drm/amd/display: Create switching mechanism for ABM 2.2

[Why]
Need method of detecting which version of the DMCU FW is loaded and
load the appropriate iRAM.

[How]
Create definition for ABM 2.2 iRAM, and load it if the DMCU FW version
number matches the ABM 2.2 version; otherwise load ABM 2.1 iRAM.

Signed-off-by: Josip Pavic <Josip.Pavic@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 418 insertions, 165 deletions

diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
index 5432183d9db0..29b7a26bea81 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
@@ -41,6 +41,17 @@ static const unsigned char min_reduction_table[13] = {
 static const unsigned char max_reduction_table[13] = {
 0xf5, 0xe5, 0xd9, 0xcd, 0xb1, 0xa5, 0xa5, 0x80, 0x65, 0x4d, 0x4d, 0x4d, 0x32};
 
+/* ABM 2.2 Min Reduction effectively disabled (100% for all configs)*/
+static const unsigned char min_reduction_table_v_2_2[13] = {
+0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+/* Possible ABM 2.2 Max Reduction configs from least aggressive to most aggressive
+ *  0    1     2     3     4     5     6     7     8     9     10    11   12
+ * 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 %
+ */
+static const unsigned char max_reduction_table_v_2_2[13] = {
+0xf5, 0xe5, 0xd9, 0xcd, 0xb1, 0xa5, 0x8c, 0x73, 0x4d, 0x40, 0x32, 0x20, 0x20};
+
 /* Predefined ABM configuration sets. We may have different configuration sets
  * in order to satisfy different power/quality requirements.
  */
@@ -57,6 +68,7 @@ static const unsigned char abm_config[abm_defines_max_config][abm_defines_max_le
 #define NUM_POWER_FN_SEGS 8
 #define NUM_BL_CURVE_SEGS 16
 #define IRAM_RESERVE_AREA_START 0xF0  // reserve 0xF0~0xFF are write by DMCU only
+#define IRAM_SIZE 256
 
 #pragma pack(push, 1)
 /* NOTE: iRAM is 256B in size */
@@ -101,6 +113,49 @@ struct iram_table_v_2 {
 	uint8_t dummy8;							/* 0xfe       */
 	uint8_t dummy9;							/* 0xff       */
 };
+
+struct iram_table_v_2_2 {
+	/* flags                      */
+	uint16_t flags;							/* 0x00 U16  */
+
+	/* parameters for ABM2.2 algorithm */
+	uint8_t min_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];		/* 0x02 U0.8 */
+	uint8_t max_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];		/* 0x16 U0.8 */
+	uint8_t bright_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];	/* 0x2a U2.6 */
+	uint8_t dark_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];		/* 0x3e U2.6 */
+	uint8_t hybridFactor[NUM_AGGR_LEVEL];						/* 0x52 U0.8 */
+	uint8_t contrastFactor[NUM_AGGR_LEVEL];						/* 0x56 U0.8 */
+	uint8_t deviation_gain[NUM_AGGR_LEVEL];						/* 0x5a U0.8 */
+	uint8_t iir_curve[NUM_AMBI_LEVEL];							/* 0x5e U0.8 */
+	uint8_t pad[29];											/* 0x63 U0.8 */
+
+	/* parameters for crgb conversion */
+	uint16_t crgb_thresh[NUM_POWER_FN_SEGS];					/* 0x80 U3.13 */
+	uint16_t crgb_offset[NUM_POWER_FN_SEGS];					/* 0x90 U1.15 */
+	uint16_t crgb_slope[NUM_POWER_FN_SEGS];						/* 0xa0 U4.12 */
+
+	/* parameters for custom curve */
+	/* thresholds for brightness --> backlight */
+	uint16_t backlight_thresholds[NUM_BL_CURVE_SEGS];			/* 0xb0 U16.0 */
+	/* offsets for brightness --> backlight */
+	uint16_t backlight_offsets[NUM_BL_CURVE_SEGS];				/* 0xd0 U16.0 */
+
+	/* For reading PSR State directly from IRAM */
+	uint8_t psr_state;											/* 0xf0       */
+	uint8_t dmcu_mcp_interface_version;							/* 0xf1       */
+	uint8_t dmcu_abm_feature_version;							/* 0xf2       */
+	uint8_t dmcu_psr_feature_version;							/* 0xf3       */
+	uint16_t dmcu_version;										/* 0xf4       */
+	uint8_t dmcu_state;											/* 0xf6       */
+
+	uint16_t blRampReduction;									/* 0xf7       */
+	uint16_t blRampStart;										/* 0xf9       */
+	uint8_t dummy5;												/* 0xfb       */
+	uint8_t dummy6;												/* 0xfc       */
+	uint8_t dummy7;												/* 0xfd       */
+	uint8_t dummy8;												/* 0xfe       */
+	uint8_t dummy9;												/* 0xff       */
+};
 #pragma pack(pop)
 
 static uint16_t backlight_8_to_16(unsigned int backlight_8bit)
@@ -145,11 +200,367 @@ static void fill_backlight_transform_table(struct dmcu_iram_parameters params,
 	}
 }
 
+static void fill_backlight_transform_table_v_2_2(struct dmcu_iram_parameters params,
+		struct iram_table_v_2_2 *table)
+{
+	unsigned int i;
+	unsigned int num_entries = NUM_BL_CURVE_SEGS;
+	unsigned int query_input_8bit;
+	unsigned int query_output_8bit;
+	unsigned int lut_index;
+
+	table->backlight_thresholds[0] = 0;
+	table->backlight_offsets[0] = params.backlight_lut_array[0];
+	table->backlight_thresholds[num_entries-1] = 0xFFFF;
+	table->backlight_offsets[num_entries-1] =
+		params.backlight_lut_array[params.backlight_lut_array_size - 1];
+
+	/* Setup all brightness levels between 0% and 100% exclusive
+	 * Fills brightness-to-backlight transform table. Backlight custom curve
+	 * describes transform from brightness to backlight. It will be defined
+	 * as set of thresholds and set of offsets, together, implying
+	 * extrapolation of custom curve into 16 uniformly spanned linear
+	 * segments.  Each threshold/offset represented by 16 bit entry in
+	 * format U4.10.
