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Subject[PATCH v3 09/15] clk: mediatek: Add MT8186 wpesys clock support
Date
Add MT8186 wpesys clock controllers which provide clock gate
control in Wrapping Engine.

Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/clk/mediatek/Makefile | 2 +-
drivers/clk/mediatek/clk-mt8186-wpe.c | 51 +++++++++++++++++++++++++++
2 files changed, 52 insertions(+), 1 deletion(-)
create mode 100644 drivers/clk/mediatek/clk-mt8186-wpe.c

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index d0daef003b87..cb1087737007 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -73,7 +73,7 @@ obj-$(CONFIG_COMMON_CLK_MT8183_VDECSYS) += clk-mt8183-vdec.o
obj-$(CONFIG_COMMON_CLK_MT8183_VENCSYS) += clk-mt8183-venc.o
obj-$(CONFIG_COMMON_CLK_MT8186) += clk-mt8186-mcu.o clk-mt8186-topckgen.o clk-mt8186-infra_ao.o \
clk-mt8186-apmixedsys.o clk-mt8186-imp_iic_wrap.o \
- clk-mt8186-mfg.o clk-mt8186-mm.o
+ clk-mt8186-mfg.o clk-mt8186-mm.o clk-mt8186-wpe.o
obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192.o
obj-$(CONFIG_COMMON_CLK_MT8192_AUDSYS) += clk-mt8192-aud.o
obj-$(CONFIG_COMMON_CLK_MT8192_CAMSYS) += clk-mt8192-cam.o
diff --git a/drivers/clk/mediatek/clk-mt8186-wpe.c b/drivers/clk/mediatek/clk-mt8186-wpe.c
new file mode 100644
index 000000000000..8c16c53ba808
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8186-wpe.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2022 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+#include <dt-bindings/clock/mt8186-clk.h>
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+static const struct mtk_gate_regs wpe_cg_regs = {
+ .set_ofs = 0x0,
+ .clr_ofs = 0x0,
+ .sta_ofs = 0x0,
+};
+
+#define GATE_WPE(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &wpe_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
+
+static const struct mtk_gate wpe_clks[] = {
+ GATE_WPE(CLK_WPE_CK_EN, "wpe", "top_wpe", 17),
+ GATE_WPE(CLK_WPE_SMI_LARB8_CK_EN, "wpe_smi_larb8", "top_wpe", 19),
+ GATE_WPE(CLK_WPE_SYS_EVENT_TX_CK_EN, "wpe_sys_event_tx", "top_wpe", 20),
+ GATE_WPE(CLK_WPE_SMI_LARB8_PCLK_EN, "wpe_smi_larb8_p_en", "top_wpe", 25),
+};
+
+static const struct mtk_clk_desc wpe_desc = {
+ .clks = wpe_clks,
+ .num_clks = ARRAY_SIZE(wpe_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8186_wpe[] = {
+ {
+ .compatible = "mediatek,mt8186-wpesys",
+ .data = &wpe_desc,
+ }, {
+ /* sentinel */
+ }
+};
+
+static struct platform_driver clk_mt8186_wpe_drv = {
+ .probe = mtk_clk_simple_probe,
+ .remove = mtk_clk_simple_remove,
+ .driver = {
+ .name = "clk-mt8186-wpe",
+ .of_match_table = of_match_clk_mt8186_wpe,
+ },
+};
+builtin_platform_driver(clk_mt8186_wpe_drv);
--
2.18.0
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