usb: composite: Move bitmap related operations to ./include/linux/bitmap.h

The BITMAP related operations can now be moved to ./include/linux/bitmap.h
file to mimic the Linux kernel directory tree.

This change also allows to remove the lin_gadget_compat.h header file
(which is a legacy code only for composite U-boot layer).
It was also possible to remove #includes from several USB gadget drivers.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Stefan Agner <stefan.agner@toradex.com>

14 files changed, 28 insertions, 46 deletions

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index e340cb268f..085f7b8968 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -16,7 +16,6 @@
 #include <common.h>
 #include <malloc.h>
 #include <asm/dma-mapping.h>
-#include <usb/lin_gadget_compat.h>
 #include <linux/bug.h>
 #include <linux/list.h>
 
diff --git a/drivers/usb/dwc3/ti_usb_phy.c b/drivers/usb/dwc3/ti_usb_phy.c
index d168e868e3..e7ea12c163 100644
--- a/drivers/usb/dwc3/ti_usb_phy.c
+++ b/drivers/usb/dwc3/ti_usb_phy.c
@@ -19,7 +19,6 @@
 #include <common.h>
 #include <malloc.h>
 #include <ti-usb-phy-uboot.h>
-#include <usb/lin_gadget_compat.h>
 #include <linux/ioport.h>
 #include <asm/io.h>
 #include <asm/arch/sys_proto.h>
diff --git a/drivers/usb/eth/r8152.c b/drivers/usb/eth/r8152.c
index 941158abdd..e5f73e3d4c 100644
--- a/drivers/usb/eth/r8152.c
+++ b/drivers/usb/eth/r8152.c
@@ -10,7 +10,6 @@
 #include <malloc.h>
 #include <memalign.h>
 #include <usb.h>
-#include <usb/lin_gadget_compat.h>
 #include <linux/mii.h>
 #include <linux/bitops.h>
 #include "usb_ether.h"
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 39ea87005c..2a6626b443 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -24,7 +24,6 @@
 #include <linux/usb/gadget.h>
 #include <linux/usb/at91_udc.h>
 #include <malloc.h>
-#include <usb/lin_gadget_compat.h>
 
 #include "at91_udc.h"
 
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index c9d483318f..dffa5117f9 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -16,7 +16,6 @@
 #include <linux/usb/gadget.h>
 #include <linux/usb/atmel_usba_udc.h>
 #include <malloc.h>
-#include <usb/lin_gadget_compat.h>
 
 #include "atmel_usba_udc.h"
 
diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c
index e3edd10e29..3c7ad033e3 100644
--- a/drivers/usb/gadget/dwc2_udc_otg.c
+++ b/drivers/usb/gadget/dwc2_udc_otg.c
@@ -33,7 +33,6 @@
 
 #include "dwc2_udc_otg_regs.h"
 #include "dwc2_udc_otg_priv.h"
-#include <usb/lin_gadget_compat.h>
 
 /***********************************************************/
 
diff --git a/drivers/usb/gadget/dwc2_udc_otg_phy.c b/drivers/usb/gadget/dwc2_udc_otg_phy.c
index 47aa78ae94..c4338af0d7 100644
--- a/drivers/usb/gadget/dwc2_udc_otg_phy.c
+++ b/drivers/usb/gadget/dwc2_udc_otg_phy.c
@@ -33,7 +33,6 @@
 
 #include "dwc2_udc_otg_regs.h"
 #include "dwc2_udc_otg_priv.h"
-#include <usb/lin_gadget_compat.h>
 
 #include <usb/dwc2_udc.h>
 
diff --git a/drivers/usb/gadget/dwc2_udc_otg_priv.h b/drivers/usb/gadget/dwc2_udc_otg_priv.h
index b64e222b6d..aaa90187fb 100644
--- a/drivers/usb/gadget/dwc2_udc_otg_priv.h
+++ b/drivers/usb/gadget/dwc2_udc_otg_priv.h
@@ -12,7 +12,6 @@
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
 #include <linux/list.h>
-#include <usb/lin_gadget_compat.h>
 #include <usb/dwc2_udc.h>
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index a3101afa0d..45c7b58eed 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -256,7 +256,7 @@
 #include <linux/usb/gadget.h>
 #include <linux/usb/gadget.h>
 #include <linux/usb/composite.h>
-#include <usb/lin_gadget_compat.h>
+#include <linux/bitmap.h>
 #include <g_dnl.h>
 
 /*------------------------------------------------------------------------*/
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index 44092df25b..09c0a30b2b 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -29,7 +29,6 @@
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
-#include <usb/lin_gadget_compat.h>
 #include <asm/arch/pxa-regs.h>
 
 #include "pxa25x_udc.h"
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
new file mode 100644
index 0000000000..4a54ae0509
--- /dev/null
+++ b/include/linux/bitmap.h
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+#ifndef __LINUX_BITMAP_H
+#define __LINUX_BITMAP_H
+
+#include <asm/types.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+
+#define small_const_nbits(nbits) \
+	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
+
+static inline void bitmap_zero(unsigned long *dst, int nbits)
+{
+	if (small_const_nbits(nbits)) {
+		*dst = 0UL;
+	} else {
+		int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+
+		memset(dst, 0, len);
+	}
+}
+
+#endif /* __LINUX_BITMAP_H */
diff --git a/include/linux/types.h b/include/linux/types.h
index 1f3cd63b8f..cc6f7cb39e 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -158,4 +158,7 @@ struct ustat {
 	char			f_fpack[6];
 };
 
+#define DECLARE_BITMAP(name, bits) \
+	unsigned long name[BITS_TO_LONGS(bits)]
+
 #endif /* _LINUX_TYPES_H */
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 30c464ce39..a49a66f2f8 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -24,7 +24,7 @@
 #include <common.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
-#include <usb/lin_gadget_compat.h>
+#include <linux/bitmap.h>
 
 /*
  * USB function drivers should return USB_GADGET_DELAYED_STATUS if they
diff --git a/include/usb/lin_gadget_compat.h b/include/usb/lin_gadget_compat.h
deleted file mode 100644
index e5dba473b7..0000000000
--- a/include/usb/lin_gadget_compat.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (c) 2011 Samsung Electronics
- * Lukasz Majewski <l.majewski@samsung.com>
- *
- * This is a Linux kernel compatibility layer for USB Gadget
- */
-
-#ifndef __LIN_COMPAT_H__
-#define __LIN_COMPAT_H__
-
-#include <linux/bitops.h>
-#include <linux/compat.h>
-
-/* common */
-#define DECLARE_BITMAP(name, bits) \
-	unsigned long name[BITS_TO_LONGS(bits)]
-
-#define small_const_nbits(nbits) \
-	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
-
-static inline void bitmap_zero(unsigned long *dst, int nbits)
-{
-	if (small_const_nbits(nbits))
-		*dst = 0UL;
-	else {
-		int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
-		memset(dst, 0, len);
-	}
-}
-
-#define dma_cache_maint(addr, size, mode) cache_flush()
-void cache_flush(void);
-
-#endif /* __LIN_COMPAT_H__ */