Re: [v10,20/27] drm/connector: hdmi: Add Infoframes generation

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Hi,


On 2024/3/21 23:29, Maxime Ripard wrote:
Infoframes in KMS is usually handled by a bunch of low-level helpers
that require quite some boilerplate for drivers. This leads to
discrepancies with how drivers generate them, and which are actually
sent.

Now that we have everything needed to generate them in the HDMI
connector state, we can generate them in our common logic so that
drivers can simply reuse what we precomputed.

Signed-off-by: Maxime Ripard <mripard@xxxxxxxxxx>
---
  drivers/gpu/drm/Kconfig                            |   1 +
  drivers/gpu/drm/drm_atomic_state_helper.c          | 338 +++++++++++++++++++++
  drivers/gpu/drm/drm_connector.c                    |  14 +
  .../gpu/drm/tests/drm_atomic_state_helper_test.c   |   1 +
  drivers/gpu/drm/tests/drm_connector_test.c         |  12 +
  include/drm/drm_atomic_state_helper.h              |   8 +
  include/drm/drm_connector.h                        | 109 +++++++
  7 files changed, 483 insertions(+)

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 16029435b750..3d3193c7aa5f 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -97,10 +97,11 @@ config DRM_KUNIT_TEST
  	  If in doubt, say "N".
config DRM_KMS_HELPER
  	tristate
  	depends on DRM
+	select DRM_DISPLAY_HDMI_HELPER

Should we select DRM_DISPLAY_HELPER here? Otherwise there will have some compile error
emerged with default config.


: drivers/gpu/drm/drm_atomic_state_helper.o: in function `drm_atomic_helper_connector_hdmi_check':
drm_atomic_state_helper.c:(.text+0x15e4): undefined reference to `drm_hdmi_avi_infoframe_colorimetry'
: drm_atomic_state_helper.c:(.text+0x15f0): undefined reference to `drm_hdmi_avi_infoframe_bars'
: drm_atomic_state_helper.c:(.text+0x1638): undefined reference to `drm_hdmi_infoframe_set_hdr_metadata'
make[2]: *** [scripts/Makefile.vmlinux:37: vmlinux] Error 1

make[1]: *** [/home/suijingfeng/UpStream/drm-tip/Makefile:1162: vmlinux] Error 2

make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:240: __sub-make] Error 2

  	help
  	  CRTC helpers for KMS drivers.
config DRM_DEBUG_DP_MST_TOPOLOGY_REFS
          bool "Enable refcount backtrace history in the DP MST helpers"

--
Best regards,
Sui





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