1 // SPDX-License-Identifier: GPL-2.0+
4  * Copyright 2017-2018 NXP
10  * single global power domain and implement the ->attach|detach_dev()
12  * From within the ->attach_dev(), we could get the OF node for
13  * the device that is being attached and then parse the power-domain
18  * Additionally, we need to implement the ->stop() and ->start()
20  * rather than using the above ->power_on|off() callbacks.
23  * 1. The ->attach_dev() of power domain infrastructure still does
33  *    behavior changed if removing ->power_on|off() callback and use
34  *    ->start() and ->stop() instead. genpd_dev_pm_attach will only power
47 #include <dt-bindings/firmware/imx/rsrc.h>
110 	{ "audio-pll0", IMX_SC_R_AUDIO_PLL_0, 1, false, 0 },
111 	{ "audio-pll1", IMX_SC_R_AUDIO_PLL_1, 1, false, 0 },
112 	{ "audio-clk-0", IMX_SC_R_AUDIO_CLK_0, 1, false, 0 },
113 	{ "audio-clk-1", IMX_SC_R_AUDIO_CLK_1, 1, false, 0 },
114 	{ "dma0-ch", IMX_SC_R_DMA_0_CH0, 16, true, 0 },
115 	{ "dma1-ch", IMX_SC_R_DMA_1_CH0, 16, true, 0 },
116 	{ "dma2-ch", IMX_SC_R_DMA_2_CH0, 5, true, 0 },
131 	{ "dsp-ram", IMX_SC_R_DSP_RAM, 1, false, 0 },
139 	{ "lcd0-pwm", IMX_SC_R_LCD_0_PWM_0, 1, true, 0 },
146 	{ "vpu-pid", IMX_SC_R_VPU_PID0, 8, true, 0 },
147 	{ "vpu-dec0", IMX_SC_R_VPU_DEC_0, 1, false, 0 },
148 	{ "vpu-enc0", IMX_SC_R_VPU_ENC_0, 1, false, 0 },
151 	{ "gpu0-pid", IMX_SC_R_GPU_0_PID0, 4, true, 0 },
154 	{ "pcie-b", IMX_SC_R_PCIE_B, 1, false, 0 },
155 	{ "serdes-1", IMX_SC_R_SERDES_1, 1, false, 0 },
156 	{ "hsio-gpio", IMX_SC_R_HSIO_GPIO, 1, false, 0 },
160 	{ "mipi0-pwm0", IMX_SC_R_MIPI_0_PWM_0, 1, false, 0 },
161 	{ "mipi0-i2c", IMX_SC_R_MIPI_0_I2C_0, 2, true, 0 },
168 	{ "dc0-pll", IMX_SC_R_DC_0_PLL_0, 2, true, 0 },
171 	{ "cm40-i2c", IMX_SC_R_M4_0_I2C, 1, false, 0 },
172 	{ "cm40-intmux", IMX_SC_R_M4_0_INTMUX, 1, false, 0 },
173 	{ "cm40-pid", IMX_SC_R_M4_0_PID0, 5, true, 0},
174 	{ "cm40-mu-a1", IMX_SC_R_M4_0_MU_1A, 1, false, 0},
175 	{ "cm40-lpuart", IMX_SC_R_M4_0_UART, 1, false, 0},
178 	{ "cm41-i2c", IMX_SC_R_M4_1_I2C, 1, false, 0 },
179 	{ "cm41-intmux", IMX_SC_R_M4_1_INTMUX, 1, false, 0 },
180 	{ "cm41-pid", IMX_SC_R_M4_1_PID0, 5, true, 0},
181 	{ "cm41-mu-a1", IMX_SC_R_M4_1_MU_1A, 1, false, 0},
182 	{ "cm41-lpuart", IMX_SC_R_M4_1_UART, 1, false, 0},
207 	hdr->ver = IMX_SC_RPC_VERSION;  in imx_sc_pd_power()
208 	hdr->svc = IMX_SC_RPC_SVC_PM;  in imx_sc_pd_power()
209 	hdr->func = IMX_SC_PM_FUNC_SET_RESOURCE_POWER_MODE;  in imx_sc_pd_power()
210 	hdr->size = 2;  in imx_sc_pd_power()
212 	msg.resource = pd->rsrc;  in imx_sc_pd_power()
217 		dev_err(&domain->dev, "failed to power %s resource %d ret %d\n",  in imx_sc_pd_power()
