drivers/clk/mediatek/clk-mt6779-venc.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/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/mt6779-clk.h>
  14
  15 static const struct mtk_gate_regs venc_cg_regs = {
  16         .set_ofs = 0x0004,
  17         .clr_ofs = 0x0008,
  18         .sta_ofs = 0x0000,
  19 };
  20
  21 #define GATE_VENC_I(_id, _name, _parent, _shift)                \
  22         GATE_MTK(_id, _name, _parent, &venc_cg_regs, _shift,    \
  23                 &mtk_clk_gate_ops_setclr_inv)
  24
  25 static const struct mtk_gate venc_clks[] = {
  26         GATE_VENC_I(CLK_VENC_GCON_LARB, "venc_larb", "venc_sel", 0),
  27         GATE_VENC_I(CLK_VENC_GCON_VENC, "venc_venc", "venc_sel", 4),
  28         GATE_VENC_I(CLK_VENC_GCON_JPGENC, "venc_jpgenc", "venc_sel", 8),
  29         GATE_VENC_I(CLK_VENC_GCON_GALS, "venc_gals", "venc_sel", 28),
  30 };
  31
  32 static const struct of_device_id of_match_clk_mt6779_venc[] = {
  33         { .compatible = "mediatek,mt6779-vencsys", },
  34         {}
  35 };
  36
  37 static int clk_mt6779_venc_probe(struct platform_device *pdev)
  38 {
  39         struct clk_onecell_data *clk_data;
  40         struct device_node *node = pdev->dev.of_node;
  41
  42         clk_data = mtk_alloc_clk_data(CLK_VENC_GCON_NR_CLK);
  43
  44         mtk_clk_register_gates(node, venc_clks, ARRAY_SIZE(venc_clks),
  45                                clk_data);
  46
  47         return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  48 }
  49
  50 static struct platform_driver clk_mt6779_venc_drv = {
  51         .probe = clk_mt6779_venc_probe,
  52         .driver = {
  53                 .name = "clk-mt6779-venc",
  54                 .of_match_table = of_match_clk_mt6779_venc,
  55         },
  56 };
  57
  58 builtin_platform_driver(clk_mt6779_venc_drv);