126 static void iclkip_params_init(struct iclkip_params *p)  in iclkip_params_init()  argument
128 	memset(p, 0, sizeof(*p));  in iclkip_params_init()
130 	p->iclk_virtual_root_freq = 172800 * 1000;  in iclkip_params_init()
131 	p->iclk_pi_range = 64;  in iclkip_params_init()
134 static int lpt_iclkip_freq(struct iclkip_params *p)  in lpt_iclkip_freq()  argument
136 	return DIV_ROUND_CLOSEST(p->iclk_virtual_root_freq,  in lpt_iclkip_freq()
137 				 p->desired_divisor << p->auxdiv);  in lpt_iclkip_freq()
140 static void lpt_compute_iclkip(struct iclkip_params *p, int clock)  in lpt_compute_iclkip()  argument
142 	iclkip_params_init(p);  in lpt_compute_iclkip()
150 	for (p->auxdiv = 0; p->auxdiv < 2; p->auxdiv++) {  in lpt_compute_iclkip()
151 		p->desired_divisor = DIV_ROUND_CLOSEST(p->iclk_virtual_root_freq,  in lpt_compute_iclkip()
152 						       clock << p->auxdiv);  in lpt_compute_iclkip()
153 		p->divsel = (p->desired_divisor / p->iclk_pi_range) - 2;  in lpt_compute_iclkip()
154 		p->phaseinc = p->desired_divisor % p->iclk_pi_range;  in lpt_compute_iclkip()
160 		if (p->divsel <= 0x7f)  in lpt_compute_iclkip()
167 	struct iclkip_params p;  in lpt_iclkip()  local
169 	lpt_compute_iclkip(&p, crtc_state->hw.adjusted_mode.crtc_clock);  in lpt_iclkip()
171 	return lpt_iclkip_freq(&p);  in lpt_iclkip()
180 	struct iclkip_params p;  in lpt_program_iclkip()  local
185 	lpt_compute_iclkip(&p, clock);  in lpt_program_iclkip()
186 	drm_WARN_ON(&dev_priv->drm, lpt_iclkip_freq(&p) != clock);  in lpt_program_iclkip()
189 	drm_WARN_ON(&dev_priv->drm, SBI_SSCDIVINTPHASE_DIVSEL(p.divsel) &  in lpt_program_iclkip()
191 	drm_WARN_ON(&dev_priv->drm, SBI_SSCDIVINTPHASE_DIR(p.phasedir) &  in lpt_program_iclkip()
196 		    clock, p.auxdiv, p.divsel, p.phasedir, p.phaseinc);  in lpt_program_iclkip()
203 	temp |= SBI_SSCDIVINTPHASE_DIVSEL(p.divsel);  in lpt_program_iclkip()
205 	temp |= SBI_SSCDIVINTPHASE_INCVAL(p.phaseinc);  in lpt_program_iclkip()
206 	temp |= SBI_SSCDIVINTPHASE_DIR(p.phasedir);  in lpt_program_iclkip()
213 	temp |= SBI_SSCAUXDIV_FINALDIV2SEL(p.auxdiv);  in lpt_program_iclkip()
231 	struct iclkip_params p;  in lpt_get_iclkip()  local
237 	iclkip_params_init(&p);  in lpt_get_iclkip()
248 	p.divsel = (temp & SBI_SSCDIVINTPHASE_DIVSEL_MASK) >>  in lpt_get_iclkip()
250 	p.phaseinc = (temp & SBI_SSCDIVINTPHASE_INCVAL_MASK) >>  in lpt_get_iclkip()
254 	p.auxdiv = (temp & SBI_SSCAUXDIV_FINALDIV2SEL_MASK) >>  in lpt_get_iclkip()
259 	p.desired_divisor = (p.divsel + 2) * p.iclk_pi_range + p.phaseinc;  in lpt_get_iclkip()
261 	return lpt_iclkip_freq(&p);  in lpt_get_iclkip()