218 			power_on ? "up" : "off", pd->rsrc, ret);  in imx_sc_pd_power()
236 	struct generic_pm_domain *domain = ERR_PTR(-ENOENT);  in imx_scu_pd_xlate()
240 	for (i = 0; i < pd_data->num_domains; i++) {  in imx_scu_pd_xlate()
243 		sc_pd = to_imx_sc_pd(pd_data->domains[i]);  in imx_scu_pd_xlate()
244 		if (sc_pd->rsrc == spec->args[0]) {  in imx_scu_pd_xlate()
245 			domain = &sc_pd->pd;  in imx_scu_pd_xlate()
260 	if (!imx_sc_rm_is_resource_owned(pm_ipc_handle, pd_ranges->rsrc + idx))  in imx_scu_add_pm_domain()
265 		return ERR_PTR(-ENOMEM);  in imx_scu_add_pm_domain()
267 	sc_pd->rsrc = pd_ranges->rsrc + idx;  in imx_scu_add_pm_domain()
268 	sc_pd->pd.power_off = imx_sc_pd_power_off;  in imx_scu_add_pm_domain()
269 	sc_pd->pd.power_on = imx_sc_pd_power_on;  in imx_scu_add_pm_domain()
271 	if (pd_ranges->postfix)  in imx_scu_add_pm_domain()
272 		snprintf(sc_pd->name, sizeof(sc_pd->name),  in imx_scu_add_pm_domain()
273 			 "%s%i", pd_ranges->name, pd_ranges->start_from + idx);  in imx_scu_add_pm_domain()
275 		snprintf(sc_pd->name, sizeof(sc_pd->name),  in imx_scu_add_pm_domain()
276 			 "%s", pd_ranges->name);  in imx_scu_add_pm_domain()
278 	sc_pd->pd.name = sc_pd->name;  in imx_scu_add_pm_domain()
280 	if (sc_pd->rsrc >= IMX_SC_R_LAST) {  in imx_scu_add_pm_domain()
282 			 sc_pd->name, sc_pd->rsrc);  in imx_scu_add_pm_domain()
288 	ret = pm_genpd_init(&sc_pd->pd, NULL, true);  in imx_scu_add_pm_domain()
291 			 sc_pd->name, sc_pd->rsrc);  in imx_scu_add_pm_domain()
302 	const struct imx_sc_pd_range *pd_ranges = pd_soc->pd_ranges;  in imx_scu_init_pm_domains()
309 	for (i = 0; i < pd_soc->num_ranges; i++)  in imx_scu_init_pm_domains()
314 		return -ENOMEM;  in imx_scu_init_pm_domains()
318 		return -ENOMEM;  in imx_scu_init_pm_domains()
321 	for (i = 0; i < pd_soc->num_ranges; i++) {  in imx_scu_init_pm_domains()
327 			domains[count++] = &sc_pd->pd;  in imx_scu_init_pm_domains()
328 			dev_dbg(dev, "added power domain %s\n", sc_pd->pd.name);  in imx_scu_init_pm_domains()
332 	pd_data->domains = domains;  in imx_scu_init_pm_domains()
333 	pd_data->num_domains = count;  in imx_scu_init_pm_domains()
334 	pd_data->xlate = imx_scu_pd_xlate;  in imx_scu_init_pm_domains()
336 	of_genpd_add_provider_onecell(dev->of_node, pd_data);  in imx_scu_init_pm_domains()
350 	pd_soc = of_device_get_match_data(&pdev->dev);  in imx_sc_pd_probe()
352 		return -ENODEV;  in imx_sc_pd_probe()
354 	return imx_scu_init_pm_domains(&pdev->dev, pd_soc);  in imx_sc_pd_probe()
358 	{ .compatible = "fsl,imx8qxp-scu-pd", &imx8qxp_scu_pd},
359 	{ .compatible = "fsl,scu-pd", &imx8qxp_scu_pd},
365 		.name = "imx-scu-pd",