmd, int direction) int ux500_msp_i2s_close(struct ux500_msp *msp, unsigned int dir) { - int status = 0, retval = 0; - unsigned long flags; + int status = 0; dev_dbg(msp->dev, "%s: Enter (dir = 0x%01x).\n", __func__, dir); @@ -645,18 +624,6 @@ int ux500_msp_i2s_close(struct ux500_msp *msp, unsigned int dir) (~(FRAME_GEN_ENABLE | SRG_ENABLE))), msp->registers + MSP_GCR); - spin_lock_irqsave(&msp_rxtx_lock, flags); - WARN_ON(!msp->pinctrl_rxtx_ref); - msp->pinctrl_rxtx_ref--; - if (msp->pinctrl_rxtx_ref == 0 && - !(IS_ERR(msp->pinctrl_p) || IS_ERR(msp->pinctrl_sleep))) { - retval = pinctrl_select_state(msp->pinctrl_p, - msp->pinctrl_sleep); - if (retval) - pr_err("could not set MSP sleepstate\n"); - } - spin_unlock_irqrestore(&msp_rxtx_lock, flags); - writel(0, msp->registers + MSP_GCR); writel(0, msp->registers + MSP_TCF); writel(0, msp->registers + MSP_RCF); @@ -679,38 +646,63 @@ int ux500_msp_i2s_close(struct ux500_msp *msp, unsigned int dir) } +static int ux500_msp_i2s_of_init_msp(struct platform_device *pdev, + struct ux500_msp *msp, + struct msp_i2s_platform_data **platform_data) +{ + struct msp_i2s_platform_data *pdata; + + *platform_data = devm_kzalloc(&pdev->dev, + sizeof(struct msp_i2s_platform_data), + GFP_KERNEL); + pdata = *platform_data; + if (!pdata) + return -ENOMEM; + + msp->playback_dma_data.dma_cfg = devm_kzalloc(&pdev->dev, + sizeof(struct stedma40_chan_cfg), + GFP_KERNEL); + if (!msp->playback_dma_data.dma_cfg) + return -ENOMEM; + + msp->capture_dma_data.dma_cfg = devm_kzalloc(&pdev->dev, + sizeof(struct stedma40_chan_cfg), + GFP_KERNEL); + if (!msp->capture_dma_data.dma_cfg) + return -ENOMEM; + + return 0; +} + int ux500_msp_i2s_init_msp(struct platform_device *pdev, struct ux500_msp **msp_p, struct msp_i2s_platform_data *platform_data) { struct resource *res = NULL; - struct i2s_controller *i2s_cont; struct device_node *np = pdev->dev.of_node; struct ux500_msp *msp; + int ret; *msp_p = devm_kzalloc(&pdev->dev, sizeof(struct ux500_msp), GFP_KERNEL); msp = *msp_p; if (!msp) return -ENOMEM; - if (np) { - if (!platform_data) { - platform_data = devm_kzalloc(&pdev->dev, - sizeof(struct msp_i2s_platform_data), GFP_KERNEL); - if (!platform_data) - return -ENOMEM; - } - } else - if (!platform_data) + if (!platform_data) { + if (np) { + ret = ux500_msp_i2s_of_init_msp(pdev, msp, + &platform_data); + if (ret) + return ret; + } else return -EINVAL; + } else { + msp->playback_dma_data.dma_cfg = platform_data->msp_i2s_dma_tx; + msp->capture_dma_data.dma_cfg = platform_data->msp_i2s_dma_rx; + msp->id = platform_data->id; + } - dev_dbg(&pdev->dev, "%s: Enter (name: %s, id: %d).\n", __func__, - pdev->name, platform_data->id); - - msp->id = platform_data->id; msp->dev = &pdev->dev; - msp->dma_cfg_rx = platform_data->msp_i2s_dma_rx; - msp->dma_cfg_tx = platform_data->msp_i2s_dma_tx; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) { @@ -719,6 +711,9 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev, return -ENOMEM; } + msp->playback_dma_data.tx_rx_addr = res->start + MSP_DR; + msp->capture_dma_data.tx_rx_addr = res->start + MSP_DR; + msp->registers = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (msp->registers == NULL) { @@ -729,41 +724,6 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev, msp->msp_state = MSP_STATE_IDLE; msp->loopback_enable = 0; - /* I2S-controller is allocated and added in I2S controller class. */ - i2s_cont = devm_kzalloc(&pdev->dev, sizeof(*i2s_cont), GFP_KERNEL); - if (!i2s_cont) { - dev_err(&pdev->dev, - "%s: ERROR: Failed to allocate I2S-controller!