[ARM] pxa: introduce PXA_SSP_LEGACY for legacy SSP API

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

3 files changed, 13 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 3602c729b89a..38fbd0a0e402 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -458,6 +458,7 @@ config SHARPSL_PM
 config CORGI_SSP_DEPRECATED
         bool
         select PXA_SSP
+        select PXA_SSP_LEGACY
         help
           This option will include corgi_ssp.c and corgi_lcd.c
           that corgi_ts.c and other legacy drivers (corgi_bl.c
@@ -658,6 +659,11 @@ config PXA_SSP
         help
           Enable support for PXA2xx SSP ports
 
+config PXA_SSP_LEGACY
+        bool
+        help
+          Support of legacy SSP API
+
 config TOSA_BT
         tristate "Control the state of built-in bluetooth chip on Sharp SL-6000"
         depends on MACH_TOSA
diff --git a/arch/arm/mach-pxa/include/mach/ssp.h b/arch/arm/mach-pxa/include/mach/ssp.h
index cb5cb766f0f1..be1be5b6db51 100644
--- a/arch/arm/mach-pxa/include/mach/ssp.h
+++ b/arch/arm/mach-pxa/include/mach/ssp.h
@@ -46,6 +46,7 @@ struct ssp_device {
         int             drcmr_tx;
 };
 
+#ifdef CONFIG_PXA_SSP_LEGACY
 /*
  * SSP initialisation flags
  */
@@ -78,6 +79,7 @@ void ssp_restore_state(struct ssp_dev *dev, struct ssp_state *ssp);
 int ssp_init(struct ssp_dev *dev, u32 port, u32 init_flags);
 int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 speed);
 void ssp_exit(struct ssp_dev *dev);
+#endif /* CONFIG_PXA_SSP_LEGACY */
 
 /**
  * ssp_write_reg - Write to a SSP register
diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index 9ebe658590fa..a81d6dbf662d 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -35,6 +35,8 @@
 #include <mach/ssp.h>
 #include <mach/regs-ssp.h>
 
+#ifdef CONFIG_PXA_SSP_LEGACY
+
 #define TIMEOUT 100000
 
 static irqreturn_t ssp_interrupt(int irq, void *dev_id)
@@ -303,6 +305,7 @@ void ssp_exit(struct ssp_dev *dev)
         clk_disable(ssp->clk);
         ssp_free(ssp);
 }
+#endif /* CONFIG_PXA_SSP_LEGACY */
 
 static DEFINE_MUTEX(ssp_lock);
 static LIST_HEAD(ssp_list);
@@ -488,6 +491,7 @@ static void __exit pxa_ssp_exit(void)
 arch_initcall(pxa_ssp_init);
 module_exit(pxa_ssp_exit);
 
+#ifdef CONFIG_PXA_SSP_LEGACY
 EXPORT_SYMBOL(ssp_write_word);
 EXPORT_SYMBOL(ssp_read_word);
 EXPORT_SYMBOL(ssp_flush);
@@ -498,6 +502,7 @@ EXPORT_SYMBOL(ssp_restore_state);
 EXPORT_SYMBOL(ssp_init);
 EXPORT_SYMBOL(ssp_exit);
 EXPORT_SYMBOL(ssp_config);
+#endif
 
 MODULE_DESCRIPTION("PXA SSP driver");
 MODULE_AUTHOR("Liam Girdwood");