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path: root/drivers/clk/mediatek/clk-mt6779-venc.c
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Diffstat (limited to 'drivers/clk/mediatek/clk-mt6779-venc.c')
-rw-r--r--drivers/clk/mediatek/clk-mt6779-venc.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6779-venc.c b/drivers/clk/mediatek/clk-mt6779-venc.c
new file mode 100644
index 000000000..b41d1f859
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt6779-venc.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ * Author: Wendell Lin <wendell.lin@mediatek.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt6779-clk.h>
+
+static const struct mtk_gate_regs venc_cg_regs = {
+ .set_ofs = 0x0004,
+ .clr_ofs = 0x0008,
+ .sta_ofs = 0x0000,
+};
+
+#define GATE_VENC_I(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &venc_cg_regs, _shift, \
+ &mtk_clk_gate_ops_setclr_inv)
+
+static const struct mtk_gate venc_clks[] = {
+ GATE_VENC_I(CLK_VENC_GCON_LARB, "venc_larb", "venc_sel", 0),
+ GATE_VENC_I(CLK_VENC_GCON_VENC, "venc_venc", "venc_sel", 4),
+ GATE_VENC_I(CLK_VENC_GCON_JPGENC, "venc_jpgenc", "venc_sel", 8),
+ GATE_VENC_I(CLK_VENC_GCON_GALS, "venc_gals", "venc_sel", 28),
+};
+
+static const struct of_device_id of_match_clk_mt6779_venc[] = {
+ { .compatible = "mediatek,mt6779-vencsys", },
+ {}
+};
+
+static int clk_mt6779_venc_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_VENC_GCON_NR_CLK);
+
+ mtk_clk_register_gates(node, venc_clks, ARRAY_SIZE(venc_clks),
+ clk_data);
+
+ return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+}
+
+static struct platform_driver clk_mt6779_venc_drv = {
+ .probe = clk_mt6779_venc_probe,
+ .driver = {
+ .name = "clk-mt6779-venc",
+ .of_match_table = of_match_clk_mt6779_venc,
+ },
+};
+
+builtin_platform_driver(clk_mt6779_venc_drv);