\n", - __func__); - return -ENOMEM; - } - i2s_cont->dev.parent = &pdev->dev; - i2s_cont->data = (void *)msp; - i2s_cont->id = (s16)msp->id; - snprintf(i2s_cont->name, sizeof(i2s_cont->name), "ux500-msp-i2s.%04x", - msp->id); - dev_dbg(&pdev->dev, "I2S device-name: '%s'\n", i2s_cont->name); - msp->i2s_cont = i2s_cont; - - msp->pinctrl_p = pinctrl_get(msp->dev); - if (IS_ERR(msp->pinctrl_p)) - dev_err(&pdev->dev, "could not get MSP pinctrl\n"); - else { - msp->pinctrl_def = pinctrl_lookup_state(msp->pinctrl_p, - PINCTRL_STATE_DEFAULT); - if (IS_ERR(msp->pinctrl_def)) { - dev_err(&pdev->dev, - "could not get MSP defstate (%li)\n", - PTR_ERR(msp->pinctrl_def)); - } - msp->pinctrl_sleep = pinctrl_lookup_state(msp->pinctrl_p, - PINCTRL_STATE_SLEEP); - if (IS_ERR(msp->pinctrl_sleep)) - dev_err(&pdev->dev, - "could not get MSP idlestate (%li)\n", - PTR_ERR(msp->pinctrl_def)); - } - return 0; } @@ -771,8 +731,6 @@ void ux500_msp_i2s_cleanup_msp(struct platform_device *pdev, struct ux500_msp *msp) { dev_dbg(msp->dev, "%s: Enter (id = %d).\n", __func__, msp->id); - - device_unregister(&msp->i2s_cont->dev); } MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/ux500/ux500_msp_i2s.h b/sound/soc/ux500/ux500_msp_i2s.h index 1311c0df762..875de0f68b8 100644 --- a/sound/soc/ux500/ux500_msp_i2s.h +++ b/sound/soc/ux500/ux500_msp_i2s.h @@ -16,8 +16,7 @@ #define UX500_MSP_I2S_H #include <linux/platform_device.h> - -#include <mach/msp.h> +#include <linux/platform_data/asoc-ux500-msp.h> #define MSP_INPUT_FREQ_APB 48000000 @@ -343,11 +342,6 @@ enum msp_compress_mode { MSP_COMPRESS_MODE_A_LAW = 3 }; -enum msp_spi_burst_mode { - MSP_SPI_BURST_MODE_DISABLE = 0, - MSP_SPI_BURST_MODE_ENABLE = 1 -}; - enum msp_expand_mode { MSP_EXPAND_MODE_LINEAR = 0, MSP_EXPAND_MODE_LINEAR_SIGNED = 1, @@ -372,13 +366,6 @@ enum msp_protocol { */ #define MAX_MSP_BACKUP_REGS 36 -enum enum_i2s_controller { - MSP_0_I2S_CONTROLLER = 0, - MSP_1_I2S_CONTROLLER, - MSP_2_I2S_CONTROLLER, - MSP_3_I2S_CONTROLLER, -}; - enum i2s_direction_t { MSP_DIR_TX = 0x01, MSP_DIR_RX = 0x02, @@ -456,32 +443,6 @@ struct msp_protdesc { u32 clocks_per_frame; }; -struct i2s_message { - enum i2s_direction_t i2s_direction; - void *txdata; - void *rxdata; - size_t txbytes; - size_t rxbytes; - int dma_flag; - int tx_offset; - int rx_offset; - bool cyclic_dma; - dma_addr_t buf_addr; - size_t buf_len; - size_t period_len; -}; - -struct i2s_controller { - struct module *owner; - unsigned int id; - unsigned int class; - const struct i2s_algorithm *algo; /* the algorithm to access the bus */ - void *data; - struct mutex bus_lock; - struct device dev; /* the controller device */ - char name[48]; -}; - struct ux500_msp_config { unsigned int f_inputclk; unsigned int rx_clk_sel; @@ -493,8 +454,6 @@ struct ux500_msp_config { unsigned int tx_fsync_sel; unsigned int rx_fifo_config; unsigned int tx_fifo_config; - unsigned int spi_clk_mode; - unsigned int spi_burst_mode; unsigned int loopback_enable; unsigned int tx_data_enable; unsigned int default_protdesc; @@ -504,45 +463,31 @@ struct ux500_msp_config { unsigned int direction; unsigned int protocol; unsigned int frame_freq; - unsigned int frame_size; enum msp_data_size data_size; unsigned int def_elem_len; unsigned int iodelay; - void (*handler) (void *data); - void *tx_callback_data; - void *rx_callback_data; +}; + +struct ux500_msp_dma_params { + unsigned int data_size; + dma_addr_t tx_rx_addr; + struct stedma40_chan_cfg *dma_cfg; }; struct ux500_msp { - enum enum_i2s_controller id; + int id; void __iomem *registers; struct device *dev; - struct i2s_controller *i2s_cont; - struct stedma40_chan_cfg *dma_cfg_rx; - struct stedma40_chan_cfg *dma_cfg_tx; - struct dma_chan *tx_pipeid; - struct dma_chan *rx_pipeid; + struct ux500_msp_dma_params playback_dma_data; + struct ux500_msp_dma_params capture_dma_data; enum msp_state msp_state; - int (*transfer) (struct ux500_msp *msp, struct i2s_message *message); - struct timer_list notify_timer; int def_elem_len; unsigned int dir_busy; int loopback_enable; - u32 backup_regs[MAX_MSP_BACKUP_REGS]; unsigned int f_bitclk; - /* Pin modes */ - struct pinctrl *pinctrl_p; - struct pinctrl_state *pinctrl_def; - struct pinctrl_state *pinctrl_sleep; - /* Reference Count */ - int pinctrl_rxtx_ref; -}; - -struct ux500_msp_dma_params { - unsigned int data_size; - struct stedma40_chan_cfg *dma_cfg; }; +struct msp_i2s_platform_data; int ux500_msp_i2s_init_msp(struct platform_device *pdev, struct ux500_msp **msp_p, struct msp_i2s_platform_data *platform_data); diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c index 846fa82a58d..51a66a87305 100644 --- a/sound/soc/ux500/ux500_pcm.c +++ b/sound/soc/ux500/ux500_pcm.c @@ -28,41 +28,17 @@ #include "ux500_msp_i2s.h" #include "ux500_pcm.h" -static struct snd_pcm_hardware ux500_pcm_hw_playback = { - .info = SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_RESUME | - SNDRV_PCM_INFO_PAUSE, - .formats = SNDRV_PCM_FMTBIT_S16_LE | - SNDRV_PCM_FMTBIT_U16_LE | - SNDRV_PCM_FMTBIT_S16_BE | - SNDRV_PCM_FMTBIT_U16_BE, - .rates = SNDRV_PCM_RATE_KNOT, - .rate_min = UX500_PLATFORM_MIN_RATE_PLAYBACK, - .rate_max = UX500_PLATFORM_MAX_RATE_PLAYBACK, - .channels_min = UX500_PLATFORM_MIN_CHANNELS, - .channels_max = UX500_PLATFORM_MAX_CHANNELS, - .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX, - .period_bytes_min = UX500_PLATFORM_PERIODS_BYTES_MIN, - .period_bytes_max = UX500_PLATFORM_PERIODS_BYTES_MAX, - .periods_min = UX500_PLATFORM_PERIODS_MIN, - .periods_max = UX500_PLATFORM_PERIODS_MAX, -}; +#define UX500_PLATFORM_PERIODS_BYTES_MIN 128 +#define UX500_PLATFORM_PERIODS_BYTES_MAX (64 * PAGE_SIZE) +#define UX500_PLATFORM_PERIODS_MIN 2 +#define UX500_PLATFORM_PERIODS_MAX 48 +#define UX500_PLATFORM_BUFFER_BYTES_MAX (2048 * PAGE_SIZE) -static struct snd_pcm_hardware ux500_pcm_hw_capture = { +static const struct snd_pcm_hardware ux500_pcm_hw = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_PAUSE, - .formats = SNDRV_PCM_FMTBIT_S16_LE | - SNDRV_PCM_FMTBIT_U16_LE | - SNDRV_PCM_FMTBIT_S16_BE | - SNDRV_PCM_FMTBIT_U16_BE, - .rates = SNDRV_PCM_RATE_KNOT, - .rate_min = UX500_PLATFORM_MIN_RATE_CAPTURE, - .rate_max = UX500_PLATFORM_MAX_RATE_CAPTURE, - .channels_min = UX500_PLATFORM_MIN_CHANNELS, - .channels_max = UX500_PLATFORM_MAX_CHANNELS, .