drivers/gpu/drm/amd/display/modules/power/power_helpers.c

   1 /* Copyright 2018 Advanced Micro Devices, Inc.
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a
   4  * copy of this software and associated documentation files (the "Software"),
   5  * to deal in the Software without restriction, including without limitation
   6  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   7  * and/or sell copies of the Software, and to permit persons to whom the
   8  * Software is furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in
  11  * all copies or substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  16  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  17  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  18  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  19  * OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  * Authors: AMD
  22  *
  23  */
  24
  25 #include "power_helpers.h"
  26 #include "dc/inc/hw/dmcu.h"
  27
  28 #define DIV_ROUNDUP(a, b) (((a)+((b)/2))/(b))
  29
  30 /* Possible Min Reduction config from least aggressive to most aggressive
  31  *  0    1     2     3     4     5     6     7     8     9     10    11   12
  32  * 100  98.0 94.1  94.1  85.1  80.3  75.3  69.4  60.0  57.6  50.2  49.8  40.0 %
  33  */
  34 static const unsigned char min_reduction_table[13] = {
  35 0xff, 0xfa, 0xf0, 0xf0, 0xd9, 0xcd, 0xc0, 0xb1, 0x99, 0x93, 0x80, 0x82, 0x66};
  36
  37 /* Possible Max Reduction configs from least aggressive to most aggressive
  38  *  0    1     2     3     4     5     6     7     8     9     10    11   12
  39  * 96.1 89.8 85.1  80.3  69.4  64.7  64.7  50.2  39.6  30.2  30.2  30.2  19.6 %
  40  */
  41 static const unsigned char max_reduction_table[13] = {
  42 0xf5, 0xe5, 0xd9, 0xcd, 0xb1, 0xa5, 0xa5, 0x80, 0x65, 0x4d, 0x4d, 0x4d, 0x32};
  43
  44 /* ABM 2.2 Min Reduction effectively disabled (100% for all configs)*/
  45 static const unsigned char min_reduction_table_v_2_2[13] = {
  46 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
  47
  48 /* Possible ABM 2.2 Max Reduction configs from least aggressive to most aggressive
  49  *  0    1     2     3     4     5     6     7     8     9     10    11   12
  50  * 96.1 89.8 85.1  80.3  69.4  64.7  54.9  45.1  30.2  25.1  19.6  12.5  12.5 %
  51  */
  52 static const unsigned char max_reduction_table_v_2_2[13] = {
  53 0xf5, 0xe5, 0xd9, 0xcd, 0xb1, 0xa5, 0x8c, 0x73, 0x4d, 0x40, 0x32, 0x20, 0x20};
  54
  55 /* Predefined ABM configuration sets. We may have different configuration sets
  56  * in order to satisfy different power/quality requirements.
  57  */
  58 static const unsigned char abm_config[abm_defines_max_config][abm_defines_max_level] = {
  59 /*  ABM Level 1,    ABM Level 2,    ABM Level 3,    ABM Level 4 */
  60 {       2,              5,              7,              8       },      /* Default - Medium aggressiveness */
  61 {       2,              5,              8,              11      },      /* Alt #1  - Increased aggressiveness */
  62 {       0,              2,              4,              8       },      /* Alt #2  - Minimal aggressiveness */
  63 {       3,              6,              10,             12      },      /* Alt #3  - Super aggressiveness */
  64 };
  65
  66 #define NUM_AMBI_LEVEL    5
  67 #define NUM_AGGR_LEVEL    4
  68 #define NUM_POWER_FN_SEGS 8
  69 #define NUM_BL_CURVE_SEGS 16
  70 #define IRAM_RESERVE_AREA_START 0xF0  // reserve 0xF0~0xFF are write by DMCU only
  71 #define IRAM_SIZE 256
  72
  73 #pragma pack(push, 1)
  74 /* NOTE: iRAM is 256B in size */
  75 struct iram_table_v_2 {
  76         /* flags                      */
  77         uint16_t flags;                                                 /* 0x00 U16  */
  78
  79         /* parameters for ABM2.0 algorithm */
  80         uint8_t min_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];          /* 0x02 U0.8 */
  81         uint8_t max_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];          /* 0x16 U0.8 */
  82         uint8_t bright_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];        /* 0x2a U2.6 */
  83         uint8_t bright_neg_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];        /* 0x3e U2.6 */
  84         uint8_t dark_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];          /* 0x52 U2.6 */
  85         uint8_t dark_neg_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];          /* 0x66 U2.6 */
  86         uint8_t iir_curve[NUM_AMBI_LEVEL];                              /* 0x7a U0.8 */
