[PATCH 1/5] tools/amd_hdmi_compliance: Additional functionalities

Rodrigo Siqueira Jordao Rodrigo.Siqueira at amd.com
Tue Oct 29 16:01:11 UTC 2024



On 10/24/24 3:03 PM, Alex Hung wrote:
> From: Wayne Lin <Wayne.Lin at amd.com>
> 
> It needs different timings, pixel format and color depth combination
> to pass CTS under different HDMI versions. As the result, we extend
> this to:
> 
> - Add additional timings and info. Especially aspect ratio which
>    will impact the VIC code.
> - Can specify the connector to display the test pattern.
> - Set connector property "max bpc" to force bpc.
> - Set connector debugfs entry "force_yuv420_output" to enable
>    using yuv420 pixel format.
> 
> Signed-off-by: Wayne Lin <wayne.lin at amd.com>
> Signed-off-by: Alex Hung <alex.hung at amd.com>
> Signed-off-by: Stylon Wang <stylon.wang at amd.com>
> ---
>   tools/amd_hdmi_compliance.c | 422 ++++++++++++++++++++++++++++++++----
>   1 file changed, 380 insertions(+), 42 deletions(-)
> 
> diff --git a/tools/amd_hdmi_compliance.c b/tools/amd_hdmi_compliance.c
> index 1a7592995..633d980bc 100644
> --- a/tools/amd_hdmi_compliance.c
> +++ b/tools/amd_hdmi_compliance.c
> @@ -21,6 +21,8 @@
>    */
>   
>   #include "igt.h"
> +#include "igt_sysfs.h"
> +#include <fcntl.h>
>   
>   /* Common test data */
>   typedef struct data {
> @@ -36,52 +38,328 @@ typedef struct data {
>   
>   /* Video modes indexed by VIC */
>   static drmModeModeInfo test_modes[] = {
> -	[1] = { 25175,
> +	[0] = { 25175,
>   		640, 656, 752, 800, 0,
>   		480, 489, 492, 525, 0,
> -		60, 0xa, 0x40,
> -		"640x480",	/* VIC 1 */
> +		60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_4_3,
> +		0x40, "640x480",	/* VIC 0 */
> +	},
> +	[1] = { 25175,
> +		640, 656, 752, 800, 0,
> +		480, 490, 492, 525, 0,
> +		60, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_PIC_AR_4_3,
> +		0x40, "640x480",	/* VIC 1 */
> +	},
> +	[2] = { 27000,
> +		720, 736, 798, 858, 0,
> +		480, 489, 495, 525, 0,
> +		60, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_PIC_AR_4_3,
> +		0x40, "720x480",	/* VIC 2 */
> +	},
> +	[3] = { 27000,
> +		720, 736, 798, 858, 0,
> +		480, 489, 495, 525, 0,
> +		60, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "720x480",	/* VIC 3 */
> +	},
> +	[4] = { 74250,
> +		1280, 1390, 1430, 1650, 0,
> +		720, 725, 730, 750, 0,
> +		60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "1280x720",	/* VIC 4 */
> +	},
> +	[16] = { 148500,
> +		1920, 2008, 2052, 2200, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "1920x1080",	/* VIC 16 */
> +	},
> +	[17] = { 27000,
> +		720, 732, 796, 864, 0,
> +		576, 581, 586, 625, 0,
> +		60, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_PIC_AR_4_3,
> +		0x40, "720x576",	/* VIC 17 */
> +	},
> +	[18] = { 27000,
> +		720, 732, 796, 864, 0,
> +		576, 581, 586, 625, 0,
> +		60, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "720x576",	/* VIC 18 */
> +	},
> +	[19] = { 74250,
> +		1280, 1720, 1760, 1980, 0,
> +		720, 725, 730, 750, 0,
> +		50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "1280x720",	/* VIC 19 */
> +	},
> +	[31] = { 148500,
> +		1920, 2448, 2492, 2640, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "1920x1080",	/* VIC 31 */
> +	},
> +	[63] = { 297000,
> +		1920, 2008, 2052, 2200, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		120, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "1920x1080",	/* VIC 63 */
> +	},
> +	[64] = { 297000,
> +		1920, 2448, 2492, 2640, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		100, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "1920x1080",	/* VIC 64 */
