diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt6779-cam.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt6779-cam.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6779-cam.c b/drivers/clk/mediatek/clk-mt6779-cam.c new file mode 100644 index 000000000000..244d4208b7fb --- /dev/null +++ b/drivers/clk/mediatek/clk-mt6779-cam.c @@ -0,0 +1,66 @@ +// 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 cam_cg_regs = { + .set_ofs = 0x0004, + .clr_ofs = 0x0008, + .sta_ofs = 0x0000, +}; + +#define GATE_CAM(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &cam_cg_regs, _shift, \ + &mtk_clk_gate_ops_setclr) + +static const struct mtk_gate cam_clks[] = { + GATE_CAM(CLK_CAM_LARB10, "camsys_larb10", "cam_sel", 0), + GATE_CAM(CLK_CAM_DFP_VAD, "camsys_dfp_vad", "cam_sel", 1), + GATE_CAM(CLK_CAM_LARB11, "camsys_larb11", "cam_sel", 2), + GATE_CAM(CLK_CAM_LARB9, "camsys_larb9", "cam_sel", 3), + GATE_CAM(CLK_CAM_CAM, "camsys_cam", "cam_sel", 6), + GATE_CAM(CLK_CAM_CAMTG, "camsys_camtg", "cam_sel", 7), + GATE_CAM(CLK_CAM_SENINF, "camsys_seninf", "cam_sel", 8), + GATE_CAM(CLK_CAM_CAMSV0, "camsys_camsv0", "cam_sel", 9), + GATE_CAM(CLK_CAM_CAMSV1, "camsys_camsv1", "cam_sel", 10), + GATE_CAM(CLK_CAM_CAMSV2, "camsys_camsv2", "cam_sel", 11), + GATE_CAM(CLK_CAM_CAMSV3, "camsys_camsv3", "cam_sel", 12), + GATE_CAM(CLK_CAM_CCU, "camsys_ccu", "cam_sel", 13), + GATE_CAM(CLK_CAM_FAKE_ENG, "camsys_fake_eng", "cam_sel", 14), +}; + +static const struct of_device_id of_match_clk_mt6779_cam[] = { + { .compatible = "mediatek,mt6779-camsys", }, + {} +}; + +static int clk_mt6779_cam_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_CAM_NR_CLK); + + mtk_clk_register_gates(node, cam_clks, ARRAY_SIZE(cam_clks), + clk_data); + + return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); +} + +static struct platform_driver clk_mt6779_cam_drv = { + .probe = clk_mt6779_cam_probe, + .driver = { + .name = "clk-mt6779-cam", + .of_match_table = of_match_clk_mt6779_cam, + }, +}; + +builtin_platform_driver(clk_mt6779_cam_drv); |