From 5185e0acc831e250257ba04f5204dc5f5c1e5d0a Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 6 Nov 2013 15:18:22 -0700 Subject: ASoC: tegra: use reset framework Tegra's clock driver now provides an implementation of the common reset API (include/linux/reset.h). Use this instead of the old Tegra- specific API; that will soon be removed. This change also renames "clock"/"clk" to "modules"/"mod" in symbols related to entries in configlink_clocks[], since: - We don't care about clock handles any more, but rather reset handles, so the old name isn't applicable. - It really is a list of modules on the bus, about which we currently only care about reset handles. If we start caring about any other aspect of the modules in the future, we won't have to rename all these symbols again. Note: The addition of "depends COMMON_CLOCK" is something that was missing before, not a new requirement. Signed-off-by: Stephen Warren Acked-by: Mark Brown Reviewed-by: Thierry Reding --- sound/soc/tegra/Kconfig | 2 ++ sound/soc/tegra/tegra30_ahub.c | 71 ++++++++++++++++++++++-------------------- sound/soc/tegra/tegra30_ahub.h | 2 +- 3 files changed, 41 insertions(+), 34 deletions(-) (limited to 'sound/soc/tegra') diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig index 8fc653ca3ab4..896292bb853f 100644 --- a/sound/soc/tegra/Kconfig +++ b/sound/soc/tegra/Kconfig @@ -1,6 +1,8 @@ config SND_SOC_TEGRA tristate "SoC Audio for the Tegra System-on-Chip" depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST + depends on COMMON_CLK + depends on RESET_CONTROLLER select REGMAP_MMIO select SND_SOC_GENERIC_DMAENGINE_PCM help diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c index 31154338c1eb..38c6962b7d66 100644 --- a/sound/soc/tegra/tegra30_ahub.c +++ b/sound/soc/tegra/tegra30_ahub.c @@ -24,8 +24,8 @@ #include #include #include +#include #include -#include #include #include "tegra30_ahub.h" @@ -301,27 +301,27 @@ int tegra30_ahub_unset_rx_cif_source(enum tegra30_ahub_rxcif rxcif) } EXPORT_SYMBOL_GPL(tegra30_ahub_unset_rx_cif_source); -#define CLK_LIST_MASK_TEGRA30 BIT(0) -#define CLK_LIST_MASK_TEGRA114 BIT(1) +#define MOD_LIST_MASK_TEGRA30 BIT(0) +#define MOD_LIST_MASK_TEGRA114 BIT(1) -#define CLK_LIST_MASK_TEGRA30_OR_LATER \ - (CLK_LIST_MASK_TEGRA30 | CLK_LIST_MASK_TEGRA114) +#define MOD_LIST_MASK_TEGRA30_OR_LATER \ + (MOD_LIST_MASK_TEGRA30 | MOD_LIST_MASK_TEGRA114) static const struct { - const char *clk_name; - u32 clk_list_mask; -} configlink_clocks[] = { - { "i2s0", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "i2s1", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "i2s2", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "i2s3", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "i2s4", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "dam0", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "dam1", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "dam2", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "spdif_in", CLK_LIST_MASK_TEGRA30_OR_LATER }, - { "amx", CLK_LIST_MASK_TEGRA114 }, - { "adx", CLK_LIST_MASK_TEGRA114 }, + const char *rst_name; + u32 mod_list_mask; +} configlink_mods[] = { + { "i2s0", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "i2s1", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "i2s2", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "i2s3", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "i2s4", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "dam0", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "dam1", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "dam2", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "spdif", MOD_LIST_MASK_TEGRA30_OR_LATER }, + { "amx", MOD_LIST_MASK_TEGRA114 }, + { "adx", MOD_LIST_MASK_TEGRA114 }, }; #define LAST_REG(name) \ @@ -450,17 +450,17 @@ static const struct regmap_config tegra30_ahub_ahub_regmap_config = { }; static struct