From: Josip Pavic Date: Fri, 22 Feb 2019 21:55:08 +0000 (-0500) Subject: drm/amd/display: reduce abm min reduction, deviation gain and contrast factor X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=6aac37daeb6228cabbd62ed5a39a6eae835682c8;p=android-x86%2Fkernel.git drm/amd/display: reduce abm min reduction, deviation gain and contrast factor [Why] Increased power savings are desired for ABM 2.2. [How] Reduce the minimum reduction level, the deviation gain and the contrast factor to allow for more aggressive operation of the algorithm. Signed-off-by: Josip Pavic Reviewed-by: Anthony Koo Acked-by: Leo Li Signed-off-by: Alex Deucher --- 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 038b88221c5f..efd386f3ca53 100644 --- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c +++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c @@ -41,9 +41,12 @@ 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)*/ +/* Possible ABM 2.2 Min Reduction configs from least aggressive to most aggressive + * 0 1 2 3 4 5 6 7 8 9 10 11 12 + * 100 100 100 100 100 100 100 90.2 85.1 80.0 80.0 75.3 75.3 % + */ static const unsigned char min_reduction_table_v_2_2[13] = { -0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; +0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe6, 0xd9, 0xcc, 0xcc, 0xc0, 0xc0}; /* 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 @@ -408,9 +411,9 @@ void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parame 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->deviation_gain[1] = 0xa8; + ram_table->deviation_gain[2] = 0x98; + ram_table->deviation_gain[3] = 0x68; 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]]; @@ -505,7 +508,7 @@ void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parame ram_table->contrastFactor[0] = 0x99; ram_table->contrastFactor[1] = 0x99; - ram_table->contrastFactor[2] = 0x99; + ram_table->contrastFactor[2] = 0x90; ram_table->contrastFactor[3] = 0x80; ram_table->iir_curve[0] = 0x65;