1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. */
14 #include <linux/soc/qcom/smd-rpm.h>
16 #include <dt-bindings/power/qcom-rpmpd.h>
21  * RPMPD_X is X encoded as a little-endian, lower-case, ASCII string */
108 	struct qcom_smd_rpm *rpm;  member
121 /* mdm9607 RPM Power Domains */
142 /* msm8939 RPM Power Domains */
168 /* msm8916 RPM Power Domains */
188 /* msm8976 RPM Power Domains */
210 /* msm8994 RPM Power domains */
235 /* msm8996 RPM Power domains */
259 /* msm8998 RPM Power domains */
291 /* qcs404 RPM Power domains */
317 /* sdm660 RPM Power domains */
349 /* sm4250/6115 RPM Power domains */
377 	{ .compatible = "qcom,mdm9607-rpmpd", .data = &mdm9607_desc },
378 	{ .compatible = "qcom,msm8916-rpmpd", .data = &msm8916_desc },
379 	{ .compatible = "qcom,msm8939-rpmpd", .data = &msm8939_desc },
380 	{ .compatible = "qcom,msm8976-rpmpd", .data = &msm8976_desc },
381 	{ .compatible = "qcom,msm8994-rpmpd", .data = &msm8994_desc },
382 	{ .compatible = "qcom,msm8996-rpmpd", .data = &msm8996_desc },
383 	{ .compatible = "qcom,msm8998-rpmpd", .data = &msm8998_desc },
384 	{ .compatible = "qcom,qcs404-rpmpd", .data = &qcs404_desc },
385 	{ .compatible = "qcom,sdm660-rpmpd", .data = &sdm660_desc },
386 	{ .compatible = "qcom,sm6115-rpmpd", .data = &sm6115_desc },
399 	return qcom_rpm_smd_write(pd->rpm, QCOM_SMD_RPM_ACTIVE_STATE,  in rpmpd_send_enable()
400 				  pd->res_type, pd->res_id, &req, sizeof(req));  in rpmpd_send_enable()
406 		.key = pd->key,  in rpmpd_send_corner()
411 	return qcom_rpm_smd_write(pd->rpm, state, pd->res_type, pd->res_id,  in rpmpd_send_corner()
420 	if (pd->active_only)  in to_active_sleep()
429 	struct rpmpd *peer = pd->peer;  in rpmpd_aggregate_corner()
434 	to_active_sleep(pd, pd->corner, &this_active_corner, &this_sleep_corner);  in rpmpd_aggregate_corner()
436 	if (peer && peer->enabled)  in rpmpd_aggregate_corner()
437 		to_active_sleep(peer, peer->corner, &peer_active_corner,  in rpmpd_aggregate_corner()
462 	pd->enabled = true;  in rpmpd_power_on()
464 	if (pd->corner)  in rpmpd_power_on()
482 		pd->enabled = false;  in rpmpd_power_off()
495 	if (state > pd->max_state)  in rpmpd_set_performance()
496 		state = pd->max_state;  in rpmpd_set_performance()
500 	pd->corner = state;  in rpmpd_set_performance()
503 	if (!pd->enabled && pd->key != KEY_FLOOR_CORNER &&  in rpmpd_set_performance()
504 	    pd->key != KEY_FLOOR_LEVEL)  in rpmpd_set_performance()
526 	struct qcom_smd_rpm *rpm;  in rpmpd_probe()  local
530 	rpm = dev_get_drvdata(pdev->dev.parent);  in rpmpd_probe()
531 	if (!rpm) {  in rpmpd_probe()
532 		dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n");  in rpmpd_probe()
533 		return -ENODEV;  in rpmpd_probe()
536 	desc = of_device_get_match_data(&pdev->dev);  in rpmpd_probe()
538 		return -EINVAL;  in rpmpd_probe()
540 	rpmpds = desc->rpmpds;  in rpmpd_probe()
541 	num = desc->num_pds;  in rpmpd_probe()
543 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);  in rpmpd_probe()
545 		return -ENOMEM;  in rpmpd_probe()
547 	data->domains = devm_kcalloc(&pdev->dev, num, sizeof(*data->domains),  in rpmpd_probe()
549 	data->num_domains = num;  in rpmpd_probe()
553 			dev_warn(&pdev->dev, "rpmpds[] with empty entry at index=%d\n",  in rpmpd_probe()
558 		rpmpds[i]->rpm = rpm;  in rpmpd_probe()
559 		rpmpds[i]->max_state = desc->max_state;  in rpmpd_probe()
560 		rpmpds[i]->pd.power_off = rpmpd_power_off;  in rpmpd_probe()
561 		rpmpds[i]->pd.power_on = rpmpd_power_on;  in rpmpd_probe()
562 		rpmpds[i]->pd.set_performance_state = rpmpd_set_performance;  in rpmpd_probe()
563 		rpmpds[i]->pd.opp_to_performance_state = rpmpd_get_performance;  in rpmpd_probe()
564 		pm_genpd_init(&rpmpds[i]->pd, NULL, true);  in rpmpd_probe()
566 		data->domains[i] = &rpmpds[i]->pd;  in rpmpd_probe()
569 	return of_genpd_add_provider_onecell(pdev->dev.of_node, data);  in rpmpd_probe()
574 		.name = "qcom-rpmpd",
587 MODULE_DESCRIPTION("Qualcomm Technologies, Inc. RPM Power Domain Driver");