+	 */
+	for (i = 1; i+1 < num_entries; i++) {
+		query_input_8bit = DIV_ROUNDUP((i * 256), num_entries);
+
+		lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1);
+		ASSERT(lut_index < params.backlight_lut_array_size);
+		query_output_8bit = params.backlight_lut_array[lut_index] >> 8;
+
+		table->backlight_thresholds[i] =
+				backlight_8_to_16(query_input_8bit);
+		table->backlight_offsets[i] =
+				backlight_8_to_16(query_output_8bit);
+	}
+}
+
+void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters params)
+{
+	unsigned int set = params.set;
+
+	ram_table->flags = 0x0;
+	ram_table->deviation_gain = 0xb3;
+
+	ram_table->blRampReduction =
+		cpu_to_be16(params.backlight_ramping_reduction);
+	ram_table->blRampStart =
+		cpu_to_be16(params.backlight_ramping_start);
+
+	ram_table->min_reduction[0][0] = min_reduction_table[abm_config[set][0]];
+	ram_table->min_reduction[1][0] = min_reduction_table[abm_config[set][0]];
+	ram_table->min_reduction[2][0] = min_reduction_table[abm_config[set][0]];
+	ram_table->min_reduction[3][0] = min_reduction_table[abm_config[set][0]];
+	ram_table->min_reduction[4][0] = min_reduction_table[abm_config[set][0]];
+	ram_table->max_reduction[0][0] = max_reduction_table[abm_config[set][0]];
+	ram_table->max_reduction[1][0] = max_reduction_table[abm_config[set][0]];
+	ram_table->max_reduction[2][0] = max_reduction_table[abm_config[set][0]];
+	ram_table->max_reduction[3][0] = max_reduction_table[abm_config[set][0]];
+	ram_table->max_reduction[4][0] = max_reduction_table[abm_config[set][0]];
+
+	ram_table->min_reduction[0][1] = min_reduction_table[abm_config[set][1]];
+	ram_table->min_reduction[1][1] = min_reduction_table[abm_config[set][1]];
+	ram_table->min_reduction[2][1] = min_reduction_table[abm_config[set][1]];
+	ram_table->min_reduction[3][1] = min_reduction_table[abm_config[set][1]];
+	ram_table->min_reduction[4][1] = min_reduction_table[abm_config[set][1]];
+	ram_table->max_reduction[0][1] = max_reduction_table[abm_config[set][1]];
+	ram_table->max_reduction[1][1] = max_reduction_table[abm_config[set][1]];
+	ram_table->max_reduction[2][1] = max_reduction_table[abm_config[set][1]];
+	ram_table->max_reduction[3][1] = max_reduction_table[abm_config[set][1]];
+	ram_table->max_reduction[4][1] = max_reduction_table[abm_config[set][1]];
+
+	ram_table->min_reduction[0][2] = min_reduction_table[abm_config[set][2]];
+	ram_table->min_reduction[1][2] = min_reduction_table[abm_config[set][2]];
+	ram_table->min_reduction[2][2] = min_reduction_table[abm_config[set][2]];
+	ram_table->min_reduction[3][2] = min_reduction_table[abm_config[set][2]];
+	ram_table->min_reduction[4][2] = min_reduction_table[abm_config[set][2]];
+	ram_table->max_reduction[0][2] = max_reduction_table[abm_config[set][2]];
+	ram_table->max_reduction[1][2] = max_reduction_table[abm_config[set][2]];
+	ram_table->max_reduction[2][2] = max_reduction_table[abm_config[set][2]];
+	ram_table->max_reduction[3][2] = max_reduction_table[abm_config[set][2]];
+	ram_table->max_reduction[4][2] = max_reduction_table[abm_config[set][2]];
+
+	ram_table->min_reduction[0][3] = min_reduction_table[abm_config[set][3]];
+	ram_table->min_reduction[1][3] = min_reduction_table[abm_config[set][3]];
+	ram_table->min_reduction[2][3] = min_reduction_table[abm_config[set][3]];
+	ram_table->min_reduction[3][3] = min_reduction_table[abm_config[set][3]];
+	ram_table->min_reduction[4][3] = min_reduction_table[abm_config[set][3]];
