diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt2701-mm.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt2701-mm.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt2701-mm.c b/drivers/clk/mediatek/clk-mt2701-mm.c new file mode 100644 index 000000000000..fe1f85072fc5 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt2701-mm.c @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: Shunli Wang <shunli.wang@mediatek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk-provider.h> +#include <linux/platform_device.h> + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include <dt-bindings/clock/mt2701-clk.h> + +static const struct mtk_gate_regs disp0_cg_regs = { + .set_ofs = 0x0104, + .clr_ofs = 0x0108, + .sta_ofs = 0x0100, +}; + +static const struct mtk_gate_regs disp1_cg_regs = { + .set_ofs = 0x0114, + .clr_ofs = 0x0118, + .sta_ofs = 0x0110, +}; + +#define GATE_DISP0(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &disp0_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +#define GATE_DISP1(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &disp1_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +static const struct mtk_gate mm_clks[] = { + GATE_DISP0(CLK_MM_SMI_COMMON, "mm_smi_comm", "mm_sel", 0), + GATE_DISP0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1), + GATE_DISP0(CLK_MM_CMDQ, "mm_cmdq", "mm_sel", 2), + GATE_DISP0(CLK_MM_MUTEX, "mm_mutex", "mm_sel", 3), + GATE_DISP0(CLK_MM_DISP_COLOR, "mm_disp_color", "mm_sel", 4), + GATE_DISP0(CLK_MM_DISP_BLS, "mm_disp_bls", "mm_sel", 5), + GATE_DISP0(CLK_MM_DISP_WDMA, "mm_disp_wdma", "mm_sel", 6), + GATE_DISP0(CLK_MM_DISP_RDMA, "mm_disp_rdma", "mm_sel", 7), + GATE_DISP0(CLK_MM_DISP_OVL, "mm_disp_ovl", "mm_sel", 8), + GATE_DISP0(CLK_MM_MDP_TDSHP, "mm_mdp_tdshp", "mm_sel", 9), + GATE_DISP0(CLK_MM_MDP_WROT, "mm_mdp_wrot", "mm_sel", 10), + GATE_DISP0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11), + GATE_DISP0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 12), + GATE_DISP0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 13), + GATE_DISP0(CLK_MM_MDP_RDMA, "mm_mdp_rdma", "mm_sel", 14), + GATE_DISP0(CLK_MM_MDP_BLS_26M, "mm_mdp_bls_26m", "pwm_sel", 15), + GATE_DISP0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 16), + GATE_DISP0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 17), + GATE_DISP0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 18), + GATE_DISP0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19), + GATE_DISP0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 20), + GATE_DISP1(CLK_MM_DSI_ENGINE, "mm_dsi_eng", "mm_sel", 0), + GATE_DISP1(CLK_MM_DSI_DIG, "mm_dsi_dig", "dsi0_lntc_dsi", 1), + GATE_DISP1(CLK_MM_DPI_DIGL, "mm_dpi_digl", "dpi0_sel", 2), + GATE_DISP1(CLK_MM_DPI_ENGINE, "mm_dpi_eng", "mm_sel", 3), + GATE_DISP1(CLK_MM_DPI1_DIGL, "mm_dpi1_digl", "dpi1_sel", 4), + GATE_DISP1(CLK_MM_DPI1_ENGINE, "mm_dpi1_eng", "mm_sel", 5), + GATE_DISP1(CLK_MM_TVE_OUTPUT, "mm_tve_output", "tve_sel", 6), + GATE_DISP1(CLK_MM_TVE_INPUT, "mm_tve_input", "dpi0_sel", 7), + GATE_DISP1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi1_sel", 8), + GATE_DISP1(CLK_MM_HDMI_PLL, "mm_hdmi_pll", "hdmi_sel", 9), + GATE_DISP1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll_sel", 10), + GATE_DISP1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll_sel", 11), + GATE_DISP1(CLK_MM_TVE_FMM, "mm_tve_fmm", "mm_sel", 14), +}; + +static const struct of_device_id of_match_clk_mt2701_mm[] = { + { .compatible = "mediatek,mt2701-mmsys", }, + {} +}; + +static int clk_mt2701_mm_probe(struct platform_device *pdev) +{ + struct clk_onecell_data *clk_data; + int r; + struct device_node *node = pdev->dev.of_node; + + clk_data = mtk_alloc_clk_data(CLK_MM_NR); + + mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks), + clk_data); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + dev_err(&pdev->dev, + "could not register clock provider: %s: %d\n", + pdev->name, r); + + return r; +} + +static struct platform_driver clk_mt2701_mm_drv = { + .probe = clk_mt2701_mm_probe, + .driver = { + .name = "clk-mt2701-mm", + .of_match_table = of_match_clk_mt2701_mm, + }, +}; + +builtin_platform_driver(clk_mt2701_mm_drv); |