litmus-rt.git - The LITMUS^RT kernel.

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author	Linus Torvalds <torvalds@linux-foundation.org>	2010-10-26 21:57:59 -0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2010-10-26 21:57:59 -0400
commit	c48c43e422c1404fd72c57d1d21a6f6d01e18900 (patch)
tree	48e5d3828b4f5479361986535f71a1ae44e4f3c1 /include/linux/dynamic_debug.h
parent	520045db940a381d2bee1c1b2179f7921b40fb10 (diff)
parent	135cba0dc399fdd47bd3ae305c1db75fcd77243f (diff)

Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (476 commits) vmwgfx: Implement a proper GMR eviction mechanism drm/radeon/kms: fix r6xx/7xx 1D tiling CS checker v2 drm/radeon/kms: properly compute group_size on 6xx/7xx drm/radeon/kms: fix 2D tile height alignment in the r600 CS checker drm/radeon/kms/evergreen: set the clear state to the blit state drm/radeon/kms: don't poll dac load detect. gpu: Add Intel GMA500(Poulsbo) Stub Driver drm/radeon/kms: MC vram map needs to be >= pci aperture size drm/radeon/kms: implement display watermark support for evergreen drm/radeon/kms/evergreen: add some additional safe regs v2 drm/radeon/r600: fix tiling issues in CS checker. drm/i915: Move gpu_write_list to per-ring drm/i915: Invalidate the to-ring, flush the old-ring when updating domains drm/i915/ringbuffer: Write the value passed in to the tail register agp/intel: Restore valid PTE bit for Sandybridge after bdd3072 drm/i915: Fix flushing regression from 9af90d19f drm/i915/sdvo: Remove unused encoding member i915: enable AVI infoframe for intel_hdmi.c [v4] drm/i915: Fix current fb blocking for page flip drm/i915: IS_IRONLAKE is synonymous with gen == 5 ... Fix up conflicts in - drivers/gpu/drm/i915/{i915_gem.c, i915/intel_overlay.c}: due to the new simplified stack-based kmap_atomic() interface - drivers/gpu/drm/vmwgfx/vmwgfx_drv.c: added .llseek entry due to BKL removal cleanups.

Diffstat (limited to 'include/linux/dynamic_debug.h')

