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