From: Nicolin Chen <nicoleotsuka@gmail.com>
To: vinod.koul@intel.com, s.hauer@pengutronix.de
Cc: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
rdunlap@infradead.org, dan.j.williams@intel.com,
shawn.guo@linaro.org, devicetree@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
dmaengine@vger.kernel.org
Subject: [PATCH] dma: imx-sdma: Add a new DMATYPE for Shared Peripheral ASRC
Date: Mon, 16 Jun 2014 11:31:05 +0800 [thread overview]
Message-ID: <1402889465-23797-1-git-send-email-nicoleotsuka@gmail.com> (raw)
Shared Peripheral ASRC, running on SPBA, needs to use shp sciprts for
DMA transfer. So this patch just adds a new DMATYPE for it.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
---
Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt | 1 +
drivers/dma/imx-sdma.c | 5 +++++
include/linux/platform_data/dma-imx.h | 1 +
3 files changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
index ee9be99..d2e91f1 100644
--- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
@@ -47,6 +47,7 @@ The full ID of peripheral types can be found below.
20 ASRC
21 ESAI
22 SSI Dual FIFO (needs firmware ver >= 2)
+ 23 Shared ASRC
The third cell specifies the transfer priority as below.
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index fc04add..85561dc 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -745,6 +745,11 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
emi_2_per = sdma->script_addrs->asrc_2_mcu_addr;
per_2_per = sdma->script_addrs->per_2_per_addr;
break;
+ case IMX_DMATYPE_ASRC_SP:
+ per_2_emi = sdma->script_addrs->shp_2_mcu_addr;
+ emi_2_per = sdma->script_addrs->mcu_2_shp_addr;
+ per_2_per = sdma->script_addrs->per_2_per_addr;
+ break;
case IMX_DMATYPE_MSHC:
per_2_emi = sdma->script_addrs->mshc_2_mcu_addr;
emi_2_per = sdma->script_addrs->mcu_2_mshc_addr;
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h
index bcbc6c3..7aa0e89 100644
--- a/include/linux/platform_data/dma-imx.h
+++ b/include/linux/platform_data/dma-imx.h
@@ -40,6 +40,7 @@ enum sdma_peripheral_type {
IMX_DMATYPE_ASRC, /* ASRC */
IMX_DMATYPE_ESAI, /* ESAI */
IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */
+ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */
};
enum imx_dma_prio {
--
1.8.4
next reply other threads:[~2014-06-16 3:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-16 3:31 Nicolin Chen [this message]
2014-06-21 4:44 ` [PATCH] dma: imx-sdma: Add a new DMATYPE for Shared Peripheral ASRC Shawn Guo
2014-07-25 8:39 ` Vinod Koul
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