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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-05 11:24:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-05 11:24:12 -0700
commit7e6739b9336e61fe23ca4e2c8d1fda8f19f979bf (patch)
treeda3dc30b7ba682edbb7392028e20dcce194b958b /drivers/video/hdmi.c
parenta47e60729d9624e931f988709ab76e043e2ee8b9 (diff)
parent65898687cf7392c372ea8d04a88617e2cb794465 (diff)
downloadlinux-7e6739b9336e61fe23ca4e2c8d1fda8f19f979bf.tar.gz
Merge tag 'drm-next-2022-10-05' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie: "Lots of stuff all over, some new AMD IP support and gang submit support. i915 has further DG2 and Meteorlake pieces, and a bunch of i915 display refactoring. msm has a shrinker rework. There are also a bunch of conversions to use kunit. This has two external pieces, some MEI changes needed for future Intel discrete GPUs. These should be acked by Greg. There is also a cross maintainer shared tree with some backlight rework from Hans in here. Core: - convert selftests to kunit - managed init for more objects - move to idr_init_base - rename fb and gem cma helpers to dma - hide unregistered connectors from getconnector ioctl - DSC passthrough aux support - backlight handling improvements - add dma_resv_assert_held to vmap/vunmap edid: - move luminance calculation to core fbdev: - fix aperture helper usage fourcc: - add more format helpers - add DRM_FORMAT_Cxx, DRM_FORMAT_Rxx, DRM_FORMAT_Dxx - add packed AYUV8888, XYUV8888 - add some kunit tests ttm: - allow bos without backing store - rewrite placement to use intersect/compatible functions dma-buf: - docs update - improve signalling when debugging udmabuf: - fix failure path GPF dp: - drop dp/mst legacy code - atomic mst state support - audio infoframe packing panel: - Samsung LTL101AL01 - B120XAN01.0 - R140NWF5 RH - DMT028VGHMCMI-1A T - AUO B133UAN02.1 - IVO M133NW4J-R3 - Innolux N120ACA-EA1 amdgpu: - Gang submit support - Mode2 reset for RDNA2 - New IP support: DCN 3.1.4, 3.2 SMU 13.x NBIO 7.7 GC 11.x PSP 13.x SDMA 6.x GMC 11.x - DSC passthrough support - PSP fixes for TA support - vangogh GFXOFF stats - clang fixes - gang submit CS cleanup prep work - fix VRAM eviction issues amdkfd: - GC 10.3 IP ISA fixes - fix CRIU regression - CPU fault on COW mapping fixes i915: - align fw versioning with kernel practices - add display substruct to i915 private - add initial runtime info to driver info - split out HDCP and backlight registers - MEI XeHP SDV GSC support - add per-gt sysfs defaults - TLB invalidation improvements - Disable PCI BAR resize on 32-bit - GuC firmware updates and compat changes - GuC log timestamp translation - DG2 preemption workaround changes - DG2 improved HDMI pixel clocks support - PCI BAR sanity checks - Enable DC5 on DG2 - DG2 DMC fw bumped - ADL-S PCI ID added - Meteorlake enablement - Rename ggtt_view to gtt_view - host RPS fixes - release mmaps on rpm suspend on discrete - clocking and dpll refactoring - VBT definitions and parsing updates - SKL watermark code extracted to separate file - allow seamless M/N changes on eDP panels - BUG_ON removal and cleanups msm: - DPU: simplified VBIF configuration cleanup CTL interfaces - DSI: removed unused msm_display_dsc_config struct switch regulator calls to new API switched to PANEL_BRIDGE for direct attached panels - DSI_PHY: convert drivers to parent_hws - DP: cleanup pixel_rate handling - HDMI: turned hdmi-phy-8996 into OF clk provider - misc