Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 95 insertions, 0 deletions

diff --git a/drivers/clk/mediatek/clk-mt2701-g3d.c b/drivers/clk/mediatek/clk-mt2701-g3d.c
new file mode 100644
index 000000000..1328c112a
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt2701-g3d.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Sean Wang <sean.wang@mediatek.com>
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt2701-clk.h>
+
+#define GATE_G3D(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &g3d_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_setclr,	\
+	}
+
+static const struct mtk_gate_regs g3d_cg_regs = {
+	.sta_ofs = 0x0,
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+};
+
+static const struct mtk_gate g3d_clks[] = {
+	GATE_G3D(CLK_G3DSYS_CORE, "g3d_core", "mfg_sel", 0),
+};
+
+static int clk_mt2701_g3dsys_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_G3DSYS_NR);
+
+	mtk_clk_register_gates(node, g3d_clks, ARRAY_SIZE(g3d_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);
+
+	mtk_register_reset_controller(node, 1, 0xc);
+
+	return r;
+}
+
+static const struct of_device_id of_match_clk_mt2701_g3d[] = {
+	{
+		.compatible = "mediatek,mt2701-g3dsys",
+		.data = clk_mt2701_g3dsys_init,
+	}, {
+		/* sentinel */
+	}
+};
+
+static int clk_mt2701_g3d_probe(struct platform_device *pdev)
+{
+	int (*clk_init)(struct platform_device *);
+	int r;
+
+	clk_init = of_device_get_match_data(&pdev->dev);
+	if (!clk_init)
+		return -EINVAL;
+
+	r = clk_init(pdev);
+	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_g3d_drv = {
+	.probe = clk_mt2701_g3d_probe,
+	.driver = {
+		.name = "clk-mt2701-g3d",
+		.of_match_table = of_match_clk_mt2701_g3d,
+	},
+};
+
+builtin_platform_driver(clk_mt2701_g3d_drv);