@@ -15,6 +15,7 @@ if STMMAC_ETH
config STMMAC_PLATFORM
bool "STMMAC Platform bus support"
depends on STMMAC_ETH
+ default y
---help---
This selects the platform specific bus support for
the stmmac device driver. This is the driver used
@@ -26,6 +26,7 @@
#include <linux/clk.h>
#include <linux/stmmac.h>
#include <linux/phy.h>
+#include <linux/pci.h>
#include "common.h"
#ifdef CONFIG_STMMAC_TIMER
#include "stmmac_timer.h"
@@ -95,8 +96,6 @@ extern int stmmac_mdio_register(struct net_device *ndev);
extern void stmmac_set_ethtool_ops(struct net_device *netdev);
extern const struct stmmac_desc_ops enh_desc_ops;
extern const struct stmmac_desc_ops ndesc_ops;
-extern struct pci_driver stmmac_pci_driver;
-extern struct platform_driver stmmac_pltfr_driver;
int stmmac_freeze(struct net_device *ndev);
int stmmac_restore(struct net_device *ndev);
int stmmac_resume(struct net_device *ndev);
@@ -144,3 +143,60 @@ static inline int stmmac_clk_get(struct stmmac_priv *priv)
return 0;
}
#endif /* CONFIG_HAVE_CLK */
+
+
+#ifdef CONFIG_STMMAC_PLATFORM
+extern struct platform_driver stmmac_pltfr_driver;
+static inline int stmmac_register_platform(void)
+{
+ int err;
+
+ err = platform_driver_register(&stmmac_pltfr_driver);
+ if (err)
+ pr_err("stmmac: failed to register the platform driver\n");
+
+ return err;
+}
+static inline void stmmac_unregister_platform(void)
+{
+ platform_driver_register(&stmmac_pltfr_driver);
+}
+#else
+static inline int stmmac_register_platform(void)
+{
+ pr_err("stmmac: do not register the platf driver\n");
+
+ return -EINVAL;
+}
+static inline void stmmac_unregister_platform(void)
+{
+}
+#endif /* CONFIG_STMMAC_PLATFORM */
+
+#ifdef CONFIG_STMMAC_PCI
+extern struct pci_driver stmmac_pci_driver;
+static inline int stmmac_register_pci(void)
+{
+ int err;
+
+ err = pci_register_driver(&stmmac_pci_driver);
+ if (err)
+ pr_err("stmmac: failed to register the PCI driver\n");
+
+ return err;
+}
+static inline void stmmac_unregister_pci(void)
+{
+ pci_unregister_driver(&stmmac_pci_driver);
+}
+#else
+static inline int stmmac_register_pci(void)
+{
+ pr_err("stmmac: do not register the PCI driver\n");
+
+ return -EINVAL;
+}
+static inline void stmmac_unregister_pci(void)
+{
+}
+#endif /* CONFIG_STMMAC_PCI */
@@ -42,7 +42,6 @@
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <linux/prefetch.h>
-#include <linux/pci.h>
#ifdef CONFIG_STMMAC_DEBUG_FS
#include <linux/debugfs.h>
#include <linux/seq_file.h>
@@ -2094,25 +2093,29 @@ int stmmac_restore(struct net_device *ndev)
}
#endif /* CONFIG_PM */
+/* Driver can be configured w/ and w/ both PCI and Platf drivers
+ * depending on the configuration selected.
+ */
static int __init stmmac_init(void)
{
- int err = 0;
+ int err_plt = 0;
+ int err_pci = 0;
- err = platform_driver_register(&stmmac_pltfr_driver);
+ err_plt = stmmac_register_platform();
+ err_pci = stmmac_register_pci();
- if (!err) {
- err = pci_register_driver(&stmmac_pci_driver);
- if (err)
- platform_driver_unregister(&stmmac_pltfr_driver);
+ if ((err_pci) && (err_plt)) {
+ pr_err("stmmac: driver registration failed\n");
+ return -EINVAL;
}
- return err;
+ return 0;
}
static void __exit stmmac_exit(void)
{
- pci_unregister_driver(&stmmac_pci_driver);
- platform_driver_unregister(&stmmac_pltfr_driver);
+ stmmac_unregister_platform();
+ stmmac_unregister_pci();
}
module_init(stmmac_init);
The commit ba27ec66ffeb78cbf fixes the Kconfig of the driver when built as module allowing to select/unselect the PCI and Platform modules that are not anymore mutually exclusive. This patch fixes and guarantees that the driver builds on all the platforms w/ w/o PCI and when select/unselect the two stmmac supports. In case of there are some problems on both the configuration and the pci/pltf registration the module_init will fail. v2: set the CONFIG_STMMAC_PLATFORM enabled by default. I've just noticed that this can actually help on some configurations that don't enable any STMMAC options by default (e.g. SPEAr). Reported-by: Fengguang Wu <wfg@linux.intel.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 1 + drivers/net/ethernet/stmicro/stmmac/stmmac.h | 60 ++++++++++++++++++++- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 23 +++++---- 3 files changed, 72 insertions(+), 12 deletions(-)