+	ram_table->max_reduction[0][3] = max_reduction_table[abm_config[set][3]];
+	ram_table->max_reduction[1][3] = max_reduction_table[abm_config[set][3]];
+	ram_table->max_reduction[2][3] = max_reduction_table[abm_config[set][3]];
+	ram_table->max_reduction[3][3] = max_reduction_table[abm_config[set][3]];
+	ram_table->max_reduction[4][3] = max_reduction_table[abm_config[set][3]];
+
+	ram_table->bright_pos_gain[0][0] = 0x20;
+	ram_table->bright_pos_gain[0][1] = 0x20;
+	ram_table->bright_pos_gain[0][2] = 0x20;
+	ram_table->bright_pos_gain[0][3] = 0x20;
+	ram_table->bright_pos_gain[1][0] = 0x20;
+	ram_table->bright_pos_gain[1][1] = 0x20;
+	ram_table->bright_pos_gain[1][2] = 0x20;
+	ram_table->bright_pos_gain[1][3] = 0x20;
+	ram_table->bright_pos_gain[2][0] = 0x20;
+	ram_table->bright_pos_gain[2][1] = 0x20;
+	ram_table->bright_pos_gain[2][2] = 0x20;
+	ram_table->bright_pos_gain[2][3] = 0x20;
+	ram_table->bright_pos_gain[3][0] = 0x20;
+	ram_table->bright_pos_gain[3][1] = 0x20;
+	ram_table->bright_pos_gain[3][2] = 0x20;
+	ram_table->bright_pos_gain[3][3] = 0x20;
+	ram_table->bright_pos_gain[4][0] = 0x20;
+	ram_table->bright_pos_gain[4][1] = 0x20;
+	ram_table->bright_pos_gain[4][2] = 0x20;
+	ram_table->bright_pos_gain[4][3] = 0x20;
+	ram_table->bright_neg_gain[0][1] = 0x00;
+	ram_table->bright_neg_gain[0][2] = 0x00;
+	ram_table->bright_neg_gain[0][3] = 0x00;
+	ram_table->bright_neg_gain[1][0] = 0x00;
+	ram_table->bright_neg_gain[1][1] = 0x00;
+	ram_table->bright_neg_gain[1][2] = 0x00;
+	ram_table->bright_neg_gain[1][3] = 0x00;
+	ram_table->bright_neg_gain[2][0] = 0x00;
+	ram_table->bright_neg_gain[2][1] = 0x00;
+	ram_table->bright_neg_gain[2][2] = 0x00;
+	ram_table->bright_neg_gain[2][3] = 0x00;
+	ram_table->bright_neg_gain[3][0] = 0x00;
+	ram_table->bright_neg_gain[3][1] = 0x00;
+	ram_table->bright_neg_gain[3][2] = 0x00;
+	ram_table->bright_neg_gain[3][3] = 0x00;
+	ram_table->bright_neg_gain[4][0] = 0x00;
+	ram_table->bright_neg_gain[4][1] = 0x00;
+	ram_table->bright_neg_gain[4][2] = 0x00;
+	ram_table->bright_neg_gain[4][3] = 0x00;
+	ram_table->dark_pos_gain[0][0] = 0x00;
+	ram_table->dark_pos_gain[0][1] = 0x00;
+	ram_table->dark_pos_gain[0][2] = 0x00;
+	ram_table->dark_pos_gain[0][3] = 0x00;
+	ram_table->dark_pos_gain[1][0] = 0x00;
+	ram_table->dark_pos_gain[1][1] = 0x00;
+	ram_table->dark_pos_gain[1][2] = 0x00;
+	ram_table->dark_pos_gain[1][3] = 0x00;
+	ram_table->dark_pos_gain[2][0] = 0x00;
+	ram_table->dark_pos_gain[2][1] = 0x00;
+	ram_table->dark_pos_gain[2][2] = 0x00;
+	ram_table->dark_pos_gain[2][3] = 0x00;
+	ram_table->dark_pos_gain[3][0] = 0x00;
+	ram_table->dark_pos_gain[3][1] = 0x00;
+	ram_table->dark_pos_gain[3][2] = 0x00;
+	ram_table->dark_pos_gain[3][3] = 0x00;
+	ram_table->dark_pos_gain[4][0] = 0x00;
+	ram_table->dark_pos_gain[4][1] = 0x00;
+	ram_table->dark_pos_gain[4][2] = 0x00;
+	ram_table->dark_pos_gain[4][3] = 0x00;
+	ram_table->dark_neg_gain[0][0] = 0x00;
+	ram_table->dark_neg_gain[0][1] = 0x00;
+	ram_table->dark_neg_gain[0][2] = 0x00;
+	ram_table->dark_neg_gain[0][3] = 0x00;
+	ram_table->dark_neg_gain[1][0] = 0x00;
+	ram_table->dark_neg_gain[1][1] = 0x00;
+	ram_table->dark_neg_gain[1][2] = 0x00;
+	ram_table->dark_neg_gain[1][3] = 0x00;
+	ram_table->dark_neg_gain[2][0] = 0x00;
+	ram_table->dark_neg_gain[2][1] = 0x00;
+	ram_table->dark_neg_gain[2][2] = 0x00;
+	ram_table->dark_neg_gain[2][3] = 0x00;
+	ram_table->dark_neg_gain[3][0] = 0x00;
+	ram_table->dark_neg_gain[3][1] = 0x00;
+	ram_table->dark_neg_gain[3][2] = 0x00;
