diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4052-drm-amd-display-add-support-for-VSIP-info-packet.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4052-drm-amd-display-add-support-for-VSIP-info-packet.patch | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4052-drm-amd-display-add-support-for-VSIP-info-packet.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4052-drm-amd-display-add-support-for-VSIP-info-packet.patch new file mode 100644 index 00000000..e8fad51d --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4052-drm-amd-display-add-support-for-VSIP-info-packet.patch @@ -0,0 +1,150 @@ +From 895fe14ebb2fac216ae82ea4d18f04cbf4f3691c Mon Sep 17 00:00:00 2001 +From: Wayne Lin <Wayne.Lin@amd.com> +Date: Wed, 4 Sep 2019 05:18:31 +0800 +Subject: [PATCH 4052/4256] drm/amd/display: add support for VSIP info packet + +[Why] +The vendor specific infoframe is needed for HDMI while displaying +specific modes. +DC supports sending it, but we aren't currently building it + +[How] +Add mod_build_hf_vsif_infopacket() to build the vendor specific +info packet. + +Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> +Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> +Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> +--- + .../amd/display/modules/inc/mod_info_packet.h | 3 + + .../display/modules/info_packet/info_packet.c | 98 +++++++++++++++++++ + 2 files changed, 101 insertions(+) + +diff --git a/drivers/gpu/drm/amd/display/modules/inc/mod_info_packet.h b/drivers/gpu/drm/amd/display/modules/inc/mod_info_packet.h +index d930bdecb117..ca8ce3c55337 100644 +--- a/drivers/gpu/drm/amd/display/modules/inc/mod_info_packet.h ++++ b/drivers/gpu/drm/amd/display/modules/inc/mod_info_packet.h +@@ -35,4 +35,7 @@ struct mod_vrr_params; + void mod_build_vsc_infopacket(const struct dc_stream_state *stream, + struct dc_info_packet *info_packet); + ++void mod_build_hf_vsif_infopacket(const struct dc_stream_state *stream, ++ struct dc_info_packet *info_packet, int ALLMEnabled, int ALLMValue); ++ + #endif +diff --git a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c +index d885d642ed7f..db6b08f6d093 100644 +--- a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c ++++ b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c +@@ -31,6 +31,7 @@ + #include "dc.h" + + #define HDMI_INFOFRAME_TYPE_VENDOR 0x81 ++#define HF_VSIF_VERSION 1 + + // VTEM Byte Offset + #define VTEM_PB0 0 +@@ -395,3 +396,100 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream, + + } + ++/** ++ ***************************************************************************** ++ * Function: mod_build_hf_vsif_infopacket ++ * ++ * @brief ++ * Prepare HDMI Vendor Specific info frame. ++ * Follows HDMI Spec to build up Vendor Specific info frame ++ * ++ * @param [in] stream: contains data we may need to construct VSIF (i.e. timing_3d_format, etc.) ++ * @param [out] info_packet: output structure where to store VSIF ++ ***************************************************************************** ++ */ ++void mod_build_hf_vsif_infopacket(const struct dc_stream_state *stream, ++ struct dc_info_packet *info_packet, int ALLMEnabled, int ALLMValue) ++{ ++ unsigned int length = 5; ++ bool hdmi_vic_mode = false; ++ uint8_t checksum = 0; ++ uint32_t i = 0; ++ enum dc_timing_3d_format format; ++ bool bALLM = (bool)ALLMEnabled; ++ bool bALLMVal = (bool)ALLMValue; ++ ++ info_packet->valid = false; ++ format = stream->timing.timing_3d_format; ++ if (stream->view_format == VIEW_3D_FORMAT_NONE) ++ format = TIMING_3D_FORMAT_NONE; ++ ++ if (stream->timing.hdmi_vic != 0 ++ && stream->timing.h_total >= 3840 ++ && stream->timing.v_total >= 2160 ++ && format == TIMING_3D_FORMAT_NONE) ++ hdmi_vic_mode = true; ++ ++ if ((format == TIMING_3D_FORMAT_NONE) && !hdmi_vic_mode && !bALLM) ++ return; ++ ++ info_packet->sb[1] = 0x03; ++ info_packet->sb[2] = 0x0C; ++ info_packet->sb[3] = 0x00; ++ ++ if (bALLM) { ++ info_packet->sb[1] = 0xD8; ++ info_packet->sb[2] = 0x5D; ++ info_packet->sb[3] = 0xC4; ++ info_packet->sb[4] = HF_VSIF_VERSION; ++ } ++ ++ if (format != TIMING_3D_FORMAT_NONE) ++ info_packet->sb[4] = (2 << 5); ++ ++ else if (hdmi_vic_mode) ++ info_packet->sb[4] = (1 << 5); ++ ++ switch (format) { ++ case TIMING_3D_FORMAT_HW_FRAME_PACKING: ++ case TIMING_3D_FORMAT_SW_FRAME_PACKING: ++ info_packet->sb[5] = (0x0 << 4); ++ break; ++ ++ case TIMING_3D_FORMAT_SIDE_BY_SIDE: ++ case TIMING_3D_FORMAT_SBS_SW_PACKED: ++ info_packet->sb[5] = (0x8 << 4); ++ length = 6; ++ break; ++ ++ case TIMING_3D_FORMAT_TOP_AND_BOTTOM: ++ case TIMING_3D_FORMAT_TB_SW_PACKED: ++ info_packet->sb[5] = (0x6 << 4); ++ break; ++ ++ default: ++ break; ++ } ++ ++ if (hdmi_vic_mode) ++ info_packet->sb[5] = stream->timing.hdmi_vic; ++ ++ info_packet->hb0 = HDMI_INFOFRAME_TYPE_VENDOR; ++ info_packet->hb1 = 0x01; ++ info_packet->hb2 = (uint8_t) (length); ++ ++ if (bALLM) ++ info_packet->sb[5] = (info_packet->sb[5] & ~0x02) | (bALLMVal << 1); ++ ++ checksum += info_packet->hb0; ++ checksum += info_packet->hb1; ++ checksum += info_packet->hb2; ++ ++ for (i = 1; i <= length; i++) ++ checksum += info_packet->sb[i]; ++ ++ info_packet->sb[0] = (uint8_t) (0x100 - checksum); ++ ++ info_packet->valid = true; ++} ++ +-- +2.17.1 + |