tegra30_ahub_soc_data soc_data_tegra30 = { - .clk_list_mask = CLK_LIST_MASK_TEGRA30, + .mod_list_mask = MOD_LIST_MASK_TEGRA30, .set_audio_cif = tegra30_ahub_set_cif, }; static struct tegra30_ahub_soc_data soc_data_tegra114 = { - .clk_list_mask = CLK_LIST_MASK_TEGRA114, + .mod_list_mask = MOD_LIST_MASK_TEGRA114, .set_audio_cif = tegra30_ahub_set_cif, }; static struct tegra30_ahub_soc_data soc_data_tegra124 = { - .clk_list_mask = CLK_LIST_MASK_TEGRA114, + .mod_list_mask = MOD_LIST_MASK_TEGRA114, .set_audio_cif = tegra124_ahub_set_cif, }; @@ -475,7 +475,7 @@ static int tegra30_ahub_probe(struct platform_device *pdev) { const struct of_device_id *match; const struct tegra30_ahub_soc_data *soc_data; - struct clk *clk; + struct reset_control *rst; int i; struct resource *res0, *res1, *region; u32 of_dma[2]; @@ -495,19 +495,24 @@ static int tegra30_ahub_probe(struct platform_device *pdev) * operate correctly, all devices on this bus must be out of reset. * Ensure that here. */ - for (i = 0; i < ARRAY_SIZE(configlink_clocks); i++) { - if (!(configlink_clocks[i].clk_list_mask & - soc_data->clk_list_mask)) + for (i = 0; i < ARRAY_SIZE(configlink_mods); i++) { + if (!(configlink_mods[i].mod_list_mask & + soc_data->mod_list_mask)) continue; - clk = clk_get(&pdev->dev, configlink_clocks[i].clk_name); - if (IS_ERR(clk)) { - dev_err(&pdev->dev, "Can't get clock %s\n", - configlink_clocks[i].clk_name); - ret = PTR_ERR(clk); + + rst = reset_control_get(&pdev->dev, + configlink_mods[i].rst_name); + if (IS_ERR(rst)) { + dev_err(&pdev->dev, "Can't get reset %s\n", + configlink_mods[i].rst_name); + ret = PTR_ERR(rst); goto err; } - tegra_periph_reset_deassert(clk); - clk_put(clk); + + ret = reset_control_deassert(rst); + reset_control_put(rst); + if (ret) + goto err; } ahub = devm_kzalloc(&pdev->dev, sizeof(struct tegra30_ahub), diff --git a/sound/soc/tegra/tegra30_ahub.h b/sound/soc/tegra/tegra30_ahub.h index d67321d90faa..1383f8cd3572 100644 --- a/sound/soc/tegra/tegra30_ahub.h +++ b/sound/soc/tegra/tegra30_ahub.h @@ -502,7 +502,7 @@ void tegra124_ahub_set_cif(struct regmap *regmap, unsigned int reg, struct tegra30_ahub_cif_conf *conf); struct tegra30_ahub_soc_data { - u32 clk_list_mask; + u32 mod_list_mask; void (*set_audio_cif)(struct regmap *regmap, unsigned int reg, struct tegra30_ahub_cif_conf *conf); -- cgit v1.2.3 From 768db0b93d6f0ed10f351b5eca34ef44b456369c Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 15 Nov 2013 11:29:45 -0700 Subject: ASoC: tegra: call pm_runtime APIs around register accesses Call pm_runtime_get_sync() before all register accesses; the HW requires clocks to be running when accessing registers. This hasn't been needed to date, since all register IO was performed while playback was active, and hence the ASoC core had already called pm_runtime_get(). However, an imminent future commit will allocate and set up the FIFOs and routing during probe(), when that "protection" won't be in place. Signed-off-by: Stephen Warren Acked-by: Mark Brown --- sound/soc/tegra/tegra30_ahub.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'sound/soc/tegra') diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c index 38c6962b7d66..7d146e6b7038 100644 --- a/sound/soc/tegra/tegra30_ahub.c +++ b/sound/soc/tegra/tegra30_ahub.c @@ -114,6 +114,8 @@ int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, (channel * TEGRA30_AHUB_CHANNEL_RXFIFO_STRIDE); *reqsel = ahub->dma_sel + channel; + pm_runtime_get_sync(ahub->dev); + reg = TEGRA30_AHUB_CHANNEL_CTRL + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); val = tegra30_apbif_read(reg); @@ -140,6 +142,8 @@ int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, (channel * TEGRA30_AHUB_CIF_RX_CTRL_STRIDE); ahub->soc_data->set_audio_cif(ahub->regmap_apbif, reg, &cif_conf); + pm_runtime_put(ahub->dev); + return 0; } EXPORT_SYMBOL_GPL(tegra30_ahub_allocate_rx_fifo); @@ -149,12 +153,16 @@ int tegra30_ahub_enable_rx_fifo(enum tegra30_ahub_rxcif rxcif) int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; int reg, val; + pm_runtime_get_sync(ahub->dev); + reg = TEGRA30_AHUB_CHANNEL_CTRL + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); val = tegra30_apbif_read(reg); val |= TEGRA30_AHUB_CHANNEL_CTRL_RX_EN; tegra30_apbif_write(reg, val); + pm_runtime_put(ahub->dev); + return 0; } EXPORT_SYMBOL_GPL(tegra30_ahub_enable_rx_fifo); @@ -164,12 +172,16 @@ int tegra30_ahub_disable_rx_fifo(enum tegra30_ahub_rxcif rxcif) int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; int reg, val; + pm_runtime_get_sync(ahub->dev); + reg = TEGRA30_AHUB_CHANNEL_CTRL + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); val = tegra30_apbif_read(reg); val &= ~TEGRA30_AHUB_CHANNEL_CTRL_RX_EN; tegra30_apbif_write(reg, val); + pm_runtime_put(ahub->dev); + return 0; } EXPORT_SYMBOL_GPL(tegra30_ahub_disable_rx_fifo); @@ -204,6 +216,8 @@ int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, (channel * TEGRA30_AHUB_CHANNEL_TXFIFO_STRIDE); *reqsel = ahub->dma_sel + channel; + pm_runtime_get_sync(ahub->dev); + reg = TEGRA30_AHUB_CHANNEL_CTRL + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); val = tegra30_apbif_read(reg); @@ -230,6 +244,8 @@ int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, (channel * TEGRA30_AHUB_CIF_TX_CTRL_STRIDE); ahub->soc_data->set_audio_cif(ahub->regmap_apbif, reg, &cif_conf); + pm_runtime_put(ahub->dev); + return 0; } EXPORT_SYMBOL_GPL(tegra30_ahub_allocate_tx_fifo); @@ -239,12 +255,16 @@ int tegra30_ahub_enable_tx_fifo(enum tegra30_ahub_txcif txcif) int channel = txcif - TEGRA30_AHUB_TXCIF_APBIF_TX0; int reg, val; + pm_runtime_get_sync(ahub->dev); + reg = TEGRA30_AHUB_CHANNEL_CTRL + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); val = tegra30_apbif_read(reg); val |= TEGRA30_AHUB_CHANNEL_CTRL_TX_EN; tegra30_apbif_write(reg, val); + pm_runtime_put(ahub->dev); + return 0; } EXPORT_SYMBOL_GPL(tegra30_ahub_enable_tx_fifo); @@ -254,12 +274,16 @@ int tegra30_ahub_disable_tx_fifo(enum tegra30_ahub_txcif txcif) int channel = txcif - TEGRA30_AHUB_TXCIF_APBIF_TX0; int reg, val; + pm_runtime_get_sync(ahub->dev); + reg = TEGRA30_AHUB_CHANNEL_CTRL + (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE); val = tegra30_apbif_read(reg); val &= ~TEGRA30_AHUB_CHANNEL_CTRL_TX_EN; tegra30_apbif_write(reg, val); + pm_runtime_put(ahub->dev); + return 0; } EXPORT_SYMBOL_GPL(tegra30_ahub_disable_tx_fifo); @@ -280,10 +304,14 @@ int tegra30_ahub_set_rx_cif_source(enum tegra30_ahub_rxcif rxcif, int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; int reg; + pm_runtime_get_sync(ahub->dev); + reg = TEGRA30_AHUB_AUDIO_RX + (channel * TEGRA30_AHUB_AUDIO_RX_STRIDE); tegra30_audio_write(reg, 1 << txcif); + pm_runtime_put(ahub->dev); + return 0; } EXPORT_SYMBOL_GPL(tegra30_ahub_set_rx_cif_source); @@ -293,10 +321,14 @@ int tegra30_ahub_unset_rx_cif_source(enum tegra30_ahub_rxcif rxcif) int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0; int reg; + pm_runtime_get_sync(ahub->dev); + reg = TEGRA30_AHUB_AUDIO_RX + (channel * TEGRA30_AHUB_AUDIO_RX_STRIDE); tegra30_audio_write(reg, 0); + pm_runtime_put(ahub->dev); + return 0; } EXPORT_SYMBOL_GPL(tegra30_ahub_unset_rx_cif_source); -- cgit v1.2.3 From d59afb6a961519d81557f6b13d04ec1498c074fe Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 15 Nov 2013 11:48:47 -0700 Subject: ASoC: tegra: allocate AHUB FIFO during probe() not startup() The Tegra30 I2S driver currently allocates DMA FIFOs from the AHUB only when an audio stream starts playback. This is theoretically nice for resource sharing, but makes no practical difference for any configuration the drivers currently support. However, this deferral prevents conversion to the standard DMA DT bindings, since conversion requires knowledge of the specific DMA channel to be allocated, which in turn depends on which