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/* * Simple driver for Texas Instruments LM355x LED Flash driver chip * Copyright (C) 2012 Texas Instruments * * 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. */ #include <linux/module.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/gpio.h> #include <linux/leds.h> #include <linux/slab.h> #include <linux/platform_device.h> #include <linux/fs.h> #include <linux/regmap.h> #include <linux/platform_data/leds-lm355x.h> enum lm355x_type { CHIP_LM3554 = 0, CHIP_LM3556, }; enum lm355x_regs { REG_FLAG = 0, REG_TORCH_CFG, REG_TORCH_CTRL, REG_STROBE_CFG, REG_FLASH_CTRL, REG_INDI_CFG, REG_INDI_CTRL, REG_OPMODE, REG_MAX, }; /* operation mode */ enum lm355x_mode { MODE_SHDN = 0, MODE_INDIC, MODE_TORCH, MODE_FLASH }; /* register map info. */ struct lm355x_reg_data { u8 regno; u8 mask; u8 shift; }; struct lm355x_chip_data { struct device *dev; enum lm355x_type type; struct led_classdev cdev_flash; struct led_classdev cdev_torch; struct led_classdev cdev_indicator; struct lm355x_platform_data *pdata; struct regmap *regmap; struct mutex lock; unsigned int last_flag; struct lm355x_reg_data *regs; }; /* specific indicator function for lm3556 */ enum lm3556_indic_pulse_time { PULSE_TIME_0_MS = 0, PULSE_TIME_32_MS, PULSE_TIME_64_MS, PULSE_TIME_92_MS, PULSE_TIME_128_MS, PULSE_TIME_160_MS, PULSE_TIME_196_MS, PULSE_TIME_224_MS, PULSE_TIME_256_MS, PULSE_TIME_288_MS, PULSE_TIME_320_MS, PULSE_TIME_352_MS, PULSE_TIME_384_MS, PULSE_TIME_416_MS, PULSE_TIME_448_MS, PULSE_TIME_480_MS, }; enum lm3556_indic_n_blank { INDIC_N_BLANK_0 = 0, INDIC_N_BLANK_1, INDIC_N_BLANK_2, INDIC_N_BLANK_3, INDIC_N_BLANK_4, INDIC_N_BLANK_5, INDIC_N_BLANK_6, INDIC_N_BLANK_7, INDIC_N_BLANK_8, INDIC_N_BLANK_9, INDIC_N_BLANK_10, INDIC_N_BLANK_11, INDIC_N_BLANK_12, INDIC_N_BLANK_13, INDIC_N_BLANK_14, INDIC_N_BLANK_15, }; enum lm3556_indic_period { INDIC_PERIOD_0 = 0, INDIC_PERIOD_1, INDIC_PERIOD_2, INDIC_PERIOD_3, INDIC_PERIOD_4, INDIC_PERIOD_5, INDIC_PERIOD_6, INDIC_PERIOD_7, }; #define INDIC_PATTERN_SIZE 4 struct indicator { u8 blinking; u8 period_cnt; }; /* indicator pattern data only for lm3556 */ static struct indicator indicator_pattern[INDIC_PATTERN_SIZE] = { [0] = {(INDIC_N_BLANK_1 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_1}, [1] = {(INDIC_N_BLANK_15 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_2}, [2] = {(INDIC_N_BLANK_10 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_4}, [3] = {(INDIC_N_BLANK_5 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_7}, }; static struct lm355x_reg_data lm3554_regs[REG_MAX] = { [REG_FLAG] = {0xD0, 0xBF, 0}, [REG_TORCH_CFG] = {0xE0, 0x80, 7}, [REG_TORCH_CTRL] = {0xA0, 0x38, 3}, [REG_STROBE_CFG] = {0xE0, 0x04, 2}, [REG_FLASH_CTRL] = {0xB0, 0x78, 3}, [REG_INDI_CFG] = {0xE0, 0x08, 3}, [REG_INDI_CTRL] = {0xA0, 0xC0, 6}, [REG_OPMODE] = {0xA0, 0x03, 0}, }; static struct lm355x_reg_data lm3556_regs[REG_MAX] = { [REG_FLAG] = {0x0B, 0xFF, 0}, [REG_TORCH_CFG] = {0x0A, 0x10, 4}, [REG_TORCH_CTRL] = {0x09, 0x70, 4}, [REG_STROBE_CFG] = {0x0A, 0x20, 5}, [REG_FLASH_CTRL] = {0x09, 0x0F, 0}, [REG_INDI_CFG] = {0xFF, 0xFF, 0}, [REG_INDI_CTRL] = {0x09, 0x70, 4}, [REG_OPMODE] = {0x0A, 0x03, 0}, }; static char lm355x_name[][I2C_NAME_SIZE] = { [CHIP_LM3554] = LM3554_NAME, [CHIP_LM3556] = LM3556_NAME, }; /* chip initialize */ static int lm355x_chip_init(struct lm355x_chip_data *chip) { int ret; unsigned int reg_val; struct lm355x_platform_data *pdata = chip->pdata; /* input and output pins configuration */ switch (chip->type) { case CHIP_LM3554: reg_val = pdata->pin_tx2 | pdata->ntc_pin; ret = regmap_update_bits(chip->regmap, 0xE0, 0x28, reg_val); if (ret < 0) goto out; reg_val = pdata->pass_mode; ret = regmap_update_bits(chip->regmap, 0xA0, 0x04, reg_val); if (ret < 0) goto out; break; case CHIP_LM3556: reg_val = pdata->pin_tx2 | pdata->ntc_pin | pdata->pass_mode; ret = regmap_update_bits(chip->regmap, 0x0A, 0xC4, reg_val); if (ret < 0) goto out; break; default: return -ENODATA; } return ret; out: dev_err(chip->dev, "%s:i2c access