+	ram_table->dark_neg_gain[3][3] = 0x00;
+	ram_table->dark_neg_gain[4][0] = 0x00;
+	ram_table->dark_neg_gain[4][1] = 0x00;
+	ram_table->dark_neg_gain[4][2] = 0x00;
+	ram_table->dark_neg_gain[4][3] = 0x00;
+
+	ram_table->iir_curve[0] = 0x65;
+	ram_table->iir_curve[1] = 0x65;
+	ram_table->iir_curve[2] = 0x65;
+	ram_table->iir_curve[3] = 0x65;
+	ram_table->iir_curve[4] = 0x65;
+
+	//Gamma 2.4
+	ram_table->crgb_thresh[0] = cpu_to_be16(0x13b6);
+	ram_table->crgb_thresh[1] = cpu_to_be16(0x1648);
+	ram_table->crgb_thresh[2] = cpu_to_be16(0x18e3);
+	ram_table->crgb_thresh[3] = cpu_to_be16(0x1b41);
+	ram_table->crgb_thresh[4] = cpu_to_be16(0x1d46);
+	ram_table->crgb_thresh[5] = cpu_to_be16(0x1f21);
+	ram_table->crgb_thresh[6] = cpu_to_be16(0x2167);
+	ram_table->crgb_thresh[7] = cpu_to_be16(0x2384);
+	ram_table->crgb_offset[0] = cpu_to_be16(0x2999);
+	ram_table->crgb_offset[1] = cpu_to_be16(0x3999);
+	ram_table->crgb_offset[2] = cpu_to_be16(0x4666);
+	ram_table->crgb_offset[3] = cpu_to_be16(0x5999);
+	ram_table->crgb_offset[4] = cpu_to_be16(0x6333);
+	ram_table->crgb_offset[5] = cpu_to_be16(0x7800);
+	ram_table->crgb_offset[6] = cpu_to_be16(0x8c00);
+	ram_table->crgb_offset[7] = cpu_to_be16(0xa000);
+	ram_table->crgb_slope[0]  = cpu_to_be16(0x3147);
+	ram_table->crgb_slope[1]  = cpu_to_be16(0x2978);
+	ram_table->crgb_slope[2]  = cpu_to_be16(0x23a2);
+	ram_table->crgb_slope[3]  = cpu_to_be16(0x1f55);
+	ram_table->crgb_slope[4]  = cpu_to_be16(0x1c63);
+	ram_table->crgb_slope[5]  = cpu_to_be16(0x1a0f);
+	ram_table->crgb_slope[6]  = cpu_to_be16(0x178d);
+	ram_table->crgb_slope[7]  = cpu_to_be16(0x15ab);
+
+	fill_backlight_transform_table(
+			params, ram_table);
+}
+
+void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params)
+{
+	unsigned int set = params.set;
+
+	ram_table->flags = 0x0;
+
+	ram_table->deviation_gain[0] = 0xb3;
+	ram_table->deviation_gain[1] = 0xb3;
+	ram_table->deviation_gain[2] = 0xb3;
+	ram_table->deviation_gain[3] = 0xb3;
+
+	ram_table->blRampReduction =
+		cpu_to_be16(params.backlight_ramping_reduction);
+	ram_table->blRampStart =
+		cpu_to_be16(params.backlight_ramping_start);
+
+	ram_table->min_reduction[0][0] = min_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->min_reduction[1][0] = min_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->min_reduction[2][0] = min_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->min_reduction[3][0] = min_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->min_reduction[4][0] = min_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->max_reduction[0][0] = max_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->max_reduction[1][0] = max_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->max_reduction[2][0] = max_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->max_reduction[3][0] = max_reduction_table_v_2_2[abm_config[set][0]];
+	ram_table->max_reduction[4][0] = max_reduction_table_v_2_2[abm_config[set][0]];
+
+	ram_table->min_reduction[0][1] = min_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->min_reduction[1][1] = min_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->min_reduction[2][1] = min_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->min_reduction[3][1] = min_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->min_reduction[4][1] = min_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->max_reduction[0][1] = max_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->max_reduction[1][1] = max_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->max_reduction[2][1] = max_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->max_reduction[3][1] = max_reduction_table_v_2_2[abm_config[set][1]];
