^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) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/gfp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) static void devm_clk_release(struct device *dev, void *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) clk_put(*(struct clk **)res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct clk *devm_clk_get(struct device *dev, const char *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) struct clk **ptr, *clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) if (!ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) clk = clk_get(dev, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) if (!IS_ERR(clk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) *ptr = clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) devres_add(dev, ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) devres_free(ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) EXPORT_SYMBOL(devm_clk_get);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct clk *devm_clk_get_optional(struct device *dev, const char *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct clk *clk = devm_clk_get(dev, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if (clk == ERR_PTR(-ENOENT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) return clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) EXPORT_SYMBOL(devm_clk_get_optional);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct clk_bulk_devres {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct clk_bulk_data *clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) int num_clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static void devm_clk_bulk_release(struct device *dev, void *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct clk_bulk_devres *devres = res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) clk_bulk_put(devres->num_clks, devres->clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int __devm_clk_bulk_get(struct device *dev, int num_clks,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct clk_bulk_data *clks, bool optional)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct clk_bulk_devres *devres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) devres = devres_alloc(devm_clk_bulk_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) sizeof(*devres), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) if (!devres)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) if (optional)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) ret = clk_bulk_get_optional(dev, num_clks, clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) ret = clk_bulk_get(dev, num_clks, clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) devres->clks = clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) devres->num_clks = num_clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) devres_add(dev, devres);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) devres_free(devres);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int __must_check devm_clk_bulk_get(struct device *dev, int num_clks,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct clk_bulk_data *clks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return __devm_clk_bulk_get(dev, num_clks, clks, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) EXPORT_SYMBOL_GPL(devm_clk_bulk_get);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int __must_check devm_clk_bulk_get_optional(struct device *dev, int num_clks,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct clk_bulk_data *clks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) return __devm_clk_bulk_get(dev, num_clks, clks, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) EXPORT_SYMBOL_GPL(devm_clk_bulk_get_optional);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static void devm_clk_bulk_release_all(struct device *dev, void *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct clk_bulk_devres *devres = res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) clk_bulk_put_all(devres->num_clks, devres->clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int __must_check devm_clk_bulk_get_all(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct clk_bulk_data **clks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct clk_bulk_devres *devres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) devres = devres_alloc(devm_clk_bulk_release_all,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) sizeof(*devres), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (!devres)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) ret = clk_bulk_get_all(dev, &devres->clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if (ret > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) *clks = devres->clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) devres->num_clks = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) devres_add(dev, devres);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) devres_free(devres);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) EXPORT_SYMBOL_GPL(devm_clk_bulk_get_all);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static int devm_clk_match(struct device *dev, void *res, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct clk **c = res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (!c || !*c) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) WARN_ON(!c || !*c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return *c == data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) void devm_clk_put(struct device *dev, struct clk *clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) ret = devres_release(dev, devm_clk_release, devm_clk_match, clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) WARN_ON(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) EXPORT_SYMBOL(devm_clk_put);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) struct clk *devm_get_clk_from_child(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) struct device_node *np, const char *con_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct clk **ptr, *clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (!ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) clk = of_clk_get_by_name(np, con_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (!IS_ERR(clk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) *ptr = clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) devres_add(dev, ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) devres_free(ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) return clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) EXPORT_SYMBOL(devm_get_clk_from_child);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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