> +	},
> +	[65] = { 59400,
> +		1280, 3040, 3080, 3300, 0,
> +		720, 725, 730, 750, 0,
> +		24, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1280x720",	/* VIC 65 */
> +	},
> +	[66] = { 74250,
> +		1280, 3700, 3740, 3960, 0,
> +		720, 725, 730, 750, 0,
> +		25, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1280x720",	/* VIC 66 */
> +	},
> +	[67] = { 74250,
> +		1280, 3040, 3080, 3300, 0,
> +		720, 725, 730, 750, 0,
> +		30, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1280x720",	/* VIC 67 */
> +	},
> +	[68] = { 74250,
> +		1280, 1720, 1760, 1980, 0,
> +		720, 725, 730, 750, 0,
> +		50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1280x720",	/* VIC 68 */
> +	},
> +	[69] = { 74250,
> +		1280, 1390, 1430, 1650, 0,
> +		720, 725, 730, 750, 0,
> +		60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1280x720",	/* VIC 69 */
> +	},
> +	[70] = { 148500,
> +		1280, 1720, 1760, 1980, 0,
> +		720, 725, 730, 750, 0,
> +		100, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1280x720",	/* VIC 70 */
> +	},
> +	[71] = { 148500,
> +		1280, 1390, 1430, 1650, 0,
> +		720, 725, 730, 750, 0,
> +		120, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1280x720",	/* VIC 71 */
> +	},
> +	[72] = { 74250,
> +		1920, 2558, 2602, 2750, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		24, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1920x1080",	/* VIC 72 */
> +	},
> +	[73] = { 74250,
> +		1920, 2448, 2492, 2640, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		25, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1920x1080",	/* VIC 74 */
> +	},
> +	[74] = { 74250,
> +		1920, 2008, 2052, 2200, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		30, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1920x1080",	/* VIC 74 */
> +	},
> +	[75] = { 148500,
> +		1920, 2448, 2492, 2640, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1920x1080",	/* VIC 75 */
> +	},
> +	[76] = { 148500,
> +		1920, 2008, 2052, 2200, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1920x1080",	/* VIC 76 */
> +	},
> +	[77] = { 297000,
> +		1920, 2448, 2492, 2640, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1920x1080",	/* VIC 77 */
> +	},
> +	[78] = { 297000,
> +		1920, 2008, 2052, 2200, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1920x1080",	/* VIC 78 */
> +	},
> +	[79] = { 59400,
> +		1680, 3040, 3080, 3300, 0,
> +		720, 725, 730, 750, 0,
> +		24, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1680x720",	/* VIC 79 */
> +	},
> +	[80] = { 59400,
> +		1680, 2908, 2948, 3168, 0,
> +		720, 725, 730, 750, 0,
> +		25, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1680x720",	/* VIC 80 */
> +	},
> +	[81] = { 59400,
> +		1680, 2380, 2420, 2640, 0,
> +		720, 725, 730, 750, 0,
> +		30, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1680x720",	/* VIC 81 */
> +	},
> +	[82] = { 82500,
> +		1680, 1940, 1980, 2200, 0,
> +		720, 725, 730, 750, 0,
> +		50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1680x720",	/* VIC 82 */
> +	},
> +	[83] = { 99000,
> +		1680, 1940, 1980, 2200, 0,
> +		720, 725, 730, 750, 0,
> +		60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1680x720",	/* VIC 83 */
> +	},
> +	[84] = { 165000,
> +		1680, 1740, 1780, 2000, 0,
> +		720, 725, 730, 825, 0,
> +		100, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1680x720",	/* VIC 84 */
> +	},
> +	[85] = { 198000,
> +		1680, 1740, 1780, 2000, 0,
> +		720, 725, 730, 825, 0,
> +		120, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "1680x720",	/* VIC 85 */
