From: Sia Jee Heng <jee.heng.sia@intel.com>
To: vkoul@kernel.org, Eugeniy.Paltsev@synopsys.com, robh+dt@kernel.org
Cc: andriy.shevchenko@linux.intel.com, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH v3 05/15] dmaengine: dw-axi-dmac: Add device_config operation
Date: Thu, 12 Nov 2020 16:49:43 +0800 [thread overview]
Message-ID: <20201112084953.21629-6-jee.heng.sia@intel.com> (raw)
In-Reply-To: <20201112084953.21629-1-jee.heng.sia@intel.com>
Add device_config() callback function so that the device address
can be passed to the dma driver.
DMA clients use this interface to pass in the device address to the
AxiDMA. Without this interface, data transfer between device to memory
and memory to device would failed.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sia Jee Heng <jee.heng.sia@intel.com>
---
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 11 +++++++++++
drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 +
2 files changed, 12 insertions(+)
diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
index 56b213211341..16e6934ae9a1 100644
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -559,6 +559,16 @@ dma_chan_prep_dma_memcpy(struct dma_chan *dchan, dma_addr_t dst_adr,
return NULL;
}
+static int dw_axi_dma_chan_slave_config(struct dma_chan *dchan,
+ struct dma_slave_config *config)
+{
+ struct axi_dma_chan *chan = dchan_to_axi_dma_chan(dchan);
+
+ memcpy(&chan->config, config, sizeof(*config));
+
+ return 0;
+}
+
static void axi_chan_dump_lli(struct axi_dma_chan *chan,
struct axi_dma_hw_desc *desc)
{
@@ -948,6 +958,7 @@ static int dw_probe(struct platform_device *pdev)
dw->dma.device_prep_dma_memcpy = dma_chan_prep_dma_memcpy;
dw->dma.device_synchronize = dw_axi_dma_synchronize;
+ dw->dma.device_config = dw_axi_dma_chan_slave_config;
platform_set_drvdata(pdev, chip);
diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
index f886b2bb75de..a75b921d6b1a 100644
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
@@ -43,6 +43,7 @@ struct axi_dma_chan {
struct virt_dma_chan vc;
struct axi_dma_desc *desc;
+ struct dma_slave_config config;
/* these other elements are all protected by vc.lock */
bool is_paused;
};
--
2.18.0
next prev parent reply other threads:[~2020-11-12 9:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-12 8:49 [PATCH v3 00/15] dmaengine: dw-axi-dmac: support Intel KeemBay AxiDMA Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 01/15] dt-bindings: dma: Add YAML schemas for dw-axi-dmac Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 02/15] dmaengine: dw-axi-dmac: simplify descriptor management Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 03/15] dmaengine: dw-axi-dmac: move dma_pool_create() to alloc_chan_resources() Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 04/15] dmaengine: dw-axi-dmac: Add device_synchronize() callback Sia Jee Heng
2020-11-12 8:49 ` Sia Jee Heng [this message]
2020-11-12 8:49 ` [PATCH v3 06/15] dmaengine: dw-axi-dmac: Support device_prep_slave_sg Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 07/15] dmaegine: dw-axi-dmac: Support device_prep_dma_cyclic() Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 08/15] dmaengine: dw-axi-dmac: Support of_dma_controller_register() Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 09/15] dmaengine: dw-axi-dmac: Support burst residue granularity Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 10/15] dt-binding: dma: dw-axi-dmac: Add support for Intel KeemBay AxiDMA Sia Jee Heng
2020-11-12 14:54 ` Rob Herring
2020-11-12 14:58 ` Rob Herring
2020-11-13 2:12 ` Sia, Jee Heng
2020-11-12 8:49 ` [PATCH v3 11/15] dmaengine: dw-axi-dmac: Add Intel KeemBay DMA register fields Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 12/15] dmaengine: dw-axi-dmac: Add Intel KeemBay AxiDMA support Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 13/15] dmaengine: dw-axi-dmac: Add Intel KeemBay AxiDMA handshake Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 14/15] dmaengine: dw-axi-dmac: Add Intel KeemBay AxiDMA BYTE and HALFWORD registers Sia Jee Heng
2020-11-12 8:49 ` [PATCH v3 15/15] dmaengine: dw-axi-dmac: Set constraint to the Max segment size Sia Jee Heng
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