1 // SPDX-License-Identifier: GPL-2.0-only
4  * Copyright (c) 2014-2015,2017,2022 Intel Corporation.
15 #include <linux/platform_data/x86/clk-pmc-atom.h>
17 #include <linux/platform_data/x86/simatic-ipc.h>
208 	return readl(pmc->regmap + reg_offset);  in pmc_reg_read()
213 	writel(val, pmc->regmap + reg_offset);  in pmc_reg_write()
220 	if (!pmc->init)  in pmc_atom_read()
221 		return -ENODEV;  in pmc_atom_read()
232 	pr_info("Preparing to enter system sleep state S5\n");  in pmc_power_off()
248 	 * - LPC clock run  in pmc_hw_reg_setup()
249 	 * - GPIO_SUS ored dedicated IRQs  in pmc_hw_reg_setup()
250 	 * - GPIO_SCORE ored dedicated IRQs  in pmc_hw_reg_setup()
251 	 * - GPIO_SUS shared IRQ  in pmc_hw_reg_setup()
252 	 * - GPIO_SCORE shared IRQ  in pmc_hw_reg_setup()
266 		seq_printf(s, "Dev: %-2d - %-32s\tState: %s [%s]\n",  in pmc_dev_state_print()
275 	struct pmc_dev *pmc = s->private;  in pmc_dev_state_show()
276 	const struct pmc_reg_map *m = pmc->map;  in pmc_dev_state_show()
286 	pmc_dev_state_print(s, 0, d3_sts_0, m->d3_sts_0, func_dis, m->func_dis);  in pmc_dev_state_show()
289 	pmc_dev_state_print(s, 1, d3_sts_1, m->d3_sts_1, func_dis_2, m->func_dis_2);  in pmc_dev_state_show()
298 	struct pmc_dev *pmc = s->private;  in pmc_pss_state_show()
299 	const struct pmc_bit_map *map = pmc->map->pss;  in pmc_pss_state_show()
304 		seq_printf(s, "Island: %-2d - %-32s\tState: %s\n",  in pmc_pss_state_show()
315 	struct pmc_dev *pmc = s->private;  in pmc_sleep_tmr_show()
340 	pmc->dbgfs_dir = dir;  in pmc_dbgfs_register()
359 	pr_info("%s: PMC critical clocks quirk enabled\n", d->ident);  in dmi_callback()
385 		/* pmc_plt_clk0 is used for an external HSIC USB HUB */
398 		 * https://www.lex.com.tw/products/embedded-ipc-board/
407 		/* pmc_plt_clk* - are used for ethernet controllers */
433 		return -ENOMEM;  in pmc_setup_clks()
435 	clk_data->base = pmc_regmap; /* offset is added by client */  in pmc_setup_clks()
436 	clk_data->clks = pmc_data->clks;  in pmc_setup_clks()
438 		clk_data->critical = pmc_clk_is_critical;  in pmc_setup_clks()
440 	clkdev = platform_device_register_data(&pdev->dev, "clk-pmc-atom",  in pmc_setup_clks()
476 	const struct pmc_reg_map *m = pmc->map;  in pmc_s2idle_check()
488 	 * Some blocks are not used on lower-featured versions of the SoC and  in pmc_s2idle_check()
491 	if (m->d3_sts_1	== byt_d3_sts_1_map) {  in pmc_s2idle_check()
503 	pmc_dev_state_check(d3_sts_0, m->d3_sts_0, func_dis, m->func_dis, false_pos_sts_0);  in pmc_s2idle_check()
504 	pmc_dev_state_check(d3_sts_1, m->d3_sts_1, func_dis_2, m->func_dis_2, false_pos_sts_1);  in pmc_s2idle_check()
506 	/* Forced-on PMC clocks prevent S0i3 */  in pmc_s2idle_check()
532 	const struct pmc_data *data = (struct pmc_data *)ent->driver_data;  in pmc_setup_dev()
533 	const struct pmc_reg_map *map = data->map;  in pmc_setup_dev()
544 	pci_read_config_dword(pdev, PMC_BASE_ADDR_OFFSET, &pmc->base_addr);  in pmc_setup_dev()
545 	pmc->base_addr &= PMC_BASE_ADDR_MASK;  in pmc_setup_dev()
547 	pmc->regmap = ioremap(pmc->base_addr, PMC_MMIO_REG_LEN);  in pmc_setup_dev()
548 	if (!pmc->regmap) {  in pmc_setup_dev()
549 		dev_err(&pdev->dev, "error: ioremap failed\n");  in pmc_setup_dev()
550 		return -ENOMEM;  in pmc_setup_dev()
553 	pmc->map = map;  in pmc_setup_dev()
560 	/* Register platform clocks - PMC_PLT_CLK [0..5] */  in pmc_setup_dev()
561 	ret = pmc_setup_clks(pdev, pmc->regmap, data);  in pmc_setup_dev()
563 		dev_warn(&pdev->dev, "platform clocks register failed: %d\n",  in pmc_setup_dev()
567 	pmc->init = true;  in pmc_setup_dev()
584 	 * We look for our device - PCU PMC.  in pmc_atom_init()
598 	return -ENODEV;  in pmc_atom_init()