dmaengine: of-dma: Fix misspellings/formatting issues in some function headers

Fixes the following W=1 kernel build warning(s):

 drivers/dma/of-dma.c:57: warning: Function parameter or member 'ofdma' not described in 'of_dma_router_xlate'
 drivers/dma/of-dma.c:57: warning: Excess function parameter 'of_dma' description in 'of_dma_router_xlate'
 drivers/dma/of-dma.c:107: warning: Function parameter or member 'data' not described in 'of_dma_controller_register'
 drivers/dma/of-dma.c:308: warning: Function parameter or member 'ofdma' not described in 'of_dma_simple_xlate'
 drivers/dma/of-dma.c:308: warning: Excess function parameter 'of_dma' description in 'of_dma_simple_xlate'
 drivers/dma/of-dma.c:338: warning: Function parameter or member 'ofdma' not described in 'of_dma_xlate_by_chan_id'
 drivers/dma/of-dma.c:338: warning: Excess function parameter 'of_dma' description in 'of_dma_xlate_by_chan_id'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200714111546.1755231-3-lee.jones@linaro.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/of-dma.c

@@ -46,7 +46,7 @@ static struct of_dma *of_dma_find_controller(struct of_phandle_args *dma_spec)
 /**
  * of_dma_router_xlate - translation function for router devices
  * @dma_spec:	pointer to DMA specifier as found in the device tree
- * @of_dma:	pointer to DMA controller data (router information)
+ * @ofdma:	pointer to DMA controller data (router information)
  *
  * The function creates new dma_spec to be passed to the router driver's
  * of_dma_route_allocate() function to prepare a dma_spec which will be used
@@ -92,7 +92,7 @@ static struct dma_chan *of_dma_router_xlate(struct of_phandle_args *dma_spec,
  * @np:			device node of DMA controller
  * @of_dma_xlate:	translation function which converts a phandle
  *			arguments list into a dma_chan structure
- * @data		pointer to controller specific data to be used by
+ * @data:		pointer to controller specific data to be used by
  *			translation function
  *
  * Returns 0 on success or appropriate errno value on error.
@@ -295,7 +295,7 @@ EXPORT_SYMBOL_GPL(of_dma_request_slave_channel);
 /**
  * of_dma_simple_xlate - Simple DMA engine translation function
  * @dma_spec:	pointer to DMA specifier as found in the device tree
- * @of_dma:	pointer to DMA controller data
+ * @ofdma:	pointer to DMA controller data
  *
  * A simple translation function for devices that use a 32-bit value for the
  * filter_param when calling the DMA engine dma_request_channel() function.
@@ -323,7 +323,7 @@ EXPORT_SYMBOL_GPL(of_dma_simple_xlate);
 /**
  * of_dma_xlate_by_chan_id - Translate dt property to DMA channel by channel id
  * @dma_spec:	pointer to DMA specifier as found in the device tree
- * @of_dma:	pointer to DMA controller data
+ * @ofdma:	pointer to DMA controller data
  *
  * This function can be used as the of xlate callback for DMA driver which wants
  * to match the channel based on the channel id. When using this xlate function