specific FIFO was allocated. For this reason, move the FIFO allocation into probe() to allow later conversion to the standard DMA DT bindings. Signed-off-by: Stephen Warren Acked-by: Mark Brown --- sound/soc/tegra/tegra30_i2s.c | 91 ++++++++++++++++++++++--------------------- 1 file changed, 47 insertions(+), 44 deletions(-) (limited to 'sound/soc/tegra') diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c index 231a785b3921..531a1ff2101d 100644 --- a/sound/soc/tegra/tegra30_i2s.c +++ b/sound/soc/tegra/tegra30_i2s.c @@ -73,47 +73,6 @@ static int tegra30_i2s_runtime_resume(struct device *dev) return 0; } -static int tegra30_i2s_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai); - int ret; - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - ret = tegra30_ahub_allocate_tx_fifo(&i2s->playback_fifo_cif, - &i2s->playback_dma_data.addr, - &i2s->playback_dma_data.slave_id); - i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - i2s->playback_dma_data.maxburst = 4; - tegra30_ahub_set_rx_cif_source(i2s->playback_i2s_cif, - i2s->playback_fifo_cif); - } else { - ret = tegra30_ahub_allocate_rx_fifo(&i2s->capture_fifo_cif, - &i2s->capture_dma_data.addr, - &i2s->capture_dma_data.slave_id); - i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - i2s->capture_dma_data.maxburst = 4; - tegra30_ahub_set_rx_cif_source(i2s->capture_fifo_cif, - i2s->capture_i2s_cif); - } - - return ret; -} - -static void tegra30_i2s_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai); - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - tegra30_ahub_unset_rx_cif_source(i2s->playback_i2s_cif); - tegra30_ahub_free_tx_fifo(i2s->playback_fifo_cif); - } else { - tegra30_ahub_unset_rx_cif_source(i2s->capture_fifo_cif); - tegra30_ahub_free_rx_fifo(i2s->capture_fifo_cif); - } -} - static int tegra30_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { @@ -317,8 +276,6 @@ static int tegra30_i2s_probe(struct snd_soc_dai *dai) } static struct snd_soc_dai_ops tegra30_i2s_dai_ops = { - .startup = tegra30_i2s_startup, - .shutdown = tegra30_i2s_shutdown, .set_fmt = tegra30_i2s_set_fmt, .hw_params = tegra30_i2s_hw_params, .trigger = tegra30_i2s_trigger, @@ -499,12 +456,44 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev) goto err_pm_disable; } + i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + i2s->playback_dma_data.maxburst = 4; + ret = tegra30_ahub_allocate_tx_fifo(&i2s->playback_fifo_cif, + &i2s->playback_dma_data.addr, + &i2s->playback_dma_data.slave_id); + if (ret) { + dev_err(&pdev->dev, "Could not alloc TX FIFO: %d\n", ret); + goto err_suspend; + } + ret = tegra30_ahub_set_rx_cif_source(i2s->playback_i2s_cif, + i2s->playback_fifo_cif); + if (ret) { + dev_err(&pdev->dev, "Could not route TX FIFO: %d\n", ret); + goto err_free_tx_fifo; + } + + i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + i2s->capture_dma_data.maxburst = 4; + ret = tegra30_ahub_allocate_rx_fifo(&i2s->capture_fifo_cif, + &i2s->capture_dma_data.addr, + &i2s->capture_dma_data.slave_id); + if (ret) { + dev_err(&pdev->dev, "Could not alloc RX FIFO: %d\n", ret); + goto err_unroute_tx_fifo; + } + ret = tegra30_ahub_set_rx_cif_source(i2s->capture_fifo_cif, + i2s->capture_i2s_cif); + if (ret) { + dev_err(&pdev->dev, "Could not route TX FIFO: %d\n", ret); + goto err_free_rx_fifo; + } + ret = snd_soc_register_component(&pdev->dev, &tegra30_i2s_component, &i2s->dai, 1); if (ret) { dev_err(&pdev->dev, "Could not register DAI: %d\n", ret); ret = -ENOMEM; - goto err_suspend; + goto err_unroute_rx_fifo; } ret = tegra_pcm_platform_register(&pdev->dev); @@ -517,6 +506,14 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev) err_unregister_component: snd_soc_unregister_component(&pdev->dev); +err_unroute_rx_fifo: + tegra30_ahub_unset_rx_cif_source(i2s->capture_fifo_cif); +err_free_rx_fifo: + tegra30_ahub_free_rx_fifo(i2s->capture_fifo_cif); +err_unroute_tx_fifo: + tegra30_ahub_unset_rx_cif_source(i2s->playback_i2s_cif); +err_free_tx_fifo: + tegra30_ahub_free_tx_fifo(i2s->playback_fifo_cif); err_suspend: if (!pm_runtime_status_suspended(&pdev->dev)) tegra30_i2s_runtime_suspend(&pdev->dev); @@ -539,6 +536,12 @@ static int tegra30_i2s_platform_remove(struct platform_device *pdev) tegra_pcm_platform_unregister(&pdev->dev); snd_soc_unregister_component(&pdev->dev); + tegra30_ahub_unset_rx_cif_source(i2s->capture_fifo_cif); + tegra30_ahub_free_rx_fifo(i2s->capture_fifo_cif); + + tegra30_ahub_unset_rx_cif_source(i2s->playback_i2s_cif); + tegra30_ahub_free_tx_fifo(i2s->playback_fifo_cif); + clk_put(i2s->clk_i2s); return 0; -- cgit v1.2.3 From 5608bd3ed23e62bba96cc019030c742c78981b59 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 11 Nov 2013 15:21:01 -0700 Subject: ASoC: tegra: convert to standard DMA DT bindings By passing no flags when calling snd_dmaengine_pcm_register() from tegra_pcm.c, we end up using dma_request_slave_channel() rather than dmaengine_pcm_compat_request_channel(), and hence rely on the standard DMA DT bindings and stashing the DMA slave ID away during channel allocation. This means there's no need to use a custom DT property to store the slave ID. So, remove all the code that parsed it. Signed-off-by: Stephen Warren Acked-by: Mark Brown --- sound/soc/tegra/tegra20_ac97.c | 11 ----------- sound/soc/tegra/tegra20_i2s.c | 20 +------------------- sound/soc/tegra/tegra30_ahub.c | 23 ++++++----------------- sound/soc/tegra/tegra30_ahub.h | 9 ++++----- sound/soc/tegra/tegra30_i2s.c | 14 +++++++++----- sound/soc/tegra/tegra30_i2s.h | 3 +++ sound/soc/tegra/tegra_pcm.c | 17 ++++++++++++++--- sound/soc/tegra/tegra_pcm.h | 5 +++++ 8 files changed, 42 insertions(+), 60 deletions(-) (limited to 'sound/soc/tegra') diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c index ae27bcd586d2..d8b98d70ff41 100644 --- a/sound/soc/tegra/tegra20_ac97.c +++ b/sound/soc/tegra/tegra20_ac97.c @@ -313,7 +313,6 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev) { struct tegra20_ac97 *ac97; struct resource *mem; - u32 of_dma[2]; void __iomem *regs; int ret = 0; @@ -348,14 +347,6 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev) goto err_clk_put; } - if (of_property_read_u32_array(pdev->dev.of_node, - "nvidia,dma-request-selector", - of_dma, 2) < 0) { - dev_err(&pdev->dev, "No DMA resource\n"); - ret = -ENODEV; - goto err_clk_put; - } - ac97->reset_gpio = of_get_named_gpio(pdev->dev.of_node, "nvidia,codec-reset-gpio", 0); if (gpio_is_valid(ac97->reset_gpio)) { @@ -380,12 +371,10 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev) ac97->capture_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_RX1; ac97->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; ac97->capture_dma_data.maxburst = 4; - ac97->capture_dma_data.slave_id = of_dma[1]; ac97->playback_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_TX1; ac97->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; ac97->playback_dma_data.maxburst = 4; - ac97->playback_dma_data.slave_id = of_dma[1]; ret = tegra_asoc_utils_init(&ac97->util_data, &pdev->dev); if (ret) diff --git a/sound/soc/tegra/tegra20_i2s.c b/sound/soc/tegra/tegra20_i2s.c index 364bf6a907e1..1dc869c475e7 100644 --- a/sound/soc/tegra/tegra20_i2s.c +++ b/sound/soc/tegra/tegra20_i2s.c @@ -339,9 +339,7 @@ static const struct regmap_config tegra20_i2s_regmap_config = { static int tegra20_i2s_platform_probe(struct platform_device *pdev) { struct tegra20_i2s *i2s; - struct resource *mem, *memregion, *dmareq; - u32 of_dma[2]; - u32 dma_ch; + struct resource *mem, *memregion; void __iomem *regs; int ret; @@ -370,20 +368,6 @@ static int tegra20_i2s_platform_probe(struct platform_device *pdev) goto err_clk_put; } - dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0); - if (!dmareq) { - if (of_property_read_u32_array(pdev->dev.of_node, - "nvidia,dma-request-selector", - of_dma, 