1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // Copyright 2023 NXP 4 // 5 6 #include <dt-bindings/clock/imx8-clock.h> 7 #include <linux/clk-provider.h> 8 #include <linux/device.h> 9 #include <linux/err.h> 10 #include <linux/io.h> 11 #include <linux/module.h> 12 #include <linux/of.h> 13 #include <linux/of_device.h> 14 #include <linux/platform_device.h> 15 #include <linux/pm_domain.h> 16 #include <linux/pm_runtime.h> 17 #include <linux/slab.h> 18 19 #include "clk.h" 20 21 /** 22 * struct clk_imx_acm_pm_domains - structure for multi power domain 23 * @pd_dev: power domain device 24 * @pd_dev_link: power domain device link 25 * @num_domains: power domain nummber 26 */ 27 struct clk_imx_acm_pm_domains { 28 struct device **pd_dev; 29 struct device_link **pd_dev_link; 30 int num_domains; 31 }; 32 33 /** 34 * struct clk_imx8_acm_sel - for clock mux 35 * @name: clock name 36 * @clkid: clock id 37 * @parents: clock parents 38 * @num_parents: clock parents number 39 * @reg: register offset 40 * @shift: bit shift in register 41 * @width: bits width 42 */ 43 struct clk_imx8_acm_sel { 44 const char *name; 45 int clkid; 46 const struct clk_parent_data *parents; /* For mux */ 47 int num_parents; 48 u32 reg; 49 u8 shift; 50 u8 width; 51 }; 52 53 /** 54 * struct imx8_acm_soc_data - soc specific data 55 * @sels: pointer to struct clk_imx8_acm_sel 56 * @num_sels: numbers of items 57 */ 58 struct imx8_acm_soc_data { 59 struct clk_imx8_acm_sel *sels; 60 unsigned int num_sels; 61 }; 62 63 /** 64 * struct imx8_acm_priv - private structure 65 * @dev_pm: multi power domain 66 * @soc_data: pointer to soc data 67 * @reg: base address of registers 68 * @regs: save registers for suspend 69 */ 70 struct imx8_acm_priv { 71 struct clk_imx_acm_pm_domains dev_pm; 72 const struct imx8_acm_soc_data *soc_data; 73 void __iomem *reg; 74 u32 regs[IMX_ADMA_ACM_CLK_END]; 75 }; 76 77 static const struct clk_parent_data imx8qm_aud_clk_sels[] = { 78 { .fw_name = "aud_rec_clk0_lpcg_clk" }, 79 { .fw_name = "aud_rec_clk1_lpcg_clk" }, 80 { .fw_name = "mlb_clk" }, 81 { .fw_name = "hdmi_rx_mclk" }, 82 { .fw_name = "ext_aud_mclk0" }, 83 { .fw_name = "ext_aud_mclk1" }, 84 { .fw_name = "esai0_rx_clk" }, 85 { .fw_name = "esai0_rx_hf_clk" }, 86 { .fw_name = "esai0_tx_clk" }, 87 { .fw_name = "esai0_tx_hf_clk" }, 88 { .fw_name = "esai1_rx_clk" }, 89 { .fw_name = "esai1_rx_hf_clk" }, 90 { .fw_name = "esai1_tx_clk" }, 91 { .fw_name = "esai1_tx_hf_clk" }, 92 { .fw_name = "spdif0_rx" }, 93 { .fw_name = "spdif1_rx" }, 94 { .fw_name = "sai0_rx_bclk" }, 95 { .fw_name = "sai0_tx_bclk" }, 96 { .fw_name = "sai1_rx_bclk" }, 97 { .fw_name = "sai1_tx_bclk" }, 98 { .fw_name = "sai2_rx_bclk" }, 99 { .fw_name = "sai3_rx_bclk" }, 100 { .fw_name = "sai4_rx_bclk" }, 101 }; 102 103 static const struct clk_parent_data imx8qm_mclk_out_sels[] = { 104 { .fw_name = "aud_rec_clk0_lpcg_clk" }, 105 { .fw_name = "aud_rec_clk1_lpcg_clk" }, 106 { .fw_name = "mlb_clk" }, 107 { .fw_name = "hdmi_rx_mclk" }, 108 { .fw_name = "spdif0_rx" }, 109 { .fw_name = "spdif1_rx" }, 110 { .fw_name = "sai4_rx_bclk" }, 111 { .fw_name = "sai6_rx_bclk" }, 112 }; 113 114 static const struct clk_parent_data imx8qm_mclk_sels[] = { 115 { .fw_name = "aud_pll_div_clk0_lpcg_clk" }, 116 { .fw_name = "aud_pll_div_clk1_lpcg_clk" }, 117 { .fw_name = "acm_aud_clk0_sel" }, 118 { .fw_name = "acm_aud_clk1_sel" }, 119 }; 120 121 static const struct clk_parent_data imx8qm_asrc_mux_clk_sels[] = { 122 { .fw_name = "sai4_rx_bclk" }, 123 { .fw_name = "sai5_tx_bclk" }, 124 { .index = -1 }, 125 { .fw_name = "mlb_clk" }, 126 127 }; 128 129 static struct clk_imx8_acm_sel imx8qm_sels[] = { 130 { "acm_aud_clk0_sel", IMX_ADMA_ACM_AUD_CLK0_SEL, imx8qm_aud_clk_sels, ARRAY_SIZE(imx8qm_aud_clk_sels), 0x000000, 0, 5 }, 131 { "acm_aud_clk1_sel", IMX_ADMA_ACM_AUD_CLK1_SEL, imx8qm_aud_clk_sels, ARRAY_SIZE(imx8qm_aud_clk_sels), 0x010000, 0, 5 }, 132 { "acm_mclkout0_sel", IMX_ADMA_ACM_MCLKOUT0_SEL, imx8qm_mclk_out_sels, ARRAY_SIZE(imx8qm_mclk_out_sels), 0x020000, 0, 3 }, 133 { "acm_mclkout1_sel", IMX_ADMA_ACM_MCLKOUT1_SEL, imx8qm_mclk_out_sels, ARRAY_SIZE(imx8qm_mclk_out_sels), 0x030000, 0, 3 }, 134 { "acm_asrc0_mclk_sel", IMX_ADMA_ACM_ASRC0_MUX_CLK_SEL, imx8qm_asrc_mux_clk_sels, ARRAY_SIZE(imx8qm_asrc_mux_clk_sels), 0x040000, 0, 2 }, 135 { "acm_esai0_mclk_sel", IMX_ADMA_ACM_ESAI0_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x060000, 0, 2 }, 136 { "acm_esai1_mclk_sel", IMX_ADMA_ACM_ESAI1_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x070000, 0, 2 }, 137 { "acm_sai0_mclk_sel", IMX_ADMA_ACM_SAI0_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x0E0000, 0, 2 }, 138 { "acm_sai1_mclk_sel", IMX_ADMA_ACM_SAI1_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x0F0000, 0, 2 }, 139 { "acm_sai2_mclk_sel", IMX_ADMA_ACM_SAI2_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x100000, 0, 2 }, 140 { "acm_sai3_mclk_sel", IMX_ADMA_ACM_SAI3_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x110000, 0, 2 }, 141 { "acm_sai4_mclk_sel", IMX_ADMA_ACM_SAI4_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x120000, 0, 2 }, 142 { "acm_sai5_mclk_sel", IMX_ADMA_ACM_SAI5_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x130000, 0, 2 }, 143 { "acm_sai6_mclk_sel", IMX_ADMA_ACM_SAI6_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x140000, 0, 2 }, 144 { "acm_sai7_mclk_sel", IMX_ADMA_ACM_SAI7_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x150000, 0, 2 }, 145 { "acm_spdif0_mclk_sel", IMX_ADMA_ACM_SPDIF0_TX_CLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x1A0000, 0, 2 }, 146 { "acm_spdif1_mclk_sel", IMX_ADMA_ACM_SPDIF1_TX_CLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x1B0000, 0, 2 }, 147 { "acm_mqs_mclk_sel", IMX_ADMA_ACM_MQS_TX_CLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x1C0000, 