> +	},
> +	[86] = { 99000,
> +		2560, 3558, 3602, 3750, 0,
> +		1080, 1084, 1089, 1100, 0,
> +		24, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "2560x1080",	/* VIC 86 */
> +	},
> +	[87] = { 90000,
> +		2560, 3008, 3052, 3200, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		25, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "2560x1080",	/* VIC 87 */
> +	},
> +	[88] = { 118800,
> +		2560, 3328, 3372, 3520, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		30, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "2560x1080",	/* VIC 88 */
> +	},
> +	[89] = { 185625,
> +		2560, 3108, 3152, 3300, 0,
> +		1080, 1084, 1089, 1125, 0,
> +		50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "2560x1080",	/* VIC 89 */
> +	},
> +	[90] = { 198000,
> +		2560, 2808, 2852, 3000, 0,
> +		1080, 1084, 1089, 1100, 0,
> +		60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		0x40, "2560x1080",	/* VIC 90 */
> +	},
> +	[93] = { 297000,
> +		3840, 5116, 5204, 5500, 0,
> +		2160, 2168, 2178, 2250, 0,
> +		24, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "4096x2160",	/* VIC 93 */
> +	},
> +	[94] = { 297000,
> +		3840, 4896, 4984, 5280, 0,
> +		2160, 2168, 2178, 2250, 0,
> +		25, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "3840x2160",	/* VIC 94 */
> +	},
> +	[95] = { 297000,
> +		3840, 4016, 4104, 4400, 0,
> +		2160, 2168, 2178, 2250, 0,
> +		30, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		0x40, "3840x2160",	/* VIC 95 */
>   	},
>   	[96] = { 594000,
>   		 3840, 4896, 4984, 5280, 0,
>   		 2160, 2168, 2178, 2250, 0,
> -		 50, 0x5|DRM_MODE_FLAG_PIC_AR_16_9, 0x40,
> -		 "3840x2160",	/* VIC 96 */
> +		 50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		 0x40, "3840x2160",	/* VIC 96 */
>   	},
>   	[97] = { 594000,
>   		 3840, 4016, 4104, 4400, 0,
>   		 2160, 2168, 2178, 2250, 0,
> -		 60, 0x5|DRM_MODE_FLAG_PIC_AR_16_9, 0x40,
> -		 "3840x2160",	/* VIC 97 */
> +		 60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_16_9,
> +		 0x40, "3840x2160",	/* VIC 97 */
> +	},
> +	[98] = { 297000,
> +		 4096, 5116, 5204, 5500, 0,
> +		 2160, 2168, 2178, 2250, 0,
> +		 24, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_256_135,
> +		 0x40, "4096x2160",	/* VIC 98 */
> +	},
> +	[99] = { 297000,
> +		 4096, 5064, 5152, 5280, 0,
> +		 2160, 2168, 2178, 2250, 0,
> +		 25, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_256_135,
> +		 0x40, "4096x2160",	/* VIC 99 */
> +	},
> +	[100] = { 297000,
> +		 4096, 4184, 4272, 4400, 0,
> +		 2160, 2168, 2178, 2250, 0,
> +		 30, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_256_135,
> +		 0x40, "4096x2160",	/* VIC 100 */
>   	},
>   	[101] = { 594000,
>   		  4096, 5064, 5152, 5280, 0,
>   		  2160, 2168, 2178, 2250, 0,
> -		  50, 0x5|DRM_MODE_FLAG_PIC_AR_256_135, 0x40,
> -		  "4096x2160",	/* VIC 101 */
> +		  50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_256_135,
> +		  0x40, "4096x2160",	/* VIC 101 */
>   	},
>   	[102] = { 594000,
>   		  4096, 4184, 4272, 4400, 0,
>   		  2160, 2168, 2178, 2250, 0,
> -		  60, 0x5|DRM_MODE_FLAG_PIC_AR_256_135, 0x40,
> -		  "4096x2160",	/* VIC 102 */
> +		  60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_256_135,
> +		  0x40, "4096x2160",	/* VIC 102 */
> +	},
> +	[103] = { 297000,
> +		  3840, 5116, 5204, 5500, 0,
> +		  2160, 2168, 2178, 2250, 0,
> +		  24, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		  0x40, "4096x2160",	/* VIC 103 */
> +	},
> +	[104] = { 297000,
> +		  3840, 4896, 4984, 5280, 0,
> +		  2160, 2168, 2178, 2250, 0,
