Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/err.h> |
| 16 | #include <linux/module.h> |
| 17 | #include <linux/of.h> |
| 18 | #include <linux/clk.h> |
| 19 | #include <linux/clk-provider.h> |
| 20 | #include "../../../drivers/clk/qcom/common.h" |
| 21 | #include <linux/platform_device.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 22 | #include <dt-bindings/clock/qcom,audio-ext-clk.h> |
Laxminath Kasam | 605b42f | 2017-08-01 22:02:15 +0530 | [diff] [blame] | 23 | #include <dsp/q6afe-v2.h> |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame^] | 24 | #include <dsp/q6core.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 25 | #include "audio-ext-clk-up.h" |
| 26 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 27 | enum { |
| 28 | AUDIO_EXT_CLK_PMI, |
| 29 | AUDIO_EXT_CLK_LNBB2, |
| 30 | AUDIO_EXT_CLK_LPASS, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 31 | AUDIO_EXT_CLK_LPASS2, |
| 32 | AUDIO_EXT_CLK_LPASS3, |
Aditya Bavanari | 7259ca6 | 2018-07-30 12:03:03 +0530 | [diff] [blame] | 33 | AUDIO_EXT_CLK_LPASS4, |
| 34 | AUDIO_EXT_CLK_LPASS5, |
| 35 | AUDIO_EXT_CLK_LPASS6, |
| 36 | AUDIO_EXT_CLK_LPASS7, |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame^] | 37 | AUDIO_EXT_CLK_LPASS_NPA_RSC_ISLAND, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 38 | AUDIO_EXT_CLK_LPASS_MAX, |
| 39 | AUDIO_EXT_CLK_MAX = AUDIO_EXT_CLK_LPASS_MAX, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 40 | }; |
| 41 | |
| 42 | struct pinctrl_info { |
| 43 | struct pinctrl *pinctrl; |
| 44 | struct pinctrl_state *sleep; |
| 45 | struct pinctrl_state *active; |
| 46 | char __iomem *base; |
| 47 | }; |
| 48 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 49 | struct audio_ext_clk { |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 50 | struct pinctrl_info pnctrl_info; |
| 51 | struct clk_fixed_factor fact; |
| 52 | }; |
| 53 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 54 | struct audio_ext_clk_priv { |
| 55 | struct device *dev; |
| 56 | int clk_src; |
| 57 | struct afe_clk_set clk_cfg; |
| 58 | struct audio_ext_clk audio_clk; |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 59 | const char *clk_name; |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame^] | 60 | uint32_t npa_rsc_client_handle; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 61 | }; |
| 62 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 63 | static inline struct audio_ext_clk_priv *to_audio_clk(struct clk_hw *hw) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 64 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 65 | return container_of(hw, struct audio_ext_clk_priv, audio_clk.fact.hw); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 66 | } |
| 67 | |
| 68 | static int audio_ext_clk_prepare(struct clk_hw *hw) |
| 69 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 70 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 71 | struct pinctrl_info *pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 72 | int ret; |
| 73 | |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 74 | if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS) && |
| 75 | (clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 76 | clk_priv->clk_cfg.enable = 1; |
| 77 | ret = afe_set_lpass_clk_cfg(IDX_RSVD_3, &clk_priv->clk_cfg); |
| 78 | if (ret < 0) { |
| 79 | pr_err("%s afe_set_digital_codec_core_clock failed\n", |
| 80 | __func__); |
| 81 | return ret; |
| 82 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 83 | } |
| 84 | |
| 85 | if (pnctrl_info->pinctrl) { |
| 86 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 87 | pnctrl_info->active); |
| 88 | if (ret) { |
| 89 | pr_err("%s: active state select failed with %d\n", |
| 90 | __func__, ret); |
| 91 | return -EIO; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | if (pnctrl_info->base) |
