omap2+: Add struct omap_board_data and use it for platform level serial init

This is needed to pass board specific data such as pads used to the
platform level driver init code.

Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 34 insertions, 8 deletions

diff --git a/arch/arm/mach-omap2/mux.h b/arch/arm/mach-omap2/mux.h
index c9ec50de99c9..a4ab17a737a6 100644
--- a/arch/arm/mach-omap2/mux.h
+++ b/arch/arm/mach-omap2/mux.h
@@ -87,6 +87,20 @@
 #define OMAP_MUX_GPIO_IN_MODE3          (1 << 1)
 
 /**
+ * struct omap_board_data - board specific device data
+ * @id: instance id
+ * @flags: additional flags for platform init code
+ * @pads: array of device specific pads
+ * @pads_cnt: ARRAY_SIZE() of pads
+ */
+struct omap_board_data {
+        int                     id;
+        u32                     flags;
+        struct omap_device_pad  *pads;
+        int                     pads_cnt;
+};
+
+/**
  * struct mux_partition - contain partition related information
  * @name: name of the current partition
  * @flags: flags specific to this partition
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index c8740ba4fba5..c64578853a8d 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -45,6 +45,7 @@
 #include "cm2xxx_3xxx.h"
 #include "prm-regbits-34xx.h"
 #include "control.h"
+#include "mux.h"
 
 #define UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV     0x52
 #define UART_OMAP_WER           0x17    /* Wake-up enable register */
@@ -694,16 +695,16 @@ void __init omap_serial_early_init(void)
 
 /**
  * omap_serial_init_port() - initialize single serial port
- * @port: serial port number (0-3)
+ * @bdata: port specific board data pointer
  *
- * This function initialies serial driver for given @port only.
+ * This function initialies serial driver for given port only.
  * Platforms can call this function instead of omap_serial_init()
  * if they don't plan to use all available UARTs as serial ports.
  *
  * Don't mix calls to omap_serial_init_port() and omap_serial_init(),
  * use only one of the two.
  */
-void __init omap_serial_init_port(int port)
+void __init omap_serial_init_port(struct omap_board_data *bdata)
 {
         struct omap_uart_state *uart;
         struct omap_hwmod *oh;
@@ -721,13 +722,15 @@ void __init omap_serial_init_port(int port)
         struct omap_uart_port_info omap_up;
 #endif
 
-        if (WARN_ON(port < 0))
+        if (WARN_ON(!bdata))
                 return;
-        if (WARN_ON(port >= num_uarts))
+        if (WARN_ON(bdata->id < 0))
+                return;
+        if (WARN_ON(bdata->id >= num_uarts))
                 return;
 
         list_for_each_entry(uart, &uart_list, node)
-                if (port == uart->num)
+                if (bdata->id == uart->num)
                         break;
 
         oh = uart->oh;
@@ -799,6 +802,8 @@ void __init omap_serial_init_port(int port)
         WARN(IS_ERR(od), "Could not build omap_device for %s: %s.\n",
              name, oh->name);
 
+        oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt);
+
         uart->irq = oh->mpu_irqs[0].irq;
         uart->regshift = 2;
         uart->mapbase = oh->slaves[0]->addr->pa_start;
@@ -856,7 +861,14 @@ void __init omap_serial_init_port(int port)
 void __init omap_serial_init(void)
 {
         struct omap_uart_state *uart;
+        struct omap_board_data bdata;
 
-        list_for_each_entry(uart, &uart_list, node)
-                omap_serial_init_port(uart->num);
+        list_for_each_entry(uart, &uart_list, node) {
+                bdata.id = uart->num;
+                bdata.flags = 0;
+                bdata.pads = NULL;
+                bdata.pads_cnt = 0;
+                omap_serial_init_port(&bdata);
+
+        }
 }