dmaengine: imx-sdma: use platform_device_id to identify sdma version

It might be not good to use software defined version to identify sdma
device type, when hardware does not define such version.  Instead,
soc name is stable enough to define the device type.

The patch uses platform_device_id rather than version number passed
by platform data to identify sdma device type/version.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Vinod Koul <vinod.koul@intel.com>

4 files changed, 5 insertions, 6 deletions

diff --git a/arch/arm/plat-mxc/devices/platform-imx-dma.c b/arch/arm/plat-mxc/devices/platform-imx-dma.c
index 2b0fdb2..7fa7e9c 100644
--- a/arch/arm/plat-mxc/devices/platform-imx-dma.c
+++ b/arch/arm/plat-mxc/devices/platform-imx-dma.c
@@ -14,7 +14,7 @@ struct platform_device __init __maybe_unused *imx_add_imx_dma(void)
 			"imx-dma", -1, NULL, 0, NULL, 0);
 }
 
-struct platform_device __init __maybe_unused *imx_add_imx_sdma(
+struct platform_device __init __maybe_unused *imx_add_imx_sdma(char *name,
 	resource_size_t iobase, int irq, struct sdma_platform_data *pdata)
 {
 	struct resource res[] = {
@@ -29,6 +29,6 @@ struct platform_device __init __maybe_unused *imx_add_imx_sdma(
 		},
 	};
 
-	return platform_device_register_resndata(&mxc_ahb_bus, "imx-sdma",
+	return platform_device_register_resndata(&mxc_ahb_bus, name,
 			-1, res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
 }
diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index 3beef77..524538a 100644
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -299,5 +299,5 @@ struct platform_device *__init imx_add_spi_imx(
 		const struct spi_imx_master *pdata);
 
 struct platform_device *imx_add_imx_dma(void);
-struct platform_device *imx_add_imx_sdma(
+struct platform_device *imx_add_imx_sdma(char *name,
 	resource_size_t iobase, int irq, struct sdma_platform_data *pdata);
diff --git a/arch/arm/plat-mxc/include/mach/dma.h b/arch/arm/plat-mxc/include/mach/dma.h
index ef77515..233d0a5 100644
--- a/arch/arm/plat-mxc/include/mach/dma.h
+++ b/arch/arm/plat-mxc/include/mach/dma.h
@@ -60,7 +60,8 @@ static inline int imx_dma_is_ipu(struct dma_chan *chan)
 
 static inline int imx_dma_is_general_purpose(struct dma_chan *chan)
 {
-	return !strcmp(dev_name(chan->device->dev), "imx-sdma") ||
+	return !strcmp(dev_name(chan->device->dev), "imx31-sdma") ||
+		!strcmp(dev_name(chan->device->dev), "imx35-sdma") ||
 		!strcmp(dev_name(chan->device->dev), "imx-dma");
 }
 
diff --git a/arch/arm/plat-mxc/include/mach/sdma.h b/arch/arm/plat-mxc/include/mach/sdma.h
index f495c87..3a39428 100644
--- a/arch/arm/plat-mxc/include/mach/sdma.h
+++ b/arch/arm/plat-mxc/include/mach/sdma.h
@@ -48,12 +48,10 @@ struct sdma_script_start_addrs {
 /**
  * struct sdma_platform_data - platform specific data for SDMA engine
  *
- * @sdma_version	The version of this SDMA engine
  * @fw_name		The firmware name
  * @script_addrs	SDMA scripts addresses in SDMA ROM
  */
 struct sdma_platform_data {
-	int sdma_version;
 	char *fw_name;
 	struct sdma_script_start_addrs *script_addrs;
 };