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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-13 19:51:23 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-13 19:51:23 (GMT) |
commit | 046e7d685bc370fd4c879ab6635ad3f69e6673d1 (patch) | |
tree | 36b981f8d1f2bfd348c1479acbe3a9426d35c377 /drivers/misc | |
parent | fe504c5c745aeb767d978fbedeb94775fd4cb69c (diff) | |
parent | 6eb827d23577a4efec2b10a9c4cc9ded268a1d1c (diff) | |
download | linux-046e7d685bc370fd4c879ab6635ad3f69e6673d1.tar.xz |
Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This update contains a fairly wide range of changes all over in sound
subdirectory, mainly because of UAPI header moves by David and __dev*
annotation removals by Bill. Other highlights are:
- Introduced the support for wallclock timestamps in ALSA PCM core
- Add the poll loop implementation for HD-audio jack detection
- Yet more VGA-switcheroo fixes for HD-audio
- New VIA HD-audio codec support
- More fixes on resource management in USB audio and MIDI drivers
- More quirks for USB-audio ASUS Xonar U3, Reloop Play, Focusrite,
Roland VG-99, etc
- Add support for FastTrack C400 usb-audio
- Clean ups in many drivers regarding firmware loading
- Add PSC724 Ultiimate Edge support to ice1712
- A few hdspm driver updates
- New Stanton SCS.1d/1m FireWire driver
- Standardisation of the logging in ASoC codes
- DT and dmaengine support for ASoC Atmel
- Support for Wolfson ADSP cores
- New drivers for Freescale/iVeia P1022 and Maxim MAX98090
- Lots of other ASoC driver fixes and developments"
Fix up trivial conflicts. And go out on a limb and assume the dts file
'status' field of one of the conflicting things was supposed to be
"disabled", not "disable" like in pretty much all other cases.
* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (341 commits)
ALSA: hda - Move runtime PM check to runtime_idle callback
ALSA: hda - Add stereo-dmic fixup for Acer Aspire One 522
ALSA: hda - Avoid doubly suspend after vga switcheroo
ALSA: usb-audio: Enable S/PDIF on the ASUS Xonar U3
ALSA: hda - Check validity of CORB/RIRB WP reads
ALSA: hda - use usleep_range in link reset and change timeout check
ALSA: HDA: VIA: Add support for codec VT1808.
ALSA: HDA: VIA Add support for codec VT1705CF.
ASoC: codecs: remove __dev* attributes
ASoC: utils: remove __dev* attributes
ASoC: ux500: remove __dev* attributes
ASoC: txx9: remove __dev* attributes
ASoC: tegra: remove __dev* attributes
ASoC: spear: remove __dev* attributes
ASoC: sh: remove __dev* attributes
ASoC: s6000: remove __dev* attributes
ASoC: OMAP: remove __dev* attributes
ASoC: nuc900: remove __dev* attributes
ASoC: mxs: remove __dev* attributes
ASoC: kirkwood: remove __dev* attributes
...
Diffstat (limited to 'drivers/misc')
-rw-r--r-- | drivers/misc/atmel-ssc.c | 135 |
1 files changed, 88 insertions, 47 deletions
diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c index c58f9ab..158da5a 100644 --- a/drivers/misc/atmel-ssc.c +++ b/drivers/misc/atmel-ssc.c @@ -18,6 +18,8 @@ #include <linux/slab.h> #include <linux/module.h> +#include <linux/of.h> + /* Serialize access to ssc_list and user count */ static DEFINE_SPINLOCK(user_lock); static LIST_HEAD(ssc_list); @@ -29,7 +31,13 @@ struct ssc_device *ssc_request(unsigned int ssc_num) spin_lock(&user_lock); list_for_each_entry(ssc, &ssc_list, list) { - if (ssc->pdev->id == ssc_num) { + if (ssc->pdev->dev.of_node) { + if (of_alias_get_id(ssc->pdev->dev.of_node, "ssc") + == ssc_num) { + ssc_valid = 1; + break; + } + } else if (ssc->pdev->id == ssc_num) { ssc_valid = 1; break; } @@ -68,39 +76,93 @@ void ssc_free(struct ssc_device *ssc) } EXPORT_SYMBOL(ssc_free); -static int __init ssc_probe(struct platform_device *pdev) +static struct atmel_ssc_platform_data at91rm9200_config = { + .use_dma = 0, +}; + +static struct atmel_ssc_platform_data at91sam9g45_config = { + .use_dma = 1, +}; + +static const struct platform_device_id atmel_ssc_devtypes[] = { + { + .name = "at91rm9200_ssc", + .driver_data = (unsigned long) &at91rm9200_config, + }, { + .name = "at91sam9g45_ssc", + .driver_data = (unsigned long) &at91sam9g45_config, + }, { + /* sentinel */ + } +}; + +#ifdef CONFIG_OF +static const struct of_device_id atmel_ssc_dt_ids[] = { + { + .compatible = "atmel,at91rm9200-ssc", + .data = &at91rm9200_config, + }, { + .compatible = "atmel,at91sam9g45-ssc", + .data = &at91sam9g45_config, + }, { + /* sentinel */ + } +}; +MODULE_DEVICE_TABLE(of, atmel_ssc_dt_ids); +#endif + +static inline const struct atmel_ssc_platform_data * __init + atmel_ssc_get_driver_data(struct platform_device *pdev) +{ + if (pdev->dev.of_node) { + const struct of_device_id *match; + match = of_match_node(atmel_ssc_dt_ids, pdev->dev.of_node); + if (match == NULL) + return NULL; + return match->data; + } + + return (struct atmel_ssc_platform_data *) + platform_get_device_id(pdev)->driver_data; +} + +static int ssc_probe(struct platform_device *pdev) { - int retval = 0; struct resource *regs; struct ssc_device *ssc; + const struct atmel_ssc_platform_data *plat_dat; - ssc = kzalloc(sizeof(struct ssc_device), GFP_KERNEL); + ssc = devm_kzalloc(&pdev->dev, sizeof(struct ssc_device), GFP_KERNEL); if (!ssc) { dev_dbg(&pdev->dev, "out of memory\n"); - retval = -ENOMEM; - goto out; + return -ENOMEM; } + ssc->pdev = pdev; + + plat_dat = atmel_ssc_get_driver_data(pdev); + if (!plat_dat) + return -ENODEV; + ssc->pdata = (struct atmel_ssc_platform_data *)plat_dat; + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!regs) { dev_dbg(&pdev->dev, "no mmio resource defined\n"); - retval = -ENXIO; - goto out_free; + return -ENXIO; } - ssc->clk = clk_get(&pdev->dev, "pclk"); - if (IS_ERR(ssc->clk)) { - dev_dbg(&pdev->dev, "no pclk clock defined\n"); - retval = -ENXIO; - goto out_free; - } - - ssc->pdev = pdev; - ssc->regs = ioremap(regs->start, resource_size(regs)); + ssc->regs = devm_request_and_ioremap(&pdev->dev, regs); if (!ssc->regs) { dev_dbg(&pdev->dev, "ioremap failed\n"); - retval = -EINVAL; - goto out_clk; + return -EINVAL; + } + + ssc->phybase = regs->start; + + ssc->clk = devm_clk_get(&pdev->dev, "pclk"); + if (IS_ERR(ssc->clk)) { + dev_dbg(&pdev->dev, "no pclk clock defined\n"); + return -ENXIO; } /* disable all interrupts */ @@ -112,8 +174,7 @@ static int __init ssc_probe(struct platform_device *pdev) ssc->irq = platform_get_irq(pdev, 0); if (!ssc->irq) { dev_dbg(&pdev->dev, "could not get irq\n"); - retval = -ENXIO; - goto out_unmap; + return -ENXIO; } spin_lock(&user_lock); @@ -125,16 +186,7 @@ static int __init ssc_probe(struct platform_device *pdev) dev_info(&pdev->dev, "Atmel SSC device at 0x%p (irq %d)\n", ssc->regs, ssc->irq); - goto out; - -out_unmap: - iounmap(ssc->regs); -out_clk: - clk_put(ssc->clk); -out_free: - kfree(ssc); -out: - return retval; + return 0; } static int ssc_remove(struct platform_device *pdev) @@ -142,34 +194,23 @@ static int ssc_remove(struct platform_device *pdev) struct ssc_device *ssc = platform_get_drvdata(pdev); spin_lock(&user_lock); - iounmap(ssc->regs); - clk_put(ssc->clk); list_del(&ssc->list); - kfree(ssc); spin_unlock(&user_lock); return 0; } static struct platform_driver ssc_driver = { - .remove = ssc_remove, .driver = { .name = "ssc", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(atmel_ssc_dt_ids), }, + .id_table = atmel_ssc_devtypes, + .probe = ssc_probe, + .remove = ssc_remove, }; - -static int __init ssc_init(void) -{ - return platform_driver_probe(&ssc_driver, ssc_probe); -} -module_init(ssc_init); - -static void __exit ssc_exit(void) -{ - platform_driver_unregister(&ssc_driver); -} -module_exit(ssc_exit); +module_platform_driver(ssc_driver); MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); MODULE_DESCRIPTION("SSC driver for Atmel AVR32 and AT91"); |