> +		  25, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		  0x40, "3840x2160",	/* VIC 104 */
> +	},
> +	[105] = { 297000,
> +		  3840, 4016, 4104, 4400, 0,
> +		  2160, 2168, 2178, 2250, 0,
> +		  30, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		  0x40, "3840x2160",	/* VIC 105 */
>   	},
>   	[106] = { 594000,
>   		  3840, 4896, 4984, 5280, 0,
>   		  2160, 2168, 2178, 2250, 0,
> -		  50, 0x5|DRM_MODE_FLAG_PIC_AR_64_27, 0x40,
> -		  "3840x2160",	/* VIC 106 */
> +		  50, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		  0x40, "3840x2160",	/* VIC 106 */
>   	},
>   	[107] = { 594000,
>   		  3840, 4016, 4104, 4400, 0,
>   		  2160, 2168, 2178, 2250, 0,
> -		  60, 0x5|DRM_MODE_FLAG_PIC_AR_64_27, 0x40,
> -		  "3840x2160",	/* VIC 107 */
> +		  60, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PIC_AR_64_27,
> +		  0x40, "3840x2160",	/* VIC 107 */
>   	},
>   };
>   
>   /* Common test setup. */
> -static void test_init(data_t *data)
> +static void test_init(data_t *data, int conn_id)
>   {
>   	igt_display_t *display = &data->display;
>   
> @@ -90,19 +368,22 @@ static void test_init(data_t *data)
>   
>   	igt_display_reset(display);
>   
> -	/* find a connected HDMI output */
> +	/* find a connected output */
>   	data->output = NULL;
>   	for (int i=0; i < data->display.n_outputs; ++i) {
> -		drmModeConnector *connector = data->display.outputs[i].config.connector;
> -		if (connector->connection == DRM_MODE_CONNECTED &&
> -				(connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
> -				 (data->use_virtual_connector &&
> -				  connector->connector_type == DRM_MODE_CONNECTOR_VIRTUAL))) {
> +		drmModeConnector *conn = data->display.outputs[i].config.connector;
> +
> +		if ((data->use_virtual_connector &&
> +		     conn->connector_type == DRM_MODE_CONNECTOR_VIRTUAL) ||
> +		    (conn->connector_type == DRM_MODE_CONNECTOR_HDMIA &&
> +		     conn->connection == DRM_MODE_CONNECTED &&
> +		     (conn_id == 0 || conn->connector_id == conn_id))) {
>   			data->output = &data->display.outputs[i];
> +			break;
>   		}
>   	}
>   
> -	igt_require(data->output);
> +	igt_require_f(data->output, "No valid connectors found\n");
>   
>   	data->primary =
>   		igt_pipe_get_plane_type(data->pipe, DRM_PLANE_TYPE_PRIMARY);
> @@ -123,22 +404,57 @@ static void wait_for_keypress(void)
>   		;
>   }
>   
> -static void test_vic_mode(data_t *data, int vic)
> +/* Write 0 or 1 to debugfs entry "force_yuv420_output" of connector */
> +static void set_force_yuv420(data_t *data, int force, int conn_id)
> +{
> +	int fd, res;
> +
> +	test_init(data, conn_id);
> +
> +	igt_info("Setting force_yuv420_output to %d on connector id %d\n",
> +		 force ? 1 : 0, data->output->config.connector->connector_id);
> +
> +	fd = igt_debugfs_connector_dir(data->fd, data->output->name, O_RDONLY);
> +	igt_assert(fd >= 0);
> +
> +	res = igt_sysfs_write(fd, "force_yuv420_output", force ? "1" : "0", 2);
> +	igt_require(res > 0);
> +
> +	close(fd);
> +	test_fini(data);
> +}
> +
> +/* Set "max bpc" property of connector */
> +static void set_max_bpc(data_t *data, int max_bpc, int conn_id)
> +{
> +	igt_display_t *display = &data->display;
> +
> +	test_init(data, conn_id);
> +
> +	igt_info("Setting max bpc to %d on connector id %d\n",
> +		 max_bpc, data->output->config.connector->connector_id);
> +	igt_output_set_prop_value(data->output, IGT_CONNECTOR_MAX_BPC, max_bpc);
> +	igt_display_commit_atomic(display, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
> +
> +	test_fini(data);
> +}
> +
> +/* Override video mode with specified VIC. */