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX, .period_bytes_min = UX500_PLATFORM_PERIODS_BYTES_MIN, .period_bytes_max = UX500_PLATFORM_PERIODS_BYTES_MAX, @@ -70,83 +46,33 @@ static struct snd_pcm_hardware ux500_pcm_hw_capture = { .periods_max = UX500_PLATFORM_PERIODS_MAX, }; -static void ux500_pcm_dma_hw_free(struct device *dev, - struct snd_pcm_substream *substream) +static struct dma_chan *ux500_pcm_request_chan(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_substream *substream) { - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_dma_buffer *buf = runtime->dma_buffer_p; - - if (runtime->dma_area == NULL) - return; - - if (buf != &substream->dma_buffer) { - dma_free_coherent(buf->dev.dev, buf->bytes, buf->area, - buf->addr); - kfree(runtime->dma_buffer_p); - } - - snd_pcm_set_runtime_buffer(substream, NULL); -} - -static int ux500_pcm_open(struct snd_pcm_substream *substream) -{ - int stream_id = substream->pstr->stream; - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *dai = rtd->cpu_dai; - struct device *dev = dai->dev; - int ret; - struct ux500_msp_dma_params *dma_params; u16 per_data_width, mem_data_width; struct stedma40_chan_cfg *dma_cfg; + struct ux500_msp_dma_params *dma_params; - dev_dbg(dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id, - snd_pcm_stream_str(substream)); - - dev_dbg(dev, "%s: Set runtime hwparams.\n", __func__); - if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) - snd_soc_set_runtime_hwparams(substream, - &ux500_pcm_hw_playback); - else - snd_soc_set_runtime_hwparams(substream, - &ux500_pcm_hw_capture); - - /* ensure that buffer size is a multiple of period size */ - ret = snd_pcm_hw_constraint_integer(runtime, - SNDRV_PCM_HW_PARAM_PERIODS); - if (ret < 0) { - dev_err(dev, "%s: Error: snd_pcm_hw_constraints failed (%d)\n", - __func__, ret); - return ret; - } - - dev_dbg(dev, "%s: Set hw-struct for %s.\n", __func__, - snd_pcm_stream_str(substream)); - runtime->hw = (stream_id == SNDRV_PCM_STREAM_PLAYBACK) ? - ux500_pcm_hw_playback : ux500_pcm_hw_capture; + dma_params = snd_soc_dai_get_dma_data(dai, substream); + dma_cfg = dma_params->dma_cfg; - mem_data_width = STEDMA40_HALFWORD_WIDTH; + mem_data_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - dma_params = snd_soc_dai_get_dma_data(dai, substream); switch (dma_params->data_size) { case 32: - per_data_width = STEDMA40_WORD_WIDTH; + per_data_width = DMA_SLAVE_BUSWIDTH_4_BYTES; break; case 16: - per_data_width = STEDMA40_HALFWORD_WIDTH; + per_data_width = DMA_SLAVE_BUSWIDTH_2_BYTES; break; case 8: - per_data_width = STEDMA40_BYTE_WIDTH; + per_data_width = DMA_SLAVE_BUSWIDTH_1_BYTE; break; default: - per_data_width = STEDMA40_WORD_WIDTH; - dev_warn(rtd->platform->dev, - "%s: Unknown data-size (%d)! Assuming 32 bits.