[alsa-devel] [PATCH v6 00/12] AC97 device/driver model revamp

-- 2.11.0 [1] Diff from the previous serie ---8>--- diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 5ffe4f4dfa10..6d175698a49a 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1635,7 +1635,6 @@ config MFD_WM97xx select AC97_BUS_COMPAT depends on AC97_BUS_NEW help - The WM9705, WM9712 and WM9713 is a highly integrated hi-fi CODEC designed for smartphone applications. As well as audio functionality it has on board GPIO and a touchscreen functionality which is diff --git a/drivers/mfd/wm97xx-core.c b/drivers/mfd/wm97xx-core.c index 473bbf9510e5..66e477fffd43 100644 --- a/drivers/mfd/wm97xx-core.c +++ b/drivers/mfd/wm97xx-core.c @@ -1,7 +1,7 @@ /* * Wolfson WM97xx -- Core device * - * Copyright (C) 2016 Robert Jarzmik + * Copyright (C) 2017 Robert Jarzmik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -14,14 +14,13 @@ * - a GPIO block */ -#include <linux/module.h> - #include <linux/device.h> #include <linux/mfd/core.h> #include <linux/mfd/wm97xx.h> -#include <linux/wm97xx.h> +#include <linux/module.h> #include <linux/regmap.h> #include <linux/slab.h> +#include <linux/wm97xx.h> #include <sound/ac97/codec.h> #include <sound/ac97/compat.h> @@ -34,6 +33,7 @@ struct wm97xx_priv { struct regmap *regmap; struct snd_ac97 *ac97; struct device *dev; + struct wm97xx_platform_data codec_pdata; }; static bool wm97xx_readable_reg(struct device *dev, unsigned int reg) @@ -108,33 +108,14 @@ static const struct regmap_config wm9705_regmap_config = { .writeable_reg = wm97xx_writeable_reg, }; -static int wm9705_register(struct wm97xx_priv *wm97xx, - struct wm97xx_pdata *pdata) -{ - static struct wm97xx_platform_data codec_pdata; - static const struct mfd_cell cells[] = { - { - .name = "wm9705-codec", - .platform_data = &codec_pdata, - .pdata_size = sizeof(codec_pdata), - }, - { - .name = "wm97xx-ts", - .platform_data = &codec_pdata, - .pdata_size = sizeof(codec_pdata), - }, - }; - - codec_pdata.ac97 = wm97xx->ac97; - codec_pdata.regmap = devm_regmap_init_ac97(wm97xx->ac97, - &wm9705_regmap_config); - codec_pdata.batt_pdata = pdata->batt_pdata; - if (IS_ERR(codec_pdata.regmap)) - return PTR_ERR(codec_pdata.regmap); - - return devm_mfd_add_devices(wm97xx->dev, PLATFORM_DEVID_NONE, cells, - ARRAY_SIZE(cells), NULL, 0, NULL); -} +static struct mfd_cell wm9705_cells[] = { + { + .name = "wm9705-codec", + }, + { + .name = "wm97xx-ts", + }, +}; static bool wm9712_volatile_reg(struct device *dev, unsigned int reg) { @@ -199,33 +180,14 @@ static const struct regmap_config wm9712_regmap_config = { .writeable_reg = wm97xx_writeable_reg, }; -static int wm9712_register(struct wm97xx_priv *wm97xx, - struct wm97xx_pdata *pdata) -{ - static struct wm97xx_platform_data codec_pdata; - static const struct mfd_cell cells[] = { - { - .name = "wm9712-codec", - .platform_data = &codec_pdata, - .pdata_size = sizeof(codec_pdata), - }, - { - .name = "wm97xx-ts", - .platform_data = &codec_pdata, - .pdata_size = sizeof(codec_pdata), - }, - }; - - codec_pdata.ac97 = wm97xx->ac97; - codec_pdata.regmap = devm_regmap_init_ac97(wm97xx->ac97, - &wm9712_regmap_config); - codec_pdata.batt_pdata = pdata->batt_pdata; - if (IS_ERR(codec_pdata.regmap)) - return PTR_ERR(codec_pdata.regmap); - - return devm_mfd_add_devices(wm97xx->dev, PLATFORM_DEVID_NONE, cells, - ARRAY_SIZE(cells), NULL, 0, NULL); -} +static struct mfd_cell