5  * Copyright (c) 2013-2014 Texas Instruments, Inc.
21 #include <linux/clk-provider.h>
39 	int delay;  member
66 	ret = palmas_update_bits(cinfo->palmas, PALMAS_RESOURCE_BASE,  in palmas_clks_prepare()
67 				 cinfo->clk_desc->control_reg,  in palmas_clks_prepare()
68 				 cinfo->clk_desc->enable_mask,  in palmas_clks_prepare()
69 				 cinfo->clk_desc->enable_mask);  in palmas_clks_prepare()
71 		dev_err(cinfo->dev, "Reg 0x%02x update failed, %d\n",  in palmas_clks_prepare()
72 			cinfo->clk_desc->control_reg, ret);  in palmas_clks_prepare()
73 	else if (cinfo->clk_desc->delay)  in palmas_clks_prepare()
74 		udelay(cinfo->clk_desc->delay);  in palmas_clks_prepare()
88 	if (cinfo->ext_control_pin)  in palmas_clks_unprepare()
91 	ret = palmas_update_bits(cinfo->palmas, PALMAS_RESOURCE_BASE,  in palmas_clks_unprepare()
92 				 cinfo->clk_desc->control_reg,  in palmas_clks_unprepare()
93 				 cinfo->clk_desc->enable_mask, 0);  in palmas_clks_unprepare()
95 		dev_err(cinfo->dev, "Reg 0x%02x update failed, %d\n",  in palmas_clks_unprepare()
96 			cinfo->clk_desc->control_reg, ret);  in palmas_clks_unprepare()
105 	if (cinfo->ext_control_pin)  in palmas_clks_is_prepared()
108 	ret = palmas_read(cinfo->palmas, PALMAS_RESOURCE_BASE,  in palmas_clks_is_prepared()
109 			  cinfo->clk_desc->control_reg, &val);  in palmas_clks_is_prepared()
111 		dev_err(cinfo->dev, "Reg 0x%02x read failed, %d\n",  in palmas_clks_is_prepared()
112 			cinfo->clk_desc->control_reg, ret);  in palmas_clks_is_prepared()
115 	return !!(val & cinfo->clk_desc->enable_mask);  in palmas_clks_is_prepared()
126 	struct clk_init_data init;  member
131 	.init = {
142 		.delay = 200,
147 	.init = {
158 		.delay = 200,
164 		.compatible = "ti,palmas-clk32kg",
168 		.compatible = "ti,palmas-clk32kgaudio",
178 	struct device_node *node = pdev->dev.of_node;  in palmas_clks_get_clk_data()
182 	ret = of_property_read_u32(node, "ti,external-sleep-control",  in palmas_clks_get_clk_data()
198 		dev_warn(&pdev->dev, "%pOFn: Invalid ext control option: %u\n",  in palmas_clks_get_clk_data()
203 	cinfo->ext_control_pin = prop;  in palmas_clks_get_clk_data()
210 	ret = palmas_update_bits(cinfo->palmas, PALMAS_RESOURCE_BASE,  in palmas_clks_init_configure()
211 				 cinfo->clk_desc->control_reg,  in palmas_clks_init_configure()
212 				 cinfo->clk_desc->sleep_mask, 0);  in palmas_clks_init_configure()
214 		dev_err(cinfo->dev, "Reg 0x%02x update failed, %d\n",  in palmas_clks_init_configure()
215 			cinfo->clk_desc->control_reg, ret);  in palmas_clks_init_configure()
219 	if (cinfo->ext_control_pin) {  in palmas_clks_init_configure()
220 		ret = clk_prepare(cinfo->hw.clk);  in palmas_clks_init_configure()
222 			dev_err(cinfo->dev, "Clock prep failed, %d\n", ret);  in palmas_clks_init_configure()
226 		ret = palmas_ext_control_req_config(cinfo->palmas,  in palmas_clks_init_configure()
227 					cinfo->clk_desc->sleep_reqstr_id,  in palmas_clks_init_configure()
228 					cinfo->ext_control_pin, true);  in palmas_clks_init_configure()
230 			dev_err(cinfo->dev, "Ext config for %s failed, %d\n",  in palmas_clks_init_configure()
231 				cinfo->clk_desc->clk_name, ret);  in palmas_clks_init_configure()
232 			clk_unprepare(cinfo->hw.clk);  in palmas_clks_init_configure()
241 	struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);  in palmas_clks_probe()
242 	struct device_node *node = pdev->dev.of_node;  in palmas_clks_probe()
247 	match_data = of_device_get_match_data(&pdev->dev);  in palmas_clks_probe()
251 	cinfo = devm_kzalloc(&pdev->dev, sizeof(*cinfo), GFP_KERNEL);  in palmas_clks_probe()
253 		return -ENOMEM;  in palmas_clks_probe()
258 	cinfo->dev = &pdev->dev;  in palmas_clks_probe()
259 	cinfo->palmas = palmas;  in palmas_clks_probe()
261 	cinfo->clk_desc = &match_data->desc;  in palmas_clks_probe()
262 	cinfo->hw.init = &match_data->init;  in palmas_clks_probe()
263 	ret = devm_clk_hw_register(&pdev->dev, &cinfo->hw);  in palmas_clks_probe()
265 		dev_err(&pdev->dev, "Fail to register clock %s, %d\n",  in palmas_clks_probe()
266 			match_data->desc.clk_name, ret);  in palmas_clks_probe()
272 		dev_err(&pdev->dev, "Clock config failed, %d\n", ret);  in palmas_clks_probe()
276 	ret = of_clk_add_hw_provider(node, of_clk_hw_simple_get, &cinfo->hw);  in palmas_clks_probe()
278 		dev_err(&pdev->dev, "Fail to add clock driver, %d\n", ret);  in palmas_clks_probe()
284 	of_clk_del_provider(pdev->dev.of_node);  in palmas_clks_remove()
290 		.name = "palmas-clk",
300 MODULE_ALIAS("platform:palmas-clk");