drivers/clk/mediatek/clk-mt8365-mm.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) 2022 MediaTek Inc.
   4  * Copyright (c) 2022 BayLibre, SAS
   5  */
   6
   7 #include <dt-bindings/clock/mediatek,mt8365-clk.h>
   8 #include <linux/clk-provider.h>
   9 #include <linux/platform_device.h>
  10
  11 #include "clk-gate.h"
  12 #include "clk-mtk.h"
  13
  14 static const struct mtk_gate_regs mm0_cg_regs = {
  15         .set_ofs = 0x104,
  16         .clr_ofs = 0x108,
  17         .sta_ofs = 0x100,
  18 };
  19
  20 static const struct mtk_gate_regs mm1_cg_regs = {
  21         .set_ofs = 0x114,
  22         .clr_ofs = 0x118,
  23         .sta_ofs = 0x110,
  24 };
  25
  26 #define GATE_MM0(_id, _name, _parent, _shift) \
  27                 GATE_MTK(_id, _name, _parent, &mm0_cg_regs, _shift, \
  28                          &mtk_clk_gate_ops_setclr)
  29
  30 #define GATE_MM1(_id, _name, _parent, _shift) \
  31                 GATE_MTK(_id, _name, _parent, &mm1_cg_regs, _shift, \
  32                          &mtk_clk_gate_ops_setclr)
  33
  34 static const struct mtk_gate mm_clks[] = {
  35         /* MM0 */
  36         GATE_MM0(CLK_MM_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 0),
  37         GATE_MM0(CLK_MM_MM_MDP_CCORR0, "mm_mdp_ccorr0", "mm_sel", 1),
  38         GATE_MM0(CLK_MM_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 2),
  39         GATE_MM0(CLK_MM_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 3),
  40         GATE_MM0(CLK_MM_MM_MDP_TDSHP0, "mm_mdp_tdshp0", "mm_sel", 4),
  41         GATE_MM0(CLK_MM_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 5),
  42         GATE_MM0(CLK_MM_MM_MDP_WDMA0, "mm_mdp_wdma0", "mm_sel", 6),
  43         GATE_MM0(CLK_MM_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 7),
  44         GATE_MM0(CLK_MM_MM_DISP_OVL0_2L, "mm_disp_ovl0_2l", "mm_sel", 8),
  45         GATE_MM0(CLK_MM_MM_DISP_RSZ0, "mm_disp_rsz0", "mm_sel", 9),
  46         GATE_MM0(CLK_MM_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 10),
  47         GATE_MM0(CLK_MM_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 11),
  48         GATE_MM0(CLK_MM_MM_DISP_COLOR0, "mm_disp_color0", "mm_sel", 12),
  49         GATE_MM0(CLK_MM_MM_DISP_CCORR0, "mm_disp_ccorr0", "mm_sel", 13),
  50         GATE_MM0(CLK_MM_MM_DISP_AAL0, "mm_disp_aal0", "mm_sel", 14),
  51         GATE_MM0(CLK_MM_MM_DISP_GAMMA0, "mm_disp_gamma0", "mm_sel", 15),
  52         GATE_MM0(CLK_MM_MM_DISP_DITHER0, "mm_disp_dither0", "mm_sel", 16),
  53         GATE_MM0(CLK_MM_MM_DSI0, "mm_dsi0", "mm_sel", 17),
  54         GATE_MM0(CLK_MM_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 18),
  55         GATE_MM0(CLK_MM_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 19),
  56         GATE_MM0(CLK_MM_DPI0_DPI0, "mm_dpi0_dpi0", "vpll_dpix", 20),
  57         GATE_MM0(CLK_MM_MM_FAKE, "mm_fake", "mm_sel", 21),
  58         GATE_MM0(CLK_MM_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 22),
  59         GATE_MM0(CLK_MM_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 23),
  60         GATE_MM0(CLK_MM_MM_SMI_COMM0, "mm_smi_comm0", "mm_sel", 24),
  61         GATE_MM0(CLK_MM_MM_SMI_COMM1, "mm_smi_comm1", "mm_sel", 25),
  62         GATE_MM0(CLK_MM_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 26),
  63         GATE_MM0(CLK_MM_MM_SMI_IMG, "mm_smi_img", "mm_sel", 27),
  64         GATE_MM0(CLK_MM_MM_SMI_CAM, "mm_smi_cam", "mm_sel", 28),
  65         GATE_MM0(CLK_MM_IMG_IMG_DL_RELAY, "mm_dl_relay", "mm_sel", 29),
  66         GATE_MM0(CLK_MM_IMG_IMG_DL_ASYNC_TOP, "mm_dl_async_top", "mm_sel", 30),
  67         GATE_MM0(CLK_MM_DSI0_DIG_DSI, "mm_dsi0_dig_dsi", "dsi0_lntc_dsick", 31),
  68         /* MM1 */
  69         GATE_MM1(CLK_MM_26M_HRTWT, "mm_f26m_hrtwt", "clk26m", 0),
  70         GATE_MM1(CLK_MM_MM_DPI0, "mm_dpi0", "mm_sel", 1),
  71         GATE_MM1(CLK_MM_LVDSTX_PXL, "mm_flvdstx_pxl", "vpll_dpix", 2),
  72         GATE_MM1(CLK_MM_LVDSTX_CTS, "mm_flvdstx_cts", "lvdstx_dig_cts", 3),
  73 };
  74
  75 static int clk_mt8365_mm_probe(struct platform_device *pdev)
  76 {
  77         struct device *dev = &pdev->dev;
  78         struct device_node *node = dev->parent->of_node;
  79         struct clk_hw_onecell_data *clk_data;
  80         int ret;
  81
  82         clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK);
  83
  84         ret = mtk_clk_register_gates_with_dev(node, mm_clks,
  85                                               ARRAY_SIZE(mm_clks), clk_data,
  86                                               dev);
  87         if (ret)
  88                 goto err_free_clk_data;
  89
  90         ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
  91         if (ret)
  92                 goto err_unregister_gates;
  93
  94         return 0;
  95
  96 err_unregister_gates:
  97         mtk_clk_unregister_gates(mm_clks, ARRAY_SIZE(mm_clks), clk_data);
  98
  99 err_free_clk_data:
 100         mtk_free_clk_data(clk_data);
 101
 102         return ret;
 103 }
 104
 105 static struct platform_driver clk_mt8365_mm_drv = {
 106         .probe = clk_mt8365_mm_probe,
 107         .driver = {
 108                 .name = "clk-mt8365-mm",
 109         },
 110 };
 111 builtin_platform_driver(clk_mt8365_mm_drv);
 112 MODULE_LICENSE("GPL");