166  * calc_rate() - Calculate rate based on m/n:d values
168  * @rate: Parent rate.
175  * Return calculated rate according to formula:
178  *   rate = ----------- x  ---
182 calc_rate(unsigned long rate, u32 m, u32 n, u32 mode, u32 hid_div)  in calc_rate()  argument
185 		rate = mult_frac(rate, 2, hid_div + 1);  in calc_rate()
188 		rate = mult_frac(rate, m, n);  in calc_rate()
190 	return rate;  in calc_rate()
233 	unsigned long clk_flags, rate = req->rate;  in _freq_tbl_determine_rate()  local
240 		f = qcom_find_freq_floor(f, rate);  in _freq_tbl_determine_rate()
243 		f = qcom_find_freq(f, rate);  in _freq_tbl_determine_rate()
262 		rate = f->freq;  in _freq_tbl_determine_rate()
264 			if (!rate)  in _freq_tbl_determine_rate()
265 				rate = req->rate;  in _freq_tbl_determine_rate()
266 			rate /= 2;  in _freq_tbl_determine_rate()
267 			rate *= f->pre_div + 1;  in _freq_tbl_determine_rate()
271 			u64 tmp = rate;  in _freq_tbl_determine_rate()
274 			rate = tmp;  in _freq_tbl_determine_rate()
277 		rate =  clk_hw_get_rate(p);  in _freq_tbl_determine_rate()
280 	req->best_parent_rate = rate;  in _freq_tbl_determine_rate()
281 	req->rate = f->freq;  in _freq_tbl_determine_rate()
294 	unsigned long parent_rate, rate;  in __clk_rcg2_select_conf()  local
304 	/* Search in each provided config the one that is near the wanted rate */  in __clk_rcg2_select_conf()
315 		rate = calc_rate(parent_rate, conf->n, conf->m, conf->n, conf->pre_div);  in __clk_rcg2_select_conf()
317 		if (rate == req_rate) {  in __clk_rcg2_select_conf()
322 		rate_diff = abs_diff(req_rate, rate);  in __clk_rcg2_select_conf()
334 		WARN(1, "%s: can't find a configuration for rate %lu\n",  in __clk_rcg2_select_conf()
346 	unsigned long clk_flags, rate = req->rate;  in _freq_tbl_fm_determine_rate()  local
352 	f = qcom_find_freq_multi(f, rate);  in _freq_tbl_fm_determine_rate()
356 	conf = __clk_rcg2_select_conf(hw, f, rate);  in _freq_tbl_fm_determine_rate()
369 		rate = f->freq;  in _freq_tbl_fm_determine_rate()
371 			if (!rate)  in _freq_tbl_fm_determine_rate()
372 				rate = req->rate;  in _freq_tbl_fm_determine_rate()
373 			rate /= 2;  in _freq_tbl_fm_determine_rate()
374 			rate *= conf->pre_div + 1;  in _freq_tbl_fm_determine_rate()
378 			u64 tmp = rate;  in _freq_tbl_fm_determine_rate()
382 			rate = tmp;  in _freq_tbl_fm_determine_rate()
385 		rate =  clk_hw_get_rate(p);  in _freq_tbl_fm_determine_rate()
389 	req->best_parent_rate = rate;  in _freq_tbl_fm_determine_rate()
390 	req->rate = f->freq;  in _freq_tbl_fm_determine_rate()
434 static void clk_rcg2_calc_mnd(u64 parent_rate, u64 rate, struct freq_tbl *f,  in clk_rcg2_calc_mnd()  argument
442 	rates_gcd = gcd(parent_rate, rate);  in clk_rcg2_calc_mnd()
443 	m = div64_u64(rate, rates_gcd);  in clk_rcg2_calc_mnd()
496 	clk_rcg2_calc_mnd(parent_rate, req->rate, f, mnd_max, hid_max / 2);  in clk_rcg2_determine_gp_rate()
498 	req->rate = calc_rate(parent_rate, f->m, f->n, f->n, f->pre_div);  in clk_rcg2_determine_gp_rate()
620 static int __clk_rcg2_set_rate(struct clk_hw *hw, unsigned long rate,  in __clk_rcg2_set_rate()  argument
628 		f = qcom_find_freq_floor(rcg->freq_tbl, rate);  in __clk_rcg2_set_rate()
631 		f = qcom_find_freq(rcg->freq_tbl, rate);  in __clk_rcg2_set_rate()
643 static int __clk_rcg2_fm_set_rate(struct clk_hw *hw, unsigned long rate)  in __clk_rcg2_fm_set_rate()  argument
650 	f = qcom_find_freq_multi(rcg->freq_multi_tbl, rate);  in __clk_rcg2_fm_set_rate()
654 	conf = __clk_rcg2_select_conf(hw, f, rate);  in __clk_rcg2_fm_set_rate()