2) < 0) { - dev_err(&pdev->dev, "No DMA resource\n"); - ret = -ENODEV; - goto err_clk_put; - } - dma_ch = of_dma[1]; - } else { - dma_ch = dmareq->start; - } - memregion = devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem), DRV_NAME); if (!memregion) { @@ -410,12 +394,10 @@ static int tegra20_i2s_platform_probe(struct platform_device *pdev) i2s->capture_dma_data.addr = mem->start + TEGRA20_I2S_FIFO2; i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; i2s->capture_dma_data.maxburst = 4; - i2s->capture_dma_data.slave_id = dma_ch; i2s->playback_dma_data.addr = mem->start + TEGRA20_I2S_FIFO1; i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; i2s->playback_dma_data.maxburst = 4; - i2s->playback_dma_data.slave_id = dma_ch; pm_runtime_enable(&pdev->dev); if (!pm_runtime_enabled(&pdev->dev)) { diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c index 7d146e6b7038..342cd4fff0a5 100644 --- a/sound/soc/tegra/tegra30_ahub.c +++ b/sound/soc/tegra/tegra30_ahub.c @@ -95,8 +95,8 @@ static int tegra30_ahub_runtime_resume(struct device *dev) } int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, - dma_addr_t *fiforeg, - unsigned int *reqsel) + char *dmachan, int dmachan_len, + dma_addr_t *fiforeg) { int channel; u32 reg, val; @@ -110,9 +110,9 @@ int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, __set_bit(channel, ahub->rx_usage); *rxcif = TEGRA30_AHUB_RXCIF_APBIF_RX0 + channel; + snprintf(dmachan, dmachan_len, "rx%d", channel); *fiforeg = ahub->apbif_addr + TEGRA30_AHUB_CHANNEL_RXFIFO + (channel * TEGRA30_AHUB_CHANNEL_RXFIFO_STRIDE); - *reqsel = ahub->dma_sel + channel; pm_runtime_get_sync(ahub->dev); @@ -197,8 +197,8 @@ int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif) EXPORT_SYMBOL_GPL(tegra30_ahub_free_rx_fifo); int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, - dma_addr_t *fiforeg, - unsigned int *reqsel) + char *dmachan, int dmachan_len, + dma_addr_t *fiforeg) { int channel; u32 reg, val; @@ -212,9 +212,9 @@ int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, __set_bit(channel, ahub->tx_usage); *txcif = TEGRA30_AHUB_TXCIF_APBIF_TX0 + channel; + snprintf(dmachan, dmachan_len, "tx%d", channel); *fiforeg = ahub->apbif_addr + TEGRA30_AHUB_CHANNEL_TXFIFO + (channel * TEGRA30_AHUB_CHANNEL_TXFIFO_STRIDE); - *reqsel = ahub->dma_sel + channel; pm_runtime_get_sync(ahub->dev); @@ -510,7 +510,6 @@ static int tegra30_ahub_probe(struct platform_device *pdev) struct reset_control *rst; int i; struct resource *res0, *res1, *region; - u32 of_dma[2]; void __iomem *regs_apbif, *regs_ahub; int ret = 0; @@ -573,16 +572,6 @@ static int tegra30_ahub_probe(struct platform_device *pdev) goto err_clk_put_d_audio; } - if (of_property_read_u32_array(pdev->dev.of_node, - "nvidia,dma-request-selector", - of_dma, 2) < 0) { - dev_err(&pdev->dev, - "Missing property nvidia,dma-request-selector\n"); - ret = -ENODEV; - goto err_clk_put_d_audio; - } - ahub->dma_sel = of_dma[1]; - res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res0) { dev_err(&pdev->dev, "No apbif memory resource\n"); diff --git a/sound/soc/tegra/tegra30_ahub.h b/sound/soc/tegra/tegra30_ahub.h index 1383f8cd3572..fd7ba75ed814 100644 --- a/sound/soc/tegra/tegra30_ahub.h +++ b/sound/soc/tegra/tegra30_ahub.h @@ -465,15 +465,15 @@ enum tegra30_ahub_rxcif { }; extern int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, - dma_addr_t *fiforeg, - unsigned int *reqsel); + char *dmachan, int dmachan_len, + dma_addr_t *fiforeg); extern int tegra30_ahub_enable_rx_fifo(enum tegra30_ahub_rxcif rxcif); extern int tegra30_ahub_disable_rx_fifo(enum tegra30_ahub_rxcif rxcif); extern int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif); extern int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, - dma_addr_t *fiforeg, - unsigned int *reqsel); + char *dmachan, int dmachan_len, + dma_addr_t *fiforeg); extern int tegra30_ahub_enable_tx_fifo(enum