  87         uint8_t deviation_gain;                                         /* 0x7f U0.8 */
  88
  89         /* parameters for crgb conversion */
  90         uint16_t crgb_thresh[NUM_POWER_FN_SEGS];                        /* 0x80 U3.13 */
  91         uint16_t crgb_offset[NUM_POWER_FN_SEGS];                        /* 0x90 U1.15 */
  92         uint16_t crgb_slope[NUM_POWER_FN_SEGS];                         /* 0xa0 U4.12 */
  93
  94         /* parameters for custom curve */
  95         /* thresholds for brightness --> backlight */
  96         uint16_t backlight_thresholds[NUM_BL_CURVE_SEGS];               /* 0xb0 U16.0 */
  97         /* offsets for brightness --> backlight */
  98         uint16_t backlight_offsets[NUM_BL_CURVE_SEGS];                  /* 0xd0 U16.0 */
  99
 100         /* For reading PSR State directly from IRAM */
 101         uint8_t psr_state;                                              /* 0xf0       */
 102         uint8_t dmcu_mcp_interface_version;                                                     /* 0xf1       */
 103         uint8_t dmcu_abm_feature_version;                                                       /* 0xf2       */
 104         uint8_t dmcu_psr_feature_version;                                                       /* 0xf3       */
 105         uint16_t dmcu_version;                                                                          /* 0xf4       */
 106         uint8_t dmcu_state;                                             /* 0xf6       */
 107
 108         uint16_t blRampReduction;                                       /* 0xf7       */
 109         uint16_t blRampStart;                                           /* 0xf9       */
 110         uint8_t dummy5;                                                 /* 0xfb       */
 111         uint8_t dummy6;                                                 /* 0xfc       */
 112         uint8_t dummy7;                                                 /* 0xfd       */
 113         uint8_t dummy8;                                                 /* 0xfe       */
 114         uint8_t dummy9;                                                 /* 0xff       */
 115 };
 116
 117 struct iram_table_v_2_2 {
 118         /* flags                      */
 119         uint16_t flags;                                                 /* 0x00 U16  */
 120
 121         /* parameters for ABM2.2 algorithm */
 122         uint8_t min_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];          /* 0x02 U0.8 */
 123         uint8_t max_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];          /* 0x16 U0.8 */
 124         uint8_t bright_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];        /* 0x2a U2.6 */
 125         uint8_t dark_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];          /* 0x3e U2.6 */
 126         uint8_t hybridFactor[NUM_AGGR_LEVEL];                                           /* 0x52 U0.8 */
 127         uint8_t contrastFactor[NUM_AGGR_LEVEL];                                         /* 0x56 U0.8 */
 128         uint8_t deviation_gain[NUM_AGGR_LEVEL];                                         /* 0x5a U0.8 */
 129         uint8_t iir_curve[NUM_AMBI_LEVEL];                                                      /* 0x5e U0.8 */
 130         uint8_t pad[29];                                                                                        /* 0x63 U0.8 */
 131
 132         /* parameters for crgb conversion */
 133         uint16_t crgb_thresh[NUM_POWER_FN_SEGS];                                        /* 0x80 U3.13 */
 134         uint16_t crgb_offset[NUM_POWER_FN_SEGS];                                        /* 0x90 U1.15 */
 135         uint16_t crgb_slope[NUM_POWER_FN_SEGS];                                         /* 0xa0 U4.12 */
 136
 137         /* parameters for custom curve */
 138         /* thresholds for brightness --> backlight */
 139         uint16_t backlight_thresholds[NUM_BL_CURVE_SEGS];                       /* 0xb0 U16.0 */
 140         /* offsets for brightness --> backlight */
 141         uint16_t backlight_offsets[NUM_BL_CURVE_SEGS];                          /* 0xd0 U16.0 */
 142
 143         /* For reading PSR State directly from IRAM */
 144         uint8_t psr_state;                                                                                      /* 0xf0       */
 145         uint8_t dmcu_mcp_interface_version;                                                     /* 0xf1       */
 146         uint8_t dmcu_abm_feature_version;                                                       /* 0xf2       */
