^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2014 Free Electrons
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Allwinner PRCM (Power/Reset/Clock Management) driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/mfd/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define SUN8I_CODEC_ANALOG_BASE 0x1c0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define SUN8I_CODEC_ANALOG_SIZE 0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct prcm_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) int nsubdevs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) const struct mfd_cell *subdevs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static const struct resource sun6i_a31_ar100_clk_res[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .start = 0x0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .end = 0x3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) .flags = IORESOURCE_MEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static const struct resource sun6i_a31_apb0_clk_res[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .start = 0xc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) .end = 0xf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .flags = IORESOURCE_MEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static const struct resource sun6i_a31_apb0_gates_clk_res[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) .start = 0x28,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .end = 0x2b,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .flags = IORESOURCE_MEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static const struct resource sun6i_a31_ir_clk_res[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .start = 0x54,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .end = 0x57,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .flags = IORESOURCE_MEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) },
^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 const struct resource sun6i_a31_apb0_rstc_res[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) .start = 0xb0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) .end = 0xb3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) .flags = IORESOURCE_MEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static const struct resource sun8i_codec_analog_res[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) DEFINE_RES_MEM(SUN8I_CODEC_ANALOG_BASE, SUN8I_CODEC_ANALOG_SIZE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static const struct mfd_cell sun6i_a31_prcm_subdevs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) .name = "sun6i-a31-ar100-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .of_compatible = "allwinner,sun6i-a31-ar100-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .num_resources = ARRAY_SIZE(sun6i_a31_ar100_clk_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .resources = sun6i_a31_ar100_clk_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .name = "sun6i-a31-apb0-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .of_compatible = "allwinner,sun6i-a31-apb0-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .num_resources = ARRAY_SIZE(sun6i_a31_apb0_clk_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .resources = sun6i_a31_apb0_clk_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .name = "sun6i-a31-apb0-gates-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .of_compatible = "allwinner,sun6i-a31-apb0-gates-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .num_resources = ARRAY_SIZE(sun6i_a31_apb0_gates_clk_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .resources = sun6i_a31_apb0_gates_clk_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .name = "sun6i-a31-ir-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .of_compatible = "allwinner,sun4i-a10-mod0-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .num_resources = ARRAY_SIZE(sun6i_a31_ir_clk_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .resources = sun6i_a31_ir_clk_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .name = "sun6i-a31-apb0-clock-reset",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .of_compatible = "allwinner,sun6i-a31-clock-reset",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .num_resources = ARRAY_SIZE(sun6i_a31_apb0_rstc_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .resources = sun6i_a31_apb0_rstc_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static const struct mfd_cell sun8i_a23_prcm_subdevs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .name = "sun8i-a23-apb0-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .of_compatible = "allwinner,sun8i-a23-apb0-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .num_resources = ARRAY_SIZE(sun6i_a31_apb0_clk_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .resources = sun6i_a31_apb0_clk_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .name = "sun6i-a31-apb0-gates-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .of_compatible = "allwinner,sun8i-a23-apb0-gates-clk",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .num_resources = ARRAY_SIZE(sun6i_a31_apb0_gates_clk_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .resources = sun6i_a31_apb0_gates_clk_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .name = "sun6i-a31-apb0-clock-reset",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .of_compatible = "allwinner,sun6i-a31-clock-reset",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .num_resources = ARRAY_SIZE(sun6i_a31_apb0_rstc_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .resources = sun6i_a31_apb0_rstc_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .name = "sun8i-codec-analog",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .of_compatible = "allwinner,sun8i-a23-codec-analog",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .num_resources = ARRAY_SIZE(sun8i_codec_analog_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .resources = sun8i_codec_analog_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static const struct prcm_data sun6i_a31_prcm_data = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .nsubdevs = ARRAY_SIZE(sun6i_a31_prcm_subdevs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .subdevs = sun6i_a31_prcm_subdevs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static const struct prcm_data sun8i_a23_prcm_data = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) .nsubdevs = ARRAY_SIZE(sun8i_a23_prcm_subdevs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) .subdevs = sun8i_a23_prcm_subdevs,
^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) static const struct of_device_id sun6i_prcm_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) .compatible = "allwinner,sun6i-a31-prcm",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .data = &sun6i_a31_prcm_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) .compatible = "allwinner,sun8i-a23-prcm",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) .data = &sun8i_a23_prcm_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) { /* sentinel */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static int sun6i_prcm_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) const struct of_device_id *match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) const struct prcm_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct resource *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) match = of_match_node(sun6i_prcm_dt_ids, pdev->dev.of_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (!match)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) data = match->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (!res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) dev_err(&pdev->dev, "no prcm memory region provided\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) ret = mfd_add_devices(&pdev->dev, 0, data->subdevs, data->nsubdevs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) res, -1, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) dev_err(&pdev->dev, "failed to add subdevices\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static struct platform_driver sun6i_prcm_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) .name = "sun6i-prcm",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .of_match_table = sun6i_prcm_dt_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .probe = sun6i_prcm_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) builtin_platform_driver(sun6i_prcm_driver);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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