clk/mediatek/clk-mt6779-cam.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 /*
0003  * Copyright (c) 2019 MediaTek Inc.
0004  * Author: Wendell Lin <wendell.lin@mediatek.com>
0005  */
0006
0007 #include <linux/module.h>
0008 #include <linux/clk-provider.h>
0009 #include <linux/platform_device.h>
0010 #include <dt-bindings/clock/mt6779-clk.h>
0011
0012 #include "clk-mtk.h"
0013 #include "clk-gate.h"
0014
0015 static const struct mtk_gate_regs cam_cg_regs = {
0016     .set_ofs = 0x0004,
0017     .clr_ofs = 0x0008,
0018     .sta_ofs = 0x0000,
0019 };
0020
0021 #define GATE_CAM(_id, _name, _parent, _shift)           \
0022     GATE_MTK(_id, _name, _parent, &cam_cg_regs, _shift, \
0023         &mtk_clk_gate_ops_setclr)
0024
0025 static const struct mtk_gate cam_clks[] = {
0026     GATE_CAM(CLK_CAM_LARB10, "camsys_larb10", "cam_sel", 0),
0027     GATE_CAM(CLK_CAM_DFP_VAD, "camsys_dfp_vad", "cam_sel", 1),
0028     GATE_CAM(CLK_CAM_LARB11, "camsys_larb11", "cam_sel", 2),
0029     GATE_CAM(CLK_CAM_LARB9, "camsys_larb9", "cam_sel", 3),
0030     GATE_CAM(CLK_CAM_CAM, "camsys_cam", "cam_sel", 6),
0031     GATE_CAM(CLK_CAM_CAMTG, "camsys_camtg", "cam_sel", 7),
0032     GATE_CAM(CLK_CAM_SENINF, "camsys_seninf", "cam_sel", 8),
0033     GATE_CAM(CLK_CAM_CAMSV0, "camsys_camsv0", "cam_sel", 9),
0034     GATE_CAM(CLK_CAM_CAMSV1, "camsys_camsv1", "cam_sel", 10),
0035     GATE_CAM(CLK_CAM_CAMSV2, "camsys_camsv2", "cam_sel", 11),
0036     GATE_CAM(CLK_CAM_CAMSV3, "camsys_camsv3", "cam_sel", 12),
0037     GATE_CAM(CLK_CAM_CCU, "camsys_ccu", "cam_sel", 13),
0038     GATE_CAM(CLK_CAM_FAKE_ENG, "camsys_fake_eng", "cam_sel", 14),
0039 };
0040
0041 static const struct of_device_id of_match_clk_mt6779_cam[] = {
0042     { .compatible = "mediatek,mt6779-camsys", },
0043     {}
0044 };
0045
0046 static int clk_mt6779_cam_probe(struct platform_device *pdev)
0047 {
0048     struct clk_hw_onecell_data *clk_data;
0049     struct device_node *node = pdev->dev.of_node;
0050
0051     clk_data = mtk_alloc_clk_data(CLK_CAM_NR_CLK);
0052
0053     mtk_clk_register_gates(node, cam_clks, ARRAY_SIZE(cam_clks),
0054                    clk_data);
0055
0056     return of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
0057 }
0058
0059 static struct platform_driver clk_mt6779_cam_drv = {
0060     .probe = clk_mt6779_cam_probe,
0061     .driver = {
0062         .name = "clk-mt6779-cam",
0063         .of_match_table = of_match_clk_mt6779_cam,
0064     },
0065 };
0066
0067 module_platform_driver(clk_mt6779_cam_drv);
0068 MODULE_LICENSE("GPL");