dt-bindings fixes - choose eDP as primary display if it's available - support getting interconnects from either the mdss or the mdp5/dpu device nodes - gem: Shrinker + LRU re-work: - adds a shared GEM LRU+shrinker helper and moves msm over to that - reduce lock contention between retire and submit by avoiding the need to acquire obj lock in retire path (and instead using resv seeing obj's busyness in the shrinker - fix reclaim vs submit issues - GEM fault injection for triggering userspace error paths - Map/unmap optimization - Improved robustness for a6xx GPU recovery virtio: - improve error and edge conditions handling - convert to use managed helpers - stop exposing LINEAR modifier mgag200: - split modeset handling per model udl: - suspend/disconnect handling improvements vc4: - rework HDMI power up - depend on PM - better unplugging support ast: - resolution handling improvements ingenic: - add JZ4760(B) support - avoid a modeset when sharpness property is unchanged - use the new PM ops it6505: - power seq and clock updates ssd130x: - regmap bulk write - use atomic helpers instead of simple helpers via: - rename via_drv to via_dri1, consolidate all code. radeon: - drop DP MST experimental support - delayed work flush fix - use time_after ti-sn65dsi86: - DP support mediatek: - MT8195 DP support - drop of_gpio header - remove unneeded result - small DP code improvements vkms: - RGB565, XRGB64 and ARGB64 support sun4i: - tv: convert to atomic rcar-du: - Synopsys DW HDMI bridge DT bindings update exynos: - use drm_display_info.is_hdmi - correct return of mixer_mode_valid and hdmi_mode_valid omap: - refcounting fix rockchip: - RK3568 support - RK3399 gamma support" * tag 'drm-next-2022-10-05' of git://anongit.freedesktop.org/drm/drm: (1374 commits) drm/amdkfd: Fix UBSAN shift-out-of-bounds warning drm/amdkfd: Track unified memory when switching xnack mode drm/amdgpu: Enable sram on vcn_4_0_2 drm/amdgpu: Enable VCN DPG for GC11_0_1 drm/msm: Fix build break with recent mm tree drm/panel: simple: Use dev_err_probe() to simplify code drm/panel: panel-edp: Use dev_err_probe() to simplify code drm/panel: simple: Add Multi-Inno Technology MI0800FT-9 dt-bindings: display: simple: Add Multi-Inno Technology MI0800FT-9 panel drm/amdgpu: correct the memcpy size for ip discovery firmware drm/amdgpu: Skip put_reset_domain if it doesn't exist drm/amdgpu: remove switch from amdgpu_gmc_noretry_set drm/amdgpu: Fix mc_umc_status used uninitialized warning drm/amd/display: Prevent OTG shutdown during PSR SU drm/amdgpu: add page retirement handling for CPU RAS drm/amdgpu: use RAS error address convert api in mca notifier drm/amdgpu: support to convert dedicated umc mca address drm/amdgpu: export umc error address convert interface drm/amdgpu: fix sdma v4 init microcode error drm/amd/display: fix array-bounds error in dc_stream_remove_writeback() ...
Diffstat (limited to 'drivers/video/hdmi.c')
-rw-r--r--drivers/video/hdmi.c82
1 files changed, 63 insertions, 19 deletions
diff --git a/drivers/video/hdmi.c b/drivers/video/hdmi.c
index 947be761dfa4..03c7f27dde49 100644
--- a/drivers/video/hdmi.c
+++ b/drivers/video/hdmi.c
@@ -21,6 +21,7 @@
* DEALINGS IN THE SOFTWARE.
*/
+#include <drm/display/drm_dp.h>
#include <linux/bitops.h>
#include <linux/bug.h>
#include <linux/errno.h>
@@ -381,12 +382,34 @@ static int hdmi_audio_infoframe_check_only(const struct hdmi_audio_infoframe *fr
*
* Returns 0 on success or a negative error code on failure.