 147         uint8_t dmcu_psr_feature_version;                                                       /* 0xf3       */
 148         uint16_t dmcu_version;                                                                          /* 0xf4       */
 149         uint8_t dmcu_state;                                                                                     /* 0xf6       */
 150
 151         uint16_t blRampReduction;                                                                       /* 0xf7       */
 152         uint16_t blRampStart;                                                                           /* 0xf9       */
 153         uint8_t dummy5;                                                                                         /* 0xfb       */
 154         uint8_t dummy6;                                                                                         /* 0xfc       */
 155         uint8_t dummy7;                                                                                         /* 0xfd       */
 156         uint8_t dummy8;                                                                                         /* 0xfe       */
 157         uint8_t dummy9;                                                                                         /* 0xff       */
 158 };
 159 #pragma pack(pop)
 160
 161 static uint16_t backlight_8_to_16(unsigned int backlight_8bit)
 162 {
 163         return (uint16_t)(backlight_8bit * 0x101);
 164 }
 165
 166 static void fill_backlight_transform_table(struct dmcu_iram_parameters params,
 167                 struct iram_table_v_2 *table)
 168 {
 169         unsigned int i;
 170         unsigned int num_entries = NUM_BL_CURVE_SEGS;
 171         unsigned int query_input_8bit;
 172         unsigned int query_output_8bit;
 173         unsigned int lut_index;
 174
 175         table->backlight_thresholds[0] = 0;
 176         table->backlight_offsets[0] = params.backlight_lut_array[0];
 177         table->backlight_thresholds[num_entries-1] = 0xFFFF;
 178         table->backlight_offsets[num_entries-1] =
 179                 params.backlight_lut_array[params.backlight_lut_array_size - 1];
 180
 181         /* Setup all brightness levels between 0% and 100% exclusive
 182          * Fills brightness-to-backlight transform table. Backlight custom curve
 183          * describes transform from brightness to backlight. It will be defined
 184          * as set of thresholds and set of offsets, together, implying
 185          * extrapolation of custom curve into 16 uniformly spanned linear
 186          * segments.  Each threshold/offset represented by 16 bit entry in
 187          * format U4.10.
 188          */
 189         for (i = 1; i+1 < num_entries; i++) {
 190                 query_input_8bit = DIV_ROUNDUP((i * 256), num_entries);
 191
 192                 lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1);
 193                 ASSERT(lut_index < params.backlight_lut_array_size);
 194                 query_output_8bit = params.backlight_lut_array[lut_index] >> 8;
 195
 196                 table->backlight_thresholds[i] =
 197                                 backlight_8_to_16(query_input_8bit);
 198                 table->backlight_offsets[i] =
 199                                 backlight_8_to_16(query_output_8bit);
 200         }
 201 }
 202
 203 static void fill_backlight_transform_table_v_2_2(struct dmcu_iram_parameters params,
 204                 struct iram_table_v_2_2 *table)
 205 {
 206         unsigned int i;
 207         unsigned int num_entries = NUM_BL_CURVE_SEGS;
 208         unsigned int query_input_8bit;
 209         unsigned int query_output_8bit;
 210         unsigned int lut_index;
 211
 212         table->backlight_thresholds[0] = 0;
 213         table->backlight_offsets[0] = params.backlight_lut_array[0];
 214         table->backlight_thresholds[num_entries-1] = 0xFFFF;
 215         table->backlight_offsets[num_entries-1] =
 216                 params.backlight_lut_array[params.backlight_lut_array_size - 1];
 217
 218         /* Setup all brightness levels between 0% and 100% exclusive
 219          * Fills brightness-to-backlight transform table. Backlight custom curve
 220          * describes transform from brightness to backlight. It will be defined
 221          * as set of thresholds and set of offsets, together, implying
 222          * extrapolation of custom curve into 16 uniformly spanned linear
 223          * segments.  Each threshold/offset represented by 16 bit entry in
 224          * format U4.10.