| 96 | iowrite32(1, pnctrl_info->base); |
| 97 | return 0; |
| 98 | } |
| 99 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 100 | static void audio_ext_clk_unprepare(struct clk_hw *hw) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 101 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 102 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 103 | struct pinctrl_info *pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 104 | int ret; |
| 105 | |
| 106 | if (pnctrl_info->pinctrl) { |
| 107 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 108 | pnctrl_info->sleep); |
| 109 | if (ret) { |
| 110 | pr_err("%s: active state select failed with %d\n", |
| 111 | __func__, ret); |
| 112 | return; |
| 113 | } |
| 114 | } |
| 115 | |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 116 | if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS) && |
| 117 | (clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 118 | clk_priv->clk_cfg.enable = 0; |
| 119 | ret = afe_set_lpass_clk_cfg(IDX_RSVD_3, &clk_priv->clk_cfg); |
| 120 | if (ret < 0) |
| 121 | pr_err("%s: afe_set_lpass_clk_cfg failed, ret = %d\n", |
| 122 | __func__, ret); |
| 123 | } |
| 124 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 125 | if (pnctrl_info->base) |
| 126 | iowrite32(0, pnctrl_info->base); |
| 127 | } |
| 128 | |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 129 | static u8 audio_ext_clk_get_parent(struct clk_hw *hw) |
| 130 | { |
| 131 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 132 | int num_parents = clk_hw_get_num_parents(hw); |
| 133 | const char * const *parent_names = hw->init->parent_names; |
| 134 | u8 i = 0, ret = hw->init->num_parents + 1; |
| 135 | |
| 136 | if ((clk_priv->clk_src == AUDIO_EXT_CLK_PMI) && clk_priv->clk_name) { |
| 137 | for (i = 0; i < num_parents; i++) { |
| 138 | if (!strcmp(parent_names[i], clk_priv->clk_name)) |
| 139 | ret = i; |
| 140 | } |
| 141 | pr_debug("%s: parent index = %u\n", __func__, ret); |
| 142 | return ret; |
| 143 | } else |
| 144 | return 0; |
| 145 | } |
| 146 | |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame^] | 147 | static int lpass_npa_rsc_prepare(struct clk_hw *hw) |
| 148 | { |
| 149 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 150 | int ret; |
| 151 | |
| 152 | if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS_NPA_RSC_ISLAND) && |
| 153 | (clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX)) { |
| 154 | if (q6core_get_avcs_api_version_per_service( |
| 155 | APRV2_IDS_SERVICE_ID_ADSP_CORE_V) >= AVCS_API_VERSION_V4) { |
| 156 | ret = q6core_request_island_transition( |
| 157 | clk_priv->npa_rsc_client_handle, false); |
| 158 | if (ret < 0) { |
| 159 | pr_err("%s q6core_request_island_transition failed %d\n", |
| 160 | __func__, ret); |
| 161 | return ret; |
| 162 | } |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | static void lpass_npa_rsc_unprepare(struct clk_hw *hw) |
| 170 | { |
| 171 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 172 | int ret = 0; |
| 173 | |
| 174 | if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS_NPA_RSC_ISLAND) && |
| 175 | (clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX)) { |
| 176 | if (q6core_get_avcs_api_version_per_service( |
| 177 | APRV2_IDS_SERVICE_ID_ADSP_CORE_V) >= AVCS_API_VERSION_V4) { |
| 178 | ret = q6core_request_island_transition( |
| 179 | clk_priv->npa_rsc_client_handle, true); |
| 180 | if (ret < 0) { |
| 181 | pr_err("%s q6core_request_island_transition failed %d\n", |
| 182 | __func__, ret); |
| 183 | } |
| 184 | } |
| 185 | } |
| 186 | } |
| 187 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 188 | static const struct clk_ops audio_ext_clk_ops = { |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 189 | .prepare = audio_ext_clk_prepare, |
