3  * Driver for the Intel Broxton PMC
10  * The PMC (Power Management Controller) running on the ARC processor
13  * turn sends messages between the IA and the PMC.
51  * BIOS does not create an ACPI device for each PMC function, but
73  * intel_pmc_gcr_read64() - Read a 64-bit PMC GCR register
74  * @pmc: PMC device pointer
78  * Reads the 64-bit PMC GCR register at given offset.
82 int intel_pmc_gcr_read64(struct intel_pmc_dev *pmc, u32 offset, u64 *data)  in intel_pmc_gcr_read64()  argument
87 	spin_lock(&pmc->gcr_lock);  in intel_pmc_gcr_read64()
88 	*data = readq(pmc->gcr_mem_base + offset);  in intel_pmc_gcr_read64()
89 	spin_unlock(&pmc->gcr_lock);  in intel_pmc_gcr_read64()
96  * intel_pmc_gcr_update() - Update PMC GCR register bits
97  * @pmc: PMC device pointer
107 int intel_pmc_gcr_update(struct intel_pmc_dev *pmc, u32 offset, u32 mask, u32 val)  in intel_pmc_gcr_update()  argument
114 	spin_lock(&pmc->gcr_lock);  in intel_pmc_gcr_update()
115 	new_val = readl(pmc->gcr_mem_base + offset);  in intel_pmc_gcr_update()
118 	writel(new_val, pmc->gcr_mem_base + offset);  in intel_pmc_gcr_update()
120 	new_val = readl(pmc->gcr_mem_base + offset);  in intel_pmc_gcr_update()
121 	spin_unlock(&pmc->gcr_lock);  in intel_pmc_gcr_update()
130  * @pmc: PMC device pointer
138 int intel_pmc_s0ix_counter_read(struct intel_pmc_dev *pmc, u64 *data)  in intel_pmc_s0ix_counter_read()  argument
142 	spin_lock(&pmc->gcr_lock);  in intel_pmc_s0ix_counter_read()
143 	deep = readq(pmc->gcr_mem_base + PMC_GCR_TELEM_DEEP_S0IX_REG);  in intel_pmc_s0ix_counter_read()
144 	shlw = readq(pmc->gcr_mem_base + PMC_GCR_TELEM_SHLW_S0IX_REG);  in intel_pmc_s0ix_counter_read()
145 	spin_unlock(&pmc->gcr_lock);  in intel_pmc_s0ix_counter_read()
160  * values hold command and subcommand that is send to PMC.
168 	struct intel_pmc_dev *pmc = dev_get_drvdata(dev);  in simplecmd_store()  local
169 	struct intel_scu_ipc_dev *scu = pmc->scu;  in simplecmd_store()
204 	struct intel_pmc_dev *pmc = dev_get_drvdata(dev);  in northpeak_store()  local
205 	struct intel_scu_ipc_dev *scu = pmc->scu;  in northpeak_store()
303 				   struct intel_pmc_dev *pmc,  in intel_pmc_get_resources()  argument
330 	pmc->gcr_mem_base = devm_ioremap_resource(&pdev->dev, &gcr_res);  in intel_pmc_get_resources()
331 	if (IS_ERR(pmc->gcr_mem_base))  in intel_pmc_get_resources()
332 		return PTR_ERR(pmc->gcr_mem_base);  in intel_pmc_get_resources()
387 		pmc->telem_base = res;  in intel_pmc_get_resources()
392 static int intel_pmc_create_devices(struct intel_pmc_dev *pmc)  in intel_pmc_create_devices()  argument
397 		ret = devm_mfd_add_devices(pmc->dev, PLATFORM_DEVID_AUTO, &tco,  in intel_pmc_create_devices()
403 	ret = devm_mfd_add_devices(pmc->dev, PLATFORM_DEVID_AUTO, &punit, 1,  in intel_pmc_create_devices()
408 	if (pmc->telem_base) {  in intel_pmc_create_devices()
409 		ret = devm_mfd_add_devices(pmc->dev, PLATFORM_DEVID_AUTO,  in intel_pmc_create_devices()
410 					   &telem, 1, pmc->telem_base, 0, NULL);  in intel_pmc_create_devices()
425 	struct intel_pmc_dev *pmc;  in intel_pmc_probe()  local
428 	pmc = devm_kzalloc(&pdev->dev, sizeof(*pmc), GFP_KERNEL);  in intel_pmc_probe()
429 	if (!pmc)  in intel_pmc_probe()
432 	pmc->dev = &pdev->dev;  in intel_pmc_probe()
433 	spin_lock_init(&pmc->gcr_lock);  in intel_pmc_probe()
435 	ret = intel_pmc_get_resources(pdev, pmc, &scu_data);  in intel_pmc_probe()
441 	pmc->scu = devm_intel_scu_ipc_register(&pdev->dev, &scu_data);  in intel_pmc_probe()
442 	if (IS_ERR(pmc->scu))  in intel_pmc_probe()
443 		return PTR_ERR(pmc->scu);  in intel_pmc_probe()
445 	platform_set_drvdata(pdev, pmc);  in intel_pmc_probe()
447 	ret = intel_pmc_create_devices(pmc);  in intel_pmc_probe()
449 		dev_err(&pdev->dev, "Failed to create PMC devices\n");  in intel_pmc_probe()
466 MODULE_DESCRIPTION("Intel Broxton PMC driver");