drivers/clk/mediatek/clk-mt6779-cam.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2019 MediaTek Inc.
   4  * Author: Wendell Lin <wendell.lin@mediatek.com>
   5  */
   6
   7 #include <linux/module.h>
   8 #include <linux/clk-provider.h>
   9 #include <linux/platform_device.h>
  10 #include <dt-bindings/clock/mt6779-clk.h>
  11
  12 #include "clk-mtk.h"
  13 #include "clk-gate.h"
  14
  15 static const struct mtk_gate_regs cam_cg_regs = {
  16         .set_ofs = 0x0004,
  17         .clr_ofs = 0x0008,
  18         .sta_ofs = 0x0000,
  19 };
  20
  21 #define GATE_CAM(_id, _name, _parent, _shift)                   \
  22         GATE_MTK(_id, _name, _parent, &cam_cg_regs, _shift,     \
  23                 &mtk_clk_gate_ops_setclr)
  24
  25 static const struct mtk_gate cam_clks[] = {
  26         GATE_CAM(CLK_CAM_LARB10, "camsys_larb10", "cam_sel", 0),
  27         GATE_CAM(CLK_CAM_DFP_VAD, "camsys_dfp_vad", "cam_sel", 1),
  28         GATE_CAM(CLK_CAM_LARB11, "camsys_larb11", "cam_sel", 2),
  29         GATE_CAM(CLK_CAM_LARB9, "camsys_larb9", "cam_sel", 3),
  30         GATE_CAM(CLK_CAM_CAM, "camsys_cam", "cam_sel", 6),
  31         GATE_CAM(CLK_CAM_CAMTG, "camsys_camtg", "cam_sel", 7),
  32         GATE_CAM(CLK_CAM_SENINF, "camsys_seninf", "cam_sel", 8),
  33         GATE_CAM(CLK_CAM_CAMSV0, "camsys_camsv0", "cam_sel", 9),
  34         GATE_CAM(CLK_CAM_CAMSV1, "camsys_camsv1", "cam_sel", 10),
  35         GATE_CAM(CLK_CAM_CAMSV2, "camsys_camsv2", "cam_sel", 11),
  36         GATE_CAM(CLK_CAM_CAMSV3, "camsys_camsv3", "cam_sel", 12),
  37         GATE_CAM(CLK_CAM_CCU, "camsys_ccu", "cam_sel", 13),
  38         GATE_CAM(CLK_CAM_FAKE_ENG, "camsys_fake_eng", "cam_sel", 14),
  39 };
  40
  41 static const struct of_device_id of_match_clk_mt6779_cam[] = {
  42         { .compatible = "mediatek,mt6779-camsys", },
  43         {}
  44 };
  45
  46 static int clk_mt6779_cam_probe(struct platform_device *pdev)
  47 {
  48         struct clk_hw_onecell_data *clk_data;
  49         struct device_node *node = pdev->dev.of_node;
  50
  51         clk_data = mtk_alloc_clk_data(CLK_CAM_NR_CLK);
  52
  53         mtk_clk_register_gates(node, cam_clks, ARRAY_SIZE(cam_clks),
  54                                clk_data);
  55
  56         return of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
  57 }
  58
  59 static struct platform_driver clk_mt6779_cam_drv = {
  60         .probe = clk_mt6779_cam_probe,
  61         .driver = {
  62                 .name = "clk-mt6779-cam",
  63                 .of_match_table = of_match_clk_mt6779_cam,
  64         },
  65 };
  66
  67 module_platform_driver(clk_mt6779_cam_drv);
  68 MODULE_LICENSE("GPL");