| 190 | .unprepare = audio_ext_clk_unprepare, |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 191 | .get_parent = audio_ext_clk_get_parent, |
| 192 | }; |
| 193 | |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame^] | 194 | static const struct clk_ops lpass_npa_rsc_ops = { |
| 195 | .prepare = lpass_npa_rsc_prepare, |
| 196 | .unprepare = lpass_npa_rsc_unprepare, |
| 197 | }; |
| 198 | |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 199 | static const char * const audio_ext_pmi_div_clk[] = { |
| 200 | "qpnp_clkdiv_1", |
| 201 | "pms405_div_clk1", |
| 202 | "pm6150_div_clk1", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 203 | }; |
| 204 | |
Sudheer Papothi | 9b51e3e | 2018-07-21 05:20:10 +0530 | [diff] [blame] | 205 | static int audio_ext_clk_dummy_prepare(struct clk_hw *hw) |
| 206 | { |
| 207 | return 0; |
| 208 | } |
| 209 | |
| 210 | static void audio_ext_clk_dummy_unprepare(struct clk_hw *hw) |
| 211 | { |
| 212 | |
| 213 | } |
| 214 | |
| 215 | static const struct clk_ops audio_ext_clk_dummy_ops = { |
| 216 | .prepare = audio_ext_clk_dummy_prepare, |
| 217 | .unprepare = audio_ext_clk_dummy_unprepare, |
| 218 | }; |
| 219 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 220 | static struct audio_ext_clk audio_clk_array[] = { |
| 221 | { |
| 222 | .pnctrl_info = {NULL}, |
| 223 | .fact = { |
| 224 | .mult = 1, |
| 225 | .div = 1, |
| 226 | .hw.init = &(struct clk_init_data){ |
| 227 | .name = "audio_ext_pmi_clk", |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 228 | .parent_names = audio_ext_pmi_div_clk, |
| 229 | .num_parents = |
| 230 | ARRAY_SIZE(audio_ext_pmi_div_clk), |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 231 | .ops = &audio_ext_clk_ops, |
| 232 | }, |
| 233 | }, |
| 234 | }, |
| 235 | { |
| 236 | .pnctrl_info = {NULL}, |
| 237 | .fact = { |
| 238 | .mult = 1, |
| 239 | .div = 1, |
| 240 | .hw.init = &(struct clk_init_data){ |
| 241 | .name = "audio_ext_pmi_lnbb_clk", |
| 242 | .parent_names = (const char *[]) |
| 243 | { "ln_bb_clk2" }, |
| 244 | .num_parents = 1, |
Sudheer Papothi | 9b51e3e | 2018-07-21 05:20:10 +0530 | [diff] [blame] | 245 | .ops = &audio_ext_clk_dummy_ops, |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 246 | }, |
| 247 | }, |
| 248 | }, |
| 249 | { |
| 250 | .pnctrl_info = {NULL}, |
| 251 | .fact = { |
| 252 | .mult = 1, |
| 253 | .div = 1, |
| 254 | .hw.init = &(struct clk_init_data){ |
| 255 | .name = "audio_lpass_mclk", |
| 256 | .ops = &audio_ext_clk_ops, |
| 257 | }, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 258 | }, |
| 259 | }, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 260 | { |
| 261 | .pnctrl_info = {NULL}, |
| 262 | .fact = { |
| 263 | .mult = 1, |
| 264 | .div = 1, |
| 265 | .hw.init = &(struct clk_init_data){ |
| 266 | .name = "audio_lpass_mclk2", |
| 267 | .ops = &audio_ext_clk_ops, |
| 268 | }, |
| 269 | }, |
| 270 | }, |
| 271 | { |
| 272 | .pnctrl_info = {NULL}, |
| 273 | .fact = { |
| 274 | .mult = 1, |
| 275 | .div = 1, |
| 276 | .hw.init = &(struct clk_init_data){ |
| 277 | .name = "audio_lpass_mclk3", |
| 278 | .ops = &audio_ext_clk_ops, |
| 279 | }, |
| 280 | }, |
| 281 | }, |
Aditya Bavanari | 7259ca6 | 2018-07-30 12:03:03 +0530 | [diff] [blame] | 282 | { |
| 283 | .pnctrl_info = {NULL}, |
| 284 | .fact = { |
| 285 | .mult = 1, |
| 286 | .div = 1, |
| 287 | .hw.init = &(struct clk_init_data){ |
| 288 | .name = "audio_lpass_mclk4", |
| 289 | .ops = &audio_ext_clk_ops, |
| 290 | }, |
| 291 | }, |
| 292 | }, |
| 293 | { |
| 294 | .pnctrl_info = {NULL}, |
| 295 | .fact = { |
| 296 | .mult = 1, |
| 297 | .div = 1, |
| 298 | .hw.init = &(struct clk_init_data){ |
| 299 | .name = "audio_lpass_mclk5", |
| 300 | .ops = &audio_ext_clk_ops, |
| 301 | }, |
| 302 | }, |
| 303 | }, |
| 304 | { |
| 305 | .pnctrl_info = {NULL}, |
| 306 | .fact = { |