wm9712_cells[] = { + { + .name = "wm9712-codec", + }, + { + .name = "wm97xx-ts", + }, +}; static const struct reg_default wm9713_reg_defaults[] = { { 0x02, 0x8080 }, /* Speaker Output Volume */ @@ -293,39 +255,23 @@ static const struct regmap_config wm9713_regmap_config = { .writeable_reg = wm97xx_writeable_reg, }; -static int wm9713_register(struct wm97xx_priv *wm97xx, - struct wm97xx_pdata *pdata) -{ - static struct wm97xx_platform_data codec_pdata; - static const struct mfd_cell cells[] = { - { - .name = "wm9713-codec", - .platform_data = &codec_pdata, - .pdata_size = sizeof(codec_pdata), - }, - { - .name = "wm97xx-ts", - .platform_data = &codec_pdata, - .pdata_size = sizeof(codec_pdata), - }, - }; - - codec_pdata.ac97 = wm97xx->ac97; - codec_pdata.regmap = devm_regmap_init_ac97(wm97xx->ac97, - &wm9713_regmap_config); - codec_pdata.batt_pdata = pdata->batt_pdata; - if (IS_ERR(codec_pdata.regmap)) - return PTR_ERR(codec_pdata.regmap); - - return devm_mfd_add_devices(wm97xx->dev, PLATFORM_DEVID_NONE, cells, - ARRAY_SIZE(cells), NULL, 0, NULL); -} +static struct mfd_cell wm9713_cells[] = { + { + .name = "wm9713-codec", + }, + { + .name = "wm97xx-ts", + }, +}; static int wm97xx_ac97_probe(struct ac97_codec_device *adev) { struct wm97xx_priv *wm97xx; - int ret; - void *pdata = snd_ac97_codec_get_platdata(adev); + const struct regmap_config *config; + struct wm97xx_platform_data *codec_pdata; + struct mfd_cell *cells; + int ret = 0, nb_cells, i; + struct wm97xx_pdata *pdata = snd_ac97_codec_get_platdata(adev); wm97xx = devm_kzalloc(ac97_codec_dev2dev(adev), sizeof(*wm97xx), GFP_KERNEL); @@ -342,20 +288,48 @@ static int wm97xx_ac97_probe(struct ac97_codec_device *adev) dev_info(wm97xx->dev, "wm97xx core found, id=0x%x\n", adev->vendor_id); + codec_pdata = &wm97xx->codec_pdata; + codec_pdata->ac97 = wm97xx->ac97; + codec_pdata->batt_pdata = pdata->batt_pdata; + switch (adev->vendor_id) { case WM9705_VENDOR_ID: - ret = wm9705_register(wm97xx, pdata); + config = &wm9705_regmap_config; + cells = wm9705_cells; + nb_cells = ARRAY_SIZE(wm9705_cells); break; case WM9712_VENDOR_ID: - ret = wm9712_register(wm97xx, pdata); + config = &wm9712_regmap_config; + cells = wm9712_cells; + nb_cells = ARRAY_SIZE(wm9712_cells); break; case WM9713_VENDOR_ID: - ret = wm9713_register(wm97xx, pdata); + config = &wm9713_regmap_config; + cells = wm9713_cells; + nb_cells = ARRAY_SIZE(wm9713_cells); break; default: + config = NULL; + } + + for (i = 0; i < nb_cells; i++) { + cells[i].platform_data = codec_pdata; + cells[i].pdata_size = sizeof(*codec_pdata); + } + + if (config) { + codec_pdata->regmap = + devm_regmap_init_ac97(wm97xx->ac97, config); + if (IS_ERR(codec_pdata->regmap)) + ret = PTR_ERR(codec_pdata->regmap); + } else { ret = -ENODEV; } + if (!ret) + ret = devm_mfd_add_devices(wm97xx->dev, PLATFORM_DEVID_NONE, + cells, nb_cells, NULL, 0, NULL); + if (ret) snd_ac97_compat_release(wm97xx->ac97); diff --git a/include/linux/mfd/wm97xx.h b/include/linux/mfd/wm97xx.h index 627322f14d48..45fb54f19d09 100644 --- a/include/linux/mfd/wm97xx.h +++ b/include/linux/mfd/wm97xx.h @@ -1,17 +1,12 @@ /* * wm97xx client interface * - * Copyright (C) 2016 Robert Jarzmik + * Copyright (C) 2017 Robert Jarzmik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef __LINUX_MFD_WM97XX_H @@ -27,5 +22,4 @@ struct wm97xx_platform_data { struct wm97xx_batt_pdata *batt_pdata; }; - #endif