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Diffstat (limited to '')
-rw-r--r-- | drivers/clk/mediatek/clk-mt6779-ipe.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6779-ipe.c b/drivers/clk/mediatek/clk-mt6779-ipe.c new file mode 100644 index 000000000..bb5190756 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt6779-ipe.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019 MediaTek Inc. + * Author: Wendell Lin <wendell.lin@mediatek.com> + */ + +#include <linux/clk-provider.h> +#include <linux/platform_device.h> +#include <dt-bindings/clock/mt6779-clk.h> + +#include "clk-mtk.h" +#include "clk-gate.h" + +static const struct mtk_gate_regs ipe_cg_regs = { + .set_ofs = 0x0004, + .clr_ofs = 0x0008, + .sta_ofs = 0x0000, +}; + +#define GATE_IPE(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift, \ + &mtk_clk_gate_ops_setclr) + +static const struct mtk_gate ipe_clks[] = { + GATE_IPE(CLK_IPE_LARB7, "ipe_larb7", "ipe_sel", 0), + GATE_IPE(CLK_IPE_LARB8, "ipe_larb8", "ipe_sel", 1), + GATE_IPE(CLK_IPE_SMI_SUBCOM, "ipe_smi_subcom", "ipe_sel", 2), + GATE_IPE(CLK_IPE_FD, "ipe_fd", "ipe_sel", 3), + GATE_IPE(CLK_IPE_FE, "ipe_fe", "ipe_sel", 4), + GATE_IPE(CLK_IPE_RSC, "ipe_rsc", "ipe_sel", 5), + GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "ipe_sel", 6), +}; + +static const struct of_device_id of_match_clk_mt6779_ipe[] = { + { .compatible = "mediatek,mt6779-ipesys", }, + {} +}; + +static int clk_mt6779_ipe_probe(struct platform_device *pdev) +{ + struct clk_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + + clk_data = mtk_alloc_clk_data(CLK_IPE_NR_CLK); + + mtk_clk_register_gates(node, ipe_clks, ARRAY_SIZE(ipe_clks), + clk_data); + + return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); +} + +static struct platform_driver clk_mt6779_ipe_drv = { + .probe = clk_mt6779_ipe_probe, + .driver = { + .name = "clk-mt6779-ipe", + .of_match_table = of_match_clk_mt6779_ipe, + }, +}; + +builtin_platform_driver(clk_mt6779_ipe_drv); |