linux/linux-stable.git - Linux kernel stable tree

Age	Commit message (Collapse)	Author
2025-04-16	drm: xlnx: zynqmp_dpsub: use snd_soc_dummy_dlc	Kuninori Morimoto
	struct zynqmp_dp_audio :: components has codec component, but it is used as dummy DAI. OTOH, We can use common snd_soc_dummy_dlc. Let's use common dummy_dlc instead of own component. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://lore.kernel.org/r/87ecxvr25o.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
2025-02-11	drm: xlnx: zynqmp_dpsub: Add NULL check in zynqmp_audio_init	Charles Han
	devm_kasprintf() calls can return null pointers on failure. But some return values were not checked in zynqmp_audio_init(). Add NULL check in zynqmp_audio_init(), avoid referencing null pointers in the subsequent code. Fixes: 3ec5c1579305 ("drm: xlnx: zynqmp_dpsub: Add DP audio support") Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Charles Han <hanchunchao@inspur.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250211102049.6468-1-hanchunchao@inspur.com
2024-12-19	drm: xlnx: zynqmp_dpsub: Add DP audio support	Tomi Valkeinen
	Add basic DisplayPort audio support. Support non-live audio playback from two PCMs (DMA channels), and the volume control in the audio mixer. As older dtb files may not have the audio DMA channels defined, the driver will just mark the audio support as disabled if the audio DMA is missing, and will continue with only display support. Note: Reset doesn't seem to work (ZYNQMP_DISP_AUD_SOFT_RESET). If we do a reset, audio playback won't start again even if, afaics, we do set up all the necessary registers. So, at the moment, resetting the audio block in dp_dai_hw_free() is commented out. Tested-by: Anatoliy Klymenko <anatoliy.klymenko@amd.com> Reviewed-by: Vishal Sagar <vishal.sagar@amd.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241023-xilinx-dp-audio-v4-3-5128881457be@ideasonboard.com