arm64: dts: qcom: qcs6490: Enable Display Port audio#12
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ks5-dev wants to merge 2 commits intonandamajay:masterfrom
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arm64: dts: qcom: qcs6490: Enable Display Port audio#12ks5-dev wants to merge 2 commits intonandamajay:masterfrom
ks5-dev wants to merge 2 commits intonandamajay:masterfrom
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Add new dai link to enable Display Port audio. Add dp-dai-link to enable audio over DisplayPort on qcs6490. The new DAI link connects the Q6 APM backend DAI (DISPLAY_PORT_RX_0) to the MDSS DisplayPort codec. Signed-off-by: karthik.s <karthik.s@oss.qualcomm.com>
Srinivas-Kandagatla
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Other than the link-name it looks good to me, pl post with that change
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| dp-dai-link { | ||
| link-name = "DISPLAY_PORT-RX"; |
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Please use link-name consistently, Please use
link-name = "DisplayPort0 Playback";
nandamajay
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Mar 13, 2026
XDP multi-buf programs can modify the layout of the XDP buffer when the program calls bpf_xdp_pull_data() or bpf_xdp_adjust_tail(). The referenced commit in the fixes tag corrected the assumption in the mlx5 driver that the XDP buffer layout doesn't change during a program execution. However, this fix introduced another issue: the dropped fragments still need to be counted on the driver side to avoid page fragment reference counting issues. Such issue can be observed with the test_xdp_native_adjst_tail_shrnk_data selftest when using a payload of 3600 and shrinking by 256 bytes (an upcoming selftest patch): the last fragment gets released by the XDP code but doesn't get tracked by the driver. This results in a negative pp_ref_count during page release and the following splat: WARNING: include/net/page_pool/helpers.h:297 at mlx5e_page_release_fragmented.isra.0+0x4a/0x50 [mlx5_core], CPU#12: ip/3137 Modules linked in: [...] CPU: 12 UID: 0 PID: 3137 Comm: ip Not tainted 6.19.0-rc3+ #12 NONE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 RIP: 0010:mlx5e_page_release_fragmented.isra.0+0x4a/0x50 [mlx5_core] [...] Call Trace: <TASK> mlx5e_dealloc_rx_wqe+0xcb/0x1a0 [mlx5_core] mlx5e_free_rx_descs+0x7f/0x110 [mlx5_core] mlx5e_close_rq+0x50/0x60 [mlx5_core] mlx5e_close_queues+0x36/0x2c0 [mlx5_core] mlx5e_close_channel+0x1c/0x50 [mlx5_core] mlx5e_close_channels+0x45/0x80 [mlx5_core] mlx5e_safe_switch_params+0x1a5/0x230 [mlx5_core] mlx5e_change_mtu+0xf3/0x2f0 [mlx5_core] netif_set_mtu_ext+0xf1/0x230 do_setlink.isra.0+0x219/0x1180 rtnl_newlink+0x79f/0xb60 rtnetlink_rcv_msg+0x213/0x3a0 netlink_rcv_skb+0x48/0xf0 netlink_unicast+0x24a/0x350 netlink_sendmsg+0x1ee/0x410 __sock_sendmsg+0x38/0x60 ____sys_sendmsg+0x232/0x280 ___sys_sendmsg+0x78/0xb0 __sys_sendmsg+0x5f/0xb0 [...] do_syscall_64+0x57/0xc50 This patch fixes the issue by doing page frag counting on all the original XDP buffer fragments for all relevant XDP actions (XDP_TX , XDP_REDIRECT and XDP_PASS). This is basically reverting to the original counting before the commit in the fixes tag. As frag_page is still pointing to the original tail, the nr_frags parameter to xdp_update_skb_frags_info() needs to be calculated in a different way to reflect the new nr_frags. Fixes: afd5ba5 ("net/mlx5e: RX, Fix generating skb from non-linear xdp_buff for legacy RQ") Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Amery Hung <ameryhung@gmail.com> Link: https://patch.msgid.link/20260305142634.1813208-6-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add new dai link to enable Display Port audio. Add dp-dai-link to enable audio over DisplayPort on qcs6490. The new DAI link connects the Q6 APM backend DAI (DISPLAY_PORT_RX_0) to the MDSS DisplayPort codec.