staging: sm750fb: replace custom MB(x) macro with appropriate SZ_xM

Use SZ_xM defined in linux/sizes.h instead of custom MB(x) macro
Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/ddk750_chip.c

+#include <linux/sizes.h>
+
 #include "ddk750_help.h"
 #include "ddk750_reg.h"
 #include "ddk750_chip.h"
@@ -226,7 +228,7 @@ unsigned int ddk750_getVMSize(void)
 
 	/* sm750le only use 64 mb memory*/
 	if (getChipType() == SM750LE)
-		return MB(64);
+		return SZ_64M;
 
 	/* for 750,always use power mode0*/
 	reg = PEEK32(MODE0_GATE);
@@ -237,13 +239,13 @@ unsigned int ddk750_getVMSize(void)
 	reg = FIELD_GET(PEEK32(MISC_CTRL), MISC_CTRL, LOCALMEM_SIZE);
 	switch (reg) {
 	case MISC_CTRL_LOCALMEM_SIZE_8M:
-		data = MB(8);  break; /* 8  Mega byte */
+		data = SZ_8M;  break; /* 8  Mega byte */
 	case MISC_CTRL_LOCALMEM_SIZE_16M:
-		data = MB(16); break; /* 16 Mega byte */
+		data = SZ_16M; break; /* 16 Mega byte */
 	case MISC_CTRL_LOCALMEM_SIZE_32M:
-		data = MB(32); break; /* 32 Mega byte */
+		data = SZ_32M; break; /* 32 Mega byte */
 	case MISC_CTRL_LOCALMEM_SIZE_64M:
-		data = MB(64); break; /* 64 Mega byte */
+		data = SZ_64M; break; /* 64 Mega byte */
 	default:
 		data = 0;
 		break;

drivers/staging/sm750fb/sm750_hw.c

@@ -18,6 +18,7 @@
 #endif
 #include <linux/platform_device.h>
 #include <linux/screen_info.h>
+#include <linux/sizes.h>
 
 #include "sm750.h"
 #include "sm750_hw.h"
@@ -34,7 +35,7 @@ int hw_sm750_map(struct lynx_share *share, struct pci_dev *pdev)
 	ret = 0;
 
 	share->vidreg_start  = pci_resource_start(pdev, 1);
-	share->vidreg_size = MB(2);
+	share->vidreg_size = SZ_2M;
 
 	pr_info("mmio phyAddr = %lx\n", share->vidreg_start);