+	ram_table->max_reduction[4][1] = max_reduction_table_v_2_2[abm_config[set][1]];
+
+	ram_table->min_reduction[0][2] = min_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->min_reduction[1][2] = min_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->min_reduction[2][2] = min_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->min_reduction[3][2] = min_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->min_reduction[4][2] = min_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->max_reduction[0][2] = max_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->max_reduction[1][2] = max_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->max_reduction[2][2] = max_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->max_reduction[3][2] = max_reduction_table_v_2_2[abm_config[set][2]];
+	ram_table->max_reduction[4][2] = max_reduction_table_v_2_2[abm_config[set][2]];
+
+	ram_table->min_reduction[0][3] = min_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->min_reduction[1][3] = min_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->min_reduction[2][3] = min_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->min_reduction[3][3] = min_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->min_reduction[4][3] = min_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->max_reduction[0][3] = max_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->max_reduction[1][3] = max_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->max_reduction[2][3] = max_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->max_reduction[3][3] = max_reduction_table_v_2_2[abm_config[set][3]];
+	ram_table->max_reduction[4][3] = max_reduction_table_v_2_2[abm_config[set][3]];
+
+	ram_table->bright_pos_gain[0][0] = 0x20;
+	ram_table->bright_pos_gain[0][1] = 0x20;
+	ram_table->bright_pos_gain[0][2] = 0x20;
+	ram_table->bright_pos_gain[0][3] = 0x20;
+	ram_table->bright_pos_gain[1][0] = 0x20;
+	ram_table->bright_pos_gain[1][1] = 0x20;
+	ram_table->bright_pos_gain[1][2] = 0x20;
+	ram_table->bright_pos_gain[1][3] = 0x20;
+	ram_table->bright_pos_gain[2][0] = 0x20;
+	ram_table->bright_pos_gain[2][1] = 0x20;
+	ram_table->bright_pos_gain[2][2] = 0x20;
+	ram_table->bright_pos_gain[2][3] = 0x20;
+	ram_table->bright_pos_gain[3][0] = 0x20;
+	ram_table->bright_pos_gain[3][1] = 0x20;
+	ram_table->bright_pos_gain[3][2] = 0x20;
+	ram_table->bright_pos_gain[3][3] = 0x20;
+	ram_table->bright_pos_gain[4][0] = 0x20;
+	ram_table->bright_pos_gain[4][1] = 0x20;
+	ram_table->bright_pos_gain[4][2] = 0x20;
+	ram_table->bright_pos_gain[4][3] = 0x20;
+
+	ram_table->dark_pos_gain[0][0] = 0x00;
+	ram_table->dark_pos_gain[0][1] = 0x00;
+	ram_table->dark_pos_gain[0][2] = 0x00;
+	ram_table->dark_pos_gain[0][3] = 0x00;
+	ram_table->dark_pos_gain[1][0] = 0x00;
+	ram_table->dark_pos_gain[1][1] = 0x00;
+	ram_table->dark_pos_gain[1][2] = 0x00;
+	ram_table->dark_pos_gain[1][3] = 0x00;
+	ram_table->dark_pos_gain[2][0] = 0x00;
+	ram_table->dark_pos_gain[2][1] = 0x00;
+	ram_table->dark_pos_gain[2][2] = 0x00;
+	ram_table->dark_pos_gain[2][3] = 0x00;
+	ram_table->dark_pos_gain[3][0] = 0x00;
+	ram_table->dark_pos_gain[3][1] = 0x00;
+	ram_table->dark_pos_gain[3][2] = 0x00;
+	ram_table->dark_pos_gain[3][3] = 0x00;
+	ram_table->dark_pos_gain[4][0] = 0x00;