fail to register\n", __func__); return ret; } /* chip control */ static int lm355x_control(struct lm355x_chip_data *chip, u8 brightness, enum lm355x_mode opmode) { int ret; unsigned int reg_val; struct lm355x_platform_data *pdata = chip->pdata; struct lm355x_reg_data *preg = chip->regs; ret = regmap_read(chip->regmap, preg[REG_FLAG].regno, &chip->last_flag); if (ret < 0) goto out; if (chip->last_flag & preg[REG_FLAG].mask) dev_info(chip->dev, "%s Last FLAG is 0x%x\n", lm355x_name[chip->type], chip->last_flag & preg[REG_FLAG].mask); /* brightness 0 means shutdown */ if (!brightness) opmode = MODE_SHDN; switch (opmode) { case MODE_TORCH: ret = regmap_update_bits(chip->regmap, preg[REG_TORCH_CTRL].regno, preg[REG_TORCH_CTRL].mask, (brightness - 1) << preg[REG_TORCH_CTRL].shift); if (ret < 0) goto out; if (pdata->pin_tx1 != LM355x_PIN_TORCH_DISABLE) { ret = regmap_update_bits(chip->regmap, preg[REG_TORCH_CFG].regno, preg[REG_TORCH_CFG].mask, 0x01 << preg[REG_TORCH_CFG].shift); if (ret < 0) goto out; opmode = MODE_SHDN; dev_info(chip->dev, "torch brt is set - ext. torch pin mode\n"); } break; case MODE_FLASH: ret = regmap_update_bits(chip->regmap, preg[REG_FLASH_CTRL].regno, preg[REG_FLASH_CTRL].mask, (brightness - 1) << preg[REG_FLASH_CTRL].shift); if (ret < 0) goto out; if (pdata->pin_strobe != LM355x_PIN_STROBE_DISABLE) { if (chip->type == CHIP_LM3554) reg_val = 0x00; else reg_val = 0x01; ret = regmap_update_bits(chip->regmap, preg[REG_STROBE_CFG].regno, preg[REG_STROBE_CFG].mask, reg_val << preg[REG_STROBE_CFG].shift); if (ret < 0) goto out; opmode = MODE_SHDN; dev_info(chip->dev, "flash brt is set - ext. strobe pin mode\n"); } break; case MODE_INDIC: ret = regmap_update_bits(chip->regmap, preg[REG_INDI_CTRL].regno, preg[REG_INDI_CTRL].mask, (brightness - 1) << preg[REG_INDI_CTRL].shift); if (ret < 0) goto out; if (pdata->pin_tx2 != LM355x_PIN_TX_DISABLE) { ret = regmap_update_bits(chip->regmap, preg[REG_INDI_CFG].regno, preg[REG_INDI_CFG].mask, 0x01 << preg[REG_INDI_CFG].shift); if (ret < 0) goto out; opmode = MODE_SHDN; } break; case MODE_SHDN: break; default: return -EINVAL; } /* operation mode control */ ret = regmap_update_bits(chip->regmap, preg[REG_OPMODE].regno, preg[REG_OPMODE].mask, opmode << preg[REG_OPMODE].shift); if (ret < 0) goto out; return ret; out: dev_err(chip->dev, "%s:i2c access fail to register\n", __func__); return ret; } /* torch */ static int lm355x_torch_brightness_set(struct led_classdev *cdev, enum led_brightness brightness) { struct lm355x_chip_data *chip = container_of(cdev, struct lm355x_chip_data, cdev_torch); int ret; mutex_lock(&chip->lock); ret = lm355x_control(chip, brightness, MODE_TORCH); mutex_unlock(&chip->lock); return ret; } /* flash */ static int lm355x_strobe_brightness_set(struct led_classdev *cdev, enum led_brightness brightness) { struct lm355x_chip_data *chip = container_of(cdev, struct lm355x_chip_data, cdev_flash); int ret; mutex_lock(&chip->lock); ret = lm355x_control(chip, brightness, MODE_FLASH); mutex_unlock(&chip->lock); return ret; } /* indicator */ static int lm355x_indicator_brightness_set(struct led_classdev *cdev, enum led_brightness brightness) { struct lm355x_chip_data *chip = container_of(cdev, struct lm355x_chip_data, cdev_indicator); int ret; mutex_lock(&chip->lock); ret = lm355x_control(chip, brightness, MODE_INDIC); mutex_unlock(&chip->lock); return ret; } /* indicator pattern only for lm3556*/ static ssize_t lm3556_indicator_pattern_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { ssize_t ret; struct led_classdev *led_cdev = dev_get_drvdata(dev); struct lm355x_chip_data *chip = container_of(led_cdev, struct lm355x_chip_data, cdev_indicator); unsigned int state; ret = kstrtouint(buf, 10, &state); if (ret) goto out; if (state > INDIC_PATTERN_SIZE - 1) state = INDIC_PATTERN_SIZE - 1; ret = regmap_write(chip->regmap, 0x04, indicator_pattern[state].blinking); if (ret < 0) goto out; ret = regmap_write(chip->regmap, 0x05, indicator_pattern[state].period_cnt);


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