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> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 24 | #include "audio-ext-clk-up.h" |
| 25 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 26 | enum { |
| 27 | AUDIO_EXT_CLK_PMI, |
| 28 | AUDIO_EXT_CLK_LNBB2, |
| 29 | AUDIO_EXT_CLK_LPASS, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 30 | AUDIO_EXT_CLK_LPASS2, |
| 31 | AUDIO_EXT_CLK_LPASS3, |
Aditya Bavanari | 7259ca6 | 2018-07-30 12:03:03 +0530 | [diff] [blame^] | 32 | AUDIO_EXT_CLK_LPASS4, |
| 33 | AUDIO_EXT_CLK_LPASS5, |
| 34 | AUDIO_EXT_CLK_LPASS6, |
| 35 | AUDIO_EXT_CLK_LPASS7, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 36 | AUDIO_EXT_CLK_LPASS_MAX, |
| 37 | AUDIO_EXT_CLK_MAX = AUDIO_EXT_CLK_LPASS_MAX, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 38 | }; |
| 39 | |
| 40 | struct pinctrl_info { |
| 41 | struct pinctrl *pinctrl; |
| 42 | struct pinctrl_state *sleep; |
| 43 | struct pinctrl_state *active; |
| 44 | char __iomem *base; |
| 45 | }; |
| 46 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 47 | struct audio_ext_clk { |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 48 | struct pinctrl_info pnctrl_info; |
| 49 | struct clk_fixed_factor fact; |
| 50 | }; |
| 51 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 52 | struct audio_ext_clk_priv { |
| 53 | struct device *dev; |
| 54 | int clk_src; |
| 55 | struct afe_clk_set clk_cfg; |
| 56 | struct audio_ext_clk audio_clk; |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 57 | const char *clk_name; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 58 | }; |
| 59 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 60 | 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] | 61 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 62 | 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] | 63 | } |
| 64 | |
| 65 | static int audio_ext_clk_prepare(struct clk_hw *hw) |
| 66 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 67 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 68 | struct pinctrl_info *pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 69 | int ret; |
| 70 | |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 71 | if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS) && |
| 72 | (clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 73 | clk_priv->clk_cfg.enable = 1; |
| 74 | ret = afe_set_lpass_clk_cfg(IDX_RSVD_3, &clk_priv->clk_cfg); |
| 75 | if (ret < 0) { |
| 76 | pr_err("%s afe_set_digital_codec_core_clock failed\n", |
| 77 | __func__); |
| 78 | return ret; |
| 79 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | if (pnctrl_info->pinctrl) { |
| 83 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 84 | pnctrl_info->active); |
| 85 | if (ret) { |
| 86 | pr_err("%s: active state select failed with %d\n", |
| 87 | __func__, ret); |
| 88 | return -EIO; |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | if (pnctrl_info->base) |
| 93 | iowrite32(1, pnctrl_info->base); |
| 94 | return 0; |
| 95 | } |
| 96 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 97 | static void audio_ext_clk_unprepare(struct clk_hw *hw) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 98 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 99 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 100 | struct pinctrl_info *pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 101 | int ret; |
| 102 | |
| 103 | if (pnctrl_info->pinctrl) { |
| 104 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 105 | pnctrl_info->sleep); |
| 106 | if (ret) { |
| 107 | pr_err("%s: active state select failed with %d\n", |
