1 // SPDX-License-Identifier: GPL-2.0-or-later
6  *   - Si52144 - 4x DIFF
7  *   - Si52146 - 6x DIFF
8  *   - Si52147 - 9x DIFF
10  *   - Si52144
17 #include <linux/clk-provider.h>
39 		   ((UV) - SI521XX_REG_DA_AMP_MIN) / SI521XX_REG_DA_AMP_STEP)
44 #define SI521XX_OE_MAP_GET_OE(oe, map)	(((map) >> (((oe) - 1) * 8)) & 0xff)
109 		return -EIO;  in si521xx_regmap_i2c_write()
121 	xfer[0].addr = i2c->addr;  in si521xx_regmap_i2c_read()
126 	xfer[1].addr = i2c->addr;  in si521xx_regmap_i2c_read()
131 	ret = i2c_transfer(i2c->adapter, xfer, 2);  in si521xx_regmap_i2c_read()
135 		return -EIO;  in si521xx_regmap_i2c_read()
195 	struct si521xx *si = si_clk->si;  in si521xx_diff_prepare()
197 	regmap_set_bits(si->regmap, SI521XX_REG_OE(si_clk->reg), si_clk->bit);  in si521xx_diff_prepare()
205 	struct si521xx *si = si_clk->si;  in si521xx_diff_unprepare()
207 	regmap_clear_bits(si->regmap, SI521XX_REG_OE(si_clk->reg), si_clk->bit);  in si521xx_diff_unprepare()
220 	struct i2c_client *client = si->client;  in si521xx_get_common_config()
221 	struct device_node *np = client->dev.of_node;  in si521xx_get_common_config()
226 	si->pll_amplitude = SI521XX_REG_DA_AMP(SI521XX_REG_DA_AMP_DEFAULT);  in si521xx_get_common_config()
228 	/* Output clock amplitude */  in si521xx_get_common_config()
229 	ret = of_property_read_u32(np, "skyworks,out-amplitude-microvolt",  in si521xx_get_common_config()
234 			return dev_err_probe(&client->dev, -EINVAL,  in si521xx_get_common_config()
235 					     "Invalid skyworks,out-amplitude-microvolt value\n");  in si521xx_get_common_config()
237 		si->pll_amplitude = SI521XX_REG_DA_AMP(amp);  in si521xx_get_common_config()
245 	/* If amplitude is non-default, update it. */  in si521xx_update_config()
246 	if (si->pll_amplitude == SI521XX_REG_DA_AMP(SI521XX_REG_DA_AMP_DEFAULT))  in si521xx_update_config()
249 	regmap_update_bits(si->regmap, SI521XX_REG_DA,  in si521xx_update_config()
250 			   SI521XX_REG_DA_AMP_MASK, si->pll_amplitude);  in si521xx_update_config()
264 			clk->reg = SI521XX_REG_OE(oe);  in si521xx_diff_idx_to_reg_bit()
265 			clk->bit = 7 - b;  in si521xx_diff_idx_to_reg_bit()
275 	unsigned int idx = clkspec->args[0];  in si521xx_of_clk_get()
277 	return &si->clk_dif[idx].hw;  in si521xx_of_clk_get()
291 		return -EINVAL;  in si521xx_probe()
293 	si = devm_kzalloc(&client->dev, sizeof(*si), GFP_KERNEL);  in si521xx_probe()
295 		return -ENOMEM;  in si521xx_probe()
298 	si->client = client;  in si521xx_probe()
305 	si->regmap = devm_regmap_init(&client->dev, NULL, client,  in si521xx_probe()
307 	if (IS_ERR(si->regmap))  in si521xx_probe()
308 		return dev_err_probe(&client->dev, PTR_ERR(si->regmap),  in si521xx_probe()
326 		si->clk_dif[i].hw.init = &init;  in si521xx_probe()
327 		si->clk_dif[i].si = si;  in si521xx_probe()
329 		si521xx_diff_idx_to_reg_bit(chip_info, i, &si->clk_dif[i]);  in si521xx_probe()
331 		ret = devm_clk_hw_register(&client->dev, &si->clk_dif[i].hw);  in si521xx_probe()
336 	ret = devm_of_clk_add_hw_provider(&client->dev, si521xx_of_clk_get, si);  in si521xx_probe()
347 	regcache_cache_only(si->regmap, true);  in si521xx_suspend()
348 	regcache_mark_dirty(si->regmap);  in si521xx_suspend()
358 	regcache_cache_only(si->regmap, false);  in si521xx_resume()
359 	ret = regcache_sync(si->regmap);  in si521xx_resume()
385 		.name = "clk-si521xx",