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path: root/drivers/clk/mediatek/clk-mt6765-cam.c
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Diffstat (limited to 'drivers/clk/mediatek/clk-mt6765-cam.c')
-rw-r--r--drivers/clk/mediatek/clk-mt6765-cam.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6765-cam.c b/drivers/clk/mediatek/clk-mt6765-cam.c
new file mode 100644
index 000000000000..c96394893bcf
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt6765-cam.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Owen Chen <owen.chen@mediatek.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt6765-clk.h>
+
+static const struct mtk_gate_regs cam_cg_regs = {
+ .set_ofs = 0x4,
+ .clr_ofs = 0x8,
+ .sta_ofs = 0x0,
+};
+
+#define GATE_CAM(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &cam_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr, \
+ }
+
+static const struct mtk_gate cam_clks[] = {
+ GATE_CAM(CLK_CAM_LARB3, "cam_larb3", "mm_ck", 0),
+ GATE_CAM(CLK_CAM_DFP_VAD, "cam_dfp_vad", "mm_ck", 1),
+ GATE_CAM(CLK_CAM, "cam", "mm_ck", 6),
+ GATE_CAM(CLK_CAMTG, "camtg", "mm_ck", 7),
+ GATE_CAM(CLK_CAM_SENINF, "cam_seninf", "mm_ck", 8),
+ GATE_CAM(CLK_CAMSV0, "camsv0", "mm_ck", 9),
+ GATE_CAM(CLK_CAMSV1, "camsv1", "mm_ck", 10),
+ GATE_CAM(CLK_CAMSV2, "camsv2", "mm_ck", 11),
+ GATE_CAM(CLK_CAM_CCU, "cam_ccu", "mm_ck", 12),
+};
+
+static int clk_mt6765_cam_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_CAM_NR_CLK);
+
+ mtk_clk_register_gates(node, cam_clks, ARRAY_SIZE(cam_clks), clk_data);
+
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+
+ if (r)
+ pr_err("%s(): could not register clock provider: %d\n",
+ __func__, r);
+
+ return r;
+}
+
+static const struct of_device_id of_match_clk_mt6765_cam[] = {
+ { .compatible = "mediatek,mt6765-camsys", },
+ {}
+};
+
+static struct platform_driver clk_mt6765_cam_drv = {
+ .probe = clk_mt6765_cam_probe,
+ .driver = {
+ .name = "clk-mt6765-cam",
+ .of_match_table = of_match_clk_mt6765_cam,
+ },
+};
+
+builtin_platform_driver(clk_mt6765_cam_drv);