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Diffstat (limited to 'drivers/clk/mediatek/clk-mt2712-jpgdec.c')
-rw-r--r--drivers/clk/mediatek/clk-mt2712-jpgdec.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt2712-jpgdec.c b/drivers/clk/mediatek/clk-mt2712-jpgdec.c
new file mode 100644
index 000000000..58813c38a
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt2712-jpgdec.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2017 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/mt2712-clk.h>
+
+static const struct mtk_gate_regs jpgdec_cg_regs = {
+ .set_ofs = 0x4,
+ .clr_ofs = 0x8,
+ .sta_ofs = 0x0,
+};
+
+#define GATE_JPGDEC(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &jpgdec_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr_inv, \
+ }
+
+static const struct mtk_gate jpgdec_clks[] = {
+ GATE_JPGDEC(CLK_JPGDEC_JPGDEC1, "jpgdec_jpgdec1", "jpgdec_sel", 0),
+ GATE_JPGDEC(CLK_JPGDEC_JPGDEC, "jpgdec_jpgdec", "jpgdec_sel", 4),
+};
+
+static int clk_mt2712_jpgdec_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_JPGDEC_NR_CLK);
+
+ mtk_clk_register_gates(node, jpgdec_clks, ARRAY_SIZE(jpgdec_clks),
+ clk_data);
+
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+
+ if (r != 0)
+ pr_err("%s(): could not register clock provider: %d\n",
+ __func__, r);
+
+ return r;
+}
+
+static const struct of_device_id of_match_clk_mt2712_jpgdec[] = {
+ { .compatible = "mediatek,mt2712-jpgdecsys", },
+ {}
+};
+
+static struct platform_driver clk_mt2712_jpgdec_drv = {
+ .probe = clk_mt2712_jpgdec_probe,
+ .driver = {
+ .name = "clk-mt2712-jpgdec",
+ .of_match_table = of_match_clk_mt2712_jpgdec,
+ },
+};
+
+builtin_platform_driver(clk_mt2712_jpgdec_drv);