| 108 | __func__, ret); |
| 109 | return; |
| 110 | } |
| 111 | } |
| 112 | |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 113 | if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS) && |
| 114 | (clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 115 | clk_priv->clk_cfg.enable = 0; |
| 116 | ret = afe_set_lpass_clk_cfg(IDX_RSVD_3, &clk_priv->clk_cfg); |
| 117 | if (ret < 0) |
| 118 | pr_err("%s: afe_set_lpass_clk_cfg failed, ret = %d\n", |
| 119 | __func__, ret); |
| 120 | } |
| 121 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 122 | if (pnctrl_info->base) |
| 123 | iowrite32(0, pnctrl_info->base); |
| 124 | } |
| 125 | |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 126 | static u8 audio_ext_clk_get_parent(struct clk_hw *hw) |
| 127 | { |
| 128 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 129 | int num_parents = clk_hw_get_num_parents(hw); |
| 130 | const char * const *parent_names = hw->init->parent_names; |
| 131 | u8 i = 0, ret = hw->init->num_parents + 1; |
| 132 | |
| 133 | if ((clk_priv->clk_src == AUDIO_EXT_CLK_PMI) && clk_priv->clk_name) { |
| 134 | for (i = 0; i < num_parents; i++) { |
| 135 | if (!strcmp(parent_names[i], clk_priv->clk_name)) |
| 136 | ret = i; |
| 137 | } |
| 138 | pr_debug("%s: parent index = %u\n", __func__, ret); |
| 139 | return ret; |
| 140 | } else |
| 141 | return 0; |
| 142 | } |
| 143 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 144 | static const struct clk_ops audio_ext_clk_ops = { |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 145 | .prepare = audio_ext_clk_prepare, |
| 146 | .unprepare = audio_ext_clk_unprepare, |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 147 | .get_parent = audio_ext_clk_get_parent, |
| 148 | }; |
| 149 | |
| 150 | static const char * const audio_ext_pmi_div_clk[] = { |
| 151 | "qpnp_clkdiv_1", |
| 152 | "pms405_div_clk1", |
| 153 | "pm6150_div_clk1", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 154 | }; |
| 155 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 156 | static struct audio_ext_clk audio_clk_array[] = { |
| 157 | { |
| 158 | .pnctrl_info = {NULL}, |
| 159 | .fact = { |
| 160 | .mult = 1, |
| 161 | .div = 1, |
| 162 | .hw.init = &(struct clk_init_data){ |
| 163 | .name = "audio_ext_pmi_clk", |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 164 | .parent_names = audio_ext_pmi_div_clk, |
| 165 | .num_parents = |
| 166 | ARRAY_SIZE(audio_ext_pmi_div_clk), |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 167 | .ops = &audio_ext_clk_ops, |
| 168 | }, |
| 169 | }, |
| 170 | }, |
| 171 | { |
| 172 | .pnctrl_info = {NULL}, |
| 173 | .fact = { |
| 174 | .mult = 1, |
| 175 | .div = 1, |
| 176 | .hw.init = &(struct clk_init_data){ |
| 177 | .name = "audio_ext_pmi_lnbb_clk", |
| 178 | .parent_names = (const char *[]) |
| 179 | { "ln_bb_clk2" }, |
| 180 | .num_parents = 1, |
| 181 | .ops = &clk_dummy_ops, |
| 182 | }, |
| 183 | }, |
| 184 | }, |
| 185 | { |
| 186 | .pnctrl_info = {NULL}, |
| 187 | .fact = { |
| 188 | .mult = 1, |
| 189 | .div = 1, |
| 190 | .hw.init = &(struct clk_init_data){ |
| 191 | .name = "audio_lpass_mclk", |
| 192 | .ops = &audio_ext_clk_ops, |
| 193 | }, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 194 | }, |
| 195 | }, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 196 | { |
| 197 | .pnctrl_info = {NULL}, |
| 198 | .fact = { |
| 199 | .mult = 1, |
| 200 | .div = 1, |
| 201 | .hw.init = &(struct clk_init_data){ |
| 202 | .name = "audio_lpass_mclk2", |
| 203 | .ops = &audio_ext_clk_ops, |
| 204 | }, |
| 205 | }, |
| 206 | }, |
| 207 | { |
| 208 | .pnctrl_info = {NULL}, |
