can: flexcan: convert the driver to DT-only

The flexcan driver runs only on DT platforms, so simplify the code by using
of_device_get_match_data() to retrieve the driver data and also by removing the
unused id_table.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20201128132855.7724-1-festevam@gmail.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index e85f20d..038fe10 100644 (file)
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1940,15 +1940,8 @@ static const struct of_device_id flexcan_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, flexcan_of_match);
 
-static const struct platform_device_id flexcan_id_table[] = {
-       { .name = "flexcan", .driver_data = (kernel_ulong_t)&fsl_p1010_devtype_data, },
-       { /* sentinel */ },
-};
-MODULE_DEVICE_TABLE(platform, flexcan_id_table);
-
 static int flexcan_probe(struct platform_device *pdev)
 {
-       const struct of_device_id *of_id;
        const struct flexcan_devtype_data *devtype_data;
        struct net_device *dev;
        struct flexcan_priv *priv;
@@ -1997,15 +1990,7 @@ static int flexcan_probe(struct platform_device *pdev)
        if (IS_ERR(regs))
                return PTR_ERR(regs);
 
-       of_id = of_match_device(flexcan_of_match, &pdev->dev);
-       if (of_id) {
-               devtype_data = of_id->data;
-       } else if (platform_get_device_id(pdev)->driver_data) {
-               devtype_data = (struct flexcan_devtype_data *)
-                       platform_get_device_id(pdev)->driver_data;
-       } else {
-               return -ENODEV;
-       }
+       devtype_data = of_device_get_match_data(&pdev->dev);
 
        if ((devtype_data->quirks & FLEXCAN_QUIRK_SUPPORT_FD) &&
            !(devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)) {
@@ -2235,7 +2220,6 @@ static struct platform_driver flexcan_driver = {
        },
        .probe = flexcan_probe,
        .remove = flexcan_remove,
-       .id_table = flexcan_id_table,
 };
 
 module_platform_driver(flexcan_driver);