^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2018 MediaTek Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Author: Owen Chen <owen.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/mt6765-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 img_cg_regs = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) .set_ofs = 0x4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) .clr_ofs = 0x8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) .sta_ofs = 0x0,
^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) #define GATE_IMG(_id, _name, _parent, _shift) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) .id = _id, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) .name = _name, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .parent_name = _parent, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .regs = &img_cg_regs, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) .shift = _shift, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) .ops = &mtk_clk_gate_ops_setclr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static const struct mtk_gate img_clks[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) GATE_IMG(CLK_IMG_LARB2, "img_larb2", "mm_ck", 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) GATE_IMG(CLK_IMG_DIP, "img_dip", "mm_ck", 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) GATE_IMG(CLK_IMG_FDVT, "img_fdvt", "mm_ck", 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) GATE_IMG(CLK_IMG_DPE, "img_dpe", "mm_ck", 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) GATE_IMG(CLK_IMG_RSC, "img_rsc", "mm_ck", 5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static int clk_mt6765_img_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct clk_onecell_data *clk_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct device_node *node = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks), clk_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) if (r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) pr_err("%s(): could not register clock provider: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) __func__, r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) return r;
^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 const struct of_device_id of_match_clk_mt6765_img[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) { .compatible = "mediatek,mt6765-imgsys", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static struct platform_driver clk_mt6765_img_drv = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .probe = clk_mt6765_img_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .name = "clk-mt6765-img",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .of_match_table = of_match_clk_mt6765_img,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) builtin_platform_driver(clk_mt6765_img_drv);