/* * include/media/i2c/lm3560.h * * Copyright (C) 2013 Texas Instruments * * Contact: Daniel Jeong * Ldd-Mlp * * 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., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #ifndef __LM3560_H__ #define __LM3560_H__ #include #define LM3560_NAME "lm3560" #define LM3560_I2C_ADDR (0x53) /* FLASH Brightness * min 62500uA, step 62500uA, max 1000000uA */ #define LM3560_FLASH_BRT_MIN 62500 #define LM3560_FLASH_BRT_STEP 62500 #define LM3560_FLASH_BRT_MAX 1000000 #define LM3560_FLASH_BRT_uA_TO_REG(a) \ ((a) < LM3560_FLASH_BRT_MIN ? 0 : \ (((a) - LM3560_FLASH_BRT_MIN) / LM3560_FLASH_BRT_STEP)) #define LM3560_FLASH_BRT_REG_TO_uA(a) \ ((a) * LM3560_FLASH_BRT_STEP + LM3560_FLASH_BRT_MIN) /* FLASH TIMEOUT DURATION * min 32ms, step 32ms, max 1024ms */ #define LM3560_FLASH_TOUT_MIN 32 #define LM3560_FLASH_TOUT_STEP 32 #define LM3560_FLASH_TOUT_MAX 1024 #define LM3560_FLASH_TOUT_ms_TO_REG(a) \ ((a) < LM3560_FLASH_TOUT_MIN ? 0 : \ (((a) - LM3560_FLASH_TOUT_MIN) / LM3560_FLASH_TOUT_STEP)) #define LM3560_FLASH_TOUT_REG_TO_ms(a) \ ((a) * LM3560_FLASH_TOUT_STEP + LM3560_FLASH_TOUT_MIN) /* TORCH BRT * min 31250uA, step 31250uA, max 250000uA */ #define LM3560_TORCH_BRT_MIN 31250 #define LM3560_TORCH_BRT_STEP 31250 #define LM3560_TORCH_BRT_MAX 250000 #define LM3560_TORCH_BRT_uA_TO_REG(a) \ ((a) < LM3560_TORCH_BRT_MIN ? 0 : \ (((a) - LM3560_TORCH_BRT_MIN) / LM3560_TORCH_BRT_STEP)) #define LM3560_TORCH_BRT_REG_TO_uA(a) \ ((a) * LM3560_TORCH_BRT_STEP + LM3560_TORCH_BRT_MIN) enum lm3560_led_id { LM3560_LED0 = 0, LM3560_LED1, LM3560_LED_MAX }; enum lm3560_peak_current { LM3560_PEAK_1600mA = 0x00, LM3560_PEAK_2300mA = 0x20, LM3560_PEAK_3000mA = 0x40, LM3560_PEAK_3600mA = 0x60 }; /* struct lm3560_platform_data * * @peak : peak current * @max_flash_timeout: flash timeout * @max_flash_brt: flash mode led brightness * @max_torch_brt: torch mode led brightness */ struct lm3560_platform_data { enum lm3560_peak_current peak; u32 max_flash_timeout; u32 max_flash_brt[LM3560_LED_MAX]; u32 max_torch_brt[LM3560_LED_MAX]; }; #endif /* __LM3560_H__ */ c3b9b25'>root/drivers/usb/misc/emi62.c
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /drivers/usb/misc/emi62.c
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/usb/misc/emi62.c')