/* * bf6xx_sport - Analog Devices BF6XX SPORT driver * * Copyright (c) 2012 Analog Devices Inc. * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _BF6XX_SPORT_H_ #define _BF6XX_SPORT_H_ #include #include struct sport_device { struct platform_device *pdev; const unsigned short *pin_req; struct sport_register *tx_regs; struct sport_register *rx_regs; int tx_dma_chan; int rx_dma_chan; int tx_err_irq; int rx_err_irq; void (*tx_callback)(void *data); void *tx_data; void (*rx_callback)(void *data); void *rx_data; struct dmasg *tx_desc; struct dmasg *rx_desc; unsigned int tx_desc_size; unsigned int rx_desc_size; unsigned char *tx_buf; unsigned char *rx_buf; unsigned int tx_fragsize; unsigned int rx_fragsize; unsigned int tx_frags; unsigned int rx_frags; unsigned int wdsize; }; struct sport_params { u32 spctl; u32 div; }; struct sport_device *sport_create(struct platform_device *pdev); void sport_delete(struct sport_device *sport); int sport_set_tx_params(struct sport_device *sport, struct sport_params *params); int sport_set_rx_params(struct sport_device *sport, struct sport_params *params); void sport_tx_start(struct sport_device *sport); void sport_rx_start(struct sport_device *sport); void sport_tx_stop(struct sport_device *sport); void sport_rx_stop(struct sport_device *sport); void sport_set_tx_callback(struct sport_device *sport, void (*tx_callback)(void *), void *tx_data); void sport_set_rx_callback(struct sport_device *sport, void (*rx_callback)(void *), void *rx_data); int sport_config_tx_dma(struct sport_device *sport, void *buf, int fragcount, size_t fragsize); int sport_config_rx_dma(struct sport_device *sport, void *buf, int fragcount, size_t fragsize); unsigned long sport_curr_offset_tx(struct sport_device *sport); unsigned long sport_curr_offset_rx(struct sport_device *sport); #endif ue='e6e7b48b295afa5a5ab440de0a94d9ad8b3ce2d0'/>
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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 /tools/arch/s390/include
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 'tools/arch/s390/include')