| 307 | .mult = 1, |
| 308 | .div = 1, |
| 309 | .hw.init = &(struct clk_init_data){ |
| 310 | .name = "audio_lpass_mclk6", |
| 311 | .ops = &audio_ext_clk_ops, |
| 312 | }, |
| 313 | }, |
| 314 | }, |
| 315 | { |
| 316 | .pnctrl_info = {NULL}, |
| 317 | .fact = { |
| 318 | .mult = 1, |
| 319 | .div = 1, |
| 320 | .hw.init = &(struct clk_init_data){ |
| 321 | .name = "audio_lpass_mclk7", |
| 322 | .ops = &audio_ext_clk_ops, |
| 323 | }, |
| 324 | }, |
| 325 | }, |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame^] | 326 | { |
| 327 | .pnctrl_info = {NULL}, |
| 328 | .fact = { |
| 329 | .hw.init = &(struct clk_init_data){ |
| 330 | .name = "lpass_npa_rsc_island_clk", |
| 331 | .ops = &lpass_npa_rsc_ops, |
| 332 | }, |
| 333 | }, |
| 334 | }, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 335 | }; |
| 336 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 337 | static int audio_get_pinctrl(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 338 | { |
| 339 | struct device *dev = &pdev->dev; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 340 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 341 | struct pinctrl_info *pnctrl_info; |
| 342 | struct pinctrl *pinctrl; |
| 343 | int ret; |
| 344 | u32 reg; |
| 345 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 346 | pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 347 | if (pnctrl_info->pinctrl) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 348 | dev_err(dev, "%s: already requested before\n", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 349 | __func__); |
| 350 | return -EINVAL; |
| 351 | } |
| 352 | |
| 353 | pinctrl = devm_pinctrl_get(dev); |
| 354 | if (IS_ERR_OR_NULL(pinctrl)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 355 | dev_err(dev, "%s: Unable to get pinctrl handle\n", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 356 | __func__); |
| 357 | return -EINVAL; |
| 358 | } |
| 359 | pnctrl_info->pinctrl = pinctrl; |
| 360 | /* get all state handles from Device Tree */ |
| 361 | pnctrl_info->sleep = pinctrl_lookup_state(pinctrl, "sleep"); |
| 362 | if (IS_ERR(pnctrl_info->sleep)) { |
| 363 | dev_err(dev, "%s: could not get sleep pinstate\n", |
| 364 | __func__); |
| 365 | goto err; |
| 366 | } |
| 367 | pnctrl_info->active = pinctrl_lookup_state(pinctrl, "active"); |
| 368 | if (IS_ERR(pnctrl_info->active)) { |
| 369 | dev_err(dev, "%s: could not get active pinstate\n", |
| 370 | __func__); |
| 371 | goto err; |
| 372 | } |
| 373 | /* Reset the TLMM pins to a default state */ |
| 374 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 375 | pnctrl_info->sleep); |
| 376 | if (ret) { |
| 377 | dev_err(dev, "%s: Disable TLMM pins failed with %d\n", |
| 378 | __func__, ret); |
| 379 | goto err; |
| 380 | } |
| 381 | |
| 382 | ret = of_property_read_u32(dev->of_node, "qcom,mclk-clk-reg", ®); |
| 383 | if (ret < 0) { |
| 384 | dev_dbg(dev, "%s: miss mclk reg\n", __func__); |
| 385 | } else { |
| 386 | pnctrl_info->base = ioremap(reg, sizeof(u32)); |
| 387 | if (pnctrl_info->base == NULL) { |
| 388 | dev_err(dev, "%s ioremap failed\n", __func__); |
| 389 | goto err; |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | return 0; |
| 394 | |
| 395 | err: |
| 396 | devm_pinctrl_put(pnctrl_info->pinctrl); |
| 397 | return -EINVAL; |
| 398 | } |
| 399 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 400 | static int audio_put_pinctrl(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 401 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 402 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
| 403 | struct pinctrl_info *pnctrl_info = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 404 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 405 | pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
| 406 | if (pnctrl_info && pnctrl_info->pinctrl) { |
