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dsi_pwr.h

dsi_pwr.h 3.3 KB
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  1. /* SPDX-License-Identifier: GPL-2.0-only */
    2. 

  2. /*
    3. 

  3.  * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
    4. 

  4.  */
    5. 

  5. 

  6. #ifndef _DSI_PWR_H_
    7. 

  7. #define _DSI_PWR_H_
    8. 

  8. 

  9. #include <linux/device.h>
    10. 

  10. #include <linux/platform_device.h>
    11. 

  11. #include <linux/types.h>
    12. 

  12. #include <linux/regulator/consumer.h>
    13. 

  13. 

  14. struct dsi_parser_utils;
    15. 

  15. 

  16. /**
    17. 

  17.  * struct dsi_vreg - regulator information for DSI regulators
    18. 

  18.  * @vreg:            Handle to the regulator.
    19. 

  19.  * @vreg_name:       Regulator name.
    20. 

  20.  * @min_voltage:     Minimum voltage in uV.
    21. 

  21.  * @max_voltage:     Maximum voltage in uV.
    22. 

  22.  * @enable_load:     Load, in uA, when enabled.
    23. 

  23.  * @disable_load:    Load, in uA, when disabled.
    24. 

  24.  * @off_min_voltage: Minimum voltage in uV when regulator is disabled.
    25. 

  25.  * @pre_on_sleep:    Sleep, in ms, before enabling the regulator.
    26. 

  26.  * @post_on_sleep:   Sleep, in ms, after enabling the regulator.
    27. 

  27.  * @pre_off_sleep:   Sleep, in ms, before disabling the regulator.
    28. 

  28.  * @post_off_sleep:  Sleep, in ms, after disabling the regulator.
    29. 

  29.  */
    30. 

  30. struct dsi_vreg {
    31. 

  31. 	struct regulator *vreg;
    32. 

  32. 	char vreg_name[32];
    33. 

  33. 	u32 min_voltage;
    34. 

  34. 	u32 max_voltage;
    35. 

  35. 	u32 enable_load;
    36. 

  36. 	u32 disable_load;
    37. 

  37. 	u32 off_min_voltage;
    38. 

  38. 	u32 pre_on_sleep;
    39. 

  39. 	u32 post_on_sleep;
    40. 

  40. 	u32 pre_off_sleep;
    41. 

  41. 	u32 post_off_sleep;
    42. 

  42. };
    43. 

  43. 

  44. /**
    45. 

  45.  * struct dsi_regulator_info - set of vregs that are turned on/off together.
    46. 

  46.  * @vregs:       Array of dsi_vreg structures.
    47. 

  47.  * @count:       Number of vregs.
    48. 

  48.  * @refcount:    Reference counting for enabling.
    49. 

  49.  */
    50. 

  50. struct dsi_regulator_info {
    51. 

  51. 	struct dsi_vreg *vregs;
    52. 

  52. 	u32 count;
    53. 

  53. 	u32 refcount;
    54. 

  54. };
    55. 

  55. 

  56. /**
    57. 

  57.  * dsi_pwr_of_get_vreg_data - parse regulator supply information
    58. 

  58.  * @of_node:        Device of node to parse for supply information.
    59. 

  59.  * @regs:           Pointer where regulator information will be copied to.
    60. 

  60.  * @supply_name:    Name of the supply node.
    61. 

  61.  *
    62. 

  62.  * return: error code in case of failure or 0 for success.
    63. 

  63.  */
    64. 

  64. int dsi_pwr_of_get_vreg_data(struct dsi_parser_utils *utils,
    65. 

  65. 				 struct dsi_regulator_info *regs,
    66. 

  66. 				 char *supply_name);
    67. 

  67. 

  68. /**
    69. 

  69.  * dsi_pwr_get_dt_vreg_data - parse regulator supply information
    70. 

  70.  * @dev:            Device whose of_node needs to be parsed.
    71. 

  71.  * @regs:           Pointer where regulator information will be copied to.
    72. 

  72.  * @supply_name:    Name of the supply node.
    73. 

  73.  *
    74. 

  74.  * return: error code in case of failure or 0 for success.
    75. 

  75.  */
    76. 

  76. int dsi_pwr_get_dt_vreg_data(struct device *dev,
    77. 

  77. 				 struct dsi_regulator_info *regs,
    78. 

  78. 				 char *supply_name);
    79. 

  79. 

  80. /**
    81. 

  81.  * dsi_pwr_enable_regulator() - enable a set of regulators
    82. 

  82.  * @regs:       Pointer to set of regulators to enable or disable.
    83. 

  83.  * @enable:     Enable/Disable regulators.
    84. 

  84.  *
    85. 

  85.  * return: error code in case of failure or 0 for success.
    86. 

  86.  */
    87. 

  87. int dsi_pwr_enable_regulator(struct dsi_regulator_info *regs, bool enable);
    88. 

  88. 

  89. /**
    90. 

  90.  * dsi_pwr_panel_regulator_mode_set()
    91. 

  91.  * set regulator mode for OLED panel
    92. 

  92.  * @regs:       Pointer to set of regulators to enable or disable.
    93. 

  93.  * @reg_name:		Panel regulator name
    94. 

  94.  * @regulator_mode:	Regulator mode values, like:
    95. 

  95.  *                  REGULATOR_MODE_INVALID
    96. 

  96.  *                  REGULATOR_MODE_FAST
    97. 

  97.  *                  REGULATOR_MODE_NORMAL
    98. 

  98.  *                  REGULATOR_MODE_IDLE
    99. 

  99.  *                  REGULATOR_MODE_STANDBY
    100. 

  100.  *
    101. 

  101.  * return: error code in case of failure or 0 for success.
    102. 

  102.  */
    103. 

  103. int dsi_pwr_panel_regulator_mode_set(struct dsi_regulator_info *regs,
    104. 

  104. 						const char *reg_name,
    105. 

  105. 						int regulator_mode);
    106. 

  106. #endif /* _DSI_PWR_H_ */
    107.