| 209 | .fact = { |
| 210 | .mult = 1, |
| 211 | .div = 1, |
| 212 | .hw.init = &(struct clk_init_data){ |
| 213 | .name = "audio_lpass_mclk3", |
| 214 | .ops = &audio_ext_clk_ops, |
| 215 | }, |
| 216 | }, |
| 217 | }, |
Aditya Bavanari | 7259ca6 | 2018-07-30 12:03:03 +0530 | [diff] [blame^] | 218 | { |
| 219 | .pnctrl_info = {NULL}, |
| 220 | .fact = { |
| 221 | .mult = 1, |
| 222 | .div = 1, |
| 223 | .hw.init = &(struct clk_init_data){ |
| 224 | .name = "audio_lpass_mclk4", |
| 225 | .ops = &audio_ext_clk_ops, |
| 226 | }, |
| 227 | }, |
| 228 | }, |
| 229 | { |
| 230 | .pnctrl_info = {NULL}, |
| 231 | .fact = { |
| 232 | .mult = 1, |
| 233 | .div = 1, |
| 234 | .hw.init = &(struct clk_init_data){ |
| 235 | .name = "audio_lpass_mclk5", |
| 236 | .ops = &audio_ext_clk_ops, |
| 237 | }, |
| 238 | }, |
| 239 | }, |
| 240 | { |
| 241 | .pnctrl_info = {NULL}, |
| 242 | .fact = { |
| 243 | .mult = 1, |
| 244 | .div = 1, |
| 245 | .hw.init = &(struct clk_init_data){ |
| 246 | .name = "audio_lpass_mclk6", |
| 247 | .ops = &audio_ext_clk_ops, |
| 248 | }, |
| 249 | }, |
| 250 | }, |
| 251 | { |
| 252 | .pnctrl_info = {NULL}, |
| 253 | .fact = { |
| 254 | .mult = 1, |
| 255 | .div = 1, |
| 256 | .hw.init = &(struct clk_init_data){ |
| 257 | .name = "audio_lpass_mclk7", |
| 258 | .ops = &audio_ext_clk_ops, |
| 259 | }, |
| 260 | }, |
| 261 | }, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 262 | }; |
| 263 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 264 | static int audio_get_pinctrl(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 265 | { |
| 266 | struct device *dev = &pdev->dev; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 267 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 268 | struct pinctrl_info *pnctrl_info; |
| 269 | struct pinctrl *pinctrl; |
| 270 | int ret; |
| 271 | u32 reg; |
| 272 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 273 | pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 274 | if (pnctrl_info->pinctrl) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 275 | dev_err(dev, "%s: already requested before\n", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 276 | __func__); |
| 277 | return -EINVAL; |
| 278 | } |
| 279 | |
| 280 | pinctrl = devm_pinctrl_get(dev); |
| 281 | if (IS_ERR_OR_NULL(pinctrl)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 282 | dev_err(dev, "%s: Unable to get pinctrl handle\n", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 283 | __func__); |
| 284 | return -EINVAL; |
| 285 | } |
| 286 | pnctrl_info->pinctrl = pinctrl; |
| 287 | /* get all state handles from Device Tree */ |
| 288 | pnctrl_info->sleep = pinctrl_lookup_state(pinctrl, "sleep"); |
| 289 | if (IS_ERR(pnctrl_info->sleep)) { |
| 290 | dev_err(dev, "%s: could not get sleep pinstate\n", |
| 291 | __func__); |
| 292 | goto err; |
| 293 | } |
| 294 | pnctrl_info->active = pinctrl_lookup_state(pinctrl, "active"); |
| 295 | if (IS_ERR(pnctrl_info->active)) { |
| 296 | dev_err(dev, "%s: could not get active pinstate\n", |
| 297 | __func__); |
| 298 | goto err; |
| 299 | } |
| 300 | /* Reset the TLMM pins to a default state */ |
| 301 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 302 | pnctrl_info->sleep); |
| 303 | if (ret) { |
| 304 | dev_err(dev, "%s: Disable TLMM pins failed with %d\n", |
| 305 | __func__, ret); |
| 306 | goto err; |
| 307 | } |
| 308 | |
| 309 | ret = of_property_read_u32(dev->of_node, "qcom,mclk-clk-reg", ®); |
| 310 | if (ret < 0) { |
| 311 | dev_dbg(dev, "%s: miss mclk reg\n", __func__); |
| 312 | } else { |
| 313 | pnctrl_info->base = ioremap(reg, sizeof(u32)); |
