drivers/clk/mediatek/clk-mt2701-mm.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2014 MediaTek Inc.
   4  * Author: Shunli Wang <shunli.wang@mediatek.com>
   5  */
   6
   7 #include <linux/clk-provider.h>
   8 #include <linux/platform_device.h>
   9
  10 #include "clk-mtk.h"
  11 #include "clk-gate.h"
  12
  13 #include <dt-bindings/clock/mt2701-clk.h>
  14
  15 static const struct mtk_gate_regs disp0_cg_regs = {
  16         .set_ofs = 0x0104,
  17         .clr_ofs = 0x0108,
  18         .sta_ofs = 0x0100,
  19 };
  20
  21 static const struct mtk_gate_regs disp1_cg_regs = {
  22         .set_ofs = 0x0114,
  23         .clr_ofs = 0x0118,
  24         .sta_ofs = 0x0110,
  25 };
  26
  27 #define GATE_DISP0(_id, _name, _parent, _shift) {       \
  28                 .id = _id,                              \
  29                 .name = _name,                          \
  30                 .parent_name = _parent,                 \
  31                 .regs = &disp0_cg_regs,                 \
  32                 .shift = _shift,                        \
  33                 .ops = &mtk_clk_gate_ops_setclr,        \
  34         }
  35
  36 #define GATE_DISP1(_id, _name, _parent, _shift) {       \
  37                 .id = _id,                              \
  38                 .name = _name,                          \
  39                 .parent_name = _parent,                 \
  40                 .regs = &disp1_cg_regs,                 \
  41                 .shift = _shift,                        \
  42                 .ops = &mtk_clk_gate_ops_setclr,        \
  43         }
  44
  45 static const struct mtk_gate mm_clks[] = {
  46         GATE_DISP0(CLK_MM_SMI_COMMON, "mm_smi_comm", "mm_sel", 0),
  47         GATE_DISP0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
  48         GATE_DISP0(CLK_MM_CMDQ, "mm_cmdq", "mm_sel", 2),
  49         GATE_DISP0(CLK_MM_MUTEX, "mm_mutex", "mm_sel", 3),
  50         GATE_DISP0(CLK_MM_DISP_COLOR, "mm_disp_color", "mm_sel", 4),
  51         GATE_DISP0(CLK_MM_DISP_BLS, "mm_disp_bls", "mm_sel", 5),
  52         GATE_DISP0(CLK_MM_DISP_WDMA, "mm_disp_wdma", "mm_sel", 6),
  53         GATE_DISP0(CLK_MM_DISP_RDMA, "mm_disp_rdma", "mm_sel", 7),
  54         GATE_DISP0(CLK_MM_DISP_OVL, "mm_disp_ovl", "mm_sel", 8),
  55         GATE_DISP0(CLK_MM_MDP_TDSHP, "mm_mdp_tdshp", "mm_sel", 9),
  56         GATE_DISP0(CLK_MM_MDP_WROT, "mm_mdp_wrot", "mm_sel", 10),
  57         GATE_DISP0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11),
  58         GATE_DISP0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 12),
  59         GATE_DISP0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 13),
  60         GATE_DISP0(CLK_MM_MDP_RDMA, "mm_mdp_rdma", "mm_sel", 14),
  61         GATE_DISP0(CLK_MM_MDP_BLS_26M, "mm_mdp_bls_26m", "pwm_sel", 15),
  62         GATE_DISP0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 16),
  63         GATE_DISP0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 17),
  64         GATE_DISP0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 18),
  65         GATE_DISP0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19),
  66         GATE_DISP0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 20),
  67         GATE_DISP1(CLK_MM_DSI_ENGINE, "mm_dsi_eng", "mm_sel", 0),
  68         GATE_DISP1(CLK_MM_DSI_DIG, "mm_dsi_dig", "dsi0_lntc_dsi", 1),
  69         GATE_DISP1(CLK_MM_DPI_DIGL, "mm_dpi_digl", "dpi0_sel", 2),
  70         GATE_DISP1(CLK_MM_DPI_ENGINE, "mm_dpi_eng", "mm_sel", 3),
  71         GATE_DISP1(CLK_MM_DPI1_DIGL, "mm_dpi1_digl", "dpi1_sel", 4),
  72         GATE_DISP1(CLK_MM_DPI1_ENGINE, "mm_dpi1_eng", "mm_sel", 5),
  73         GATE_DISP1(CLK_MM_TVE_OUTPUT, "mm_tve_output", "tve_sel", 6),
  74         GATE_DISP1(CLK_MM_TVE_INPUT, "mm_tve_input", "dpi0_sel", 7),
  75         GATE_DISP1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi1_sel", 8),
  76         GATE_DISP1(CLK_MM_HDMI_PLL, "mm_hdmi_pll", "hdmi_sel", 9),
  77         GATE_DISP1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll_sel", 10),
  78         GATE_DISP1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll_sel", 11),
  79         GATE_DISP1(CLK_MM_TVE_FMM, "mm_tve_fmm", "mm_sel", 14),
  80 };
  81
  82 static int clk_mt2701_mm_probe(struct platform_device *pdev)
  83 {
  84         struct device *dev = &pdev->dev;
  85         struct device_node *node = dev->parent->of_node;
  86         struct clk_onecell_data *clk_data;
  87         int r;
  88
  89         clk_data = mtk_alloc_clk_data(CLK_MM_NR);
  90
  91         mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks),
  92                                                 clk_data);
  93
  94         r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  95         if (r)
  96                 dev_err(&pdev->dev,
  97                         "could not register clock provider: %s: %d\n",
  98                         pdev->name, r);
  99
 100         return r;
 101 }
 102
 103 static struct platform_driver clk_mt2701_mm_drv = {
 104         .probe = clk_mt2701_mm_probe,
 105         .driver = {
 106                 .name = "clk-mt2701-mm",
 107         },
 108 };
 109
 110 builtin_platform_driver(clk_mt2701_mm_drv);