+	ram_table->dark_pos_gain[4][1] = 0x00;
+	ram_table->dark_pos_gain[4][2] = 0x00;
+	ram_table->dark_pos_gain[4][3] = 0x00;
+
+	ram_table->hybridFactor[0] = 0xff;
+	ram_table->hybridFactor[1] = 0xff;
+	ram_table->hybridFactor[2] = 0xff;
+	ram_table->hybridFactor[3] = 0xc0;
+
+	ram_table->contrastFactor[0] = 0x99;
+	ram_table->contrastFactor[1] = 0x80;
+	ram_table->contrastFactor[2] = 0x80;
+	ram_table->contrastFactor[3] = 0x4D;
+
+	ram_table->iir_curve[0] = 0x65;
+	ram_table->iir_curve[1] = 0x65;
+	ram_table->iir_curve[2] = 0x65;
+	ram_table->iir_curve[3] = 0x65;
+	ram_table->iir_curve[4] = 0x65;
+
+	//Gamma 2.2
+	ram_table->crgb_thresh[0] = cpu_to_be16(0x127c);
+	ram_table->crgb_thresh[1] = cpu_to_be16(0x151b);
+	ram_table->crgb_thresh[2] = cpu_to_be16(0x17d5);
+	ram_table->crgb_thresh[3] = cpu_to_be16(0x1a56);
+	ram_table->crgb_thresh[4] = cpu_to_be16(0x1c83);
+	ram_table->crgb_thresh[5] = cpu_to_be16(0x1e72);
+	ram_table->crgb_thresh[6] = cpu_to_be16(0x20f0);
+	ram_table->crgb_thresh[7] = cpu_to_be16(0x232b);
+	ram_table->crgb_offset[0] = cpu_to_be16(0x2999);
+	ram_table->crgb_offset[1] = cpu_to_be16(0x3999);
+	ram_table->crgb_offset[2] = cpu_to_be16(0x4666);
+	ram_table->crgb_offset[3] = cpu_to_be16(0x5999);
+	ram_table->crgb_offset[4] = cpu_to_be16(0x6333);
+	ram_table->crgb_offset[5] = cpu_to_be16(0x7800);
+	ram_table->crgb_offset[6] = cpu_to_be16(0x8c00);
+	ram_table->crgb_offset[7] = cpu_to_be16(0xa000);
+	ram_table->crgb_slope[0]  = cpu_to_be16(0x3609);
+	ram_table->crgb_slope[1]  = cpu_to_be16(0x2dfa);
+	ram_table->crgb_slope[2]  = cpu_to_be16(0x27ea);
+	ram_table->crgb_slope[3]  = cpu_to_be16(0x235d);
+	ram_table->crgb_slope[4]  = cpu_to_be16(0x2042);
+	ram_table->crgb_slope[5]  = cpu_to_be16(0x1dc3);
+	ram_table->crgb_slope[6]  = cpu_to_be16(0x1b1a);
+	ram_table->crgb_slope[7]  = cpu_to_be16(0x1910);
+
+	fill_backlight_transform_table_v_2_2(
+			params, ram_table);
+}
+
 bool dmcu_load_iram(struct dmcu *dmcu,
 	struct dmcu_iram_parameters params)
 {
-	struct iram_table_v_2 ram_table;
-	unsigned int set = params.set;
+	unsigned char ram_table[IRAM_SIZE];
 
 	if (dmcu == NULL)
 		return false;
@@ -159,169 +570,11 @@ bool dmcu_load_iram(struct dmcu *dmcu,
 
 	memset(&ram_table, 0, sizeof(ram_table));
 
-	ram_table.flags = 0x0;
-	ram_table.deviation_gain = 0xb3;
-
-	ram_table.blRampReduction =
-		cpu_to_be16(params.backlight_ramping_reduction);
-	ram_table.blRampStart =
-		cpu_to_be16(params.backlight_ramping_start);
-
-	ram_table.min_reduction[0][0] = min_reduction_table[abm_config[set][0]];
-	ram_table.min_reduction[1][0] = min_reduction_table[abm_config[set][0]];
-	ram_table.min_reduction[2][0] = min_reduction_table[abm_config[set][0]];
-	ram_table.min_reduction[3][0] = min_reduction_table[abm_config[set][0]];
-	ram_table.min_reduction[4][0] = min_reduction_table[abm_config[set][0]];
-	ram_table.max_reduction[0][0] = max_reduction_table[abm_config[set][0]];
-	ram_table.max_reduction[1][0] = max_reduction_table[abm_config[set][0]];
-	ram_table.max_reduction[2][0] = max_reduction_table[abm_config[set][0]];
-	ram_table.max_reduction[3][0] = max_reduction_table[abm_config[set][0]];
-	ram_table.max_reduction[4][0] = max_reduction_table[abm_config[set][0]];
-
-	ram_table.min_reduction[0][1] = min_reduction_table[abm_config[set][1]];
-	ram_table.min_reduction[1][1] = min_reduction_table[abm_config[set][1]];
-	ram_table.min_reduction[2][1] = min_reduction_table[abm_config[set][1]];