| 314 | if (pnctrl_info->base == NULL) { |
| 315 | dev_err(dev, "%s ioremap failed\n", __func__); |
| 316 | goto err; |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | return 0; |
| 321 | |
| 322 | err: |
| 323 | devm_pinctrl_put(pnctrl_info->pinctrl); |
| 324 | return -EINVAL; |
| 325 | } |
| 326 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 327 | static int audio_put_pinctrl(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 328 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 329 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
| 330 | struct pinctrl_info *pnctrl_info = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 331 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 332 | pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
| 333 | if (pnctrl_info && pnctrl_info->pinctrl) { |
| 334 | devm_pinctrl_put(pnctrl_info->pinctrl); |
| 335 | pnctrl_info->pinctrl = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | return 0; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 339 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 340 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 341 | static int audio_get_clk_data(struct platform_device *pdev) |
| 342 | { |
| 343 | int ret; |
| 344 | struct clk *audio_clk; |
| 345 | struct clk_hw *clkhw; |
| 346 | struct clk_onecell_data *clk_data; |
| 347 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 348 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 349 | clk_data = devm_kzalloc(&pdev->dev, sizeof(*clk_data), GFP_KERNEL); |
| 350 | if (!clk_data) |
| 351 | return -ENOMEM; |
| 352 | |
| 353 | clk_data->clk_num = 1; |
| 354 | clk_data->clks = devm_kzalloc(&pdev->dev, |
| 355 | sizeof(struct clk *), |
| 356 | GFP_KERNEL); |
| 357 | if (!clk_data->clks) |
| 358 | return -ENOMEM; |
| 359 | |
| 360 | clkhw = &clk_priv->audio_clk.fact.hw; |
| 361 | audio_clk = devm_clk_register(&pdev->dev, clkhw); |
| 362 | if (IS_ERR(audio_clk)) { |
| 363 | dev_err(&pdev->dev, |
| 364 | "%s: clock register failed for clk_src = %d\\n", |
| 365 | __func__, clk_priv->clk_src); |
| 366 | ret = PTR_ERR(audio_clk); |
| 367 | return ret; |
| 368 | } |
| 369 | clk_data->clks[0] = audio_clk; |
| 370 | |
| 371 | ret = of_clk_add_provider(pdev->dev.of_node, |
| 372 | of_clk_src_onecell_get, clk_data); |
| 373 | if (ret) |
| 374 | dev_err(&pdev->dev, "%s: clock add failed for clk_src = %d\n", |
| 375 | __func__, clk_priv->clk_src); |
| 376 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 377 | return ret; |
| 378 | } |
| 379 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 380 | static int audio_ref_clk_probe(struct platform_device *pdev) |
| 381 | { |
| 382 | int ret; |
| 383 | struct audio_ext_clk_priv *clk_priv; |
Laxminath Kasam | 43c1a13 | 2018-06-15 13:18:07 +0530 | [diff] [blame] | 384 | 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] | 385 | |
| 386 | clk_priv = devm_kzalloc(&pdev->dev, sizeof(*clk_priv), GFP_KERNEL); |
| 387 | if (!clk_priv) |
| 388 | return -ENOMEM; |
| 389 | |
| 390 | ret = of_property_read_u32(pdev->dev.of_node, |
| 391 | "qcom,codec-ext-clk-src", |
| 392 | &clk_src); |
| 393 | if (ret) { |
| 394 | dev_err(&pdev->dev, "%s: could not get clk source, ret = %d\n", |
| 395 | __func__, ret); |
| 396 | return ret; |
| 397 | } |
| 398 | |
| 399 | if (clk_src >= AUDIO_EXT_CLK_MAX) { |
| 400 | dev_err(&pdev->dev, "%s: Invalid clk source = %d\n", |
| 401 | __func__, clk_src); |
| 402 | return -EINVAL; |
| 403 | } |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 404 | clk_priv->clk_name = NULL; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 405 | clk_priv->clk_src = clk_src; |
