Lines Matching +full:freq +full:- +full:table +full:- +full:hz
1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2011-2013 Samsung India Software Operations
19 #include "ufshcd-pltfrm.h"
29 struct device *dev = hba->dev; in ufshcd_parse_clock_info()
30 struct device_node *np = dev->of_node; in ufshcd_parse_clock_info()
40 cnt = of_property_count_strings(np, "clock-names"); in ufshcd_parse_clock_info()
41 if (!cnt || (cnt == -EINVAL)) { in ufshcd_parse_clock_info()
53 if (!of_get_property(np, "freq-table-hz", &len)) { in ufshcd_parse_clock_info()
54 dev_info(dev, "freq-table-hz property not specified\n"); in ufshcd_parse_clock_info()
63 dev_err(dev, "%s len mismatch\n", "freq-table-hz"); in ufshcd_parse_clock_info()
64 ret = -EINVAL; in ufshcd_parse_clock_info()
71 ret = -ENOMEM; in ufshcd_parse_clock_info()
75 ret = of_property_read_u32_array(np, "freq-table-hz", in ufshcd_parse_clock_info()
77 if (ret && (ret != -EINVAL)) { in ufshcd_parse_clock_info()
79 "freq-table-hz", ret); in ufshcd_parse_clock_info()
84 ret = of_property_read_string_index(np, "clock-names", i/2, in ufshcd_parse_clock_info()
91 ret = -ENOMEM; in ufshcd_parse_clock_info()
95 clki->min_freq = clkfreq[i]; in ufshcd_parse_clock_info()
96 clki->max_freq = clkfreq[i+1]; in ufshcd_parse_clock_info()
97 clki->name = devm_kstrdup(dev, name, GFP_KERNEL); in ufshcd_parse_clock_info()
98 if (!clki->name) { in ufshcd_parse_clock_info()
99 ret = -ENOMEM; in ufshcd_parse_clock_info()
104 clki->keep_link_active = true; in ufshcd_parse_clock_info()
105 dev_dbg(dev, "%s: min %u max %u name %s\n", "freq-table-hz", in ufshcd_parse_clock_info()
106 clki->min_freq, clki->max_freq, clki->name); in ufshcd_parse_clock_info()
107 list_add_tail(&clki->list, &hba->clk_list_head); in ufshcd_parse_clock_info()
130 struct device_node *np = dev->of_node; in ufshcd_populate_vreg()
137 snprintf(prop_name, MAX_PROP_SIZE, "%s-supply", name); in ufshcd_populate_vreg()
146 return -ENOMEM; in ufshcd_populate_vreg()
148 vreg->name = devm_kstrdup(dev, name, GFP_KERNEL); in ufshcd_populate_vreg()
149 if (!vreg->name) in ufshcd_populate_vreg()
150 return -ENOMEM; in ufshcd_populate_vreg()
153 vreg->max_uA = 0; in ufshcd_populate_vreg()
157 snprintf(prop_name, MAX_PROP_SIZE, "%s-max-microamp", name); in ufshcd_populate_vreg()
158 if (of_property_read_u32(np, prop_name, &vreg->max_uA)) { in ufshcd_populate_vreg()
160 vreg->max_uA = 0; in ufshcd_populate_vreg()
169 * ufshcd_parse_regulator_info - get regulator info from device tree
173 * If any of the supplies are not defined it is assumed that they are always-on
182 struct device *dev = hba->dev; in ufshcd_parse_regulator_info()
183 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_parse_regulator_info()
185 err = ufshcd_populate_vreg(dev, "vdd-hba", &info->vdd_hba, true); in ufshcd_parse_regulator_info()
189 err = ufshcd_populate_vreg(dev, "vcc", &info->vcc, false); in ufshcd_parse_regulator_info()
193 err = ufshcd_populate_vreg(dev, "vccq", &info->vccq, false); in ufshcd_parse_regulator_info()
197 err = ufshcd_populate_vreg(dev, "vccq2", &info->vccq2, false); in ufshcd_parse_regulator_info()
204 struct device *dev = hba->dev; in ufshcd_init_lanes_per_dir()
207 ret = of_property_read_u32(dev->of_node, "lanes-per-direction", in ufshcd_init_lanes_per_dir()
208 &hba->lanes_per_direction); in ufshcd_init_lanes_per_dir()
210 dev_dbg(hba->dev, in ufshcd_init_lanes_per_dir()
211 "%s: failed to read lanes-per-direction, ret=%d\n", in ufshcd_init_lanes_per_dir()
213 hba->lanes_per_direction = UFSHCD_DEFAULT_LANES_PER_DIRECTION; in ufshcd_init_lanes_per_dir()
218 * ufshcd_parse_clock_min_max_freq - Parse MIN and MAX clocks freq
224 * Returns 0 for success and non-zero for failure
228 struct list_head *head = &hba->clk_list_head; in ufshcd_parse_clock_min_max_freq()
231 unsigned long freq; in ufshcd_parse_clock_min_max_freq() local
235 if (!clki->name) in ufshcd_parse_clock_min_max_freq()
238 clki->clk = devm_clk_get(hba->dev, clki->name); in ufshcd_parse_clock_min_max_freq()
239 if (IS_ERR(clki->clk)) in ufshcd_parse_clock_min_max_freq()
242 /* Find Max Freq */ in ufshcd_parse_clock_min_max_freq()
243 freq = ULONG_MAX; in ufshcd_parse_clock_min_max_freq()
244 opp = dev_pm_opp_find_freq_floor_indexed(hba->dev, &freq, idx); in ufshcd_parse_clock_min_max_freq()
246 dev_err(hba->dev, "Failed to find OPP for MAX frequency\n"); in ufshcd_parse_clock_min_max_freq()
