From: Arnd Bergmann arnd@arndb.de
Most of the plat-omap/dma.c code is specific to the USB driver. Hide that code when it is not in use, to make it clearer which parts are actually still required.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- arch/arm/plat-omap/dma.c | 45 +++++++++++++++++----------------- drivers/usb/gadget/udc/Kconfig | 2 +- include/linux/omap-dma.h | 5 +++- 3 files changed, 27 insertions(+), 25 deletions(-)
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 700ba9b600e7..b7757864d0aa 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -66,7 +66,6 @@ enum { DMA_CHAIN_STARTED, DMA_CHAIN_NOTSTARTED };
static struct omap_system_dma_plat_info *p; static struct omap_dma_dev_attr *d; -static void omap_clear_dma(int lch); static int enable_1510_mode; static u32 errata;
@@ -90,19 +89,16 @@ static int omap_dma_reserve_channels; static DEFINE_SPINLOCK(dma_chan_lock); static struct omap_dma_lch *dma_chan;
-static inline void disable_lnk(int lch); -static void omap_disable_channel_irq(int lch); -static inline void omap_enable_channel_irq(int lch); - -#ifdef CONFIG_ARCH_OMAP15XX -/* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */ -static int omap_dma_in_1510_mode(void) +static inline void omap_disable_channel_irq(int lch) { - return enable_1510_mode; + /* disable channel interrupts */ + p->dma_write(0, CICR, lch); + /* Clear CSR */ + if (dma_omap1()) + p->dma_read(CSR, lch); + else + p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch); } -#else -#define omap_dma_in_1510_mode() 0 -#endif
#ifdef CONFIG_ARCH_OMAP1 static inline void set_gdma_dev(int req, int dev) @@ -169,6 +165,17 @@ void omap_set_dma_priority(int lch, int dst_port, int priority) #endif EXPORT_SYMBOL(omap_set_dma_priority);
+#if IS_ENABLED(CONFIG_USB_OMAP) +#ifdef CONFIG_ARCH_OMAP15XX +/* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */ +static int omap_dma_in_1510_mode(void) +{ + return enable_1510_mode; +} +#else +#define omap_dma_in_1510_mode() 0 +#endif + void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, int frame_count, int sync_mode, int dma_trigger, int src_or_dst_synch) @@ -418,17 +425,6 @@ static inline void omap_enable_channel_irq(int lch) p->dma_write(dma_chan[lch].enabled_irqs, CICR, lch); }
-static inline void omap_disable_channel_irq(int lch) -{ - /* disable channel interrupts */ - p->dma_write(0, CICR, lch); - /* Clear CSR */ - if (dma_omap1()) - p->dma_read(CSR, lch); - else - p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch); -} - void omap_disable_dma_irq(int lch, u16 bits) { dma_chan[lch].enabled_irqs &= ~bits; @@ -473,6 +469,7 @@ static inline void disable_lnk(int lch) p->dma_write(l, CLNK_CTRL, lch); dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE; } +#endif
int omap_request_dma(int dev_id, const char *dev_name, void (*callback)(int lch, u16 ch_status, void *data), @@ -572,6 +569,7 @@ static void omap_clear_dma(int lch) local_irq_restore(flags); }
+#if IS_ENABLED(CONFIG_USB_OMAP) void omap_start_dma(int lch) { u32 l; @@ -792,6 +790,7 @@ int omap_get_dma_active_status(int lch) return (p->dma_read(CCR, lch) & OMAP_DMA_CCR_EN) != 0; } EXPORT_SYMBOL(omap_get_dma_active_status); +#endif
int omap_dma_running(void) { diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig index cee934dce4f0..69394dc1cdfb 100644 --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -128,7 +128,7 @@ config USB_GR_UDC
config USB_OMAP tristate "OMAP USB Device Controller" - depends on ARCH_OMAP1 || (ARCH_OMAP && COMPILE_TEST) + depends on ARCH_OMAP1 depends on ISP1301_OMAP || !(MACH_OMAP_H2 || MACH_OMAP_H3) help Many Texas Instruments OMAP processors have flexible full diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h index 5e228428fda1..07fa58ae9902 100644 --- a/include/linux/omap-dma.h +++ b/include/linux/omap-dma.h @@ -299,8 +299,9 @@ extern void omap_set_dma_priority(int lch, int dst_port, int priority); extern int omap_request_dma(int dev_id, const char *dev_name, void (*callback)(int lch, u16 ch_status, void *data), void *data, int *dma_ch); -extern void omap_disable_dma_irq(int ch, u16 irq_bits); extern void omap_free_dma(int ch); +#if IS_ENABLED(CONFIG_USB_OMAP) +extern void omap_disable_dma_irq(int ch, u16 irq_bits); extern void omap_start_dma(int lch); extern void omap_stop_dma(int lch); extern void omap_set_dma_transfer_params(int lch, int data_type, @@ -326,6 +327,8 @@ extern void omap_set_dma_dest_burst_mode(int lch, extern dma_addr_t omap_get_dma_src_pos(int lch); extern dma_addr_t omap_get_dma_dst_pos(int lch); extern int omap_get_dma_active_status(int lch); +#endif + extern int omap_dma_running(void);
#if IS_ENABLED(CONFIG_FB_OMAP)