drivers/mailbox/tegra-hsp.c

1 // SPDX-License-Identifier: GPL-2.0
9 #include <mailbox-uclass.h>
10 #include <dt-bindings/mailbox/tegra186-hsp.h>
41 	return (uint32_t *)(thsp->regs + thsp->db_base + (db_id * 0x100) + reg);  in tegra_hsp_reg()
67 		return -EINVAL;  in tegra_hsp_db_id()
76 	if (args->args_count != 2) {  in tegra_hsp_of_xlate()
77 		debug("Invaild args_count: %d\n", args->args_count);  in tegra_hsp_of_xlate()
78 		return -EINVAL;  in tegra_hsp_of_xlate()
81 	chan->id = (args->args[0] << 16) | args->args[1];  in tegra_hsp_of_xlate()
92 	db_id = tegra_hsp_db_id(chan->id);  in tegra_hsp_request()
95 		return -EINVAL;  in tegra_hsp_request()
110 	struct tegra_hsp *thsp = dev_get_priv(chan->dev);  in tegra_hsp_send()
115 	db_id = tegra_hsp_db_id(chan->id);  in tegra_hsp_send()
123 	struct tegra_hsp *thsp = dev_get_priv(chan->dev);  in tegra_hsp_recv()
130 	if (!(val & BIT(chan->id)))  in tegra_hsp_recv()
131 		return -ENODATA;  in tegra_hsp_recv()
133 	tegra_hsp_writel(thsp, BIT(chan->id), db_id, TEGRA_HSP_DB_REG_RAW);  in tegra_hsp_recv()
153 	thsp->regs = devfdt_get_addr(dev);  in tegra_hsp_probe()
154 	if (thsp->regs == FDT_ADDR_T_NONE)  in tegra_hsp_probe()
155 		return -ENODEV;  in tegra_hsp_probe()
157 	val = readl(thsp->regs + TEGRA_HSP_INT_DIMENSIONING);  in tegra_hsp_probe()
165 	thsp->db_base = (1 + (nr_sm >> 1) + nr_ss + nr_as) << 16;  in tegra_hsp_probe()
171 	{ .compatible = "nvidia,tegra186-hsp" },
184 	.name = "tegra-hsp",