[PATCH] ppc32: Make platform devices being able to assign functions

Implemented by  modification of the .name field of the platform device,
when PDs with the
same names are to be used within different drivers, as
<device_name> -> <device_name>:<function>
Corresponding drivers should change the .name in struct device_driver to
reflect upper of course.

Added ppc_sys_device_disable/enable function set, making it easier to
disable all the inexistent/not utilized platform device way pdevs. By the
check of the "disabled" bit in the config field of ppc_sys_specs, disabled
platform devices will be either added/removed from the bus, or simply not
registered on it, depending on the time when disable/enable call asserted.

The default behaviour when nothing is disabled/enabled will be "all devices
are enabled", which is the same as before.

Also helper platform_notify_map function added, making assignment of
board-specific platform_info more consistent and generic.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

7 files changed, 38 insertions, 0 deletions

diff --git a/include/asm-ppc/mpc10x.h b/include/asm-ppc/mpc10x.h
index 77b1e092c20..976ad3d94f2 100644
--- a/include/asm-ppc/mpc10x.h
+++ b/include/asm-ppc/mpc10x.h
@@ -165,6 +165,7 @@ enum ppc_sys_devices {
 	MPC10X_DMA1,
 	MPC10X_UART0,
 	MPC10X_UART1,
+	NUM_PPC_SYS_DEVS,
 };
 
 int mpc10x_bridge_init(struct pci_controller *hose,
diff --git a/include/asm-ppc/mpc52xx.h b/include/asm-ppc/mpc52xx.h
index a055e0756b9..6167f74635f 100644
--- a/include/asm-ppc/mpc52xx.h
+++ b/include/asm-ppc/mpc52xx.h
@@ -60,6 +60,7 @@ enum ppc_sys_devices {
 	MPC52xx_ATA,
 	MPC52xx_I2C1,
 	MPC52xx_I2C2,
+	NUM_PPC_SYS_DEVS,
 };
 
 
diff --git a/include/asm-ppc/mpc8260.h b/include/asm-ppc/mpc8260.h
index 32145269503..6ba69a86b9d 100644
--- a/include/asm-ppc/mpc8260.h
+++ b/include/asm-ppc/mpc8260.h
@@ -83,6 +83,7 @@ enum ppc_sys_devices {
 	MPC82xx_CPM_SMC2,
 	MPC82xx_CPM_USB,
 	MPC82xx_SEC1,
+	NUM_PPC_SYS_DEVS,
 };
 
 #ifndef __ASSEMBLY__
diff --git a/include/asm-ppc/mpc83xx.h b/include/asm-ppc/mpc83xx.h
index 7cdf60fa69b..3c23fc43bfb 100644
--- a/include/asm-ppc/mpc83xx.h
+++ b/include/asm-ppc/mpc83xx.h
@@ -108,6 +108,7 @@ enum ppc_sys_devices {
 	MPC83xx_USB2_DR,
 	MPC83xx_USB2_MPH,
 	MPC83xx_MDIO,
+	NUM_PPC_SYS_DEVS,
 };
 
 #endif /* CONFIG_83xx */
diff --git a/include/asm-ppc/mpc85xx.h b/include/asm-ppc/mpc85xx.h
index c8a96aa44fb..f47002a60ed 100644
--- a/include/asm-ppc/mpc85xx.h
+++ b/include/asm-ppc/mpc85xx.h
@@ -139,6 +139,7 @@ enum ppc_sys_devices {
 	MPC85xx_eTSEC4,
 	MPC85xx_IIC2,
 	MPC85xx_MDIO,
+	NUM_PPC_SYS_DEVS,
 };
 
 /* Internal interrupts are all Level Sensitive, and Positive Polarity */
diff --git a/include/asm-ppc/mpc8xx.h b/include/asm-ppc/mpc8xx.h
index 73ec9a6db0b..3515a7fa6c8 100644
--- a/include/asm-ppc/mpc8xx.h
+++ b/include/asm-ppc/mpc8xx.h
@@ -111,6 +111,7 @@ enum ppc_sys_devices {
 	MPC8xx_CPM_SMC1,
 	MPC8xx_CPM_SMC2,
 	MPC8xx_CPM_USB,
+	NUM_PPC_SYS_DEVS,
 };
 
 #define PPC_PIN_SIZE	(24 * 1024 * 1024)	/* 24Mbytes of data pinned */
diff --git a/include/asm-ppc/ppc_sys.h b/include/asm-ppc/ppc_sys.h
index bdc4dde35ed..4b94f7059eb 100644
--- a/include/asm-ppc/ppc_sys.h
+++ b/include/asm-ppc/ppc_sys.h
@@ -46,9 +46,26 @@ struct ppc_sys_spec {
 	u32 			value;
 	u32 			num_devices;
 	char 			*ppc_sys_name;
+	u8			config[NUM_PPC_SYS_DEVS];
 	enum ppc_sys_devices 	*device_list;
 };
 
+struct platform_notify_dev_map {
+	const char *bus_id;
+	void (*rtn)(struct platform_device * pdev, int idx);
+};
+
+enum platform_device_func {
+	PPC_SYS_FUNC_DUMMY = 0,
+	PPC_SYS_FUNC_ETH = 1,
+	PPC_SYS_FUNC_UART = 2,
+	PPC_SYS_FUNC_HLDC = 3,
+	PPC_SYS_FUNC_USB = 4,
+	PPC_SYS_FUNC_IRDA = 5,
+};
+
+#define PPC_SYS_CONFIG_DISABLED		1
+
 /* describes all specific chips and which devices they have on them */
 extern struct ppc_sys_spec ppc_sys_specs[];
 extern struct ppc_sys_spec *cur_ppc_sys_spec;
@@ -74,5 +91,20 @@ extern void *ppc_sys_get_pdata(enum ppc_sys_devices dev) __init;
 /* remove a device from the system */
 extern void ppc_sys_device_remove(enum ppc_sys_devices dev);
 
+/* Function assignment stuff */
+void ppc_sys_device_initfunc(void);
+void ppc_sys_device_setfunc(enum ppc_sys_devices dev,
+			    enum platform_device_func func);
+void ppc_sys_device_set_func_all(enum platform_device_func func);
+
+void platform_notify_map(const struct platform_notify_dev_map *map,
+			 struct device *dev);
+
+/* Enable / disable stuff */
+void ppc_sys_device_disable(enum ppc_sys_devices dev);
+void ppc_sys_device_enable(enum ppc_sys_devices dev);
+void ppc_sys_device_enable_all(void);
+void ppc_sys_device_disable_all(void);
+
 #endif				/* __ASM_PPC_SYS_H */
 #endif				/* __KERNEL__ */