^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2017 MediaTek Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Author: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/clk-provider.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "clk-mtk.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "clk-gate.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <dt-bindings/clock/mt6797-clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) static const struct mtk_gate_regs vdec0_cg_regs = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) .set_ofs = 0x0000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) .clr_ofs = 0x0004,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) .sta_ofs = 0x0000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static const struct mtk_gate_regs vdec1_cg_regs = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) .set_ofs = 0x0008,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) .clr_ofs = 0x000c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .sta_ofs = 0x0008,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define GATE_VDEC0(_id, _name, _parent, _shift) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) .id = _id, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) .name = _name, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .parent_name = _parent, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .regs = &vdec0_cg_regs, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .shift = _shift, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) .ops = &mtk_clk_gate_ops_setclr_inv, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define GATE_VDEC1(_id, _name, _parent, _shift) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) .id = _id, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) .name = _name, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .parent_name = _parent, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) .regs = &vdec1_cg_regs, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .shift = _shift, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .ops = &mtk_clk_gate_ops_setclr_inv, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static const struct mtk_gate vdec_clks[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) GATE_VDEC0(CLK_VDEC_CKEN_ENG, "vdec_cken_eng", "vdec_sel", 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) GATE_VDEC0(CLK_VDEC_ACTIVE, "vdec_active", "vdec_sel", 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) GATE_VDEC0(CLK_VDEC_CKEN, "vdec_cken", "vdec_sel", 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) GATE_VDEC1(CLK_VDEC_LARB1_CKEN, "vdec_larb1_cken", "mm_sel", 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static const struct of_device_id of_match_clk_mt6797_vdec[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) { .compatible = "mediatek,mt6797-vdecsys", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static int clk_mt6797_vdec_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct clk_onecell_data *clk_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct device_node *node = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) clk_data = mtk_alloc_clk_data(CLK_VDEC_NR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) mtk_clk_register_gates(node, vdec_clks, ARRAY_SIZE(vdec_clks),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) clk_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) dev_err(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) "could not register clock provider: %s: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) pdev->name, r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static struct platform_driver clk_mt6797_vdec_drv = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .probe = clk_mt6797_vdec_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .name = "clk-mt6797-vdec",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .of_match_table = of_match_clk_mt6797_vdec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) builtin_platform_driver(clk_mt6797_vdec_drv);