drivers/clk/mediatek/clk-mt8183-ipu_conn.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright (c) 2018 MediaTek Inc.
   4 // Author: Weiyi Lu <weiyi.lu@mediatek.com>
   5
   6 #include <linux/clk-provider.h>
   7 #include <linux/platform_device.h>
   8
   9 #include "clk-mtk.h"
  10 #include "clk-gate.h"
  11
  12 #include <dt-bindings/clock/mt8183-clk.h>
  13
  14 static const struct mtk_gate_regs ipu_conn_cg_regs = {
  15         .set_ofs = 0x4,
  16         .clr_ofs = 0x8,
  17         .sta_ofs = 0x0,
  18 };
  19
  20 static const struct mtk_gate_regs ipu_conn_apb_cg_regs = {
  21         .set_ofs = 0x10,
  22         .clr_ofs = 0x10,
  23         .sta_ofs = 0x10,
  24 };
  25
  26 static const struct mtk_gate_regs ipu_conn_axi_cg_regs = {
  27         .set_ofs = 0x18,
  28         .clr_ofs = 0x18,
  29         .sta_ofs = 0x18,
  30 };
  31
  32 static const struct mtk_gate_regs ipu_conn_axi1_cg_regs = {
  33         .set_ofs = 0x1c,
  34         .clr_ofs = 0x1c,
  35         .sta_ofs = 0x1c,
  36 };
  37
  38 static const struct mtk_gate_regs ipu_conn_axi2_cg_regs = {
  39         .set_ofs = 0x20,
  40         .clr_ofs = 0x20,
  41         .sta_ofs = 0x20,
  42 };
  43
  44 #define GATE_IPU_CONN(_id, _name, _parent, _shift)                      \
  45         GATE_MTK(_id, _name, _parent, &ipu_conn_cg_regs, _shift,        \
  46                 &mtk_clk_gate_ops_setclr)
  47
  48 #define GATE_IPU_CONN_APB(_id, _name, _parent, _shift)                  \
  49         GATE_MTK(_id, _name, _parent, &ipu_conn_apb_cg_regs, _shift,    \
  50                 &mtk_clk_gate_ops_no_setclr)
  51
  52 #define GATE_IPU_CONN_AXI_I(_id, _name, _parent, _shift)                \
  53         GATE_MTK(_id, _name, _parent, &ipu_conn_axi_cg_regs, _shift,    \
  54                 &mtk_clk_gate_ops_no_setclr_inv)
  55
  56 #define GATE_IPU_CONN_AXI1_I(_id, _name, _parent, _shift)               \
  57         GATE_MTK(_id, _name, _parent, &ipu_conn_axi1_cg_regs, _shift,   \
  58                 &mtk_clk_gate_ops_no_setclr_inv)
  59
  60 #define GATE_IPU_CONN_AXI2_I(_id, _name, _parent, _shift)               \
  61         GATE_MTK(_id, _name, _parent, &ipu_conn_axi2_cg_regs, _shift,   \
  62                 &mtk_clk_gate_ops_no_setclr_inv)
  63
  64 static const struct mtk_gate ipu_conn_clks[] = {
  65         GATE_IPU_CONN(CLK_IPU_CONN_IPU,
  66                 "ipu_conn_ipu", "dsp_sel", 0),
  67         GATE_IPU_CONN(CLK_IPU_CONN_AHB,
  68                 "ipu_conn_ahb", "dsp_sel", 1),
  69         GATE_IPU_CONN(CLK_IPU_CONN_AXI,
  70                 "ipu_conn_axi", "dsp_sel", 2),
  71         GATE_IPU_CONN(CLK_IPU_CONN_ISP,
  72                 "ipu_conn_isp", "dsp_sel", 3),
  73         GATE_IPU_CONN(CLK_IPU_CONN_CAM_ADL,
  74                 "ipu_conn_cam_adl", "dsp_sel", 4),
  75         GATE_IPU_CONN(CLK_IPU_CONN_IMG_ADL,
  76                 "ipu_conn_img_adl", "dsp_sel", 5),
  77         GATE_IPU_CONN_APB(CLK_IPU_CONN_DAP_RX,
  78                 "ipu_conn_dap_rx", "dsp1_sel", 0),
  79         GATE_IPU_CONN_APB(CLK_IPU_CONN_APB2AXI,
  80                 "ipu_conn_apb2axi", "dsp1_sel", 3),
  81         GATE_IPU_CONN_APB(CLK_IPU_CONN_APB2AHB,
  82                 "ipu_conn_apb2ahb", "dsp1_sel", 20),
  83         GATE_IPU_CONN_AXI_I(CLK_IPU_CONN_IPU_CAB1TO2,
  84                 "ipu_conn_ipu_cab1to2", "dsp1_sel", 6),
  85         GATE_IPU_CONN_AXI_I(CLK_IPU_CONN_IPU1_CAB1TO2,
  86                 "ipu_conn_ipu1_cab1to2", "dsp1_sel", 13),
  87         GATE_IPU_CONN_AXI_I(CLK_IPU_CONN_IPU2_CAB1TO2,
  88                 "ipu_conn_ipu2_cab1to2", "dsp1_sel", 20),
  89         GATE_IPU_CONN_AXI1_I(CLK_IPU_CONN_CAB3TO3,
  90                 "ipu_conn_cab3to3", "dsp1_sel", 0),
  91         GATE_IPU_CONN_AXI2_I(CLK_IPU_CONN_CAB2TO1,
  92                 "ipu_conn_cab2to1", "dsp1_sel", 14),
  93         GATE_IPU_CONN_AXI2_I(CLK_IPU_CONN_CAB3TO1_SLICE,
  94                 "ipu_conn_cab3to1_slice", "dsp1_sel", 17),
  95 };
  96
  97 static int clk_mt8183_ipu_conn_probe(struct platform_device *pdev)
  98 {
  99         struct clk_onecell_data *clk_data;
 100         struct device_node *node = pdev->dev.of_node;
 101
 102         clk_data = mtk_alloc_clk_data(CLK_IPU_CONN_NR_CLK);
 103
 104         mtk_clk_register_gates(node, ipu_conn_clks, ARRAY_SIZE(ipu_conn_clks),
 105                         clk_data);
 106
 107         return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
 108 }
 109
 110 static const struct of_device_id of_match_clk_mt8183_ipu_conn[] = {
 111         { .compatible = "mediatek,mt8183-ipu_conn", },
 112         {}
 113 };
 114
 115 static struct platform_driver clk_mt8183_ipu_conn_drv = {
 116         .probe = clk_mt8183_ipu_conn_probe,
 117         .driver = {
 118                 .name = "clk-mt8183-ipu_conn",
 119                 .of_match_table = of_match_clk_mt8183_ipu_conn,
 120         },
 121 };
 122
 123 builtin_platform_driver(clk_mt8183_ipu_conn_drv);