\n", - __func__, dma_params->data_size); + per_data_width = DMA_SLAVE_BUSWIDTH_4_BYTES; } - dma_cfg = dma_params->dma_cfg; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { dma_cfg->src_info.data_width = mem_data_width; dma_cfg->dst_info.data_width = per_data_width; @@ -155,137 +81,74 @@ static int ux500_pcm_open(struct snd_pcm_substream *substream) dma_cfg->dst_info.data_width = mem_data_width; } - - ret = snd_dmaengine_pcm_open(substream, stedma40_filter, dma_cfg); - if (ret) { - dev_dbg(dai->dev, - "%s: ERROR: snd_dmaengine_pcm_open failed (%d)!\n", - __func__, ret); - return ret; - } - - snd_dmaengine_pcm_set_data(substream, dma_cfg); - - return 0; -} - -static int ux500_pcm_close(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *dai = rtd->cpu_dai; - - dev_dbg(dai->dev, "%s: Enter\n", __func__); - - snd_dmaengine_pcm_close(substream); - - return 0; + return snd_dmaengine_pcm_request_channel(stedma40_filter, dma_cfg); } -static int ux500_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) +static int ux500_pcm_prepare_slave_config(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct dma_slave_config *slave_config) { - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_dma_buffer *buf = runtime->dma_buffer_p; struct snd_soc_pcm_runtime *rtd = substream->private_data; - int ret = 0; - int size; - - dev_dbg(rtd->platform->dev, "%s: Enter\n", __func__); - - size = params_buffer_bytes(hw_params); - - if (buf) { - if (buf->bytes >= size) - goto out; - ux500_pcm_dma_hw_free(NULL, substream); - } + struct msp_i2s_platform_data *pdata = rtd->cpu_dai->dev->platform_data; + struct snd_dmaengine_dai_dma_data *snd_dma_params; + struct ux500_msp_dma_params *ste_dma_params; + dma_addr_t dma_addr; + int ret; - if (substream->dma_buffer.area != NULL && - substream->dma_buffer.bytes >= size) { - buf = &substream->dma_buffer; + if (pdata) { + ste_dma_params = + snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + dma_addr = ste_dma_params->tx_rx_addr; } else { - buf = kmalloc(sizeof(struct snd_dma_buffer), GFP_KERNEL); - if (!buf) - goto nomem; - - buf->dev.type = SNDRV_DMA_TYPE_DEV; - buf->dev.dev = NULL; - buf->area = dma_alloc_coherent(NULL, size, &buf->addr, - GFP_KERNEL); - buf->bytes = size; - buf->private_data = NULL; - - if (!buf->area) - goto free; + snd_dma_params = + snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + dma_addr = snd_dma_params->addr; } - snd_pcm_set_runtime_buffer(substream, buf); - ret = 1; - out: - runtime->dma_bytes = size; - return ret; - free: - kfree(buf); - nomem: - return -ENOMEM; -} + ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config); + if (ret) + return ret; -static int ux500_pcm_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; + slave_config->dst_maxburst = 4; + slave_config->src_maxburst = 4; - dev_dbg(rtd->platform->dev, "%s: Enter\n", __func__); + slave_config->src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - ux500_pcm_dma_hw_free(NULL, substream); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + slave_config->dst_addr = dma_addr; + else + slave_config->src_addr = dma_addr; return 0; } -static int ux500_pcm_mmap(struct snd_pcm_substream *substream, - struct vm_area_struct *vma) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_soc_pcm_runtime *rtd = substream->private_data; - - dev_dbg(rtd->platform->dev, "%s: Enter.