ARM: OMAP: McBSP: Prepare for splitting into omap1 and omap2 code

This patch transform mcbsp code to use platform data
from arch/arm/plat-omap/devices.c

It also gets ride of ifdefs on mcbsp.c code.
To do it, a platform data structure was defined.

Signed-off-by: Eduardo Valentin <eduardo.valentin@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 60 insertions, 2 deletions

diff --git a/include/asm-arm/arch-omap/mcbsp.h b/include/asm-arm/arch-omap/mcbsp.h
index c7a0cc1c4e93..26c78f67dc8e 100644
--- a/include/asm-arm/arch-omap/mcbsp.h
+++ b/include/asm-arm/arch-omap/mcbsp.h
@@ -24,7 +24,11 @@
 #ifndef __ASM_ARCH_OMAP_MCBSP_H
 #define __ASM_ARCH_OMAP_MCBSP_H
 
+#include <linux/completion.h>
+#include <linux/spinlock.h>
+
 #include <asm/hardware.h>
+#include <asm/arch/clock.h>
 
 #define OMAP730_MCBSP1_BASE     0xfffb1000
 #define OMAP730_MCBSP2_BASE     0xfffb1800
@@ -40,6 +44,9 @@
 #define OMAP24XX_MCBSP1_BASE    0x48074000
 #define OMAP24XX_MCBSP2_BASE    0x48076000
 
+#define OMAP34XX_MCBSP1_BASE    0x48074000
+#define OMAP34XX_MCBSP2_BASE    0x49022000
+
 #if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP730)
 
 #define OMAP_MCBSP_REG_DRR2     0x00
@@ -74,7 +81,8 @@
 #define OMAP_MCBSP_REG_XCERG    0x3A
 #define OMAP_MCBSP_REG_XCERH    0x3C
 
-#define OMAP_MAX_MCBSP_COUNT 3
+#define OMAP_MAX_MCBSP_COUNT    3
+#define MAX_MCBSP_CLOCKS        3
 
 #define AUDIO_MCBSP_DATAWRITE   (OMAP1510_MCBSP1_BASE + OMAP_MCBSP_REG_DXR1)
 #define AUDIO_MCBSP_DATAREAD    (OMAP1510_MCBSP1_BASE + OMAP_MCBSP_REG_DRR1)
@@ -117,7 +125,8 @@
 #define OMAP_MCBSP_REG_XCERG    0x74
 #define OMAP_MCBSP_REG_XCERH    0x78
 
-#define OMAP_MAX_MCBSP_COUNT 2
+#define OMAP_MAX_MCBSP_COUNT    2
+#define MAX_MCBSP_CLOCKS        2
 
 #define AUDIO_MCBSP_DATAWRITE   (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DXR1)
 #define AUDIO_MCBSP_DATAREAD    (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DRR1)
@@ -298,6 +307,55 @@ struct omap_mcbsp_spi_cfg {
         omap_mcbsp_word_length          word_length;
 };
 
+/* Platform specific configuration */
+struct omap_mcbsp_ops {
+        void (*request)(unsigned int);
+        void (*free)(unsigned int);
+        int (*check)(unsigned int);
+};
+
+struct omap_mcbsp_platform_data {
+        u32 virt_base;
+        u8 dma_rx_sync, dma_tx_sync;
+        u16 rx_irq, tx_irq;
+        struct omap_mcbsp_ops *ops;
+        char const *clk_name;
+};
+
+struct omap_mcbsp {
+        struct device *dev;
+        u32 io_base;
+        u8 id;
+        u8 free;
+        omap_mcbsp_word_length rx_word_length;
+        omap_mcbsp_word_length tx_word_length;
+
+        omap_mcbsp_io_type_t io_type; /* IRQ or poll */
+        /* IRQ based TX/RX */
+        int rx_irq;
+        int tx_irq;
+
+        /* DMA stuff */
+        u8 dma_rx_sync;
+        short dma_rx_lch;
+        u8 dma_tx_sync;
+        short dma_tx_lch;
+
+        /* Completion queues */
+        struct completion tx_irq_completion;
+        struct completion rx_irq_completion;
+        struct completion tx_dma_completion;
+        struct completion rx_dma_completion;
+
+        /* Protect the field .free, while checking if the mcbsp is in use */
+        spinlock_t lock;
+        struct omap_mcbsp_platform_data *pdata;
+        struct clk *clk;
+};
+
+int omap_mcbsp_init(void);
+void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
+                                        int size);
 void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg * config);
 int omap_mcbsp_request(unsigned int id);
 void omap_mcbsp_free(unsigned int id);