*/
-int hdmi_audio_infoframe_check(struct hdmi_audio_infoframe *frame)
+int hdmi_audio_infoframe_check(const struct hdmi_audio_infoframe *frame)
{
return hdmi_audio_infoframe_check_only(frame);
}
EXPORT_SYMBOL(hdmi_audio_infoframe_check);
+static void
+hdmi_audio_infoframe_pack_payload(const struct hdmi_audio_infoframe *frame,
+ u8 *buffer)
+{
+ u8 channels;
+
+ if (frame->channels >= 2)
+ channels = frame->channels - 1;
+ else
+ channels = 0;
+
+ buffer[0] = ((frame->coding_type & 0xf) << 4) | (channels & 0x7);
+ buffer[1] = ((frame->sample_frequency & 0x7) << 2) |
+ (frame->sample_size & 0x3);
+ buffer[2] = frame->coding_type_ext & 0x1f;
+ buffer[3] = frame->channel_allocation;
+ buffer[4] = (frame->level_shift_value & 0xf) << 3;
+
+ if (frame->downmix_inhibit)
+ buffer[4] |= BIT(7);
+}
+
/**
* hdmi_audio_infoframe_pack_only() - write HDMI audio infoframe to binary buffer
* @frame: HDMI audio infoframe
@@ -404,7 +427,6 @@ EXPORT_SYMBOL(hdmi_audio_infoframe_check);
ssize_t hdmi_audio_infoframe_pack_only(const struct hdmi_audio_infoframe *frame,
void *buffer, size_t size)
{
- unsigned char channels;
u8 *ptr = buffer;
size_t length;
int ret;
@@ -420,28 +442,13 @@ ssize_t hdmi_audio_infoframe_pack_only(const struct hdmi_audio_infoframe *frame,
memset(buffer, 0, size);
- if (frame->channels >= 2)
- channels = frame->channels - 1;
- else
- channels = 0;
-
ptr[0] = frame->type;
ptr[1] = frame->version;
ptr[2] = frame->length;
ptr[3] = 0; /* checksum */
- /* start infoframe payload */
- ptr += HDMI_INFOFRAME_HEADER_SIZE;
-
- ptr[0] = ((frame->coding_type & 0xf) << 4) | (channels & 0x7);
- ptr[1] = ((frame->sample_frequency & 0x7) << 2) |
- (frame->sample_size & 0x3);
- ptr[2] = frame->coding_type_ext & 0x1f;
- ptr[3] = frame->channel_allocation;
- ptr[4] = (frame->level_shift_value & 0xf) << 3;
-
- if (frame->downmix_inhibit)
- ptr[4] |= BIT(7);
+ hdmi_audio_infoframe_pack_payload(frame,
+ ptr + HDMI_INFOFRAME_HEADER_SIZE);
hdmi_infoframe_set_checksum(buffer, length);
@@ -480,6 +487,43 @@ ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
EXPORT_SYMBOL(hdmi_audio_infoframe_pack);
/**
+ * hdmi_audio_infoframe_pack_for_dp - Pack a HDMI Audio infoframe for DisplayPort
+ *
+ * @frame: HDMI Audio infoframe
+ * @sdp: Secondary data packet for DisplayPort.
+ * @dp_version: DisplayPort version to be encoded in the header
+ *
+ * Packs a HDMI Audio Infoframe to be sent over DisplayPort. This function
+ * fills the secondary data packet to be used for DisplayPort.
+ *
+ * Return: Number of total written bytes or a negative errno on failure.
+ */
+ssize_t
+hdmi_audio_infoframe_pack_for_dp(const struct hdmi_audio_infoframe *frame,
+ struct dp_sdp *sdp, u8 dp_version)
+{
+ int ret;
+
+ ret = hdmi_audio_infoframe_check(frame);
+ if (ret)
+ return ret;
+
+ memset(sdp->db, 0, sizeof(sdp->db));
+
+ /* Secondary-data packet header */
+ sdp->sdp_header.HB0 = 0;
+ sdp->sdp_header.HB1 = frame->type;
+ sdp->sdp_header.HB2 = DP_SDP_AUDIO_INFOFRAME_HB2;
+ sdp->sdp_header.HB3 = (dp_version & 0x3f) << 2;
+
+ hdmi_audio_infoframe_pack_payload(frame, sdp->db);
+
+ /* Return size = frame length + four HB for sdp_header */
+ return frame->length + 4;
+}
+EXPORT_SYMBOL(hdmi_audio_infoframe_pack_for_dp);
+
+/**
* hdmi_vendor_infoframe_init() - initialize an HDMI vendor infoframe
* @frame: HDMI vendor infoframe
*