From nobody Tue Feb 10 05:09:51 2026 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 7DE872980C2; Tue, 22 Apr 2025 17:40:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745343603; cv=none; b=cQt/dmINPNTtWLRJY21XhqQcDN/rvFZS6jdnZ8nEEECaizaPMUZ786DY8XsTLLbAVqeZfhCrKfvhPlQNn2fNzdkBmMCyKTGvfIYK2j/jV08J0AkrqMOXZn1G/WkZM9yo1Rc0Kc4SyQROFn63ch3rXFbdN/NWZ36gVWdzJ306s34= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745343603; c=relaxed/simple; bh=T1nezSAU2/i7clh4+utfsA6OXaqiGq6mmwz7s1fsqpA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=N9UjZVUW2EovlEQPpVIGNQUqkPaGV9YzvXhXPkHKwnYkUL9L9vFJPRyml0fRX+nMXcEngeuq9hnQ6gPZWiVLYWgm2fmsOWeP5uCrxqL9wMflKT1NfyQwiNLDQkXu8ir+pjxODtmRypDmTYm/J3USyHMsdZR/exxuDbaboaMVYw8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-CSE-ConnectionGUID: D+ZhbfOhTMS0BfJxF91gaw== X-CSE-MsgGUID: /R0BtqE8QyGNEoBhH4Xr/w== Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 23 Apr 2025 02:40:01 +0900 Received: from mulinux.home (unknown [10.226.92.16]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 399C140437A5; Wed, 23 Apr 2025 02:39:57 +0900 (JST) From: Fabrizio Castro To: Vinod Koul , Geert Uytterhoeven Cc: Fabrizio Castro , Lad Prabhakar , Wolfram Sang , Biju Das , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: [PATCH v6 4/6] dmaengine: sh: rz-dmac: Allow for multiple DMACs Date: Tue, 22 Apr 2025 18:39:35 +0100 Message-Id: <20250422173937.3722875-5-fabrizio.castro.jz@renesas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250422173937.3722875-1-fabrizio.castro.jz@renesas.com> References: <20250422173937.3722875-1-fabrizio.castro.jz@renesas.com> 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" dma_request_channel() calls into __dma_request_channel() with NULL as value for np, which won't allow for the selection of the correct DMAC when multiple DMACs are available. Switch to using __dma_request_channel() directly so that we can choose the desired DMA for the channel. This is in preparation of adding DMAC support for the Renesas RZ/V2H(P) and similar SoCs. Signed-off-by: Fabrizio Castro Reviewed-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven --- v5->v6: * No change. v4->v5: * Collected tags. v3->v4: * No change. v2->v3: * Added () for calls in changelog. v1->v2: * No change. --- drivers/dma/sh/rz-dmac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/dma/sh/rz-dmac.c b/drivers/dma/sh/rz-dmac.c index 9235db551026..d7a4ce28040b 100644 --- a/drivers/dma/sh/rz-dmac.c +++ b/drivers/dma/sh/rz-dmac.c @@ -748,7 +748,8 @@ static struct dma_chan *rz_dmac_of_xlate(struct of_phan= dle_args *dma_spec, dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); =20 - return dma_request_channel(mask, rz_dmac_chan_filter, dma_spec); + return __dma_request_channel(&mask, rz_dmac_chan_filter, dma_spec, + ofdma->of_node); } =20 /* --=20 2.34.1