0, 2 }, 148 }; 149 150 static const struct clk_parent_data imx8qxp_aud_clk_sels[] = { 151 { .fw_name = "aud_rec_clk0_lpcg_clk" }, 152 { .fw_name = "aud_rec_clk1_lpcg_clk" }, 153 { .fw_name = "ext_aud_mclk0" }, 154 { .fw_name = "ext_aud_mclk1" }, 155 { .fw_name = "esai0_rx_clk" }, 156 { .fw_name = "esai0_rx_hf_clk" }, 157 { .fw_name = "esai0_tx_clk" }, 158 { .fw_name = "esai0_tx_hf_clk" }, 159 { .fw_name = "spdif0_rx" }, 160 { .fw_name = "sai0_rx_bclk" }, 161 { .fw_name = "sai0_tx_bclk" }, 162 { .fw_name = "sai1_rx_bclk" }, 163 { .fw_name = "sai1_tx_bclk" }, 164 { .fw_name = "sai2_rx_bclk" }, 165 { .fw_name = "sai3_rx_bclk" }, 166 }; 167 168 static const struct clk_parent_data imx8qxp_mclk_out_sels[] = { 169 { .fw_name = "aud_rec_clk0_lpcg_clk" }, 170 { .fw_name = "aud_rec_clk1_lpcg_clk" }, 171 { .index = -1 }, 172 { .index = -1 }, 173 { .fw_name = "spdif0_rx" }, 174 { .index = -1 }, 175 { .index = -1 }, 176 { .fw_name = "sai4_rx_bclk" }, 177 }; 178 179 static const struct clk_parent_data imx8qxp_mclk_sels[] = { 180 { .fw_name = "aud_pll_div_clk0_lpcg_clk" }, 181 { .fw_name = "aud_pll_div_clk1_lpcg_clk" }, 182 { .fw_name = "acm_aud_clk0_sel" }, 183 { .fw_name = "acm_aud_clk1_sel" }, 184 }; 185 186 static struct clk_imx8_acm_sel imx8qxp_sels[] = { 187 { "acm_aud_clk0_sel", IMX_ADMA_ACM_AUD_CLK0_SEL, imx8qxp_aud_clk_sels, ARRAY_SIZE(imx8qxp_aud_clk_sels), 0x000000, 0, 5 }, 188 { "acm_aud_clk1_sel", IMX_ADMA_ACM_AUD_CLK1_SEL, imx8qxp_aud_clk_sels, ARRAY_SIZE(imx8qxp_aud_clk_sels), 0x010000, 0, 5 }, 189 { "acm_mclkout0_sel", IMX_ADMA_ACM_MCLKOUT0_SEL, imx8qxp_mclk_out_sels, ARRAY_SIZE(imx8qxp_mclk_out_sels), 0x020000, 0, 3 }, 190 { "acm_mclkout1_sel", IMX_ADMA_ACM_MCLKOUT1_SEL, imx8qxp_mclk_out_sels, ARRAY_SIZE(imx8qxp_mclk_out_sels), 0x030000, 0, 3 }, 191 { "acm_esai0_mclk_sel", IMX_ADMA_ACM_ESAI0_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x060000, 0, 2 }, 192 { "acm_sai0_mclk_sel", IMX_ADMA_ACM_SAI0_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x0E0000, 0, 2 }, 193 { "acm_sai1_mclk_sel", IMX_ADMA_ACM_SAI1_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x0F0000, 0, 2 }, 194 { "acm_sai2_mclk_sel", IMX_ADMA_ACM_SAI2_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x100000, 0, 2 }, 195 { "acm_sai3_mclk_sel", IMX_ADMA_ACM_SAI3_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x110000, 0, 2 }, 196 { "acm_sai4_mclk_sel", IMX_ADMA_ACM_SAI4_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x140000, 0, 2 }, 197 { "acm_sai5_mclk_sel", IMX_ADMA_ACM_SAI5_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x150000, 0, 2 }, 198 { "acm_spdif0_mclk_sel", IMX_ADMA_ACM_SPDIF0_TX_CLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x1A0000, 0, 2 }, 199 { "acm_mqs_mclk_sel", IMX_ADMA_ACM_MQS_TX_CLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x1C0000, 0, 2 }, 200 }; 201 202 