summaryrefslogtreecommitdiffstats
path: root/drivers/clk/mediatek/clk-mt6779-ipe.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--drivers/clk/mediatek/clk-mt6779-ipe.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6779-ipe.c b/drivers/clk/mediatek/clk-mt6779-ipe.c
new file mode 100644
index 000000000..bb5190756
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt6779-ipe.c
@@ -0,0 +1,60 @@
+// 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 <dt-bindings/clock/mt6779-clk.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+static const struct mtk_gate_regs ipe_cg_regs = {
+ .set_ofs = 0x0004,
+ .clr_ofs = 0x0008,
+ .sta_ofs = 0x0000,
+};
+
+#define GATE_IPE(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift, \
+ &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate ipe_clks[] = {
+ GATE_IPE(CLK_IPE_LARB7, "ipe_larb7", "ipe_sel", 0),
+ GATE_IPE(CLK_IPE_LARB8, "ipe_larb8", "ipe_sel", 1),
+ GATE_IPE(CLK_IPE_SMI_SUBCOM, "ipe_smi_subcom", "ipe_sel", 2),
+ GATE_IPE(CLK_IPE_FD, "ipe_fd", "ipe_sel", 3),
+ GATE_IPE(CLK_IPE_FE, "ipe_fe", "ipe_sel", 4),
+ GATE_IPE(CLK_IPE_RSC, "ipe_rsc", "ipe_sel", 5),
+ GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "ipe_sel", 6),
+};
+
+static const struct of_device_id of_match_clk_mt6779_ipe[] = {
+ { .compatible = "mediatek,mt6779-ipesys", },
+ {}
+};
+
+static int clk_mt6779_ipe_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_IPE_NR_CLK);
+
+ mtk_clk_register_gates(node, ipe_clks, ARRAY_SIZE(ipe_clks),
+ clk_data);
+
+ return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+}
+
+static struct platform_driver clk_mt6779_ipe_drv = {
+ .probe = clk_mt6779_ipe_probe,
+ .driver = {
+ .name = "clk-mt6779-ipe",
+ .of_match_table = of_match_clk_mt6779_ipe,
+ },
+};
+
+builtin_platform_driver(clk_mt6779_ipe_drv);