Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Vinod Koul <vkoul@kernel.org>
To:     dmaengine@vger.kernel.org
Cc:     linux-arm-msm@vger.kernel.org,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Vinod Koul <vkoul@kernel.org>,
        Rob Herring <robh+dt@kernel.org>, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Peter Ujfalusi <peter.ujfalusi@ti.com>
Subject: [PATCH v6 2/3] dmaengine: add peripheral configuration
Date:   Mon,  9 Nov 2020 14:24:49 +0530
Message-Id: <20201109085450.24843-3-vkoul@kernel.org>
In-Reply-To: <20201109085450.24843-1-vkoul@kernel.org>
References: <20201109085450.24843-1-vkoul@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Some complex dmaengine controllers have capability to program the
peripheral device, so pass on the peripheral configuration as part of
dma_slave_config

Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
 include/linux/dmaengine.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index dd357a747780..493a047ed0a2 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -418,6 +418,9 @@ enum dma_slave_buswidth {
  * @slave_id: Slave requester id. Only valid for slave channels. The dma
  * slave peripheral will have unique id as dma requester which need to be
  * pass as slave config.
+ * @peripheral_config: peripheral configuration for programming peripheral
+ * for dmaengine transfer
+ * @peripheral_size: peripheral configuration buffer size
  *
  * This struct is passed in as configuration data to a DMA engine
  * in order to set up a certain channel for DMA transport at runtime.
@@ -443,6 +446,8 @@ struct dma_slave_config {
 	u32 dst_port_window_size;
 	bool device_fc;
 	unsigned int slave_id;
+	void *peripheral_config;
+	size_t peripheral_size;
 };
 
 /**
-- 
2.26.2