 225          */
 226         for (i = 1; i+1 < num_entries; i++) {
 227                 query_input_8bit = DIV_ROUNDUP((i * 256), num_entries);
 228
 229                 lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1);
 230                 ASSERT(lut_index < params.backlight_lut_array_size);
 231                 query_output_8bit = params.backlight_lut_array[lut_index] >> 8;
 232
 233                 table->backlight_thresholds[i] =
 234                                 backlight_8_to_16(query_input_8bit);
 235                 table->backlight_offsets[i] =
 236                                 backlight_8_to_16(query_output_8bit);
 237         }
 238 }
 239
 240 void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters params)
 241 {
 242         unsigned int set = params.set;
 243
 244         ram_table->flags = 0x0;
 245         ram_table->deviation_gain = 0xb3;
 246
 247         ram_table->blRampReduction =
 248                 cpu_to_be16(params.backlight_ramping_reduction);
 249         ram_table->blRampStart =
 250                 cpu_to_be16(params.backlight_ramping_start);
 251
 252         ram_table->min_reduction[0][0] = min_reduction_table[abm_config[set][0]];
 253         ram_table->min_reduction[1][0] = min_reduction_table[abm_config[set][0]];
 254         ram_table->min_reduction[2][0] = min_reduction_table[abm_config[set][0]];
 255         ram_table->min_reduction[3][0] = min_reduction_table[abm_config[set][0]];
 256         ram_table->min_reduction[4][0] = min_reduction_table[abm_config[set][0]];
 257         ram_table->max_reduction[0][0] = max_reduction_table[abm_config[set][0]];
 258         ram_table->max_reduction[1][0] = max_reduction_table[abm_config[set][0]];
 259         ram_table->max_reduction[2][0] = max_reduction_table[abm_config[set][0]];
 260         ram_table->max_reduction[3][0] = max_reduction_table[abm_config[set][0]];
 261         ram_table->max_reduction[4][0] = max_reduction_table[abm_config[set][0]];
 262
 263         ram_table->min_reduction[0][1] = min_reduction_table[abm_config[set][1]];
 264         ram_table->min_reduction[1][1] = min_reduction_table[abm_config[set][1]];
 265         ram_table->min_reduction[2][1] = min_reduction_table[abm_config[set][1]];
 266         ram_table->min_reduction[3][1] = min_reduction_table[abm_config[set][1]];
 267         ram_table->min_reduction[4][1] = min_reduction_table[abm_config[set][1]];
 268         ram_table->max_reduction[0][1] = max_reduction_table[abm_config[set][1]];
 269         ram_table->max_reduction[1][1] = max_reduction_table[abm_config[set][1]];
 270         ram_table->max_reduction[2][1] = max_reduction_table[abm_config[set][1]];
 271         ram_table->max_reduction[3][1] = max_reduction_table[abm_config[set][1]];
 272         ram_table->max_reduction[4][1] = max_reduction_table[abm_config[set][1]];
 273
 274         ram_table->min_reduction[0][2] = min_reduction_table[abm_config[set][2]];
 275         ram_table->min_reduction[1][2] = min_reduction_table[abm_config[set][2]];
 276         ram_table->min_reduction[2][2] = min_reduction_table[abm_config[set][2]];
 277         ram_table->min_reduction[3][2] = min_reduction_table[abm_config[set][2]];
 278         ram_table->min_reduction[4][2] = min_reduction_table[abm_config[set][2]];
 279         ram_table->max_reduction[0][2] = max_reduction_table[abm_config[set][2]];
 280         ram_table->max_reduction[1][2] = max_reduction_table[abm_config[set][2]];
 281         ram_table->max_reduction[2][2] = max_reduction_table[abm_config[set][2]];
 282         ram_table->max_reduction[3][2] = max_reduction_table[abm_config[set][2]];
 283         ram_table->max_reduction[4][2] = max_reduction_table[abm_config[set][2]];
 284
 285         ram_table->min_reduction[0][3] = min_reduction_table[abm_config[set][3]];
 286         ram_table->min_reduction[1][3] = min_reduction_table[abm_config[set][3]];
 287         ram_table->min_reduction[2][3] = min_reduction_table[abm_config[set][3]];
