Platform_Device_Alloc Soc-Audio

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Platform Devices and Drivers — The Linux ... - Linux kernel

https://www.kernel.org/doc/html/latest/driver-api/driver-model/platform.html

Platform devices ¶. Platform devices are devices that typically appear as autonomous entities in the system. This includes legacy port-based devices and host bridges to peripheral buses, and most controllers integrated into system-on-chip platforms. What they usually have in common is direct addressing from a CPU bus.

platform_device_alloc identifier - Linux source code (v5 ...

https://elixir.bootlin.com/linux/latest/ident/platform_device_alloc

Defined in 1 files as a prototype: include/linux/platform_device.h, line 194 (as a prototype). Defined in 1 files as a function: drivers/base/platform.c, line 571 (as ...

c - platform devices; why 'alloc' and 'add'? - Stack Overflow

https://stackoverflow.com/questions/21011575/platform-devices-why-alloc-and-add

platform_device_alloc () means "create a platform device"; and platform_device_add () means "add a platform device to device hierarchy", so I'm just curious to know, why do you need both? c linux kernel linux-device-driver device-driver. Share. Follow this question to receive notifications. edited Jan 9 '14 at 5:55.

Add the missing platform_device_put() and platform_device ...

https://lkml.org/lkml/2022/1/26/415

Add the missing platform_device_put() and platform_device_del() before return from pcm030_fabric_probe in the error handling case. Fixes: c912fa913446 ("ASoC: fsl ...

linux-3.0.35-imx6/imx-cs42888.c at master · …

https://github.com/embeddedarm/linux-3.0.35-imx6/blob/master/sound/soc/imx/imx-cs42888.c

imx_3stack_snd_device = platform_device_alloc (" soc-audio ", 2); if (!imx_3stack_snd_device) goto err_device_alloc; platform_set_drvdata (imx_3stack_snd_device, &snd_soc_card_imx_3stack); ret = platform_device_add (imx_3stack_snd_device); if (0 == ret) goto exit; platform_device_unregister (imx_3stack_snd_device); err_device_alloc:

Issue in using MCASP1 on DM8148 Platform - Processors ...

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/255120/issue-in-using-mcasp1-on-dm8148-platform

static struct platform_device *ti81xx_pdev2; 4) /* Created the sound card */ ti81xx_pdev2 = platform_device_alloc("soc-audio", 2); if (!ti81xx_pdev2) { platform_device_put(ti81xx_pdev0); platform_device_put(ti81xx_pdev1); return -ENOMEM; } platform_set_drvdata(ti81xx_pdev2, &ti81xx_ds3_snd_card2); ret = platform_device_add(ti81xx_pdev2); if (ret)

LKML: Greg Kroah-Hartman: [PATCH 4.19 77/86] ASoC: fsl ...

https://lkml.org/lkml/2022/2/7/552

[email protected]

tvp5158 音频驱动，在内核2.6.32-rt版本上移值后，启动找不 …

https://e2echina.ti.com/support/processors/f/processors-forum/84859/tvp5158-2-6-32-rt-alsa-device-list-no-soundcards-found

Other Parts Discussed in Thread: TVP5158 tvp5158 音频驱动，在内核2.6.32-rt版本上移值后，启动找不到 ALSA device list: No soundcards found. 我移植的是DM365_DVR_DVSDK3_00.02.00.00下的tvp5158_audio

sample_alsa_soc_driver/sample-device.c at master ... - …

https://github.com/katsuster/sample_alsa_soc_driver/blob/master/sample-device.c

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