Platform Device Alloc Soc Audio

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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.

Platform Devices and Drivers — The 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.

C++ (Cpp) platform_device_alloc Examples - HotExamples

https://cpp.hotexamples.com/examples/-/-/platform_device_alloc/cpp-platform_device_alloc-function-examples.html

C++ (Cpp) platform_device_alloc Examples. C++ (Cpp) platform_device_alloc - 30 examples found. These are the top rated real world C++ (Cpp) examples of platform_device_alloc extracted from open source projects. You can rate examples to help us improve the quality of examples. Programming Language: C++ (Cpp) Method/Function: platform_device_alloc.

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 ...

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 ...

ASoC: Supporting Audio on an Embedded Board

https://elinux.org/images/b/b5/Belloni-alsa-asoc.pdf

ASoC, ALSA System on Chip: is a Linux kernel subsystem created to provide better ALSA support for system-on-chip and portable audio codecs. It allows to reuse codec drivers across multiple architectures and provides an API to integrate them with the SoC audio interface. created for that use case designed for codec drivers reuse

ASoC Platform Driver — The Linux Kernel documentation

https://www.kernel.org/doc/html/v4.11/sound/soc/platform.html

ASoC Platform Driver¶. An ASoC platform driver class can be divided into audio DMA drivers, SoC DAI drivers and DSP drivers. The platform drivers only target the SoC CPU and must have no board specific code.

ASoC: omap: convert per-board modules to platform drivers ...

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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)

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