667 static int clk_rcg2_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_rcg2_set_rate()  argument
670 	return __clk_rcg2_set_rate(hw, rate, CEIL);  in clk_rcg2_set_rate()
673 static int clk_rcg2_set_gp_rate(struct clk_hw *hw, unsigned long rate,  in clk_rcg2_set_gp_rate()  argument
682 	clk_rcg2_calc_mnd(parent_rate, rate, f, mnd_max, hid_max / 2);  in clk_rcg2_set_gp_rate()
689 static int clk_rcg2_set_floor_rate(struct clk_hw *hw, unsigned long rate,  in clk_rcg2_set_floor_rate()  argument
692 	return __clk_rcg2_set_rate(hw, rate, FLOOR);  in clk_rcg2_set_floor_rate()
695 static int clk_rcg2_fm_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_rcg2_fm_set_rate()  argument
698 	return __clk_rcg2_fm_set_rate(hw, rate);  in clk_rcg2_fm_set_rate()
702 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_rcg2_set_rate_and_parent()  argument
704 	return __clk_rcg2_set_rate(hw, rate, CEIL);  in clk_rcg2_set_rate_and_parent()
708 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_rcg2_set_floor_rate_and_parent()  argument
710 	return __clk_rcg2_set_rate(hw, rate, FLOOR);  in clk_rcg2_set_floor_rate_and_parent()
714 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_rcg2_fm_set_rate_and_parent()  argument
716 	return __clk_rcg2_fm_set_rate(hw, rate);  in clk_rcg2_fm_set_rate_and_parent()
866 static const struct frac_entry frac_table_675m[] = {	/* link rate of 270M */
877 static struct frac_entry frac_table_810m[] = { /* Link rate of 162M */
888 static int clk_edp_pixel_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_edp_pixel_set_rate()  argument
906 		request = rate;  in clk_edp_pixel_set_rate()
928 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_edp_pixel_set_rate_and_parent()  argument
931 	return clk_edp_pixel_set_rate(hw, rate, parent_rate);  in clk_edp_pixel_set_rate_and_parent()
956 		request = req->rate;  in clk_edp_pixel_determine_rate()
968 		req->rate = calc_rate(req->best_parent_rate,  in clk_edp_pixel_determine_rate()
998 	if (req->rate == 0)  in clk_byte_determine_rate()
1002 	req->best_parent_rate = parent_rate = clk_hw_round_rate(p, req->rate);  in clk_byte_determine_rate()
1004 	div = DIV_ROUND_UP((2 * parent_rate), req->rate) - 1;  in clk_byte_determine_rate()
1007 	req->rate = calc_rate(parent_rate, 0, 0, 0, div);  in clk_byte_determine_rate()
1012 static int clk_byte_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_byte_set_rate()  argument
1020 	div = DIV_ROUND_UP((2 * parent_rate), rate) - 1;  in clk_byte_set_rate()
1029 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_byte_set_rate_and_parent()  argument
1032 	return clk_byte_set_rate(hw, rate, parent_rate);  in clk_byte_set_rate_and_parent()
1053 	unsigned long rate = req->rate;  in clk_byte2_determine_rate()  local
1055 	if (rate == 0)  in clk_byte2_determine_rate()
1059 	req->best_parent_rate = parent_rate = clk_hw_round_rate(p, rate);  in clk_byte2_determine_rate()
1061 	div = DIV_ROUND_UP((2 * parent_rate), rate) - 1;  in clk_byte2_determine_rate()
1064 	req->rate = calc_rate(parent_rate, 0, 0, 0, div);  in clk_byte2_determine_rate()
1069 static int clk_byte2_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_byte2_set_rate()  argument
1079 	div = DIV_ROUND_UP((2 * parent_rate), rate) - 1;  in clk_byte2_set_rate()
1099 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_byte2_set_rate_and_parent()  argument
1102 	return clk_byte2_set_rate(hw, rate, parent_rate);  in clk_byte2_set_rate_and_parent()
