/* * linux/drivers/video/sa1100fb.h * -- StrongARM 1100 LCD Controller Frame Buffer Device * * Copyright (C) 1999 Eric A. Thomas * Based on acornfb.c Copyright (C) Russell King. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive * for more details. */ #define LCCR0 0x0000 /* LCD Control Reg. 0 */ #define LCSR 0x0004 /* LCD Status Reg. */ #define DBAR1 0x0010 /* LCD DMA Base Address Reg. channel 1 */ #define DCAR1 0x0014 /* LCD DMA Current Address Reg. channel 1 */ #define DBAR2 0x0018 /* LCD DMA Base Address Reg. channel 2 */ #define DCAR2 0x001C /* LCD DMA Current Address Reg. channel 2 */ #define LCCR1 0x0020 /* LCD Control Reg. 1 */ #define LCCR2 0x0024 /* LCD Control Reg. 2 */ #define LCCR3 0x0028 /* LCD Control Reg. 3 */ /* Shadows for LCD controller registers */ struct sa1100fb_lcd_reg { unsigned long lccr0; unsigned long lccr1; unsigned long lccr2; unsigned long lccr3; }; struct sa1100fb_info { struct fb_info fb; struct device *dev; const struct sa1100fb_rgb *rgb[NR_RGB]; void __iomem *base; /* * These are the addresses we mapped * the framebuffer memory region to. */ dma_addr_t map_dma; u_char * map_cpu; u_int map_size; u_char * screen_cpu; dma_addr_t screen_dma; u16 * palette_cpu; dma_addr_t palette_dma; u_int palette_size; dma_addr_t dbar1; dma_addr_t dbar2; u_int reg_lccr0; u_int reg_lccr1; u_int reg_lccr2; u_int reg_lccr3; volatile u_char state; volatile u_char task_state; struct mutex ctrlr_lock; wait_queue_head_t ctrlr_wait; struct work_struct task; #ifdef CONFIG_CPU_FREQ struct notifier_block freq_transition; struct notifier_block freq_policy; #endif const struct sa1100fb_mach_info *inf; struct clk *clk; }; #define TO_INF(ptr,member) container_of(ptr,struct sa1100fb_info,member) #define SA1100_PALETTE_MODE_VAL(bpp) (((bpp) & 0x018) << 9) /* * These are the actions for set_ctrlr_state */ #define C_DISABLE (0) #define C_ENABLE (1) #define C_DISABLE_CLKCHANGE (2) #define C_ENABLE_CLKCHANGE (3) #define C_REENABLE (4) #define C_DISABLE_PM (5) #define C_ENABLE_PM (6) #define C_STARTUP (7) #define SA1100_NAME "SA1100" /* * Minimum X and Y resolutions */ #define MIN_XRES 64 #define MIN_YRES 64 '7a7b5df84b6b4e5d599c7289526eed96541a0654'/>
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /tools/testing/selftests/rcutorture/doc/rcu-test-image.txt
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'tools/testing/selftests/rcutorture/doc/rcu-test-image.txt')