From mboxrd@z Thu Jan 1 00:00:00 1970 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 CBB1D33030B; Mon, 20 Oct 2025 17:01:54 +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=1760979714; cv=none; b=X6icC+lcxxN7D0ZW9Br3pjrQKAyYhEA3M4kc06D7u/hLDJmwrjUn27CEIZU2SDeCB52pA0xUBXiMy7dgeye9+ec2CHGH8gIOwYrX77g85bmHvN2WRSWviUaKrvVaRPZ9sHdxJ2LNP8fqDORNJY/IlKHFLJmRemoOtSQd+K/2U9k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760979714; c=relaxed/simple; bh=70yn7mGVqzvbk0wNOdWe6Ex6JjVwgt08GC05AbsLvbE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=EaiqdCwJWED4un/y2I3WKKnFho03z23VBVAIjrOVh9rmoMB2Mvz3WzB5e9W+pA2Bteb/ueIfvBYqBCNjWEDnTyWGi/nI7RV05QA8wK/IffqJ4nDdK58hm7SVBM2MDc7exuimkpPys46u1hUYLH+w5uow07PetqnkGWjT6PuyCOk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fMSPhd9x; 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="fMSPhd9x" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50E96C113D0; Mon, 20 Oct 2025 17:01:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760979714; bh=70yn7mGVqzvbk0wNOdWe6Ex6JjVwgt08GC05AbsLvbE=; h=From:To:Cc:Subject:Date:From; b=fMSPhd9xOCtLOxZ69PwVB4aYYjeVU3UacJZITkzQYtPpjLh97/bDeOoPUL0YYxjo7 3CwUFQsThjTtW/55U1MVom3TiuwunCUtH2WX2ggtvpvP9eFyiklLq2iT9U2Fkt8jMh v+7fr+6dwqSEkFZ+bvjZuRZsmGMDYaRVn25hf84eMfKJkS8ATOE3eBiAVqRNSqA4s8 +bczBe8MGOwwLstKdmY8+X2I54aUcFNBNrXGmWcsUWC1tohGGA0tfbHv0TYLfRJBjU frOF7eWUnmtkdP2Wz/9gZN6+H68EMCNAM57MCjeMM7phH6/mLreW5zAinF27SV12dC ZDU006Ku03gGA== Received: by wens.tw (Postfix, from userid 1000) id B224A5FDC3; Tue, 21 Oct 2025 01:01:51 +0800 (CST) From: Chen-Yu Tsai To: Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Vinod Koul Cc: linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org Subject: [PATCH] dmaengine: sun6i: Add debug messages for cyclic DMA prepare Date: Tue, 21 Oct 2025 01:01:45 +0800 Message-ID: <20251020170147.2783867-1-wens@kernel.org> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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. Signed-off-by: Chen-Yu Tsai --- 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 = 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 = 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); } prev = sun6i_dma_lli_add(prev, v_lli, p_lli, txd); -- 2.47.3