1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
9 #include <linux/io.h>
13 #include <dt-bindings/power/meson-a1-power.h>
14 #include <dt-bindings/power/amlogic,c3-pwrc.h>
15 #include <dt-bindings/power/meson-s4-power.h>
16 #include <linux/arm-smccc.h>
30 	struct meson_secure_pwrc_domain *domains;  member
44 	struct meson_secure_pwrc_domain_desc *domains;  member
51 	if (meson_sm_call(pwrc_domain->pwrc->fw, SM_A1_PWRC_GET, &is_off,  in pwrc_secure_is_off()
52 			  pwrc_domain->index, 0, 0, 0, 0) < 0)  in pwrc_secure_is_off()
64 	if (meson_sm_call(pwrc_domain->pwrc->fw, SM_A1_PWRC_SET, NULL,  in meson_secure_pwrc_off()
65 			  pwrc_domain->index, PWRC_OFF, 0, 0, 0) < 0) {  in meson_secure_pwrc_off()
67 		ret = -EINVAL;  in meson_secure_pwrc_off()
79 	if (meson_sm_call(pwrc_domain->pwrc->fw, SM_A1_PWRC_SET, NULL,  in meson_secure_pwrc_on()
80 			  pwrc_domain->index, PWRC_ON, 0, 0, 0) < 0) {  in meson_secure_pwrc_on()
82 		ret = -EINVAL;  in meson_secure_pwrc_on()
118 	/* NIC is for the Arm NIC-400 interconnect, and should be always on */
159 	match = of_device_get_match_data(&pdev->dev);  in meson_secure_pwrc_probe()
161 		dev_err(&pdev->dev, "failed to get match data\n");  in meson_secure_pwrc_probe()
162 		return -ENODEV;  in meson_secure_pwrc_probe()
165 	sm_np = of_find_compatible_node(NULL, NULL, "amlogic,meson-gxbb-sm");  in meson_secure_pwrc_probe()
167 		dev_err(&pdev->dev, "no secure-monitor node\n");  in meson_secure_pwrc_probe()
168 		return -ENODEV;  in meson_secure_pwrc_probe()
171 	pwrc = devm_kzalloc(&pdev->dev, sizeof(*pwrc), GFP_KERNEL);  in meson_secure_pwrc_probe()
174 		return -ENOMEM;  in meson_secure_pwrc_probe()
177 	pwrc->fw = meson_sm_get(sm_np);  in meson_secure_pwrc_probe()
179 	if (!pwrc->fw)  in meson_secure_pwrc_probe()
180 		return -EPROBE_DEFER;  in meson_secure_pwrc_probe()
182 	pwrc->xlate.domains = devm_kcalloc(&pdev->dev, match->count,  in meson_secure_pwrc_probe()
183 					   sizeof(*pwrc->xlate.domains),  in meson_secure_pwrc_probe()
185 	if (!pwrc->xlate.domains)  in meson_secure_pwrc_probe()
186 		return -ENOMEM;  in meson_secure_pwrc_probe()
188 	pwrc->domains = devm_kcalloc(&pdev->dev, match->count,  in meson_secure_pwrc_probe()
189 				     sizeof(*pwrc->domains), GFP_KERNEL);  in meson_secure_pwrc_probe()
190 	if (!pwrc->domains)  in meson_secure_pwrc_probe()
191 		return -ENOMEM;  in meson_secure_pwrc_probe()
193 	pwrc->xlate.num_domains = match->count;  in meson_secure_pwrc_probe()
196 	for (i = 0 ; i < match->count ; ++i) {  in meson_secure_pwrc_probe()
197 		struct meson_secure_pwrc_domain *dom = &pwrc->domains[i];  in meson_secure_pwrc_probe()
199 		if (!match->domains[i].name)  in meson_secure_pwrc_probe()
202 		dom->pwrc = pwrc;  in meson_secure_pwrc_probe()
203 		dom->index = match->domains[i].index;  in meson_secure_pwrc_probe()
204 		dom->base.name = match->domains[i].name;  in meson_secure_pwrc_probe()
205 		dom->base.flags = match->domains[i].flags;  in meson_secure_pwrc_probe()
206 		dom->base.power_on = meson_secure_pwrc_on;  in meson_secure_pwrc_probe()
207 		dom->base.power_off = meson_secure_pwrc_off;  in meson_secure_pwrc_probe()
209 		pm_genpd_init(&dom->base, NULL, match->domains[i].is_off(dom));  in meson_secure_pwrc_probe()
211 		pwrc->xlate.domains[i] = &dom->base;  in meson_secure_pwrc_probe()
214 	return of_genpd_add_provider_onecell(pdev->dev.of_node, &pwrc->xlate);  in meson_secure_pwrc_probe()
218 	.domains = a1_pwrc_domains,
223 	.domains = c3_pwrc_domains,
228 	.domains = s4_pwrc_domains,
234 		.compatible = "amlogic,meson-a1-pwrc",
238 		.compatible = "amlogic,c3-pwrc",
242 		.compatible = "amlogic,meson-s4-pwrc",