disable pwm7

hc

2024-05-10 23fa18eaa71266feff7ba8d83022d9e1cc83c65a

 kernel/include/linux/bitfield.h
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@@ -1,15 +1,7 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2014 Felix Fietkau <nbd@nbd.name>
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  * Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2
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- * as published by the Free Software Foundation
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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  */
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6
 
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 #ifndef _LINUX_BITFIELD_H
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@@ -49,6 +41,22 @@
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 #define __bf_shf(x) (__builtin_ffsll(x) - 1)
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43
 
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+#define __scalar_type_to_unsigned_cases(type)				\
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+		unsigned type:	(unsigned type)0,			\
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+		signed type:	(unsigned type)0
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+
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+#define __unsigned_scalar_typeof(x) typeof(				\
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+		_Generic((x),						\
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+			char:	(unsigned char)0,			\
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+			__scalar_type_to_unsigned_cases(char),		\
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+			__scalar_type_to_unsigned_cases(short),		\
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+			__scalar_type_to_unsigned_cases(int),		\
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+			__scalar_type_to_unsigned_cases(long),		\
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+			__scalar_type_to_unsigned_cases(long long),	\
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+			default: (x)))
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+
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+#define __bf_cast_unsigned(type, x)	((__unsigned_scalar_typeof(type))(x))
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+
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 #define __BF_FIELD_CHECK(_mask, _reg, _val, _pfx)			\
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 	({								\
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 		BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask),		\
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@@ -57,10 +65,24 @@
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 		BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?		\
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 				 ~((_mask) >> __bf_shf(_mask)) & (_val) : 0, \
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 				 _pfx "value too large for the field"); \
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-		BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull,		\
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+		BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) >	\
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+				 __bf_cast_unsigned(_reg, ~0ull),	\
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 				 _pfx "type of reg too small for mask"); \
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 		__BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +			\
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 					      (1ULL << __bf_shf(_mask))); \
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+	})
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+
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+/**
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+ * FIELD_MAX() - produce the maximum value representable by a field
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+ * @_mask: shifted mask defining the field's length and position
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+ *
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+ * FIELD_MAX() returns the maximum value that can be held in the field
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+ * specified by @_mask.
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+ */
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+#define FIELD_MAX(_mask)						\
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+	({								\
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+		__BF_FIELD_CHECK(_mask, 0ULL, 0ULL, "FIELD_MAX: ");	\
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+		(typeof(_mask))((_mask) >> __bf_shf(_mask));		\
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 	})
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 /**
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@@ -118,6 +140,7 @@
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 {
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 	return field / field_multiplier(field);
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 }
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+#define field_max(field)	((typeof(field))field_mask(field))
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 #define ____MAKE_OP(type,base,to,from)					\
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 static __always_inline __##type type##_encode_bits(base v, base field)	\
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 {									\