 288         ram_table->min_reduction[3][3] = min_reduction_table[abm_config[set][3]];
 289         ram_table->min_reduction[4][3] = min_reduction_table[abm_config[set][3]];
 290         ram_table->max_reduction[0][3] = max_reduction_table[abm_config[set][3]];
 291         ram_table->max_reduction[1][3] = max_reduction_table[abm_config[set][3]];
 292         ram_table->max_reduction[2][3] = max_reduction_table[abm_config[set][3]];
 293         ram_table->max_reduction[3][3] = max_reduction_table[abm_config[set][3]];
 294         ram_table->max_reduction[4][3] = max_reduction_table[abm_config[set][3]];
 295
 296         ram_table->bright_pos_gain[0][0] = 0x20;
 297         ram_table->bright_pos_gain[0][1] = 0x20;
 298         ram_table->bright_pos_gain[0][2] = 0x20;
 299         ram_table->bright_pos_gain[0][3] = 0x20;
 300         ram_table->bright_pos_gain[1][0] = 0x20;
 301         ram_table->bright_pos_gain[1][1] = 0x20;
 302         ram_table->bright_pos_gain[1][2] = 0x20;
 303         ram_table->bright_pos_gain[1][3] = 0x20;
 304         ram_table->bright_pos_gain[2][0] = 0x20;
 305         ram_table->bright_pos_gain[2][1] = 0x20;
 306         ram_table->bright_pos_gain[2][2] = 0x20;
 307         ram_table->bright_pos_gain[2][3] = 0x20;
 308         ram_table->bright_pos_gain[3][0] = 0x20;
 309         ram_table->bright_pos_gain[3][1] = 0x20;
 310         ram_table->bright_pos_gain[3][2] = 0x20;
 311         ram_table->bright_pos_gain[3][3] = 0x20;
 312         ram_table->bright_pos_gain[4][0] = 0x20;
 313         ram_table->bright_pos_gain[4][1] = 0x20;
 314         ram_table->bright_pos_gain[4][2] = 0x20;
 315         ram_table->bright_pos_gain[4][3] = 0x20;
 316         ram_table->bright_neg_gain[0][1] = 0x00;
 317         ram_table->bright_neg_gain[0][2] = 0x00;
 318         ram_table->bright_neg_gain[0][3] = 0x00;
 319         ram_table->bright_neg_gain[1][0] = 0x00;
 320         ram_table->bright_neg_gain[1][1] = 0x00;
 321         ram_table->bright_neg_gain[1][2] = 0x00;
 322         ram_table->bright_neg_gain[1][3] = 0x00;
 323         ram_table->bright_neg_gain[2][0] = 0x00;
 324         ram_table->bright_neg_gain[2][1] = 0x00;
 325         ram_table->bright_neg_gain[2][2] = 0x00;
 326         ram_table->bright_neg_gain[2][3] = 0x00;
 327         ram_table->bright_neg_gain[3][0] = 0x00;
 328         ram_table->bright_neg_gain[3][1] = 0x00;
 329         ram_table->bright_neg_gain[3][2] = 0x00;
 330         ram_table->bright_neg_gain[3][3] = 0x00;
 331         ram_table->bright_neg_gain[4][0] = 0x00;
 332         ram_table->bright_neg_gain[4][1] = 0x00;
 333         ram_table->bright_neg_gain[4][2] = 0x00;
 334         ram_table->bright_neg_gain[4][3] = 0x00;
 335         ram_table->dark_pos_gain[0][0] = 0x00;
 336         ram_table->dark_pos_gain[0][1] = 0x00;
 337         ram_table->dark_pos_gain[0][2] = 0x00;
 338         ram_table->dark_pos_gain[0][3] = 0x00;
 339         ram_table->dark_pos_gain[1][0] = 0x00;
 340         ram_table->dark_pos_gain[1][1] = 0x00;
 341         ram_table->dark_pos_gain[1][2] = 0x00;
 342         ram_table->dark_pos_gain[1][3] = 0x00;
 343         ram_table->dark_pos_gain[2][0] = 0x00;
 344         ram_table->dark_pos_gain[2][1] = 0x00;
 345         ram_table->dark_pos_gain[2][2] = 0x00;
 346         ram_table->dark_pos_gain[2][3] = 0x00;
 347         ram_table->dark_pos_gain[3][0] = 0x00;
 348         ram_table->dark_pos_gain[3][1] = 0x00;
 349         ram_table->dark_pos_gain[3][2] = 0x00;
 350         ram_table->dark_pos_gain[3][3] = 0x00;
 351         ram_table->dark_pos_gain[4][0] = 0x00;
 352         ram_table->dark_pos_gain[4][1] = 0x00;
 353         ram_table->dark_pos_gain[4][2] = 0x00;
 354         ram_table->dark_pos_gain[4][3] = 0x00;
 355         ram_table->dark_neg_gain[0][0] = 0x00;
 356         ram_table->dark_neg_gain[0][1] = 0x00;
 357         ram_table->dark_neg_gain[0][2] = 0x00;
 358         ram_table->dark_neg_gain[0][3] = 0x00;
 359         ram_table->dark_neg_gain[1][0] = 0x00;
 360         ram_table->dark_neg_gain[1][1] = 0x00;
