/* * wm_adsp.h -- Wolfson ADSP support * * Copyright 2012 Wolfson Microelectronics plc * * Author: Mark Brown * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __WM_ADSP_H #define __WM_ADSP_H #include #include #include #include "wmfw.h" /* Return values for wm_adsp_compr_handle_irq */ #define WM_ADSP_COMPR_OK 0 #define WM_ADSP_COMPR_VOICE_TRIGGER 1 struct wm_adsp_region { int type; unsigned int base; }; struct wm_adsp_alg_region { struct list_head list; unsigned int alg; int type; unsigned int base; }; struct wm_adsp_compr; struct wm_adsp_compr_buf; struct wm_adsp { const char *part; int num; int type; struct device *dev; struct regmap *regmap; struct snd_soc_codec *codec; int base; int sysclk_reg; int sysclk_mask; int sysclk_shift; struct list_head alg_regions; unsigned int fw_id; unsigned int fw_id_version; const struct wm_adsp_region *mem; int num_mems; int fw; int fw_ver; bool booted; bool running; struct list_head ctl_list; struct work_struct boot_work; struct wm_adsp_compr *compr; struct wm_adsp_compr_buf *buffer; struct mutex pwr_lock; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_root; char *wmfw_file_name; char *bin_file_name; #endif }; #define WM_ADSP1(wname, num) \ SND_SOC_DAPM_PGA_E(wname, SND_SOC_NOPM, num, 0, NULL, 0, \ wm_adsp1_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD) #define WM_ADSP2(wname, num, event_fn) \ { .id = snd_soc_dapm_supply, .name = wname " Preloader", \ .reg = SND_SOC_NOPM, .shift = num, .event = event_fn, \ .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD, \ .subseq = 100, /* Ensure we run after SYSCLK supply widget */ }, \ { .id = snd_soc_dapm_out_drv, .name = wname, \ .reg = SND_SOC_NOPM, .shift = num, .event = wm_adsp2_event, \ .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD } extern const struct snd_kcontrol_new wm_adsp_fw_controls[]; int wm_adsp1_init(struct wm_adsp *dsp); int wm_adsp2_init(struct wm_adsp *dsp); void wm_adsp2_remove(struct wm_adsp *dsp); int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec); int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec); int wm_adsp1_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); int wm_adsp2_early_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event, unsigned int freq); int wm_adsp2_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream); int wm_adsp_compr_free(struct snd_compr_stream *stream); int wm_adsp_compr_set_params(struct snd_compr_stream *stream, struct snd_compr_params *params); int wm_adsp_compr_get_caps(struct snd_compr_stream *stream, struct snd_compr_caps *caps); int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd); int wm_adsp_compr_handle_irq(struct wm_adsp *dsp); int wm_adsp_compr_pointer(struct snd_compr_stream *stream, struct snd_compr_tstamp *tstamp); int wm_adsp_compr_copy(struct snd_compr_stream *stream, char __user *buf, size_t count); #endif p.c
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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-01-12 17:15:56 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-01-30 10:17:32 +0100
commite6e7b48b295afa5a5ab440de0a94d9ad8b3ce2d0 (patch)
tree77cadb6d8aad1b52c34e4afa8c9deef603bbe2ed /drivers/usb/gadget/legacy/dbgp.c
parent4e5b54f127426c82dc2816340c26d951a5bb3429 (diff)
drm: Don't race connector registration
I was under the misconception that the sysfs dev stuff can be fully set up, and then registered all in one step with device_add. That's true for properties and property groups, but not for parents and child devices. Those must be fully registered before you can register a child. Add a bit of tracking to make sure that asynchronous mst connector hotplugging gets this right. For consistency we rely upon the implicit barriers of the connector->mutex, which is taken anyway, to ensure that at least either the connector or device registration call will work out. Mildly tested since I can't reliably reproduce this on my mst box here. Reported-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484237756-2720-1-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/usb/gadget/legacy/dbgp.c')