gpio-syscon.c (853f0cb8603486a8ba17d5b728b52a9b4b029698) gpio-syscon.c (58383c78425e4ee1c077253cf297b641c861c02e)
1/*
2 * SYSCON GPIO driver
3 *
4 * Copyright (C) 2014 Alexander Shiyan <shc_work@mail.ru>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or

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154 return;
155
156 ret = regmap_update_bits(
157 priv->syscon,
158 (offs / SYSCON_REG_BITS) * SYSCON_REG_SIZE,
159 BIT(offs % SYSCON_REG_BITS) | KEYSTONE_LOCK_BIT,
160 BIT(offs % SYSCON_REG_BITS) | KEYSTONE_LOCK_BIT);
161 if (ret < 0)
1/*
2 * SYSCON GPIO driver
3 *
4 * Copyright (C) 2014 Alexander Shiyan <shc_work@mail.ru>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or

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154 return;
155
156 ret = regmap_update_bits(
157 priv->syscon,
158 (offs / SYSCON_REG_BITS) * SYSCON_REG_SIZE,
159 BIT(offs % SYSCON_REG_BITS) | KEYSTONE_LOCK_BIT,
160 BIT(offs % SYSCON_REG_BITS) | KEYSTONE_LOCK_BIT);
161 if (ret < 0)
162 dev_err(chip->dev, "gpio write failed ret(%d)\n", ret);
162 dev_err(chip->parent, "gpio write failed ret(%d)\n", ret);
163}
164
165static const struct syscon_gpio_data keystone_dsp_gpio = {
166 /* ARM Keystone 2 */
167 .compatible = NULL,
168 .flags = GPIO_SYSCON_FEAT_OUT,
169 .bit_count = 28,
170 .dat_bit_offset = 4,

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182 },
183 { }
184};
185MODULE_DEVICE_TABLE(of, syscon_gpio_ids);
186
187static int syscon_gpio_probe(struct platform_device *pdev)
188{
189 struct device *dev = &pdev->dev;
163}
164
165static const struct syscon_gpio_data keystone_dsp_gpio = {
166 /* ARM Keystone 2 */
167 .compatible = NULL,
168 .flags = GPIO_SYSCON_FEAT_OUT,
169 .bit_count = 28,
170 .dat_bit_offset = 4,

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182 },
183 { }
184};
185MODULE_DEVICE_TABLE(of, syscon_gpio_ids);
186
187static int syscon_gpio_probe(struct platform_device *pdev)
188{
189 struct device *dev = &pdev->dev;
190 const struct of_device_id *of_id;
190 const struct of_device_id *of_id = of_match_device(syscon_gpio_ids, dev);
191 struct syscon_gpio_priv *priv;
192 struct device_node *np = dev->of_node;
193 int ret;
194
191 struct syscon_gpio_priv *priv;
192 struct device_node *np = dev->of_node;
193 int ret;
194
195 of_id = of_match_device(syscon_gpio_ids, dev);
196 if (!of_id)
197 return -ENODEV;
198
199 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
200 if (!priv)
201 return -ENOMEM;
202
203 priv->data = of_id->data;
204
205 if (priv->data->compatible) {
206 priv->syscon = syscon_regmap_lookup_by_compatible(

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223 ret = of_property_read_u32_index(np, "gpio,syscon-dev", 2,
224 &priv->dir_reg_offset);
225 if (ret)
226 dev_dbg(dev, "can't read the dir register offset!\n");
227
228 priv->dir_reg_offset <<= 3;
229 }
230
195 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
196 if (!priv)
197 return -ENOMEM;
198
199 priv->data = of_id->data;
200
201 if (priv->data->compatible) {
202 priv->syscon = syscon_regmap_lookup_by_compatible(

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219 ret = of_property_read_u32_index(np, "gpio,syscon-dev", 2,
220 &priv->dir_reg_offset);
221 if (ret)
222 dev_dbg(dev, "can't read the dir register offset!\n");
223
224 priv->dir_reg_offset <<= 3;
225 }
226
231 priv->chip.dev = dev;
227 priv->chip.parent = dev;
232 priv->chip.owner = THIS_MODULE;
233 priv->chip.label = dev_name(dev);
234 priv->chip.base = -1;
235 priv->chip.ngpio = priv->data->bit_count;
236 priv->chip.get = syscon_gpio_get;
237 if (priv->data->flags & GPIO_SYSCON_FEAT_IN)
238 priv->chip.direction_input = syscon_gpio_dir_in;
239 if (priv->data->flags & GPIO_SYSCON_FEAT_OUT) {

--- 30 unchanged lines hidden --- 		228 priv->chip.owner = THIS_MODULE;
229 priv->chip.label = dev_name(dev);
230 priv->chip.base = -1;
231 priv->chip.ngpio = priv->data->bit_count;
232 priv->chip.get = syscon_gpio_get;
233 if (priv->data->flags & GPIO_SYSCON_FEAT_IN)
234 priv->chip.direction_input = syscon_gpio_dir_in;
235 if (priv->data->flags & GPIO_SYSCON_FEAT_OUT) {

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