clk: mediatek: Add MT8183 clock support

Add MT8183 clock support, include topckgen, apmixedsys,
infracfg, mcucfg and subsystem clocks.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/drivers/clk/mediatek/clk-mt8183-ipu1.c b/drivers/clk/mediatek/clk-mt8183-ipu1.c
new file mode 100644
index 000000000000..8fd5fe002890
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8183-ipu1.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_core1_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_IPU_CORE1(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &ipu_core1_cg_regs, _shift,	\
+		&mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate ipu_core1_clks[] = {
+	GATE_IPU_CORE1(CLK_IPU_CORE1_JTAG, "ipu_core1_jtag", "dsp_sel", 0),
+	GATE_IPU_CORE1(CLK_IPU_CORE1_AXI, "ipu_core1_axi", "dsp_sel", 1),
+	GATE_IPU_CORE1(CLK_IPU_CORE1_IPU, "ipu_core1_ipu", "dsp_sel", 2),
+};
+
+static int clk_mt8183_ipu_core1_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_CORE1_NR_CLK);
+
+	mtk_clk_register_gates(node, ipu_core1_clks, ARRAY_SIZE(ipu_core1_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_core1[] = {
+	{ .compatible = "mediatek,mt8183-ipu_core1", },
+	{}
+};
+
+static struct platform_driver clk_mt8183_ipu_core1_drv = {
+	.probe = clk_mt8183_ipu_core1_probe,
+	.driver = {
+		.name = "clk-mt8183-ipu_core1",
+		.of_match_table = of_match_clk_mt8183_ipu_core1,
+	},
+};
+
+builtin_platform_driver(clk_mt8183_ipu_core1_drv);