-	ram_table.min_reduction[3][1] = min_reduction_table[abm_config[set][1]];
-	ram_table.min_reduction[4][1] = min_reduction_table[abm_config[set][1]];
-	ram_table.max_reduction[0][1] = max_reduction_table[abm_config[set][1]];
-	ram_table.max_reduction[1][1] = max_reduction_table[abm_config[set][1]];
-	ram_table.max_reduction[2][1] = max_reduction_table[abm_config[set][1]];
-	ram_table.max_reduction[3][1] = max_reduction_table[abm_config[set][1]];
-	ram_table.max_reduction[4][1] = max_reduction_table[abm_config[set][1]];
-
-	ram_table.min_reduction[0][2] = min_reduction_table[abm_config[set][2]];
-	ram_table.min_reduction[1][2] = min_reduction_table[abm_config[set][2]];
-	ram_table.min_reduction[2][2] = min_reduction_table[abm_config[set][2]];
-	ram_table.min_reduction[3][2] = min_reduction_table[abm_config[set][2]];
-	ram_table.min_reduction[4][2] = min_reduction_table[abm_config[set][2]];
-	ram_table.max_reduction[0][2] = max_reduction_table[abm_config[set][2]];
-	ram_table.max_reduction[1][2] = max_reduction_table[abm_config[set][2]];
-	ram_table.max_reduction[2][2] = max_reduction_table[abm_config[set][2]];
-	ram_table.max_reduction[3][2] = max_reduction_table[abm_config[set][2]];
-	ram_table.max_reduction[4][2] = max_reduction_table[abm_config[set][2]];
-
-	ram_table.min_reduction[0][3] = min_reduction_table[abm_config[set][3]];
-	ram_table.min_reduction[1][3] = min_reduction_table[abm_config[set][3]];
-	ram_table.min_reduction[2][3] = min_reduction_table[abm_config[set][3]];
-	ram_table.min_reduction[3][3] = min_reduction_table[abm_config[set][3]];
-	ram_table.min_reduction[4][3] = min_reduction_table[abm_config[set][3]];
-	ram_table.max_reduction[0][3] = max_reduction_table[abm_config[set][3]];
-	ram_table.max_reduction[1][3] = max_reduction_table[abm_config[set][3]];
-	ram_table.max_reduction[2][3] = max_reduction_table[abm_config[set][3]];
-	ram_table.max_reduction[3][3] = max_reduction_table[abm_config[set][3]];
-	ram_table.max_reduction[4][3] = max_reduction_table[abm_config[set][3]];
-
-	ram_table.bright_pos_gain[0][0] = 0x20;
-	ram_table.bright_pos_gain[0][1] = 0x20;
-	ram_table.bright_pos_gain[0][2] = 0x20;
-	ram_table.bright_pos_gain[0][3] = 0x20;
-	ram_table.bright_pos_gain[1][0] = 0x20;
-	ram_table.bright_pos_gain[1][1] = 0x20;
-	ram_table.bright_pos_gain[1][2] = 0x20;
-	ram_table.bright_pos_gain[1][3] = 0x20;
-	ram_table.bright_pos_gain[2][0] = 0x20;
-	ram_table.bright_pos_gain[2][1] = 0x20;
-	ram_table.bright_pos_gain[2][2] = 0x20;
-	ram_table.bright_pos_gain[2][3] = 0x20;
-	ram_table.bright_pos_gain[3][0] = 0x20;
-	ram_table.bright_pos_gain[3][1] = 0x20;
-	ram_table.bright_pos_gain[3][2] = 0x20;
-	ram_table.bright_pos_gain[3][3] = 0x20;
-	ram_table.bright_pos_gain[4][0] = 0x20;
-	ram_table.bright_pos_gain[4][1] = 0x20;
-	ram_table.bright_pos_gain[4][2] = 0x20;
-	ram_table.bright_pos_gain[4][3] = 0x20;
-	ram_table.bright_neg_gain[0][1] = 0x00;
-	ram_table.bright_neg_gain[0][2] = 0x00;
-	ram_table.bright_neg_gain[0][3] = 0x00;
-	ram_table.bright_neg_gain[1][0] = 0x00;
-	ram_table.bright_neg_gain[1][1] = 0x00;
-	ram_table.bright_neg_gain[1][2] = 0x00;
-	ram_table.bright_neg_gain[1][3] = 0x00;
-	ram_table.bright_neg_gain[2][0] = 0x00;
-	ram_table.bright_neg_gain[2][1] = 0x00;
-	ram_table.bright_neg_gain[2][2] = 0x00;
-	ram_table.bright_neg_gain[2][3] = 0x00;
-	ram_table.bright_neg_gain[3][0] = 0x00;
-	ram_table.bright_neg_gain[3][1] = 0x00;
-	ram_table.bright_neg_gain[3][2] = 0x00;
-	ram_table.bright_neg_gain[3][3] = 0x00;