| 406 | memcpy(&clk_priv->audio_clk, &audio_clk_array[clk_src], |
| 407 | sizeof(struct audio_ext_clk)); |
| 408 | |
| 409 | /* Init lpass clk default values */ |
| 410 | clk_priv->clk_cfg.clk_set_minor_version = |
| 411 | Q6AFE_LPASS_CLK_CONFIG_API_VERSION; |
| 412 | clk_priv->clk_cfg.clk_id = Q6AFE_LPASS_CLK_ID_SPEAKER_I2S_OSR; |
| 413 | clk_priv->clk_cfg.clk_freq_in_hz = Q6AFE_LPASS_OSR_CLK_9_P600_MHZ; |
| 414 | clk_priv->clk_cfg.clk_attri = Q6AFE_LPASS_CLK_ATTRIBUTE_COUPLE_NO; |
| 415 | |
| 416 | ret = of_property_read_u32(pdev->dev.of_node, |
| 417 | "qcom,codec-lpass-ext-clk-freq", |
| 418 | &clk_freq); |
| 419 | if (!ret) |
| 420 | clk_priv->clk_cfg.clk_freq_in_hz = clk_freq; |
| 421 | |
| 422 | ret = of_property_read_u32(pdev->dev.of_node, |
| 423 | "qcom,codec-lpass-clk-id", |
| 424 | &clk_id); |
| 425 | if (!ret) |
| 426 | clk_priv->clk_cfg.clk_id = clk_id; |
| 427 | |
| 428 | dev_dbg(&pdev->dev, "%s: ext-clk freq: %d, lpass clk_id: %d, clk_src: %d\n", |
| 429 | __func__, clk_priv->clk_cfg.clk_freq_in_hz, |
| 430 | clk_priv->clk_cfg.clk_id, clk_priv->clk_src); |
| 431 | platform_set_drvdata(pdev, clk_priv); |
| 432 | |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 433 | ret = of_property_read_string(pdev->dev.of_node, "pmic-clock-names", |
| 434 | &clk_priv->clk_name); |
| 435 | if (ret) |
| 436 | dev_dbg(&pdev->dev, "%s: could not find pmic clock names\n", |
| 437 | __func__); |
Laxminath Kasam | 43c1a13 | 2018-06-15 13:18:07 +0530 | [diff] [blame] | 438 | /* |
| 439 | * property qcom,use-pinctrl to be defined in DTSI to val 1 |
| 440 | * for clock nodes using pinctrl |
| 441 | */ |
| 442 | of_property_read_u32(pdev->dev.of_node, "qcom,use-pinctrl", |
| 443 | &use_pinctrl); |
| 444 | dev_dbg(&pdev->dev, "%s: use-pinctrl : %d\n", |
| 445 | __func__, use_pinctrl); |
| 446 | |
| 447 | if (use_pinctrl) { |
| 448 | ret = audio_get_pinctrl(pdev); |
| 449 | if (ret) { |
| 450 | dev_err(&pdev->dev, "%s: Parsing PMI pinctrl failed\n", |
| 451 | __func__); |
| 452 | return ret; |
| 453 | } |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 454 | } |
| 455 | |
| 456 | ret = audio_get_clk_data(pdev); |
| 457 | if (ret) { |
| 458 | dev_err(&pdev->dev, "%s: clk_init is failed\n", |
| 459 | __func__); |
| 460 | audio_put_pinctrl(pdev); |
| 461 | return ret; |
| 462 | } |
| 463 | |
| 464 | return 0; |
| 465 | } |
| 466 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 467 | static int audio_ref_clk_remove(struct platform_device *pdev) |
| 468 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 469 | audio_put_pinctrl(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 470 | |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | static const struct of_device_id audio_ref_clk_match[] = { |
| 475 | {.compatible = "qcom,audio-ref-clk"}, |
| 476 | {} |
| 477 | }; |
| 478 | MODULE_DEVICE_TABLE(of, audio_ref_clk_match); |
| 479 | |
| 480 | static struct platform_driver audio_ref_clk_driver = { |
| 481 | .driver = { |
| 482 | .name = "audio-ref-clk", |
| 483 | .owner = THIS_MODULE, |
| 484 | .of_match_table = audio_ref_clk_match, |
| 485 | }, |
| 486 | .probe = audio_ref_clk_probe, |
| 487 | .remove = audio_ref_clk_remove, |
| 488 | }; |
| 489 | |
| 490 | int audio_ref_clk_platform_init(void) |
| 491 | { |
| 492 | return platform_driver_register(&audio_ref_clk_driver); |
| 493 | } |
| 494 | |
| 495 | void audio_ref_clk_platform_exit(void) |
| 496 | { |
| 497 | platform_driver_unregister(&audio_ref_clk_driver); |
| 498 | } |
| 499 | |
| 500 | MODULE_DESCRIPTION("Audio Ref Up Clock module platform driver"); |
| 501 | MODULE_LICENSE("GPL v2"); |