[PATCH v4 17/19] clk: mediatek: Add MT8188 wpesys clock support

[Garmin.Chang]

Add MT8188 wpesys clock controllers which provide clock gate
control in Wrapping Engine.

Signed-off-by: Garmin.Chang <Garmin.Chang at mediatek.com>
---
 drivers/clk/mediatek/Makefile         |   2 +-
 drivers/clk/mediatek/clk-mt8188-wpe.c | 101 ++++++++++++++++++++++++++
 2 files changed, 102 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/mediatek/clk-mt8188-wpe.c

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index 37663de293bf..ed35546819a9 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -88,7 +88,7 @@ obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o
 				   clk-mt8188-cam.o clk-mt8188-ccu.o clk-mt8188-img.o \
 				   clk-mt8188-ipe.o clk-mt8188-mfg.o clk-mt8188-vdec.o \
 				   clk-mt8188-vdo0.o clk-mt8188-vdo1.o clk-mt8188-venc.o \
-				   clk-mt8188-vpp0.o clk-mt8188-vpp1.o
+				   clk-mt8188-vpp0.o clk-mt8188-vpp1.o clk-mt8188-wpe.o
 obj-$(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-mt8188-wpe.c b/drivers/clk/mediatek/clk-mt8188-wpe.c
new file mode 100644
index 000000000000..d104402ae80b
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8188-wpe.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2022 MediaTek Inc.
+// Author: Garmin Chang <garmin.chang at mediatek.com>
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+#include <dt-bindings/clock/mediatek,mt8188-clk.h>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+static const struct mtk_gate_regs wpe_top_cg_regs = {
+	.set_ofs = 0x0,
+	.clr_ofs = 0x0,
+	.sta_ofs = 0x0,
+};
+
+static const struct mtk_gate_regs wpe_vpp0_0_cg_regs = {
+	.set_ofs = 0x58,
+	.clr_ofs = 0x58,
+	.sta_ofs = 0x58,
+};
+
+static const struct mtk_gate_regs wpe_vpp0_1_cg_regs = {
+	.set_ofs = 0x5c,
+	.clr_ofs = 0x5c,
+	.sta_ofs = 0x5c,
+};
+
+#define GATE_WPE_TOP(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &wpe_top_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
+
+#define GATE_WPE_VPP0_0(_id, _name, _parent, _shift)		\
+	GATE_MTK(_id, _name, _parent, &wpe_vpp0_0_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
+
+#define GATE_WPE_VPP0_1(_id, _name, _parent, _shift)		\
+	GATE_MTK(_id, _name, _parent, &wpe_vpp0_1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
+
+static const struct mtk_gate wpe_top_clks[] = {
+	GATE_WPE_TOP(CLK_WPE_TOP_WPE_VPP0, "wpe_wpe_vpp0", "top_wpe_vpp", 16),
+	GATE_WPE_TOP(CLK_WPE_TOP_SMI_LARB7, "wpe_smi_larb7", "top_wpe_vpp", 18),
+	GATE_WPE_TOP(CLK_WPE_TOP_WPESYS_EVENT_TX, "wpe_wpesys_event_tx", "top_wpe_vpp", 20),
+	GATE_WPE_TOP(CLK_WPE_TOP_SMI_LARB7_PCLK_EN, "wpe_smi_larb7_p_en", "top_wpe_vpp", 24),
+};
+
+static const struct mtk_gate wpe_vpp0_clks[] = {
+	/* WPE_VPP00 */
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_VGEN, "wpe_vpp0_vgen", "top_img", 0),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_EXT, "wpe_vpp0_ext", "top_img", 1),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_VFC, "wpe_vpp0_vfc", "top_img", 2),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_CACH0_TOP, "wpe_vpp0_cach0_top", "top_img", 3),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_CACH0_DMA, "wpe_vpp0_cach0_dma", "top_img", 4),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_CACH1_TOP, "wpe_vpp0_cach1_top", "top_img", 5),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_CACH1_DMA, "wpe_vpp0_cach1_dma", "top_img", 6),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_CACH2_TOP, "wpe_vpp0_cach2_top", "top_img", 7),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_CACH2_DMA, "wpe_vpp0_cach2_dma", "top_img", 8),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_CACH3_TOP, "wpe_vpp0_cach3_top", "top_img", 9),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_CACH3_DMA, "wpe_vpp0_cach3_dma", "top_img", 10),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_PSP, "wpe_vpp0_psp", "top_img", 11),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_PSP2, "wpe_vpp0_psp2", "top_img", 12),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_SYNC, "wpe_vpp0_sync", "top_img", 13),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_C24, "wpe_vpp0_c24", "top_img", 14),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_MDP_CROP, "wpe_vpp0_mdp_crop", "top_img", 15),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_ISP_CROP, "wpe_vpp0_isp_crop", "top_img", 16),
+	GATE_WPE_VPP0_0(CLK_WPE_VPP0_TOP, "wpe_vpp0_top", "top_img", 17),
+	/* WPE_VPP0_1 */
+	GATE_WPE_VPP0_1(CLK_WPE_VPP0_VECI, "wpe_vpp0_veci", "top_img", 0),
+	GATE_WPE_VPP0_1(CLK_WPE_VPP0_VEC2I, "wpe_vpp0_vec2i", "top_img", 1),
+	GATE_WPE_VPP0_1(CLK_WPE_VPP0_VEC3I, "wpe_vpp0_vec3i", "top_img", 2),
+	GATE_WPE_VPP0_1(CLK_WPE_VPP0_WPEO, "wpe_vpp0_wpeo", "top_img", 3),
+	GATE_WPE_VPP0_1(CLK_WPE_VPP0_MSKO, "wpe_vpp0_msko", "top_img", 4),
+};
+
+static const struct mtk_clk_desc wpe_top_desc = {
+	.clks = wpe_top_clks,
+	.num_clks = ARRAY_SIZE(wpe_top_clks),
+};
+
+static const struct mtk_clk_desc wpe_vpp0_desc = {
+	.clks = wpe_vpp0_clks,
+	.num_clks = ARRAY_SIZE(wpe_vpp0_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8188_wpe[] = {
+	{ .compatible = "mediatek,mt8188-wpesys", .data = &wpe_top_desc },
+	{ .compatible = "mediatek,mt8188-wpesys-vpp0", .data = &wpe_vpp0_desc },
+	{ /* sentinel */ }
+};
+
+static struct platform_driver clk_mt8188_wpe_drv = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt8188-wpe",
+		.of_match_table = of_match_clk_mt8188_wpe,
+	},
+};
+
+builtin_platform_driver(clk_mt8188_wpe_drv);
+MODULE_LICENSE("GPL");
-- 
2.18.0