1 // SPDX-License-Identifier: GPL-2.0
47 	/* numbers of violation index */
64 	reg = ctx->infra_base + ctx->data->regs_ofs->vio_sta_offset;  in clear_vio_status()
66 	for (i = 0; i < VIO_MOD_TO_REG_IND(ctx->data->vio_idx_num) - 1; i++)  in clear_vio_status()
69 	writel(GENMASK(VIO_MOD_TO_REG_OFF(ctx->data->vio_idx_num) - 1, 0),  in clear_vio_status()
79 	reg = ctx->infra_base + ctx->data->regs_ofs->vio_mask_offset;  in mask_module_irq()
86 	for (i = 0; i < VIO_MOD_TO_REG_IND(ctx->data->vio_idx_num) - 1; i++)  in mask_module_irq()
91 		val |= GENMASK(VIO_MOD_TO_REG_OFF(ctx->data->vio_idx_num) - 1,  in mask_module_irq()
94 		val &= ~GENMASK(VIO_MOD_TO_REG_OFF(ctx->data->vio_idx_num) - 1,  in mask_module_irq()
103  * devapc_sync_vio_dbg - do "shift" mechansim" to get full violation information.
104  *                       shift mechanism is depends on devapc hardware design.
105  *                       Mediatek devapc set multiple slaves as a group.
108  *                       Driver should do shift mechansim to sync full violation
121 	pd_vio_shift_sta_reg = ctx->infra_base +  in devapc_sync_vio_dbg()
122 			       ctx->data->regs_ofs->vio_shift_sta_offset;  in devapc_sync_vio_dbg()
123 	pd_vio_shift_sel_reg = ctx->infra_base +  in devapc_sync_vio_dbg()
124 			       ctx->data->regs_ofs->vio_shift_sel_offset;  in devapc_sync_vio_dbg()
125 	pd_vio_shift_con_reg = ctx->infra_base +  in devapc_sync_vio_dbg()
126 			       ctx->data->regs_ofs->vio_shift_con_offset;  in devapc_sync_vio_dbg()
128 	/* Find the minimum shift group which has violation */  in devapc_sync_vio_dbg()
135 	/* Assign the group to sync */  in devapc_sync_vio_dbg()
144 		dev_err(ctx->dev, "%s: Shift violation info failed\n", __func__);  in devapc_sync_vio_dbg()
158  * devapc_extract_vio_dbg - extract full violation information after doing
159  *                          shift mechanism.
167 	vio_dbg0_reg = ctx->infra_base + ctx->data->regs_ofs->vio_dbg0_offset;  in devapc_extract_vio_dbg()
168 	vio_dbg1_reg = ctx->infra_base + ctx->data->regs_ofs->vio_dbg1_offset;  in devapc_extract_vio_dbg()
175 		dev_info(ctx->dev, "Write Violation\n");  in devapc_extract_vio_dbg()
177 		dev_info(ctx->dev, "Read Violation\n");  in devapc_extract_vio_dbg()
179 	dev_info(ctx->dev, "Bus ID:0x%x, Dom ID:0x%x, Vio Addr:0x%x\n",  in devapc_extract_vio_dbg()
185  * devapc_violation_irq - the devapc Interrupt Service Routine (ISR) will dump
202  * start_devapc - unmask slave's irq to start receiving devapc violation.
206 	writel(BIT(31), ctx->infra_base + ctx->data->regs_ofs->apc_con_offset);  in start_devapc()
212  * stop_devapc - mask slave's irq to stop service.
218 	writel(BIT(2), ctx->infra_base + ctx->data->regs_ofs->apc_con_offset);  in stop_devapc()
244 		.compatible = "mediatek,mt6779-devapc",
247 		.compatible = "mediatek,mt8186-devapc",
256 	struct device_node *node = pdev->dev.of_node;  in mtk_devapc_probe()
262 		return -ENODEV;  in mtk_devapc_probe()
264 	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);  in mtk_devapc_probe()
266 		return -ENOMEM;  in mtk_devapc_probe()
268 	ctx->data = of_device_get_match_data(&pdev->dev);  in mtk_devapc_probe()
269 	ctx->dev = &pdev->dev;  in mtk_devapc_probe()
271 	ctx->infra_base = of_iomap(node, 0);  in mtk_devapc_probe()
272 	if (!ctx->infra_base)  in mtk_devapc_probe()
273 		return -EINVAL;  in mtk_devapc_probe()
277 		return -EINVAL;  in mtk_devapc_probe()
279 	ctx->infra_clk = devm_clk_get_enabled(&pdev->dev, "devapc-infra-clock");  in mtk_devapc_probe()
280 	if (IS_ERR(ctx->infra_clk))  in mtk_devapc_probe()
281 		return -EINVAL;  in mtk_devapc_probe()
283 	ret = devm_request_irq(&pdev->dev, devapc_irq, devapc_violation_irq,  in mtk_devapc_probe()
306 		.name = "mtk-devapc",