| 407 | devm_pinctrl_put(pnctrl_info->pinctrl); |
| 408 | pnctrl_info->pinctrl = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 409 | } |
| 410 | |
| 411 | return 0; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 412 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 413 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 414 | static int audio_get_clk_data(struct platform_device *pdev) |
| 415 | { |
| 416 | int ret; |
| 417 | struct clk *audio_clk; |
| 418 | struct clk_hw *clkhw; |
| 419 | struct clk_onecell_data *clk_data; |
| 420 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 421 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 422 | clk_data = devm_kzalloc(&pdev->dev, sizeof(*clk_data), GFP_KERNEL); |
| 423 | if (!clk_data) |
| 424 | return -ENOMEM; |
| 425 | |
| 426 | clk_data->clk_num = 1; |
| 427 | clk_data->clks = devm_kzalloc(&pdev->dev, |
| 428 | sizeof(struct clk *), |
| 429 | GFP_KERNEL); |
| 430 | if (!clk_data->clks) |
| 431 | return -ENOMEM; |
| 432 | |
| 433 | clkhw = &clk_priv->audio_clk.fact.hw; |
| 434 | audio_clk = devm_clk_register(&pdev->dev, clkhw); |
| 435 | if (IS_ERR(audio_clk)) { |
| 436 | dev_err(&pdev->dev, |
| 437 | "%s: clock register failed for clk_src = %d\\n", |
| 438 | __func__, clk_priv->clk_src); |
| 439 | ret = PTR_ERR(audio_clk); |
| 440 | return ret; |
| 441 | } |
| 442 | clk_data->clks[0] = audio_clk; |
| 443 | |
| 444 | ret = of_clk_add_provider(pdev->dev.of_node, |
| 445 | of_clk_src_onecell_get, clk_data); |
| 446 | if (ret) |
| 447 | dev_err(&pdev->dev, "%s: clock add failed for clk_src = %d\n", |
| 448 | __func__, clk_priv->clk_src); |
| 449 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 450 | return ret; |
| 451 | } |
| 452 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 453 | static int audio_ref_clk_probe(struct platform_device *pdev) |
| 454 | { |
| 455 | int ret; |
| 456 | struct audio_ext_clk_priv *clk_priv; |
Laxminath Kasam | 43c1a13 | 2018-06-15 13:18:07 +0530 | [diff] [blame] | 457 | u32 clk_freq = 0, clk_id = 0, clk_src = 0, use_pinctrl = 0; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 458 | |
| 459 | clk_priv = devm_kzalloc(&pdev->dev, sizeof(*clk_priv), GFP_KERNEL); |
| 460 | if (!clk_priv) |
| 461 | return -ENOMEM; |
| 462 | |
| 463 | ret = of_property_read_u32(pdev->dev.of_node, |
| 464 | "qcom,codec-ext-clk-src", |
| 465 | &clk_src); |
| 466 | if (ret) { |
| 467 | dev_err(&pdev->dev, "%s: could not get clk source, ret = %d\n", |
| 468 | __func__, ret); |
| 469 | return ret; |
| 470 | } |
| 471 | |
| 472 | if (clk_src >= AUDIO_EXT_CLK_MAX) { |
| 473 | dev_err(&pdev->dev, "%s: Invalid clk source = %d\n", |
| 474 | __func__, clk_src); |
| 475 | return -EINVAL; |
| 476 | } |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 477 | clk_priv->clk_name = NULL; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 478 | clk_priv->clk_src = clk_src; |
| 479 | memcpy(&clk_priv->audio_clk, &audio_clk_array[clk_src], |
| 480 | sizeof(struct audio_ext_clk)); |
| 481 | |
| 482 | /* Init lpass clk default values */ |
| 483 | clk_priv->clk_cfg.clk_set_minor_version = |
| 484 | Q6AFE_LPASS_CLK_CONFIG_API_VERSION; |
| 485 | clk_priv->clk_cfg.clk_id = Q6AFE_LPASS_CLK_ID_SPEAKER_I2S_OSR; |
| 486 | clk_priv->clk_cfg.clk_freq_in_hz = Q6AFE_LPASS_OSR_CLK_9_P600_MHZ; |
| 487 | clk_priv->clk_cfg.clk_attri = Q6AFE_LPASS_CLK_ATTRIBUTE_COUPLE_NO; |
| 488 | |
| 489 | ret = of_property_read_u32(pdev->dev.of_node, |
| 490 | "qcom,codec-lpass-ext-clk-freq", |
| 491 | &clk_freq); |
| 492 | if (!ret) |
| 493 | clk_priv->clk_cfg.clk_freq_in_hz = clk_freq; |
| 494 | |
| 495 | ret = of_property_read_u32(pdev->dev.of_node, |
| 496 | "qcom,codec-lpass-clk-id", |
| 497 | &clk_id); |
| 498 | if (!ret) |
| 499 | clk_priv->clk_cfg.clk_id = clk_id; |
| 500 | |
