From nobody Sat Feb 7 21:24:51 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2AB4E13A258; Sun, 21 Dec 2025 06:47:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766299678; cv=none; b=n1LkcQVRLX33CWWDyuExohSK/0MZs76ZtVHWtt2UTheKCsF4ZVG8L1vTMzyzxDv/cKyF+1ZRh9MFVCoOaoEIN9DubgoBAcjtAKCHHk20MBDw5PoNCfcz2Okvk7MXEky+6DybYQFKeiapuA7Q6+ucYUwDu6b5wMbXjvRgR3Sg2kg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766299678; c=relaxed/simple; bh=dq4SjEE6XVIDRMreVqzrzH3io5MNY5o1sITwGmWprhc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=kwL2LtZxz56r8s60j8+kR9lGCjW9ZJCSQ+i2hryoHihmUusw/Ipe8oUkZS6gGsyXQzRmuLVfUgA0uD8IVqOqZ769R12FQyx7bs8KSIpp0TUot9Z+IId4eDNHNz6bkVG2ZGopU3S1uvIIJpmywOIoAd/bhhBF0NN3N8ir9aupKvs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=pRbQfv5A; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="pRbQfv5A" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 96864C4CEFB; Sun, 21 Dec 2025 06:47:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766299677; bh=dq4SjEE6XVIDRMreVqzrzH3io5MNY5o1sITwGmWprhc=; h=From:To:Cc:Subject:Date:From; b=pRbQfv5A3j0G+9CBPGmKz1bqN+Wno5MhiZZTVaj09+xLi1etHeMCLlT+3tD55aY51 rk5KCqlSXv1c1HqjuWPvs0F7FbYjpVsUT36kZ2KJ28XMoLxYMRwkidtWB/faxPMFdr qpk38TA6PWjqy9k7Z5FLp+474yB+TOzh552CszlCUOWNA2o3Dlr0umqOu4s7Ksho4h lOGrf+Y03PE8iz6SFeCveZv+m9d6xmlEer9p8DklSzpifOGU8BntDvUdqQGQzzo2hH xxBzyW2WoLjtcRpnJj0CdBedLi6wn/iH+Q2Jj+FvuqAQMRXz3KzgpX1ASoYJ+wnVSw T29KUQcq3IcOg== Received: by wens.tw (Postfix, from userid 1000) id 4AD3F5FDFB; Sun, 21 Dec 2025 14:47:55 +0800 (CST) From: Chen-Yu Tsai To: Vinod Koul Cc: Chen-Yu Tsai , dmaengine@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jernej Skrabec Subject: [PATCH RESEND] dmaengine: sun6i: Add debug messages for cyclic DMA prepare Date: Sun, 21 Dec 2025 14:47:52 +0800 Message-ID: <20251221064754.1783369-1-wens@kernel.org> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The driver already has debug messages for memcpy and linear transfers, but is missing them for cyclic transfers. Cyclic transfers are one of the main uses of the DMA controller, used for audio data transfers. And since these are likely the first DMA peripherals to be enabled, it helps to have these debug messages. Acked-by: Jernej Skrabec Signed-off-by: Chen-Yu Tsai --- Hi Vinod, This patch seems to have fallen through the cracks. drivers/dma/sun6i-dma.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 2215ff877bf7..2e03c587bd2e 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -826,6 +826,11 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_= dma_cyclic( v_lli->cfg =3D lli_cfg; sdev->cfg->set_drq(&v_lli->cfg, DRQ_SDRAM, vchan->port); sdev->cfg->set_mode(&v_lli->cfg, LINEAR_MODE, IO_MODE); + dev_dbg(chan2dev(chan), + "%s; chan: %d, dest: %pad, src: %pad, len: %zu. flags: 0x%08lx\n", + __func__, vchan->vc.chan.chan_id, + &sconfig->dst_addr, &buf_addr, + buf_len, flags); } else { sun6i_dma_set_addr(sdev, v_lli, sconfig->src_addr, @@ -833,6 +838,11 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_= dma_cyclic( v_lli->cfg =3D lli_cfg; sdev->cfg->set_drq(&v_lli->cfg, vchan->port, DRQ_SDRAM); sdev->cfg->set_mode(&v_lli->cfg, IO_MODE, LINEAR_MODE); + dev_dbg(chan2dev(chan), + "%s; chan: %d, dest: %pad, src: %pad, len: %zu. flags: 0x%08lx\n", + __func__, vchan->vc.chan.chan_id, + &buf_addr, &sconfig->src_addr, + buf_len, flags); } =20 prev =3D sun6i_dma_lli_add(prev, v_lli, p_lli, txd); --=20 2.47.3