> +static void test_vic_mode(data_t *data, int vic, int conn_id)
>   {
>   	igt_display_t *display = &data->display;
>   	drmModeModeInfo *mode;
>   	igt_fb_t afb;
>   
> -	test_init(data);
> +	test_init(data, conn_id);
>   
>   	mode = &test_modes[vic];
>   
> +	igt_info("Setting mode %s on connector id %d\n",
> +		 mode->name, data->output->config.connector->connector_id);
>   	igt_output_override_mode(data->output, mode);
> -
>   	igt_create_pattern_fb(data->fd, mode->hdisplay, mode->vdisplay, DRM_FORMAT_XRGB8888, 0, &afb);
> -
>   	igt_plane_set_fb(data->primary, &afb);
> -
>   	igt_display_commit_atomic(display, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
>   
>   	igt_info("Press [Enter] to finish\n");
> @@ -147,20 +463,27 @@ static void test_vic_mode(data_t *data, int vic)
>   	test_fini(data);
>   }
>   
> -const char *optstr = "hvt:";
> +const char *optstr = "hvt:i:b:y:";
>   static void usage(const char *name)
>   {
> -	igt_info("Usage: %s [options]\n", name);
> -	igt_info("-h      Show help\n");
> -	igt_info("-t vic  Select video mode based on VIC\n");
> -	igt_info("-v      Test on 'Virtual' connector as well, for debugging.\n");
> +	igt_info("Usage: %s options\n", name);
> +	igt_info("-h		Show help\n");
> +	igt_info("-t vic	Select video mode based on VIC\n");
> +	igt_info("-v		Test on 'Virtual' connector as well, for debugging.\n");
> +	igt_info("-i conn_id	Use connector by ID\n");
> +	igt_info("-b max_bpc	Set \"max bpc\" connector property\n");
> +	igt_info("-y 0|1	Write 0 or 1 to connector's debugfs force_yuv420_output\n");
> +	igt_info("NOTE: if -i is not specified, first connected HDMI connector will be used for -t, -b and -y\n");
>   }
>   
>   int main(int argc, char **argv)
>   {
>   	data_t data;
>   	int c;
> -	int vic = 1; /* default to VIC 1 (640x480) */
> +	int vic = 0;
> +	int conn_id = 0;
> +	int max_bpc = 0;
> +	int force_yuv_420 = -1;
>   
>   	memset(&data, 0, sizeof(data));
>   
> @@ -169,9 +492,18 @@ int main(int argc, char **argv)
>   		case 't':
>   			vic = atoi(optarg);
>   			break;
> +		case 'i':
> +			conn_id = atoi(optarg);
> +			break;
>   		case 'v':
>   			data.use_virtual_connector = true;
>   			break;
> +		case 'b':
> +			max_bpc = atoi(optarg);
> +			break;
> +		case 'y':
> +			force_yuv_420 = atoi(optarg);
> +			break;
>   		default:
>   		case 'h':
>   			usage(argv[0]);
> @@ -179,13 +511,6 @@ int main(int argc, char **argv)
>   		}
>   	}
>   
> -	if (vic < 1 ||
> -		vic > ARRAY_SIZE(test_modes) ||
> -		!test_modes[vic].name[0]) {
> -		igt_warn("VIC %d is not supported\n", vic);
> -		exit(EXIT_FAILURE);
> -	}
> -
>   	data.fd = drm_open_driver_master(DRIVER_ANY);
>   	kmstest_set_vt_graphics_mode();
>   
> @@ -193,7 +518,20 @@ int main(int argc, char **argv)
>   	igt_require(data.display.is_atomic);
>   	igt_display_require_output(&data.display);
>   
> -	test_vic_mode(&data, vic);
> +	if (force_yuv_420 >= 0)
> +		set_force_yuv420(&data, force_yuv_420, conn_id);
> +
> +	if (max_bpc)
> +		set_max_bpc(&data, max_bpc, conn_id);
> +
> +	if (vic) {
> +		if (vic > ARRAY_SIZE(test_modes) ||
> +		!test_modes[vic].name[0]) {

I think it would be more readable if this check were in the same line. 
Also, you can drop all braces in these conditions.

With those changes:

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>

> +			igt_warn("VIC %d is not supported\n", vic);
> +		} else {
> +			test_vic_mode(&data, vic, conn_id);
> +		}
> +	}



>   
>   	igt_display_fini(&data.display);
>   }



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