| 501 | dev_dbg(&pdev->dev, "%s: ext-clk freq: %d, lpass clk_id: %d, clk_src: %d\n", |
| 502 | __func__, clk_priv->clk_cfg.clk_freq_in_hz, |
| 503 | clk_priv->clk_cfg.clk_id, clk_priv->clk_src); |
| 504 | platform_set_drvdata(pdev, clk_priv); |
| 505 | |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 506 | ret = of_property_read_string(pdev->dev.of_node, "pmic-clock-names", |
| 507 | &clk_priv->clk_name); |
| 508 | if (ret) |
| 509 | dev_dbg(&pdev->dev, "%s: could not find pmic clock names\n", |
| 510 | __func__); |
Laxminath Kasam | 43c1a13 | 2018-06-15 13:18:07 +0530 | [diff] [blame] | 511 | /* |
| 512 | * property qcom,use-pinctrl to be defined in DTSI to val 1 |
| 513 | * for clock nodes using pinctrl |
| 514 | */ |
| 515 | of_property_read_u32(pdev->dev.of_node, "qcom,use-pinctrl", |
| 516 | &use_pinctrl); |
| 517 | dev_dbg(&pdev->dev, "%s: use-pinctrl : %d\n", |
| 518 | __func__, use_pinctrl); |
| 519 | |
| 520 | if (use_pinctrl) { |
| 521 | ret = audio_get_pinctrl(pdev); |
| 522 | if (ret) { |
| 523 | dev_err(&pdev->dev, "%s: Parsing PMI pinctrl failed\n", |
| 524 | __func__); |
| 525 | return ret; |
| 526 | } |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 527 | } |
| 528 | |
| 529 | ret = audio_get_clk_data(pdev); |
| 530 | if (ret) { |
| 531 | dev_err(&pdev->dev, "%s: clk_init is failed\n", |
| 532 | __func__); |
| 533 | audio_put_pinctrl(pdev); |
| 534 | return ret; |
| 535 | } |
| 536 | |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame^] | 537 | if (clk_priv->clk_src == AUDIO_EXT_CLK_LPASS_NPA_RSC_ISLAND) { |
| 538 | if (q6core_get_avcs_api_version_per_service( |
| 539 | APRV2_IDS_SERVICE_ID_ADSP_CORE_V) >= AVCS_API_VERSION_V4) { |
| 540 | ret = q6core_create_lpass_npa_client( |
| 541 | AVCS_SLEEP_NODE_ISLAND_TRANSITION_RESOURCE_ID, |
| 542 | "lpass_npa_rsc_mgr", |
| 543 | &clk_priv->npa_rsc_client_handle); |
| 544 | if (ret) { |
| 545 | dev_err(&pdev->dev, "%s: q6core_create_lpass_npa_client is failed %d\n", |
| 546 | __func__, ret); |
| 547 | audio_put_pinctrl(pdev); |
| 548 | return ret; |
| 549 | } |
| 550 | } |
| 551 | } |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 552 | return 0; |
| 553 | } |
| 554 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 555 | static int audio_ref_clk_remove(struct platform_device *pdev) |
| 556 | { |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame^] | 557 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
| 558 | |
| 559 | if (clk_priv->clk_src == AUDIO_EXT_CLK_LPASS_NPA_RSC_ISLAND) { |
| 560 | if (q6core_get_avcs_api_version_per_service( |
| 561 | APRV2_IDS_SERVICE_ID_ADSP_CORE_V) >= AVCS_API_VERSION_V4) |
| 562 | q6core_destroy_lpass_npa_client( |
| 563 | clk_priv->npa_rsc_client_handle); |
| 564 | } |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 565 | audio_put_pinctrl(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 566 | |
| 567 | return 0; |
| 568 | } |
| 569 | |
| 570 | static const struct of_device_id audio_ref_clk_match[] = { |
| 571 | {.compatible = "qcom,audio-ref-clk"}, |
| 572 | {} |
| 573 | }; |
| 574 | MODULE_DEVICE_TABLE(of, audio_ref_clk_match); |
| 575 | |
| 576 | static struct platform_driver audio_ref_clk_driver = { |
| 577 | .driver = { |
| 578 | .name = "audio-ref-clk", |
| 579 | .owner = THIS_MODULE, |
| 580 | .of_match_table = audio_ref_clk_match, |
| 581 | }, |
| 582 | .probe = audio_ref_clk_probe, |
| 583 | .remove = audio_ref_clk_remove, |
| 584 | }; |
| 585 | |
| 586 | int audio_ref_clk_platform_init(void) |
| 587 | { |
| 588 | return platform_driver_register(&audio_ref_clk_driver); |
| 589 | } |
| 590 | |
| 591 | void audio_ref_clk_platform_exit(void) |
| 592 | { |
| 593 | platform_driver_unregister(&audio_ref_clk_driver); |
| 594 | } |
| 595 | |
| 596 | MODULE_DESCRIPTION("Audio Ref Up Clock module platform driver"); |
| 597 | MODULE_LICENSE("GPL v2"); |