1133 		request = (req->rate * frac->den) / frac->num;  in clk_pixel_determine_rate()
1141 		req->rate = (src_rate * frac->num) / frac->den;  in clk_pixel_determine_rate()
1148 static int clk_pixel_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_pixel_set_rate()  argument
1171 		request = (rate * frac->den) / frac->num;  in clk_pixel_set_rate()
1190 static int clk_pixel_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,  in clk_pixel_set_rate_and_parent()  argument
1193 	return clk_pixel_set_rate(hw, rate, parent_rate);  in clk_pixel_set_rate_and_parent()
1229 	if (req->rate == clk_hw_get_rate(xo)) {  in clk_gfx3d_determine_rate()
1237 	parent_req.rate = req->rate * mux_div;  in clk_gfx3d_determine_rate()
1239 	/* This has to be a fixed rate PLL */  in clk_gfx3d_determine_rate()
1242 	if (parent_req.rate == p0_rate) {  in clk_gfx3d_determine_rate()
1243 		req->rate = req->best_parent_rate = p0_rate;  in clk_gfx3d_determine_rate()
1249 		/* Are we going back to a previously used rate? */  in clk_gfx3d_determine_rate()
1250 		if (clk_hw_get_rate(p2) == parent_req.rate)  in clk_gfx3d_determine_rate()
1273 	req->rate = req->best_parent_rate = parent_req.rate;  in clk_gfx3d_determine_rate()
1274 	req->rate /= mux_div;  in clk_gfx3d_determine_rate()
1279 static int clk_gfx3d_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,  in clk_gfx3d_set_rate_and_parent()  argument
1299 static int clk_gfx3d_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_gfx3d_set_rate()  argument
1369 static int __clk_rcg2_shared_set_rate(struct clk_hw *hw, unsigned long rate,  in __clk_rcg2_shared_set_rate()  argument
1378 		f = qcom_find_freq_floor(rcg->freq_tbl, rate);  in __clk_rcg2_shared_set_rate()
1381 		f = qcom_find_freq(rcg->freq_tbl, rate);  in __clk_rcg2_shared_set_rate()
1398 static int clk_rcg2_shared_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_rcg2_shared_set_rate()  argument
1401 	return __clk_rcg2_shared_set_rate(hw, rate, parent_rate, CEIL);  in clk_rcg2_shared_set_rate()
1405 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_rcg2_shared_set_rate_and_parent()  argument
1407 	return __clk_rcg2_shared_set_rate(hw, rate, parent_rate, CEIL);  in clk_rcg2_shared_set_rate_and_parent()
1410 static int clk_rcg2_shared_set_floor_rate(struct clk_hw *hw, unsigned long rate,  in clk_rcg2_shared_set_floor_rate()  argument
1413 	return __clk_rcg2_shared_set_rate(hw, rate, parent_rate, FLOOR);  in clk_rcg2_shared_set_floor_rate()
1417 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_rcg2_shared_set_floor_rate_and_parent()  argument
1419 	return __clk_rcg2_shared_set_rate(hw, rate, parent_rate, FLOOR);  in clk_rcg2_shared_set_floor_rate_and_parent()
1435 	/* Write back the stored configuration corresponding to current rate */  in clk_rcg2_shared_enable()
1753 	 * Rate changes with consumer writing a register in  in clk_rcg2_enable_dfs()
1779 static int clk_rcg2_dp_set_rate(struct clk_hw *hw, unsigned long rate,  in clk_rcg2_dp_set_rate()  argument
1789 	rational_best_approximation(parent_rate, rate,  in clk_rcg2_dp_set_rate()
1824 		unsigned long rate, unsigned long parent_rate, u8 index)  in clk_rcg2_dp_set_rate_and_parent()  argument
1826 	return clk_rcg2_dp_set_rate(hw, rate, parent_rate);  in clk_rcg2_dp_set_rate_and_parent()
1836 	/* Parent rate is a fixed phy link rate */  in clk_rcg2_dp_determine_rate()
1837 	rational_best_approximation(req->best_parent_rate, req->rate,  in clk_rcg2_dp_determine_rate()
1846 	req->rate = tmp;  in clk_rcg2_dp_determine_rate()