Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) // Register map access API - AC'97 support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) // Copyright 2013 Linaro Ltd.  All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <sound/ac97_codec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	case AC97_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	case AC97_POWERDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	case AC97_INT_PAGING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	case AC97_EXTENDED_ID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	case AC97_EXTENDED_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	case AC97_EXTENDED_MID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	case AC97_EXTENDED_MSTATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	case AC97_GPIO_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	case AC97_MISC_AFE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	case AC97_VENDOR_ID1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	case AC97_VENDOR_ID2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	case AC97_CODEC_CLASS_REV:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	case AC97_PCI_SVID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	case AC97_PCI_SID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	case AC97_FUNC_SELECT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	case AC97_FUNC_INFO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	case AC97_SENSE_INFO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) EXPORT_SYMBOL_GPL(regmap_ac97_default_volatile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static int regmap_ac97_reg_read(void *context, unsigned int reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	unsigned int *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	struct snd_ac97 *ac97 = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	*val = ac97->bus->ops->read(ac97, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static int regmap_ac97_reg_write(void *context, unsigned int reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	unsigned int val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	struct snd_ac97 *ac97 = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	ac97->bus->ops->write(ac97, reg, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static const struct regmap_bus ac97_regmap_bus = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	.reg_write = regmap_ac97_reg_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	.reg_read = regmap_ac97_reg_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 				  const struct regmap_config *config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 				  struct lock_class_key *lock_key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 				  const char *lock_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 	return __regmap_init(&ac97->dev, &ac97_regmap_bus, ac97, config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 			     lock_key, lock_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) EXPORT_SYMBOL_GPL(__regmap_init_ac97);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 				       const struct regmap_config *config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 				       struct lock_class_key *lock_key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 				       const char *lock_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 	return __devm_regmap_init(&ac97->dev, &ac97_regmap_bus, ac97, config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 				  lock_key, lock_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) EXPORT_SYMBOL_GPL(__devm_regmap_init_ac97);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) MODULE_LICENSE("GPL v2");