249 clki->max_freq = dev_pm_opp_get_freq_indexed(opp, idx); in ufshcd_parse_clock_min_max_freq()
252 /* Find Min Freq */ in ufshcd_parse_clock_min_max_freq()
253 freq = 0; in ufshcd_parse_clock_min_max_freq()
254 opp = dev_pm_opp_find_freq_ceil_indexed(hba->dev, &freq, idx); in ufshcd_parse_clock_min_max_freq()
256 dev_err(hba->dev, "Failed to find OPP for MIN frequency\n"); in ufshcd_parse_clock_min_max_freq()
259 clki->min_freq = dev_pm_opp_get_freq_indexed(opp, idx++); in ufshcd_parse_clock_min_max_freq()
268 struct device *dev = hba->dev; in ufshcd_parse_operating_points()
269 struct device_node *np = dev->of_node; in ufshcd_parse_operating_points()
275 if (!of_find_property(np, "operating-points-v2", NULL)) in ufshcd_parse_operating_points()
278 if (of_find_property(np, "freq-table-hz", NULL)) { in ufshcd_parse_operating_points()
279 dev_err(dev, "%s: operating-points and freq-table-hz are incompatible\n", in ufshcd_parse_operating_points()
281 return -EINVAL; in ufshcd_parse_operating_points()
284 cnt = of_property_count_strings(np, "clock-names"); in ufshcd_parse_operating_points()
286 dev_err(dev, "%s: Missing clock-names\n", __func__); in ufshcd_parse_operating_points()
287 return -ENODEV; in ufshcd_parse_operating_points()
293 return -ENOMEM; in ufshcd_parse_operating_points()
300 ret = of_property_read_string_index(np, "clock-names", i, in ufshcd_parse_operating_points()
307 return -ENOMEM; in ufshcd_parse_operating_points()
309 clki->name = devm_kstrdup(dev, clk_names[i], GFP_KERNEL); in ufshcd_parse_operating_points()
310 if (!clki->name) in ufshcd_parse_operating_points()
311 return -ENOMEM; in ufshcd_parse_operating_points()
314 clki->keep_link_active = true; in ufshcd_parse_operating_points()
316 list_add_tail(&clki->list, &hba->clk_list_head); in ufshcd_parse_operating_points()
328 dev_err(dev, "Failed to add OPP table: %d\n", ret); in ufshcd_parse_operating_points()
336 hba->use_pm_opp = true; in ufshcd_parse_operating_points()
342 * ufshcd_negotiate_pwr_params - find power mode settings that are supported by
348 * Return: 0 on success, non-zero value on failure.
359 if (dev_max->pwr_rx == FAST_MODE) in ufshcd_negotiate_pwr_params()
362 if (host_params->desired_working_mode == UFS_HS_MODE) { in ufshcd_negotiate_pwr_params()
364 min_host_gear = min_t(u32, host_params->hs_rx_gear, in ufshcd_negotiate_pwr_params()
365 host_params->hs_tx_gear); in ufshcd_negotiate_pwr_params()
367 min_host_gear = min_t(u32, host_params->pwm_rx_gear, in ufshcd_negotiate_pwr_params()
368 host_params->pwm_tx_gear); in ufshcd_negotiate_pwr_params()
372 * device doesn't support HS but host_params->desired_working_mode is HS, in ufshcd_negotiate_pwr_params()
378 return -ENOTSUPP; in ufshcd_negotiate_pwr_params()
382 * since host_params->desired_working_mode is also HS in ufshcd_negotiate_pwr_params()
386 agreed_pwr->pwr_rx = host_params->rx_pwr_hs; in ufshcd_negotiate_pwr_params()
387 agreed_pwr->pwr_tx = agreed_pwr->pwr_rx; in ufshcd_negotiate_pwr_params()
390 * here host_params->desired_working_mode is PWM. in ufshcd_negotiate_pwr_params()
392 * in both cases host_params->desired_working_mode will in ufshcd_negotiate_pwr_params()
395 agreed_pwr->pwr_rx = host_params->rx_pwr_pwm; in ufshcd_negotiate_pwr_params()
396 agreed_pwr->pwr_tx = agreed_pwr->pwr_rx; in ufshcd_negotiate_pwr_params()
404 agreed_pwr->lane_tx = min_t(u32, dev_max->lane_tx, in ufshcd_negotiate_pwr_params()
405 host_params->tx_lanes); in ufshcd_negotiate_pwr_params()
406 agreed_pwr->lane_rx = min_t(u32, dev_max->lane_rx, in ufshcd_negotiate_pwr_params()
407 host_params->rx_lanes); in ufshcd_negotiate_pwr_params()
410 min_dev_gear = min_t(u32, dev_max->gear_rx, dev_max->gear_tx); in ufshcd_negotiate_pwr_params()
413 * if both device capabilities and vendor pre-defined preferences are in ufshcd_negotiate_pwr_params()
422 agreed_pwr->gear_rx = in ufshcd_negotiate_pwr_params()
425 agreed_pwr->gear_rx = min_dev_gear; in ufshcd_negotiate_pwr_params()
427 agreed_pwr->gear_rx = min_host_gear; in ufshcd_negotiate_pwr_params()
429 agreed_pwr->gear_tx = agreed_pwr->gear_rx; in ufshcd_negotiate_pwr_params()
431 agreed_pwr->hs_rate = host_params->hs_rate; in ufshcd_negotiate_pwr_params()
457 * ufshcd_pltfrm_init - probe routine of the driver
461 * Return: 0 on success, non-zero value on failure.
469 struct device *dev = &pdev->dev; in ufshcd_pltfrm_init()
489 hba->vops = vops; in ufshcd_pltfrm_init()