dmaengine: mxs-dma: Remove the unused .id_table

The mxs-dma driver is only used by DT platforms and the .id_table
is unused.

Get rid of it to simplify the code.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20201123193051.17285-1-festevam@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index 65f816b40c32807e07c90c0418ed91e3a83dd9d5..994fc4d2aca42e6a6a0c34995877a3f97137a948 100644 (file)
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -167,29 +167,11 @@ static struct mxs_dma_type mxs_dma_types[] = {
        }
 };
 
-static const struct platform_device_id mxs_dma_ids[] = {
-       {
-               .name = "imx23-dma-apbh",
-               .driver_data = (kernel_ulong_t) &mxs_dma_types[0],
-       }, {
-               .name = "imx23-dma-apbx",
-               .driver_data = (kernel_ulong_t) &mxs_dma_types[1],
-       }, {
-               .name = "imx28-dma-apbh",
-               .driver_data = (kernel_ulong_t) &mxs_dma_types[2],
-       }, {
-               .name = "imx28-dma-apbx",
-               .driver_data = (kernel_ulong_t) &mxs_dma_types[3],
-       }, {
-               /* end of list */
-       }
-};
-
 static const struct of_device_id mxs_dma_dt_ids[] = {
-       { .compatible = "fsl,imx23-dma-apbh", .data = &mxs_dma_ids[0], },
-       { .compatible = "fsl,imx23-dma-apbx", .data = &mxs_dma_ids[1], },
-       { .compatible = "fsl,imx28-dma-apbh", .data = &mxs_dma_ids[2], },
-       { .compatible = "fsl,imx28-dma-apbx", .data = &mxs_dma_ids[3], },
+       { .compatible = "fsl,imx23-dma-apbh", .data = &mxs_dma_types[0], },
+       { .compatible = "fsl,imx23-dma-apbx", .data = &mxs_dma_types[1], },
+       { .compatible = "fsl,imx28-dma-apbh", .data = &mxs_dma_types[2], },
+       { .compatible = "fsl,imx28-dma-apbx", .data = &mxs_dma_types[3], },
        { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, mxs_dma_dt_ids);
@@ -762,8 +744,6 @@ static struct dma_chan *mxs_dma_xlate(struct of_phandle_args *dma_spec,
 static int __init mxs_dma_probe(struct platform_device *pdev)
 {
        struct device_node *np = pdev->dev.of_node;
-       const struct platform_device_id *id_entry;
-       const struct of_device_id *of_id;
        const struct mxs_dma_type *dma_type;
        struct mxs_dma_engine *mxs_dma;
        struct resource *iores;
@@ -779,13 +759,7 @@ static int __init mxs_dma_probe(struct platform_device *pdev)
                return ret;
        }
 
-       of_id = of_match_device(mxs_dma_dt_ids, &pdev->dev);
-       if (of_id)
-               id_entry = of_id->data;
-       else
-               id_entry = platform_get_device_id(pdev);
-
-       dma_type = (struct mxs_dma_type *)id_entry->driver_data;
+       dma_type = (struct mxs_dma_type *)of_device_get_match_data(&pdev->dev);
        mxs_dma->type = dma_type->type;
        mxs_dma->dev_id = dma_type->id;
 
@@ -865,7 +839,6 @@ static struct platform_driver mxs_dma_driver = {
                .name   = "mxs-dma",
                .of_match_table = mxs_dma_dt_ids,
        },
-       .id_table       = mxs_dma_ids,
 };
 
 static int __init mxs_dma_module_init(void)