-	ram_table.bright_neg_gain[4][0] = 0x00;
-	ram_table.bright_neg_gain[4][1] = 0x00;
-	ram_table.bright_neg_gain[4][2] = 0x00;
-	ram_table.bright_neg_gain[4][3] = 0x00;
-	ram_table.dark_pos_gain[0][0] = 0x00;
-	ram_table.dark_pos_gain[0][1] = 0x00;
-	ram_table.dark_pos_gain[0][2] = 0x00;
-	ram_table.dark_pos_gain[0][3] = 0x00;
-	ram_table.dark_pos_gain[1][0] = 0x00;
-	ram_table.dark_pos_gain[1][1] = 0x00;
-	ram_table.dark_pos_gain[1][2] = 0x00;
-	ram_table.dark_pos_gain[1][3] = 0x00;
-	ram_table.dark_pos_gain[2][0] = 0x00;
-	ram_table.dark_pos_gain[2][1] = 0x00;
-	ram_table.dark_pos_gain[2][2] = 0x00;
-	ram_table.dark_pos_gain[2][3] = 0x00;
-	ram_table.dark_pos_gain[3][0] = 0x00;
-	ram_table.dark_pos_gain[3][1] = 0x00;
-	ram_table.dark_pos_gain[3][2] = 0x00;
-	ram_table.dark_pos_gain[3][3] = 0x00;
-	ram_table.dark_pos_gain[4][0] = 0x00;
-	ram_table.dark_pos_gain[4][1] = 0x00;
-	ram_table.dark_pos_gain[4][2] = 0x00;
-	ram_table.dark_pos_gain[4][3] = 0x00;
-	ram_table.dark_neg_gain[0][0] = 0x00;
-	ram_table.dark_neg_gain[0][1] = 0x00;
-	ram_table.dark_neg_gain[0][2] = 0x00;
-	ram_table.dark_neg_gain[0][3] = 0x00;
-	ram_table.dark_neg_gain[1][0] = 0x00;
-	ram_table.dark_neg_gain[1][1] = 0x00;
-	ram_table.dark_neg_gain[1][2] = 0x00;
-	ram_table.dark_neg_gain[1][3] = 0x00;
-	ram_table.dark_neg_gain[2][0] = 0x00;
-	ram_table.dark_neg_gain[2][1] = 0x00;
-	ram_table.dark_neg_gain[2][2] = 0x00;
-	ram_table.dark_neg_gain[2][3] = 0x00;
-	ram_table.dark_neg_gain[3][0] = 0x00;
-	ram_table.dark_neg_gain[3][1] = 0x00;
-	ram_table.dark_neg_gain[3][2] = 0x00;
-	ram_table.dark_neg_gain[3][3] = 0x00;
-	ram_table.dark_neg_gain[4][0] = 0x00;
-	ram_table.dark_neg_gain[4][1] = 0x00;
-	ram_table.dark_neg_gain[4][2] = 0x00;
-	ram_table.dark_neg_gain[4][3] = 0x00;
-	ram_table.iir_curve[0] = 0x65;
-	ram_table.iir_curve[1] = 0x65;
-	ram_table.iir_curve[2] = 0x65;
-	ram_table.iir_curve[3] = 0x65;
-	ram_table.iir_curve[4] = 0x65;
-	ram_table.crgb_thresh[0] = cpu_to_be16(0x13b6);
-	ram_table.crgb_thresh[1] = cpu_to_be16(0x1648);
-	ram_table.crgb_thresh[2] = cpu_to_be16(0x18e3);
-	ram_table.crgb_thresh[3] = cpu_to_be16(0x1b41);
-	ram_table.crgb_thresh[4] = cpu_to_be16(0x1d46);
-	ram_table.crgb_thresh[5] = cpu_to_be16(0x1f21);
-	ram_table.crgb_thresh[6] = cpu_to_be16(0x2167);
-	ram_table.crgb_thresh[7] = cpu_to_be16(0x2384);
-	ram_table.crgb_offset[0] = cpu_to_be16(0x2999);
-	ram_table.crgb_offset[1] = cpu_to_be16(0x3999);
-	ram_table.crgb_offset[2] = cpu_to_be16(0x4666);
-	ram_table.crgb_offset[3] = cpu_to_be16(0x5999);
-	ram_table.crgb_offset[4] = cpu_to_be16(0x6333);
-	ram_table.crgb_offset[5] = cpu_to_be16(0x7800);
-	ram_table.crgb_offset[6] = cpu_to_be16(0x8c00);
-	ram_table.crgb_offset[7] = cpu_to_be16(0xa000);
-	ram_table.crgb_slope[0]  = cpu_to_be16(0x3147);
-	ram_table.crgb_slope[1]  = cpu_to_be16(0x2978);
-	ram_table.crgb_slope[2]  = cpu_to_be16(0x23a2);
-	ram_table.crgb_slope[3]  = cpu_to_be16(0x1f55);
-	ram_table.crgb_slope[4]  = cpu_to_be16(0x1c63);
-	ram_table.crgb_slope[5]  = cpu_to_be16(0x1a0f);
-	ram_table.crgb_slope[6]  = cpu_to_be16(0x178d);
-	ram_table.crgb_slope[7]  = cpu_to_be16(0x15ab);
-
-	fill_backlight_transform_table(
-			params, &ram_table);
+	if (dmcu->dmcu_version.abm_version == 0x22) {
+		fill_iram_v_2_2((struct iram_table_v_2_2 *)ram_table, params);
+	} else {
+		fill_iram_v_2((struct iram_table_v_2 *)ram_table, params);
+	}
 
 	return dmcu->funcs->load_iram(
 			dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START);