tegra30_ahub_txcif txcif); extern int tegra30_ahub_disable_tx_fifo(enum tegra30_ahub_txcif txcif); extern int tegra30_ahub_free_tx_fifo(enum tegra30_ahub_txcif txcif); @@ -524,7 +524,6 @@ struct tegra30_ahub { struct device *dev; struct clk *clk_d_audio; struct clk *clk_apbif; - int dma_sel; resource_size_t apbif_addr; struct regmap *regmap_apbif; struct regmap *regmap_ahub; diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c index 531a1ff2101d..362e8f728ddf 100644 --- a/sound/soc/tegra/tegra30_i2s.c +++ b/sound/soc/tegra/tegra30_i2s.c @@ -459,8 +459,9 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev) i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; i2s->playback_dma_data.maxburst = 4; ret = tegra30_ahub_allocate_tx_fifo(&i2s->playback_fifo_cif, - &i2s->playback_dma_data.addr, - &i2s->playback_dma_data.slave_id); + i2s->playback_dma_chan, + sizeof(i2s->playback_dma_chan), + &i2s->playback_dma_data.addr); if (ret) { dev_err(&pdev->dev, "Could not alloc TX FIFO: %d\n", ret); goto err_suspend; @@ -475,8 +476,9 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev) i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; i2s->capture_dma_data.maxburst = 4; ret = tegra30_ahub_allocate_rx_fifo(&i2s->capture_fifo_cif, - &i2s->capture_dma_data.addr, - &i2s->capture_dma_data.slave_id); + i2s->capture_dma_chan, + sizeof(i2s->capture_dma_chan), + &i2s->capture_dma_data.addr); if (ret) { dev_err(&pdev->dev, "Could not alloc RX FIFO: %d\n", ret); goto err_unroute_tx_fifo; @@ -496,7 +498,9 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev) goto err_unroute_rx_fifo; } - ret = tegra_pcm_platform_register(&pdev->dev); + ret = tegra_pcm_platform_register_with_chan_names(&pdev->dev, + &i2s->dma_config, i2s->playback_dma_chan, + i2s->capture_dma_chan); if (ret) { dev_err(&pdev->dev, "Could not register PCM: %d\n", ret); goto err_unregister_component; diff --git a/sound/soc/tegra/tegra30_i2s.h b/sound/soc/tegra/tegra30_i2s.h index 4d0b0a30dbfb..774fc6ad2026 100644 --- a/sound/soc/tegra/tegra30_i2s.h +++ b/sound/soc/tegra/tegra30_i2s.h @@ -238,11 +238,14 @@ struct tegra30_i2s { struct clk *clk_i2s; enum tegra30_ahub_txcif capture_i2s_cif; enum tegra30_ahub_rxcif capture_fifo_cif; + char capture_dma_chan[8]; struct snd_dmaengine_dai_dma_data capture_dma_data; enum tegra30_ahub_rxcif playback_i2s_cif; enum tegra30_ahub_txcif playback_fifo_cif; + char playback_dma_chan[8]; struct snd_dmaengine_dai_dma_data playback_dma_data; struct regmap *regmap; + struct snd_dmaengine_pcm_config dma_config; }; #endif diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c index 7b2d23ba69b3..7ce5c334a660 100644 --- a/sound/soc/tegra/tegra_pcm.c +++ b/sound/soc/tegra/tegra_pcm.c @@ -61,12 +61,23 @@ static const struct snd_dmaengine_pcm_config tegra_dmaengine_pcm_config = { int tegra_pcm_platform_register(struct device *dev) { - return snd_dmaengine_pcm_register(dev, &tegra_dmaengine_pcm_config, - SND_DMAENGINE_PCM_FLAG_NO_DT | - SND_DMAENGINE_PCM_FLAG_COMPAT); + return snd_dmaengine_pcm_register(dev, &tegra_dmaengine_pcm_config, 0); } EXPORT_SYMBOL_GPL(tegra_pcm_platform_register); +int tegra_pcm_platform_register_with_chan_names(struct device *dev, + struct snd_dmaengine_pcm_config *config, + char *txdmachan, char *rxdmachan) +{ + *config = tegra_dmaengine_pcm_config; + config->dma_dev = dev->parent; + config->chan_names[0] = txdmachan; + config->chan_names[1] = rxdmachan; + + return snd_dmaengine_pcm_register(dev, config, 0); +} +EXPORT_SYMBOL_GPL(tegra_pcm_platform_register_with_chan_names); + void tegra_pcm_platform_unregister(struct device *dev) { return snd_dmaengine_pcm_unregister(dev); diff --git a/sound/soc/tegra/tegra_pcm.h b/sound/soc/tegra/tegra_pcm.h index 68ad901714a9..7883dec748a3 100644 --- a/sound/soc/tegra/tegra_pcm.h +++ b/sound/soc/tegra/tegra_pcm.h @@ -31,7 +31,12 @@ #ifndef __TEGRA_PCM_H__ #define __TEGRA_PCM_H__ +struct