 361         ram_table->dark_neg_gain[1][2] = 0x00;
 362         ram_table->dark_neg_gain[1][3] = 0x00;
 363         ram_table->dark_neg_gain[2][0] = 0x00;
 364         ram_table->dark_neg_gain[2][1] = 0x00;
 365         ram_table->dark_neg_gain[2][2] = 0x00;
 366         ram_table->dark_neg_gain[2][3] = 0x00;
 367         ram_table->dark_neg_gain[3][0] = 0x00;
 368         ram_table->dark_neg_gain[3][1] = 0x00;
 369         ram_table->dark_neg_gain[3][2] = 0x00;
 370         ram_table->dark_neg_gain[3][3] = 0x00;
 371         ram_table->dark_neg_gain[4][0] = 0x00;
 372         ram_table->dark_neg_gain[4][1] = 0x00;
 373         ram_table->dark_neg_gain[4][2] = 0x00;
 374         ram_table->dark_neg_gain[4][3] = 0x00;
 375
 376         ram_table->iir_curve[0] = 0x65;
 377         ram_table->iir_curve[1] = 0x65;
 378         ram_table->iir_curve[2] = 0x65;
 379         ram_table->iir_curve[3] = 0x65;
 380         ram_table->iir_curve[4] = 0x65;
 381
 382         //Gamma 2.4
 383         ram_table->crgb_thresh[0] = cpu_to_be16(0x13b6);
 384         ram_table->crgb_thresh[1] = cpu_to_be16(0x1648);
 385         ram_table->crgb_thresh[2] = cpu_to_be16(0x18e3);
 386         ram_table->crgb_thresh[3] = cpu_to_be16(0x1b41);
 387         ram_table->crgb_thresh[4] = cpu_to_be16(0x1d46);
 388         ram_table->crgb_thresh[5] = cpu_to_be16(0x1f21);
 389         ram_table->crgb_thresh[6] = cpu_to_be16(0x2167);
 390         ram_table->crgb_thresh[7] = cpu_to_be16(0x2384);
 391         ram_table->crgb_offset[0] = cpu_to_be16(0x2999);
 392         ram_table->crgb_offset[1] = cpu_to_be16(0x3999);
 393         ram_table->crgb_offset[2] = cpu_to_be16(0x4666);
 394         ram_table->crgb_offset[3] = cpu_to_be16(0x5999);
 395         ram_table->crgb_offset[4] = cpu_to_be16(0x6333);
 396         ram_table->crgb_offset[5] = cpu_to_be16(0x7800);
 397         ram_table->crgb_offset[6] = cpu_to_be16(0x8c00);
 398         ram_table->crgb_offset[7] = cpu_to_be16(0xa000);
 399         ram_table->crgb_slope[0]  = cpu_to_be16(0x3147);
 400         ram_table->crgb_slope[1]  = cpu_to_be16(0x2978);
 401         ram_table->crgb_slope[2]  = cpu_to_be16(0x23a2);
 402         ram_table->crgb_slope[3]  = cpu_to_be16(0x1f55);
 403         ram_table->crgb_slope[4]  = cpu_to_be16(0x1c63);
 404         ram_table->crgb_slope[5]  = cpu_to_be16(0x1a0f);
 405         ram_table->crgb_slope[6]  = cpu_to_be16(0x178d);
 406         ram_table->crgb_slope[7]  = cpu_to_be16(0x15ab);
 407
 408         fill_backlight_transform_table(
 409                         params, ram_table);
 410 }
 411
 412 void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params)
 413 {
 414         unsigned int set = params.set;
 415
 416         ram_table->flags = 0x0;
 417
 418         ram_table->deviation_gain[0] = 0xb3;
 419         ram_table->deviation_gain[1] = 0xb3;
 420         ram_table->deviation_gain[2] = 0xb3;
 421         ram_table->deviation_gain[3] = 0xb3;
 422
 423         ram_table->blRampReduction =
 424                 cpu_to_be16(params.backlight_ramping_reduction);
 425         ram_table->blRampStart =
 426                 cpu_to_be16(params.backlight_ramping_start);
 427
 428         ram_table->min_reduction[0][0] = min_reduction_table_v_2_2[abm_config[set][0]];
 429         ram_table->min_reduction[1][0] = min_reduction_table_v_2_2[abm_config[set][0]];
 430         ram_table->min_reduction[2][0] = min_reduction_table_v_2_2[abm_config[set][0]];
 431         ram_table->min_reduction[3][0] = min_reduction_table_v_2_2[abm_config[set][0]];
 432         ram_table->min_reduction[4][0] = min_reduction_table_v_2_2[abm_config[set][0]];
 433         ram_table->max_reduction[0][0] = max_reduction_table_v_2_2[abm_config[set][0]];
 434         ram_table->max_reduction[1][0] = max_reduction_table_v_2_2[abm_config[set][0]];
 435         ram_table->max_reduction[2][0] = max_reduction_table_v_2_2[abm_config[set][0]];
 436         ram_table->max_reduction[3][0] = max_reduction_table_v_2_2[abm_config[set][0]];
