1 // SPDX-License-Identifier: GPL-2.0
5  * Copyright (C) 2014-2016 Intel Corporation.
27 	unsigned int		clkdiv;  member
46 	return -EINVAL;  in pti_width_mode()
54 	return scnprintf(buf, PAGE_SIZE, "%d\n", pti_mode[pti->mode]);  in mode_show()
72 	pti->mode = ret;  in mode_store()
85 	return scnprintf(buf, PAGE_SIZE, "%d\n", pti->freeclk);  in freerunning_clock_show()
100 	pti->freeclk = !!val;  in freerunning_clock_store()
113 	return scnprintf(buf, PAGE_SIZE, "%d\n", 1u << pti->clkdiv);  in clock_divider_show()
129 		return -EINVAL;  in clock_divider_store()
131 	pti->clkdiv = val;  in clock_divider_store()
151 	struct pti_device *pti = dev_get_drvdata(&thdev->dev);  in intel_th_pti_activate()
154 	if (pti->patgen)  in intel_th_pti_activate()
155 		ctl |= pti->patgen << __ffs(PTI_PATGENMODE);  in intel_th_pti_activate()
156 	if (pti->freeclk)  in intel_th_pti_activate()
158 	ctl |= pti->mode << __ffs(PTI_MODE);  in intel_th_pti_activate()
159 	ctl |= pti->clkdiv << __ffs(PTI_CLKDIV);  in intel_th_pti_activate()
160 	ctl |= pti->lpp_dest << __ffs(LPP_DEST);  in intel_th_pti_activate()
162 	iowrite32(ctl, pti->base + REG_PTI_CTL);  in intel_th_pti_activate()
171 	struct pti_device *pti = dev_get_drvdata(&thdev->dev);  in intel_th_pti_deactivate()
175 	iowrite32(0, pti->base + REG_PTI_CTL);  in intel_th_pti_deactivate()
180 	u32 ctl = ioread32(pti->base + REG_PTI_CTL);  in read_hw_config()
182 	pti->mode	= (ctl & PTI_MODE) >> __ffs(PTI_MODE);  in read_hw_config()
183 	pti->clkdiv	= (ctl & PTI_CLKDIV) >> __ffs(PTI_CLKDIV);  in read_hw_config()
184 	pti->freeclk	= !!(ctl & PTI_FCEN);  in read_hw_config()
186 	if (!pti_mode[pti->mode])  in read_hw_config()
187 		pti->mode = pti_width_mode(4);  in read_hw_config()
188 	if (!pti->clkdiv)  in read_hw_config()
189 		pti->clkdiv = 1;  in read_hw_config()
191 	if (pti->thdev->output.type == GTH_LPP) {  in read_hw_config()
193 			pti->lpp_dest_mask |= LPP_DEST_PTI;  in read_hw_config()
195 			pti->lpp_dest_mask |= LPP_DEST_EXI;  in read_hw_config()
197 			pti->lpp_dest = 1;  in read_hw_config()
203 	struct device *dev = &thdev->dev;  in intel_th_pti_probe()
210 		return -ENODEV;  in intel_th_pti_probe()
212 	base = devm_ioremap(dev, res->start, resource_size(res));  in intel_th_pti_probe()
214 		return -ENOMEM;  in intel_th_pti_probe()
218 		return -ENOMEM;  in intel_th_pti_probe()
220 	pti->thdev = thdev;  in intel_th_pti_probe()
221 	pti->base = base;  in intel_th_pti_probe()
255 	for (i = ARRAY_SIZE(lpp_dest_str) - 1; i >= 0; i--) {  in lpp_dest_show()
256 		const char *fmt = pti->lpp_dest == i ? "[%s] " : "%s ";  in lpp_dest_show()
258 		if (!(pti->lpp_dest_mask & BIT(i)))  in lpp_dest_show()
261 		ret += scnprintf(buf + ret, PAGE_SIZE - ret,  in lpp_dest_show()
266 		buf[ret - 1] = '\n';  in lpp_dest_show()
281 	if (!(pti->lpp_dest_mask & BIT(i)))  in lpp_dest_store()
282 		return -EINVAL;  in lpp_dest_store()
284 	pti->lpp_dest = i;  in lpp_dest_store()