Lines Matching refs:tegra
94 struct tegra_clk_emc *tegra; in emc_recalc_rate() local
97 tegra = container_of(hw, struct tegra_clk_emc, hw); in emc_recalc_rate()
105 val = readl(tegra->clk_regs + CLK_SOURCE_EMC); in emc_recalc_rate()
118 struct tegra_clk_emc *tegra; in emc_determine_rate() local
123 tegra = container_of(hw, struct tegra_clk_emc, hw); in emc_determine_rate()
125 for (k = 0; k < tegra->num_timings; k++) { in emc_determine_rate()
126 if (tegra->timings[k].ram_code == ram_code) in emc_determine_rate()
130 for (t = k; t < tegra->num_timings; t++) { in emc_determine_rate()
131 if (tegra->timings[t].ram_code != ram_code) in emc_determine_rate()
136 timing = tegra->timings + i; in emc_determine_rate()
143 req->rate = tegra->timings[i - 1].rate; in emc_determine_rate()
165 struct tegra_clk_emc *tegra; in emc_get_parent() local
168 tegra = container_of(hw, struct tegra_clk_emc, hw); in emc_get_parent()
170 val = readl(tegra->clk_regs + CLK_SOURCE_EMC); in emc_get_parent()
176 static struct tegra_emc *emc_ensure_emc_driver(struct tegra_clk_emc *tegra) in emc_ensure_emc_driver() argument
180 if (tegra->emc) in emc_ensure_emc_driver()
181 return tegra->emc; in emc_ensure_emc_driver()
183 if (!tegra->prepare_timing_change || !tegra->complete_timing_change) in emc_ensure_emc_driver()
186 if (!tegra->emc_node) in emc_ensure_emc_driver()
189 pdev = of_find_device_by_node(tegra->emc_node); in emc_ensure_emc_driver()
196 of_node_put(tegra->emc_node); in emc_ensure_emc_driver()
197 tegra->emc_node = NULL; in emc_ensure_emc_driver()
199 tegra->emc = platform_get_drvdata(pdev); in emc_ensure_emc_driver()
200 if (!tegra->emc) { in emc_ensure_emc_driver()
206 return tegra->emc; in emc_ensure_emc_driver()
209 static int emc_set_timing(struct tegra_clk_emc *tegra, in emc_set_timing() argument
216 struct tegra_emc *emc = emc_ensure_emc_driver(tegra); in emc_set_timing()
224 if (emc_get_parent(&tegra->hw) == timing->parent_index && in emc_set_timing()
233 tegra->changing_timing = true; in emc_set_timing()
252 err = tegra->prepare_timing_change(emc, timing->rate); in emc_set_timing()
258 spin_lock_irqsave(tegra->lock, flags); in emc_set_timing()
260 car_value = readl(tegra->clk_regs + CLK_SOURCE_EMC); in emc_set_timing()
268 writel(car_value, tegra->clk_regs + CLK_SOURCE_EMC); in emc_set_timing()
270 spin_unlock_irqrestore(tegra->lock, flags); in emc_set_timing()
272 tegra->complete_timing_change(emc, timing->rate); in emc_set_timing()
274 clk_hw_reparent(&tegra->hw, __clk_get_hw(timing->parent)); in emc_set_timing()
275 clk_disable_unprepare(tegra->prev_parent); in emc_set_timing()
277 tegra->prev_parent = timing->parent; in emc_set_timing()
278 tegra->changing_timing = false; in emc_set_timing()
289 static struct emc_timing *get_backup_timing(struct tegra_clk_emc *tegra, in get_backup_timing() argument
296 for (i = timing_index+1; i < tegra->num_timings; i++) { in get_backup_timing()
297 timing = tegra->timings + i; in get_backup_timing()
303 tegra->timings[timing_index].parent_index]) in get_backup_timing()
308 timing = tegra->timings + i; in get_backup_timing()
314 tegra->timings[timing_index].parent_index]) in get_backup_timing()
324 struct tegra_clk_emc *tegra; in emc_set_rate() local
329 tegra = container_of(hw, struct tegra_clk_emc, hw); in emc_set_rate()
339 if (tegra->changing_timing) in emc_set_rate()
342 for (i = 0; i < tegra->num_timings; i++) { in emc_set_rate()
343 if (tegra->timings[i].rate == rate && in emc_set_rate()
344 tegra->timings[i].ram_code == ram_code) { in emc_set_rate()
345 timing = tegra->timings + i; in emc_set_rate()
365 backup_timing = get_backup_timing(tegra, i); in emc_set_rate()
374 err = emc_set_timing(tegra, backup_timing); in emc_set_rate()
381 return emc_set_timing(tegra, timing); in emc_set_rate()
386 static int load_one_timing_from_dt(struct tegra_clk_emc *tegra, in load_one_timing_from_dt() argument
442 static int load_timings_from_dt(struct tegra_clk_emc *tegra, in load_timings_from_dt() argument
452 size = (tegra->num_timings + child_count) * sizeof(struct emc_timing); in load_timings_from_dt()
454 tegra->timings = krealloc(tegra->timings, size, GFP_KERNEL); in load_timings_from_dt()
455 if (!tegra->timings) in load_timings_from_dt()
458 timings_ptr = tegra->timings + tegra->num_timings; in load_timings_from_dt()
459 tegra->num_timings += child_count; in load_timings_from_dt()
464 err = load_one_timing_from_dt(tegra, timing, child); in load_timings_from_dt()
467 kfree(tegra->timings); in load_timings_from_dt()
490 struct tegra_clk_emc *tegra; in tegra124_clk_register_emc() local
497 tegra = kcalloc(1, sizeof(*tegra), GFP_KERNEL); in tegra124_clk_register_emc()
498 if (!tegra) in tegra124_clk_register_emc()
501 tegra->clk_regs = base; in tegra124_clk_register_emc()
502 tegra->lock = lock; in tegra124_clk_register_emc()
504 tegra->num_timings = 0; in tegra124_clk_register_emc()
516 err = load_timings_from_dt(tegra, node, node_ram_code); in tegra124_clk_register_emc()
519 kfree(tegra); in tegra124_clk_register_emc()
524 if (tegra->num_timings == 0) in tegra124_clk_register_emc()
527 tegra->emc_node = of_parse_phandle(np, in tegra124_clk_register_emc()
529 if (!tegra->emc_node) in tegra124_clk_register_emc()
538 tegra->hw.init = &init; in tegra124_clk_register_emc()
540 clk = clk_register(NULL, &tegra->hw); in tegra124_clk_register_emc()
544 tegra->prev_parent = clk_hw_get_parent_by_index( in tegra124_clk_register_emc()
545 &tegra->hw, emc_get_parent(&tegra->hw))->clk; in tegra124_clk_register_emc()
546 tegra->changing_timing = false; in tegra124_clk_register_emc()
558 struct tegra_clk_emc *tegra; in tegra124_clk_set_emc_callbacks() local
563 tegra = container_of(hw, struct tegra_clk_emc, hw); in tegra124_clk_set_emc_callbacks()
565 tegra->prepare_timing_change = prep_cb; in tegra124_clk_set_emc_callbacks()
566 tegra->complete_timing_change = complete_cb; in tegra124_clk_set_emc_callbacks()
573 struct tegra_clk_emc *tegra = container_of(hw, struct tegra_clk_emc, hw); in tegra124_clk_emc_driver_available() local
575 return tegra->prepare_timing_change && tegra->complete_timing_change; in tegra124_clk_emc_driver_available()