snd_dmaengine_pcm_config; + int tegra_pcm_platform_register(struct device *dev); +int tegra_pcm_platform_register_with_chan_names(struct device *dev, + struct snd_dmaengine_pcm_config *config, + char *txdmachan, char *rxdmachan); void tegra_pcm_platform_unregister(struct device *dev); #endif -- cgit v1.2.3 From f1d6ff7939b4444079170adc2bba1f551e7f65ea Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 4 Dec 2013 11:13:01 -0700 Subject: ASoC: tegra: update module reset list for Tegra124 Tegra124 adds a number of extra modules into the configlink bus, which must be taken out of reset before the bus is used. Update the AHUB driver to know about these extra modules (the AHUB HW module hosts the configlink bus). Based-on-work-by: Arun Shamanna Lakshmi Based-on-work-by: Songhee Baek Signed-off-by: Stephen Warren Acked-by: Mark Brown --- This patch depends on "ASoC: tegra: use reset framework" to compile, which is ack'd and slated to go through a (large) topic branch in the Tegra tree. So, we can either: a) Merge that Tegra topic branch into the ASoC tree, then apply this. Note that I haven't created the topic branch yet, since I'm still waiting for DMA dependencies to be applied. b) Apply this change to the Tegra tree too. This change isn't directly related to the changes in the Tegra tree; it just makes use of the new reset controller feature that's introduced there. --- .../bindings/sound/nvidia,tegra30-ahub.txt | 9 +++++++++ sound/soc/tegra/tegra30_ahub.c | 20 ++++++++++++++++---- 2 files changed, 25 insertions(+), 4 deletions(-) (limited to 'sound/soc/tegra') diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra30-ahub.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra30-ahub.txt index 32de7ec789aa..946e2ac46091 100644 --- a/Documentation/devicetree/bindings/sound/nvidia,tegra30-ahub.txt +++ b/Documentation/devicetree/bindings/sound/nvidia,tegra30-ahub.txt @@ -30,6 +30,15 @@ Required properties: Tegra114 and later additionally require: - amx - adx + Tegra124 and later additionally require: + - amx1 + - adx1 + - afc0 + - afc1 + - afc2 + - afc3 + - afc4 + - afc5 - ranges : The bus address mapping for the configlink register bus. Can be empty since the mapping is 1:1. - dmas : Must contain an entry for each entry in clock-names. diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c index 342cd4fff0a5..d6f4c9940e0c 100644 --- a/sound/soc/tegra/tegra30_ahub.c +++ b/sound/soc/tegra/tegra30_ahub.c @@ -335,9 +335,13 @@ EXPORT_SYMBOL_GPL(tegra30_ahub_unset_rx_cif_source); #define MOD_LIST_MASK_TEGRA30 BIT(0) #define MOD_LIST_MASK_TEGRA114 BIT(1) +#define MOD_LIST_MASK_TEGRA124 BIT(2) #define MOD_LIST_MASK_TEGRA30_OR_LATER \ - (MOD_LIST_MASK_TEGRA30 | MOD_LIST_MASK_TEGRA114) + (MOD_LIST_MASK_TEGRA30 | MOD_LIST_MASK_TEGRA114 | \ + MOD_LIST_MASK_TEGRA124) +#define MOD_LIST_MASK_TEGRA114_OR_LATER \ + (MOD_LIST_MASK_TEGRA114 | MOD_LIST_MASK_TEGRA124) static const struct { const char *rst_name; @@ -352,8 +356,16 @@ static const struct { { "dam1", MOD_LIST_MASK_TEGRA30_OR_LATER }, { "dam2", MOD_LIST_MASK_TEGRA30_OR_LATER }, { "spdif", MOD_LIST_MASK_TEGRA30_OR_LATER }, - { "amx", MOD_LIST_MASK_TEGRA114 }, - { "adx", MOD_LIST_MASK_TEGRA114 }, + { "amx", MOD_LIST_MASK_TEGRA114_OR_LATER }, + { "adx", MOD_LIST_MASK_TEGRA114_OR_LATER }, + { "amx1", MOD_LIST_MASK_TEGRA124 }, + { "adx1", MOD_LIST_MASK_TEGRA124 }, + { "afc0", MOD_LIST_MASK_TEGRA124 }, + { "afc1", MOD_LIST_MASK_TEGRA124 }, + { "afc2", MOD_LIST_MASK_TEGRA124 }, + { "afc3", MOD_LIST_MASK_TEGRA124 }, + { "afc4", MOD_LIST_MASK_TEGRA124 }, + { "afc5", MOD_LIST_MASK_TEGRA124 }, }; #define LAST_REG(name) \ @@ -492,7 +504,7 @@ static struct tegra30_ahub_soc_data soc_data_tegra114 = { }; static struct tegra30_ahub_soc_data soc_data_tegra124 = { - .mod_list_mask = MOD_LIST_MASK_TEGRA114, + .mod_list_mask = MOD_LIST_MASK_TEGRA124, .set_audio_cif = tegra124_ahub_set_cif, }; -- cgit v1.2.3