\n", __func__); - - return dma_mmap_coherent(NULL, vma, runtime->dma_area, - runtime->dma_addr, runtime->dma_bytes); -} - -static struct snd_pcm_ops ux500_pcm_ops = { - .open = ux500_pcm_open, - .close = ux500_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = ux500_pcm_hw_params, - .hw_free = ux500_pcm_hw_free, - .trigger = snd_dmaengine_pcm_trigger, - .pointer = snd_dmaengine_pcm_pointer_no_residue, - .mmap = ux500_pcm_mmap +static const struct snd_dmaengine_pcm_config ux500_dmaengine_pcm_config = { + .pcm_hardware = &ux500_pcm_hw, + .compat_request_channel = ux500_pcm_request_chan, + .prealloc_buffer_size = 128 * 1024, + .prepare_slave_config = ux500_pcm_prepare_slave_config, }; -int ux500_pcm_new(struct snd_soc_pcm_runtime *rtd) -{ - struct snd_pcm *pcm = rtd->pcm; - - dev_dbg(rtd->platform->dev, "%s: Enter (id = '%s').\n", __func__, - pcm->id); - - pcm->info_flags = 0; - - return 0; -} - -static struct snd_soc_platform_driver ux500_pcm_soc_drv = { - .ops = &ux500_pcm_ops, - .pcm_new = ux500_pcm_new, +static const struct snd_dmaengine_pcm_config ux500_dmaengine_of_pcm_config = { + .compat_request_channel = ux500_pcm_request_chan, + .prepare_slave_config = ux500_pcm_prepare_slave_config, }; int ux500_pcm_register_platform(struct platform_device *pdev) { + const struct snd_dmaengine_pcm_config *pcm_config; + struct device_node *np = pdev->dev.of_node; int ret; - ret = snd_soc_register_platform(&pdev->dev, &ux500_pcm_soc_drv); + if (np) + pcm_config = &ux500_dmaengine_of_pcm_config; + else + pcm_config = &ux500_dmaengine_pcm_config; + + ret = snd_dmaengine_pcm_register(&pdev->dev, pcm_config, + SND_DMAENGINE_PCM_FLAG_NO_RESIDUE | + SND_DMAENGINE_PCM_FLAG_COMPAT); if (ret < 0) { dev_err(&pdev->dev, "%s: ERROR: Failed to register platform '%s' (%d)!\n", @@ -299,8 +162,7 @@ EXPORT_SYMBOL_GPL(ux500_pcm_register_platform); int ux500_pcm_unregister_platform(struct platform_device *pdev) { - snd_soc_unregister_platform(&pdev->dev); - + snd_dmaengine_pcm_unregister(&pdev->dev); return 0; } EXPORT_SYMBOL_GPL(ux500_pcm_unregister_platform); diff --git a/sound/soc/ux500/ux500_pcm.h b/sound/soc/ux500/ux500_pcm.h index 76d344476af..d76e1aff645 100644 --- a/sound/soc/ux500/ux500_pcm.h +++ b/sound/soc/ux500/ux500_pcm.h @@ -18,20 +18,6 @@ #include <linux/workqueue.h> -#define UX500_PLATFORM_MIN_RATE_PLAYBACK 8000 -#define UX500_PLATFORM_MAX_RATE_PLAYBACK 48000 -#define UX500_PLATFORM_MIN_RATE_CAPTURE 8000 -#define UX500_PLATFORM_MAX_RATE_CAPTURE 48000 - -#define UX500_PLATFORM_MIN_CHANNELS 1 -#define UX500_PLATFORM_MAX_CHANNELS 8 - -#define UX500_PLATFORM_PERIODS_BYTES_MIN 128 -#define UX500_PLATFORM_PERIODS_BYTES_MAX (64 * PAGE_SIZE) -#define UX500_PLATFORM_PERIODS_MIN 2 -#define UX500_PLATFORM_PERIODS_MAX 48 -#define UX500_PLATFORM_BUFFER_BYTES_MAX (2048 * PAGE_SIZE) - int ux500_pcm_register_platform(struct platform_device *pdev); int ux500_pcm_unregister_platform(struct platform_device *pdev); |
