Lines Matching full:tcu
3 * JZ47xx SoCs TCU clocks driver
10 #include <linux/mfd/ingenic-tcu.h>
16 #include <dt-bindings/clock/ingenic,tcu.h>
22 #define pr_fmt(fmt) "ingenic-tcu-clk: " fmt
46 struct ingenic_tcu *tcu; member
69 struct ingenic_tcu *tcu = tcu_clk->tcu; in ingenic_tcu_enable() local
71 regmap_write(tcu->map, TCU_REG_TSCR, BIT(info->gate_bit)); in ingenic_tcu_enable()
80 struct ingenic_tcu *tcu = tcu_clk->tcu; in ingenic_tcu_disable() local
82 regmap_write(tcu->map, TCU_REG_TSSR, BIT(info->gate_bit)); in ingenic_tcu_disable()
91 regmap_read(tcu_clk->tcu->map, TCU_REG_TSR, &value); in ingenic_tcu_is_enabled()
100 struct ingenic_tcu *tcu = tcu_clk->tcu; in ingenic_tcu_enable_regs() local
108 regmap_write(tcu->map, TCU_REG_TSCR, BIT(info->gate_bit)); in ingenic_tcu_enable_regs()
117 struct ingenic_tcu *tcu = tcu_clk->tcu; in ingenic_tcu_disable_regs() local
119 regmap_write(tcu->map, TCU_REG_TSSR, BIT(info->gate_bit)); in ingenic_tcu_disable_regs()
129 ret = regmap_read(tcu_clk->tcu->map, info->tcsr_reg, &val); in ingenic_tcu_get_parent()
144 ret = regmap_update_bits(tcu_clk->tcu->map, info->tcsr_reg, in ingenic_tcu_set_parent()
162 ret = regmap_read(tcu_clk->tcu->map, info->tcsr_reg, &prescale); in ingenic_tcu_recalc_rate()
209 ret = regmap_update_bits(tcu_clk->tcu->map, info->tcsr_reg, in ingenic_tcu_set_rate()
268 static int __init ingenic_tcu_register_clock(struct ingenic_tcu *tcu, in ingenic_tcu_register_clock() argument
283 tcu_clk->tcu = tcu; in ingenic_tcu_register_clock()
287 regmap_update_bits(tcu->map, info->tcsr_reg, 0xffff, BIT(parent)); in ingenic_tcu_register_clock()
321 .has_ost = false, /* X1000 has OST, but it not belong TCU */
327 { .compatible = "ingenic,jz4740-tcu", .data = &jz4740_soc_info, },
328 { .compatible = "ingenic,jz4725b-tcu", .data = &jz4725b_soc_info, },
329 { .compatible = "ingenic,jz4760-tcu", .data = &jz4770_soc_info, },
330 { .compatible = "ingenic,jz4770-tcu", .data = &jz4770_soc_info, },
331 { .compatible = "ingenic,x1000-tcu", .data = &x1000_soc_info, },
338 struct ingenic_tcu *tcu; in ingenic_tcu_probe() local
347 tcu = kzalloc(sizeof(*tcu), GFP_KERNEL); in ingenic_tcu_probe()
348 if (!tcu) in ingenic_tcu_probe()
351 tcu->map = map; in ingenic_tcu_probe()
352 tcu->soc_info = id->data; in ingenic_tcu_probe()
354 if (tcu->soc_info->has_tcu_clk) { in ingenic_tcu_probe()
355 tcu->clk = of_clk_get_by_name(np, "tcu"); in ingenic_tcu_probe()
356 if (IS_ERR(tcu->clk)) { in ingenic_tcu_probe()
357 ret = PTR_ERR(tcu->clk); in ingenic_tcu_probe()
361 * TCU clock because this driver (incorrectly) didn't in ingenic_tcu_probe()
366 if (tcu->soc_info->allow_missing_tcu_clk && ret == -EINVAL) { in ingenic_tcu_probe()
