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net: ethernet: ti: am65-cpsw-nuss: use of_platform_device_create() for mdio 

The MCU CPSW expected to populate only MDIO device, but follow up patches
will add "compatible" property to the MCU CPSW CPTS node which will cause
creation of CPTS device and MCU CPSW init failure. Hence, switch to use
of_platform_device_create() instead of of_platform_populate() for MDIO
device population.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Grygorii Strashko 2020-05-06 21:13:59 +03:00 committed by David S. Miller
parent a8c9baf28c
commit a45cfcc69a
2 changed files with 20 additions and 6 deletions
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24
drivers/net/ethernet/ti/am65-cpsw-nuss.c
View File

@ -2031,10 +2031,21 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
return ret;
}
ret = of_platform_populate(dev->of_node, NULL, NULL, dev);
/* We do not want to force this, as in some cases may not have child */
if (ret)
dev_warn(dev, "populating child nodes err:%d\n", ret);
node = of_get_child_by_name(dev->of_node, "mdio");
if (!node) {
dev_warn(dev, "MDIO node not found\n");
} else if (of_device_is_available(node)) {
struct platform_device *mdio_pdev;
mdio_pdev = of_platform_device_create(node, NULL, dev);
if (!mdio_pdev) {
ret = -ENODEV;
goto err_pm_clear;
}
common->mdio_dev = &mdio_pdev->dev;
}
of_node_put(node);
am65_cpsw_nuss_get_ver(common);
@ -2090,7 +2101,8 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
return 0;
err_of_clear:
of_platform_depopulate(dev);
of_platform_device_destroy(common->mdio_dev, NULL);
err_pm_clear:
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
return ret;
@ -2115,7 +2127,7 @@ static int am65_cpsw_nuss_remove(struct platform_device *pdev)
*/
am65_cpsw_nuss_cleanup_ndev(common);
of_platform_depopulate(dev);
of_platform_device_destroy(common->mdio_dev, NULL);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);

2
drivers/net/ethernet/ti/am65-cpsw-nuss.h
View File

@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/platform_device.h>
struct am65_cpts;
@ -76,6 +77,7 @@ struct am65_cpsw_pdata {
struct am65_cpsw_common {
struct device *dev;
struct device *mdio_dev;
const struct am65_cpsw_pdata *pdata;
void __iomem *ss_base;