123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109 |
- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * Copyright (C) 2022 Alibaba Group Holding Limited.
- */
- #include <dt-bindings/clock/light-dspsys.h>
- #include <linux/clk.h>
- #include <linux/err.h>
- #include <linux/init.h>
- #include <linux/io.h>
- #include <linux/module.h>
- #include <linux/mfd/syscon.h>
- #include <linux/of.h>
- #include <linux/of_device.h>
- #include <linux/of_address.h>
- #include <linux/platform_device.h>
- #include <linux/types.h>
- #include "clk-gate.h"
- #include "../clk.h"
- static struct clk *gates[LIGHT_CLKGEN_DSPSYS_CLK_END];
- static struct clk_onecell_data clk_gate_data;
- static int light_dspsys_clk_probe(struct platform_device *pdev)
- {
- struct regmap *dspsys_regmap, *tee_dspsys_regmap;
- struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
- int ret;
- dspsys_regmap = syscon_regmap_lookup_by_phandle(np, "dspsys-regmap");
- if (IS_ERR(dspsys_regmap)) {
- dev_err(&pdev->dev, "cannot find regmap for dsp system register\n");
- return PTR_ERR(dspsys_regmap);
- }
- tee_dspsys_regmap = syscon_regmap_lookup_by_phandle(np, "tee-dspsys-regmap");
- if (IS_ERR(tee_dspsys_regmap)) {
- dev_warn(&pdev->dev, "cannot find regmap for tee dsp system register\n");
- tee_dspsys_regmap = NULL;
- }
- gates[CLKGEN_DSP0_PCLK] = thead_gate_clk_register("clkgen_dsp0_pclk", NULL, dspsys_regmap,
- 0x24, 0, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_DSP1_PCLK] = thead_gate_clk_register("clkgen_dsp1_pclk", NULL, dspsys_regmap,
- 0x24, 1, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_DSP1_CCLK] = thead_gate_clk_register("clkgen_dsp1_cclk", NULL, dspsys_regmap,
- 0x24, 2, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_DSP0_CCLK] = thead_gate_clk_register("clkgen_dsp0_cclk", NULL, dspsys_regmap,
- 0x24, 3, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_X2X_DSP2_ACLK_S] = thead_gate_clk_register("clkgen_x2x_dsp2_aclk_s", NULL, dspsys_regmap,
- 0x24, 4, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_X2X_DSP0_ACLK_S] = thead_gate_clk_register("clkgen_x2x_dsp0_aclk_s", NULL, dspsys_regmap,
- 0x24, 5, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_X2X_X4_DSPSLV_DSP1_ACLK_M] = thead_gate_clk_register("clkgen_x2x_x4_dspslv_dsp1_aclk_m",
- NULL, dspsys_regmap, 0x24, 6, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_X2X_X4_DSPSLV_DSP0_ACLK_M] = thead_gate_clk_register("clkgen_x2x_x4_dspslv_dsp0_aclk_m",
- NULL, dspsys_regmap, 0x24, 7, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_AXI4_DSPSYS_SLV_ACLK] = thead_gate_clk_register("clkgen_axi4_dspsys_slv_aclk", NULL, dspsys_regmap,
- 0x24, 20, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_AXI4_DSPSYS_SLV_PCLK] = thead_gate_clk_register("clkgen_axi4_dspsys_slv_pclk", NULL, dspsys_regmap,
- 0x24, 21, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_AXI4_DSPSYS_ACLK] = thead_gate_clk_register("clkgen_axi4_dspsys_aclk", NULL, dspsys_regmap,
- 0x24, 23, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_AXI4_DSPSYS_PCLK] = thead_gate_clk_register("clkgen_axi4_dspsys_pclk", NULL, dspsys_regmap,
- 0x24, 24, GATE_NOT_SHARED, NULL, dev);
- if (tee_dspsys_regmap) {
- gates[CLKGEN_IOPMP_DSP1_PCLK] = thead_gate_clk_register("clkgen_iopmp_dsp1_pclk", NULL, tee_dspsys_regmap,
- 0x24, 25, GATE_NOT_SHARED, NULL, dev);
- gates[CLKGEN_IOPMP_DSP0_PCLK] = thead_gate_clk_register("clkgen_iopmp_dsp0_pclk", NULL, tee_dspsys_regmap,
- 0x24, 26, GATE_NOT_SHARED, NULL, dev);
- }
- clk_gate_data.clks = gates;
- clk_gate_data.clk_num = ARRAY_SIZE(gates);
- ret = of_clk_add_provider(np, of_clk_src_onecell_get, &clk_gate_data);
- if (ret < 0) {
- dev_err(dev, "failed to register gate clks for light dspsys\n");
- goto unregister_clks;
- }
- dev_info(dev, "succeed to register dspsys gate clock provider\n");
- return 0;
- unregister_clks:
- thead_unregister_clocks(gates, ARRAY_SIZE(gates));
- return ret;
- }
- static const struct of_device_id dspsys_clk_gate_of_match[] = {
- { .compatible = "thead,dspsys-gate-controller" },
- { /* sentinel */ },
- };
- MODULE_DEVICE_TABLE(of, dspsys_clk_gate_of_match);
- static struct platform_driver light_dspsys_clk_driver = {
- .probe = light_dspsys_clk_probe,
- .driver = {
- .name = "dspsys-clk-gate-provider",
- .of_match_table = of_match_ptr(dspsys_clk_gate_of_match),
- },
- };
- module_platform_driver(light_dspsys_clk_driver);
- MODULE_AUTHOR("wei.liu <lw312886@linux.alibaba.com>");
- MODULE_DESCRIPTION("Thead Light Fullmask dspsys clock gate provider");
- MODULE_LICENSE("GPL v2");
|