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path: root/drivers/clk/mediatek/clk-mt8183-ipu0.c
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Diffstat (limited to 'drivers/clk/mediatek/clk-mt8183-ipu0.c')
-rw-r--r--drivers/clk/mediatek/clk-mt8183-ipu0.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8183-ipu0.c b/drivers/clk/mediatek/clk-mt8183-ipu0.c
new file mode 100644
index 000000000..c5cb76fc9
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8183-ipu0.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2018 MediaTek Inc.
+// Author: Weiyi Lu <weiyi.lu@mediatek.com>
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt8183-clk.h>
+
+static const struct mtk_gate_regs ipu_core0_cg_regs = {
+ .set_ofs = 0x4,
+ .clr_ofs = 0x8,
+ .sta_ofs = 0x0,
+};
+
+#define GATE_IPU_CORE0(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &ipu_core0_cg_regs, _shift, \
+ &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate ipu_core0_clks[] = {
+ GATE_IPU_CORE0(CLK_IPU_CORE0_JTAG, "ipu_core0_jtag", "dsp_sel", 0),
+ GATE_IPU_CORE0(CLK_IPU_CORE0_AXI, "ipu_core0_axi", "dsp_sel", 1),
+ GATE_IPU_CORE0(CLK_IPU_CORE0_IPU, "ipu_core0_ipu", "dsp_sel", 2),
+};
+
+static int clk_mt8183_ipu_core0_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_IPU_CORE0_NR_CLK);
+
+ mtk_clk_register_gates(node, ipu_core0_clks, ARRAY_SIZE(ipu_core0_clks),
+ clk_data);
+
+ return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+}
+
+static const struct of_device_id of_match_clk_mt8183_ipu_core0[] = {
+ { .compatible = "mediatek,mt8183-ipu_core0", },
+ {}
+};
+
+static struct platform_driver clk_mt8183_ipu_core0_drv = {
+ .probe = clk_mt8183_ipu_core0_probe,
+ .driver = {
+ .name = "clk-mt8183-ipu_core0",
+ .of_match_table = of_match_clk_mt8183_ipu_core0,
+ },
+};
+
+builtin_platform_driver(clk_mt8183_ipu_core0_drv);