 437         ram_table->max_reduction[4][0] = max_reduction_table_v_2_2[abm_config[set][0]];
 438
 439         ram_table->min_reduction[0][1] = min_reduction_table_v_2_2[abm_config[set][1]];
 440         ram_table->min_reduction[1][1] = min_reduction_table_v_2_2[abm_config[set][1]];
 441         ram_table->min_reduction[2][1] = min_reduction_table_v_2_2[abm_config[set][1]];
 442         ram_table->min_reduction[3][1] = min_reduction_table_v_2_2[abm_config[set][1]];
 443         ram_table->min_reduction[4][1] = min_reduction_table_v_2_2[abm_config[set][1]];
 444         ram_table->max_reduction[0][1] = max_reduction_table_v_2_2[abm_config[set][1]];
 445         ram_table->max_reduction[1][1] = max_reduction_table_v_2_2[abm_config[set][1]];
 446         ram_table->max_reduction[2][1] = max_reduction_table_v_2_2[abm_config[set][1]];
 447         ram_table->max_reduction[3][1] = max_reduction_table_v_2_2[abm_config[set][1]];
 448         ram_table->max_reduction[4][1] = max_reduction_table_v_2_2[abm_config[set][1]];
 449
 450         ram_table->min_reduction[0][2] = min_reduction_table_v_2_2[abm_config[set][2]];
 451         ram_table->min_reduction[1][2] = min_reduction_table_v_2_2[abm_config[set][2]];
 452         ram_table->min_reduction[2][2] = min_reduction_table_v_2_2[abm_config[set][2]];
 453         ram_table->min_reduction[3][2] = min_reduction_table_v_2_2[abm_config[set][2]];
 454         ram_table->min_reduction[4][2] = min_reduction_table_v_2_2[abm_config[set][2]];
 455         ram_table->max_reduction[0][2] = max_reduction_table_v_2_2[abm_config[set][2]];
 456         ram_table->max_reduction[1][2] = max_reduction_table_v_2_2[abm_config[set][2]];
 457         ram_table->max_reduction[2][2] = max_reduction_table_v_2_2[abm_config[set][2]];
 458         ram_table->max_reduction[3][2] = max_reduction_table_v_2_2[abm_config[set][2]];
 459         ram_table->max_reduction[4][2] = max_reduction_table_v_2_2[abm_config[set][2]];
 460
 461         ram_table->min_reduction[0][3] = min_reduction_table_v_2_2[abm_config[set][3]];
 462         ram_table->min_reduction[1][3] = min_reduction_table_v_2_2[abm_config[set][3]];
 463         ram_table->min_reduction[2][3] = min_reduction_table_v_2_2[abm_config[set][3]];
 464         ram_table->min_reduction[3][3] = min_reduction_table_v_2_2[abm_config[set][3]];
 465         ram_table->min_reduction[4][3] = min_reduction_table_v_2_2[abm_config[set][3]];
 466         ram_table->max_reduction[0][3] = max_reduction_table_v_2_2[abm_config[set][3]];
 467         ram_table->max_reduction[1][3] = max_reduction_table_v_2_2[abm_config[set][3]];
 468         ram_table->max_reduction[2][3] = max_reduction_table_v_2_2[abm_config[set][3]];
 469         ram_table->max_reduction[3][3] = max_reduction_table_v_2_2[abm_config[set][3]];
 470         ram_table->max_reduction[4][3] = max_reduction_table_v_2_2[abm_config[set][3]];
 471
 472         ram_table->bright_pos_gain[0][0] = 0x20;
 473         ram_table->bright_pos_gain[0][1] = 0x20;
 474         ram_table->bright_pos_gain[0][2] = 0x20;
 475         ram_table->bright_pos_gain[0][3] = 0x20;
 476         ram_table->bright_pos_gain[1][0] = 0x20;
 477         ram_table->bright_pos_gain[1][1] = 0x20;
 478         ram_table->bright_pos_gain[1][2] = 0x20;
 479         ram_table->bright_pos_gain[1][3] = 0x20;
 480         ram_table->bright_pos_gain[2][0] = 0x20;
 481         ram_table->bright_pos_gain[2][1] = 0x20;
 482         ram_table->bright_pos_gain[2][2] = 0x20;
 483         ram_table->bright_pos_gain[2][3] = 0x20;
 484         ram_table->bright_pos_gain[3][0] = 0x20;
 485         ram_table->bright_pos_gain[3][1] = 0x20;
 486         ram_table->bright_pos_gain[3][2] = 0x20;
 487         ram_table->bright_pos_gain[3][3] = 0x20;
 488         ram_table->bright_pos_gain[4][0] = 0x20;
 489         ram_table->bright_pos_gain[4][1] = 0x20;
 490         ram_table->bright_pos_gain[4][2] = 0x20;
 491         ram_table->bright_pos_gain[4][3] = 0x20;
 492
 493         ram_table->dark_pos_gain[0][0] = 0x00;
