ARM: omap: fix missing declaration warnings

Moving the plat-omap files triggered a sparse warning for omap1 and
omap2 that is now in a different file from before. Found some more sparse
warnings here that I address by making sure the declaration is visible
to both the caller and the callee, or they are static

mach-omap1/fb.c:33:17: warning: symbol 'omap_fb_resources' was not declared. Should it be static?
mach-omap1/timer32k.c:215:12: warning: symbol 'omap_init_clocksource_32k' was not declared. Should it be static?
mach-omap1/i2c.c:36:12: warning: symbol 'omap_i2c_add_bus' was not declared. Should it be static?
mach-omap1/i2c.c:115:12: warning: symbol 'omap_register_i2c_bus_cmdline' was not declared. Should it be static?
mach-omap1/i2c.c:140:12: warning: symbol 'omap_register_i2c_bus' was not declared. Should it be static?
mach-omap2/dma.c:180:34: warning: symbol 'dma_plat_info' was not declared. Should it be static?
mach-omap2/omap4-common.c:116:6: warning: symbol 'omap_interconnect_sync' was not declared. Should it be static?
mach-omap2/omap-iommu.c:113:5: warning: symbol 'omap_iommu_set_pwrdm_constraint' was not declared. Should it be static?

Reported-by: kernel test robot <[e-mail]>
Reviewed-by: Tony Lindgren <[e-mail]>
Tested-by: Tony Lindgren <[e-mail]>
Signed-off-by: Arnd Bergmann <[e-mail]>

arch/arm/mach-omap1/fb.c

···
 
 static u64 omap_fb_dma_mask = ~(u32)0;
 
-struct resource omap_fb_resources[] = {
+static struct resource omap_fb_resources[] = {
 	{
 		.name  = "irq",
 		.start = INT_LCD_CTRL,

arch/arm/mach-omap1/i2c.c

···
 
 #include "mux.h"
 #include "soc.h"
+#include "i2c.h"
 
 #define OMAP_I2C_SIZE		0x3f
 #define OMAP1_I2C_BASE		0xfffb3800

arch/arm/mach-omap1/timer32k.c

···
  * Returns 0 upon success or negative error code upon failure.
  *
  */
-int __init omap_init_clocksource_32k(void __iomem *vbase)
+static int __init omap_init_clocksource_32k(void __iomem *vbase)
 {
 	int ret;
 

arch/arm/mach-omap2/common.h

···
 extern void __iomem *omap4_get_sar_ram_base(void);
 extern void omap4_mpuss_early_init(void);
 extern void omap_do_wfi(void);
-
+extern void omap_interconnect_sync(void);
 
 #ifdef CONFIG_SMP
 /* Needed for secondary core boot */
···
 
 /* SoC specific clock initializer */
 int omap_clk_init(void);
+
+#if IS_ENABLED(CONFIG_OMAP_IOMMU)
+int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev, bool request,
+				    u8 *pwrst);
+#else
+static inline int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev,
+						  bool request, u8 *pwrst)
+{
+	return 0;
+}
+#endif
 
 #endif /* __ASSEMBLER__ */
 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */

arch/arm/mach-omap2/dma.c

···
 #include <linux/omap-dma.h>
 
 #include "soc.h"
+#include "common.h"
 
 static const struct omap_dma_reg reg_map[] = {
 	[REVISION]	= { 0x0000, 0x00, OMAP_DMA_REG_32BIT },

arch/arm/mach-omap2/omap-iommu.c

···
 
 #include "clockdomain.h"
 #include "powerdomain.h"
+#include "common.h"
 
 struct pwrdm_link {
 	struct device *dev;

arch/arm/mach-omap2/pdata-quirks.c

···
 static struct of_dev_auxdata omap_auxdata_lookup[];
 static struct twl4030_gpio_platform_data twl_gpio_auxdata;
 
-#if IS_ENABLED(CONFIG_OMAP_IOMMU)
-int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev, bool request,
-				    u8 *pwrst);
-#else
-static inline int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev,
-						  bool request, u8 *pwrst)
-{
-	return 0;
-}
-#endif
-
 #ifdef CONFIG_MACH_NOKIA_N8X0
 static void __init omap2420_n8x0_legacy_init(void)
 {