static const struct clk_parent_data imx8dxl_aud_clk_sels[] = { 203 { .fw_name = "aud_rec_clk0_lpcg_clk" }, 204 { .fw_name = "aud_rec_clk1_lpcg_clk" }, 205 { .fw_name = "ext_aud_mclk0" }, 206 { .fw_name = "ext_aud_mclk1" }, 207 { .index = -1 }, 208 { .index = -1 }, 209 { .index = -1 }, 210 { .index = -1 }, 211 { .fw_name = "spdif0_rx" }, 212 { .fw_name = "sai0_rx_bclk" }, 213 { .fw_name = "sai0_tx_bclk" }, 214 { .fw_name = "sai1_rx_bclk" }, 215 { .fw_name = "sai1_tx_bclk" }, 216 { .fw_name = "sai2_rx_bclk" }, 217 { .fw_name = "sai3_rx_bclk" }, 218 }; 219 220 static const struct clk_parent_data imx8dxl_mclk_out_sels[] = { 221 { .fw_name = "aud_rec_clk0_lpcg_clk" }, 222 { .fw_name = "aud_rec_clk1_lpcg_clk" }, 223 { .index = -1 }, 224 { .index = -1 }, 225 { .fw_name = "spdif0_rx" }, 226 { .index = -1 }, 227 { .index = -1 }, 228 { .index = -1 }, 229 }; 230 231 static const struct clk_parent_data imx8dxl_mclk_sels[] = { 232 { .fw_name = "aud_pll_div_clk0_lpcg_clk" }, 233 { .fw_name = "aud_pll_div_clk1_lpcg_clk" }, 234 { .fw_name = "acm_aud_clk0_sel" }, 235 { .fw_name = "acm_aud_clk1_sel" }, 236 }; 237 238 static struct clk_imx8_acm_sel imx8dxl_sels[] = { 239 { "acm_aud_clk0_sel", IMX_ADMA_ACM_AUD_CLK0_SEL, imx8dxl_aud_clk_sels, ARRAY_SIZE(imx8dxl_aud_clk_sels), 0x000000, 0, 5 }, 240 { "acm_aud_clk1_sel", IMX_ADMA_ACM_AUD_CLK1_SEL, imx8dxl_aud_clk_sels, ARRAY_SIZE(imx8dxl_aud_clk_sels), 0x010000, 0, 5 }, 241 { "acm_mclkout0_sel", IMX_ADMA_ACM_MCLKOUT0_SEL, imx8dxl_mclk_out_sels, ARRAY_SIZE(imx8dxl_mclk_out_sels), 0x020000, 0, 3 }, 242 { "acm_mclkout1_sel", IMX_ADMA_ACM_MCLKOUT1_SEL, imx8dxl_mclk_out_sels, ARRAY_SIZE(imx8dxl_mclk_out_sels), 0x030000, 0, 3 }, 243 { "acm_sai0_mclk_sel", IMX_ADMA_ACM_SAI0_MCLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x0E0000, 0, 2 }, 244 { "acm_sai1_mclk_sel", IMX_ADMA_ACM_SAI1_MCLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x0F0000, 0, 2 }, 245 { "acm_sai2_mclk_sel", IMX_ADMA_ACM_SAI2_MCLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x100000, 0, 2 }, 246 { "acm_sai3_mclk_sel", IMX_ADMA_ACM_SAI3_MCLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x110000, 0, 2 }, 247 { "acm_spdif0_mclk_sel", IMX_ADMA_ACM_SPDIF0_TX_CLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x1A0000, 0, 2 }, 248 { "acm_mqs_mclk_sel", IMX_ADMA_ACM_MQS_TX_CLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x1C0000, 0, 2 }, 249 }; 250 251 /** 252 * clk_imx_acm_attach_pm_domains: attach multi power domains 253 * @dev: device pointer 254 * @dev_pm: power domains for device 255 */ 256 static int clk_imx_acm_attach_pm_domains(struct device *dev, 257 struct clk_imx_acm_pm_domains *dev_pm) 258 { 259 int ret; 260 int i; 261 262 dev_pm->num_domains = of_count_phandle_with_args(dev->of_node, "power-domains", 263 "#power-domain-cells"); 264 if (dev_pm->num_domains <= 1) 265 return 0; 266 267 dev_pm->pd_dev = devm_kmalloc_array(dev, dev_pm->num_domains, 268 sizeof(*dev_pm->pd_dev), 269 GFP_KERNEL); 270 if (!dev_pm->pd_dev) 271 return -ENOMEM; 272 273 dev_pm->pd_dev_link = devm_kmalloc_array(dev, 274 dev_pm->num_domains, 275 sizeof(*dev_pm->pd_dev_link), 276 GFP_KERNEL); 277 if (!dev_pm->pd_dev_link) 278 return -ENOMEM; 279 280 for (i = 0; i < dev_pm->num_domains; i++) { 281 dev_pm->pd_dev[i] = dev_pm_domain_attach_by_id(dev, i); 282 if (IS_ERR(dev_pm->pd_dev[i])) 283 return PTR_ERR(dev_pm->pd_dev[i]); 284 285 dev_pm->pd_dev_link[i] = device_link_add(dev, 286 dev_pm->pd_dev[i], 287 DL_FLAG_STATELESS | 288 DL_FLAG_PM_RUNTIME | 289 DL_FLAG_RPM_ACTIVE); 290 if (IS_ERR(dev_pm->pd_dev_link[i])) { 291 dev_pm_domain_detach(dev_pm->pd_dev[i], false); 292 ret = PTR_ERR(dev_pm->pd_dev_link[i]); 293 goto detach_pm; 294 } 295 } 296 return 0; 297 298 detach_pm: 299 while (--i >= 0) { 300 device_link_del(dev_pm->pd_dev_link[i]); 301 dev_pm_domain_detach(dev_pm->pd_dev[i], false); 302 } 303 return ret; 304 } 305 306 /** 307 * clk_imx_acm_detach_pm_domains: detach multi power domains 308 * @dev: deivice pointer 309 * @dev_pm: multi power domain for device 310 */ 311 static int clk_imx_acm_detach_pm_domains(struct device *dev, 312 struct clk_imx_acm_pm_domains *dev_pm) 313 { 314 int i; 315 316 if (dev_pm->num_domains <= 1) 317 return 0; 318 319 for (i = 0; i < dev_pm->num_domains; i++) { 320 device_link_del(dev_pm->pd_dev_link[i]); 321 dev_pm_domain_detach(dev_pm->pd_dev[i], false); 322 } 323 324 return 0; 325 } 326 327 static int imx8_acm_clk_probe(struct platform_device *pdev) 328 { 329 struct clk_hw_onecell_data *clk_hw_data; 330 struct device *dev = &pdev->dev; 331 struct clk_imx8_acm_sel *sels; 332 struct imx8_acm_priv *priv; 333 struct clk_hw **hws; 334 void __iomem *base; 335 int ret; 336 int i; 337 338 base = devm_of_iomap(dev, dev->of_node, 0, NULL); 339 if (WARN_ON(IS_ERR(base))) 340 return PTR_ERR(base); 341 342 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); 343 if (!priv) 344 return -ENOMEM; 345 346 priv->reg = base; 347 priv->soc_data = of_device_get_match_data(dev); 348 platform_set_drvdata(pdev, priv); 349 350 clk_hw_data = devm_kzalloc(&pdev->dev, struct_size(clk_hw_data, hws, IMX_ADMA_ACM_CLK_END), 351 GFP_KERNEL); 352 if (!clk_hw_data) 353 return -ENOMEM; 354 355 clk_hw_data->num = IMX_ADMA_ACM_CLK_END; 356 hws = clk_hw_data->hws; 357 358 ret = clk_imx_acm_attach_pm_domains(&pdev->dev, &priv->dev_pm); 359 if (ret) 360 return ret; 361 362 pm_runtime_enable(&pdev->dev); 363 pm_runtime_get_sync(&pdev->dev); 364 365 sels = priv->soc_data->sels; 366 for (i = 0; i < priv->soc_data->num_sels; i++) { 367 hws[sels[i].clkid] = devm_clk_hw_register_mux_parent_data_table(dev, 368 sels[i].name, sels[i].parents, 369 sels[i].num_parents, 0, 370 base + sels[i].reg, 371 sels[i].shift, sels[i].width, 372 0, NULL, NULL); 373 if (IS_ERR(hws[sels[i].clkid])) { 374 pm_runtime_disable(&pdev->dev); 375 goto err_clk_register; 376 } 377 } 378 379 imx_check_clk_hws(hws, IMX_ADMA_ACM_CLK_END); 380 381 ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_hw_data); 382 if (ret < 0) { 383 dev_err(dev, "failed to register hws for ACM\n"); 384 pm_runtime_disable(&pdev->dev); 385 } 386 387 err_clk_register: 388 389 pm_runtime_put_sync(&pdev->dev); 390 391 return ret; 392 } 393 394 static int imx8_acm_clk_remove(struct platform_device *pdev) 395 { 396 struct imx8_acm_priv *priv = dev_get_drvdata(&pdev->dev); 397 398 pm_runtime_disable(&pdev->dev); 399 400 clk_imx_acm_detach_pm_domains(&pdev->dev, &priv->dev_pm); 401 402 return 0; 403 } 404 405 static const struct imx8_acm_soc_data imx8qm_acm_data = { 406 .sels = imx8qm_sels, 407 .num_sels = ARRAY_SIZE(imx8qm_sels), 408 }; 409 410 static const struct imx8_acm_soc_data imx8qxp_acm_data = { 411 .sels = imx8qxp_sels, 412 .num_sels = ARRAY_SIZE(imx8qxp_sels), 413 }; 414 415 static const struct imx8_acm_soc_data imx8dxl_acm_data = { 416 .sels = imx8dxl_sels, 417 .num_sels = ARRAY_SIZE(imx8dxl_sels), 418 }; 419 420 static const struct of_device_id imx8_acm_match[] = { 421 { .compatible = "fsl,imx8qm-acm", .data = &imx8qm_acm_data }, 422 { .compatible = "fsl,imx8qxp-acm", .data = &imx8qxp_acm_data }, 423 { .compatible = "fsl,imx8dxl-acm", .data = &imx8dxl_acm_data }, 424 { /* sentinel */ } 425 }; 426 MODULE_DEVICE_TABLE(of, imx8_acm_match); 427 428 static int __maybe_unused imx8_acm_runtime_suspend(struct device *dev) 429 { 430 struct imx8_acm_priv *priv = dev_get_drvdata(dev); 431 struct clk_imx8_acm_sel *sels; 432 int i; 433 434 sels = priv->soc_data->sels; 435 436 for (i = 0; i < priv->soc_data->num_sels; i++) 437 priv->regs[i] = readl_relaxed(priv->reg + sels[i].reg); 438 439 return 0; 440 } 441 442 static int __maybe_unused imx8_acm_runtime_resume(struct device *dev) 443 { 444 struct imx8_acm_priv *priv = dev_get_drvdata(dev); 445 struct clk_imx8_acm_sel *sels; 446 int i; 447 448 sels = priv->soc_data->sels; 449 450 for (i = 0; i < priv->soc_data->num_sels; i++) 451 writel_relaxed(priv->regs[i], priv->reg + sels[i].reg); 452 453 return 0; 454 } 455 456 static const struct dev_pm_ops imx8_acm_pm_ops = { 457 SET_RUNTIME_PM_OPS(imx8_acm_runtime_suspend, 458 imx8_acm_runtime_resume, NULL) 459 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 460 pm_runtime_force_resume) 461 }; 462 463 static struct platform_driver imx8_acm_clk_driver = { 464 .driver = { 465 .name = "imx8-acm", 466 .of_match_table = imx8_acm_match, 467 .pm = &imx8_acm_pm_ops, 468 }, 469 .probe = imx8_acm_clk_probe, 470 .remove = imx8_acm_clk_remove, 471 }; 472 module_platform_driver(imx8_acm_clk_driver); 473 474 MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>"); 475 MODULE_DESCRIPTION("Freescale i.MX8 Audio Clock Mux driver"); 476 MODULE_LICENSE("GPL"); 477