 494         ram_table->dark_pos_gain[0][1] = 0x00;
 495         ram_table->dark_pos_gain[0][2] = 0x00;
 496         ram_table->dark_pos_gain[0][3] = 0x00;
 497         ram_table->dark_pos_gain[1][0] = 0x00;
 498         ram_table->dark_pos_gain[1][1] = 0x00;
 499         ram_table->dark_pos_gain[1][2] = 0x00;
 500         ram_table->dark_pos_gain[1][3] = 0x00;
 501         ram_table->dark_pos_gain[2][0] = 0x00;
 502         ram_table->dark_pos_gain[2][1] = 0x00;
 503         ram_table->dark_pos_gain[2][2] = 0x00;
 504         ram_table->dark_pos_gain[2][3] = 0x00;
 505         ram_table->dark_pos_gain[3][0] = 0x00;
 506         ram_table->dark_pos_gain[3][1] = 0x00;
 507         ram_table->dark_pos_gain[3][2] = 0x00;
 508         ram_table->dark_pos_gain[3][3] = 0x00;
 509         ram_table->dark_pos_gain[4][0] = 0x00;
 510         ram_table->dark_pos_gain[4][1] = 0x00;
 511         ram_table->dark_pos_gain[4][2] = 0x00;
 512         ram_table->dark_pos_gain[4][3] = 0x00;
 513
 514         ram_table->hybridFactor[0] = 0xff;
 515         ram_table->hybridFactor[1] = 0xff;
 516         ram_table->hybridFactor[2] = 0xff;
 517         ram_table->hybridFactor[3] = 0xc0;
 518
 519         ram_table->contrastFactor[0] = 0x99;
 520         ram_table->contrastFactor[1] = 0x80;
 521         ram_table->contrastFactor[2] = 0x80;
 522         ram_table->contrastFactor[3] = 0x4D;
 523
 524         ram_table->iir_curve[0] = 0x65;
 525         ram_table->iir_curve[1] = 0x65;
 526         ram_table->iir_curve[2] = 0x65;
 527         ram_table->iir_curve[3] = 0x65;
 528         ram_table->iir_curve[4] = 0x65;
 529
 530         //Gamma 2.2
 531         ram_table->crgb_thresh[0] = cpu_to_be16(0x127c);
 532         ram_table->crgb_thresh[1] = cpu_to_be16(0x151b);
 533         ram_table->crgb_thresh[2] = cpu_to_be16(0x17d5);
 534         ram_table->crgb_thresh[3] = cpu_to_be16(0x1a56);
 535         ram_table->crgb_thresh[4] = cpu_to_be16(0x1c83);
 536         ram_table->crgb_thresh[5] = cpu_to_be16(0x1e72);
 537         ram_table->crgb_thresh[6] = cpu_to_be16(0x20f0);
 538         ram_table->crgb_thresh[7] = cpu_to_be16(0x232b);
 539         ram_table->crgb_offset[0] = cpu_to_be16(0x2999);
 540         ram_table->crgb_offset[1] = cpu_to_be16(0x3999);
 541         ram_table->crgb_offset[2] = cpu_to_be16(0x4666);
 542         ram_table->crgb_offset[3] = cpu_to_be16(0x5999);
 543         ram_table->crgb_offset[4] = cpu_to_be16(0x6333);
 544         ram_table->crgb_offset[5] = cpu_to_be16(0x7800);
 545         ram_table->crgb_offset[6] = cpu_to_be16(0x8c00);
 546         ram_table->crgb_offset[7] = cpu_to_be16(0xa000);
 547         ram_table->crgb_slope[0]  = cpu_to_be16(0x3609);
 548         ram_table->crgb_slope[1]  = cpu_to_be16(0x2dfa);
 549         ram_table->crgb_slope[2]  = cpu_to_be16(0x27ea);
 550         ram_table->crgb_slope[3]  = cpu_to_be16(0x235d);
 551         ram_table->crgb_slope[4]  = cpu_to_be16(0x2042);
 552         ram_table->crgb_slope[5]  = cpu_to_be16(0x1dc3);
 553         ram_table->crgb_slope[6]  = cpu_to_be16(0x1b1a);
 554         ram_table->crgb_slope[7]  = cpu_to_be16(0x1910);
 555
 556         fill_backlight_transform_table_v_2_2(
 557                         params, ram_table);
 558 }
 559
 560 bool dmcu_load_iram(struct dmcu *dmcu,
 561         struct dmcu_iram_parameters params)
 562 {
 563         unsigned char ram_table[IRAM_SIZE];
 564
 565         if (dmcu == NULL)
 566                 return false;
 567
 568         if (!dmcu->funcs->is_dmcu_initialized(dmcu))
 569                 return true;
 570
 571         memset(&ram_table, 0, sizeof(ram_table));
 572
 573         if (dmcu->dmcu_version.abm_version == 0x22) {
 574                 fill_iram_v_2_2((struct iram_table_v_2_2 *)ram_table, params);
 575         } else {
 576                 fill_iram_v_2((struct iram_table_v_2 *)ram_table, params);
 577         }
 578
 579         return dmcu->funcs->load_iram(
 580                         dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START);
 581 }