367 pr_warn("TCU clock missing from device tree, please update your device tree\n"); in ingenic_tcu_probe()
368 tcu->clk = NULL; in ingenic_tcu_probe()
370 pr_crit("Cannot get TCU clock from device tree\n"); in ingenic_tcu_probe()
374 ret = clk_prepare_enable(tcu->clk); in ingenic_tcu_probe()
376 pr_crit("Unable to enable TCU clock\n"); in ingenic_tcu_probe()
382 tcu->clocks = kzalloc(struct_size(tcu->clocks, hws, TCU_CLK_COUNT), in ingenic_tcu_probe()
384 if (!tcu->clocks) { in ingenic_tcu_probe()
389 tcu->clocks->num = TCU_CLK_COUNT; in ingenic_tcu_probe()
391 for (i = 0; i < tcu->soc_info->num_channels; i++) { in ingenic_tcu_probe()
392 ret = ingenic_tcu_register_clock(tcu, i, TCU_PARENT_EXT, in ingenic_tcu_probe()
394 tcu->clocks); in ingenic_tcu_probe()
402 * We set EXT as the default parent clock for all the TCU clocks in ingenic_tcu_probe()
408 ret = ingenic_tcu_register_clock(tcu, TCU_CLK_WDT, TCU_PARENT_RTC, in ingenic_tcu_probe()
410 tcu->clocks); in ingenic_tcu_probe()
416 if (tcu->soc_info->has_ost) { in ingenic_tcu_probe()
417 ret = ingenic_tcu_register_clock(tcu, TCU_CLK_OST, in ingenic_tcu_probe()
420 tcu->clocks); in ingenic_tcu_probe()
427 ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, tcu->clocks); in ingenic_tcu_probe()
433 ingenic_tcu = tcu; in ingenic_tcu_probe()
438 if (tcu->soc_info->has_ost) in ingenic_tcu_probe()
439 clk_hw_unregister(tcu->clocks->hws[i + 1]); in ingenic_tcu_probe()
441 clk_hw_unregister(tcu->clocks->hws[i]); in ingenic_tcu_probe()
443 for (i = 0; i < tcu->clocks->num; i++) in ingenic_tcu_probe()
444 if (tcu->clocks->hws[i]) in ingenic_tcu_probe()
445 clk_hw_unregister(tcu->clocks->hws[i]); in ingenic_tcu_probe()
446 kfree(tcu->clocks); in ingenic_tcu_probe()
448 if (tcu->clk) in ingenic_tcu_probe()
449 clk_disable_unprepare(tcu->clk); in ingenic_tcu_probe()
451 if (tcu->clk) in ingenic_tcu_probe()
452 clk_put(tcu->clk); in ingenic_tcu_probe()
454 kfree(tcu); in ingenic_tcu_probe()
460 struct ingenic_tcu *tcu = ingenic_tcu; in tcu_pm_suspend() local
462 if (tcu->clk) in tcu_pm_suspend()
463 clk_disable(tcu->clk); in tcu_pm_suspend()
470 struct ingenic_tcu *tcu = ingenic_tcu; in tcu_pm_resume() local
472 if (tcu->clk) in tcu_pm_resume()
473 clk_enable(tcu->clk); in tcu_pm_resume()
486 pr_crit("Failed to initialize TCU clocks: %d\n", ret); in ingenic_tcu_init()
492 CLK_OF_DECLARE_DRIVER(jz4740_cgu, "ingenic,jz4740-tcu", ingenic_tcu_init);
493 CLK_OF_DECLARE_DRIVER(jz4725b_cgu, "ingenic,jz4725b-tcu", ingenic_tcu_init);
494 CLK_OF_DECLARE_DRIVER(jz4760_cgu, "ingenic,jz4760-tcu", ingenic_tcu_init);
495 CLK_OF_DECLARE_DRIVER(jz4770_cgu, "ingenic,jz4770-tcu", ingenic_tcu_init);
496 CLK_OF_DECLARE_DRIVER(x1000_cgu, "ingenic,x1000-tcu", ingenic_tcu_init);