[PATCH v2 11/15] clk: mediatek: Add MT8186 vdecsys clock support

Chun-Jie Chen
2022-02-21T01:59:52Z

Add MT8186 vdec clock controller which provide clock gate
control for video decoder.

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-vdec.c | 88 ++++++++++++++++++++++++++
2 files changed, 89 insertions(+), 1 deletion(-)
create mode 100644 drivers/clk/mediatek/clk-mt8186-vdec.c

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index 09ede533bb4e..7b0238847881 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -74,7 +74,7 @@ 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-wpe.o \
- clk-mt8186-img.o
+ clk-mt8186-img.o clk-mt8186-vdec.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-vdec.c b/drivers/clk/mediatek/clk-mt8186-vdec.c
new file mode 100644
index 000000000000..5ad7e1ae0bac
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8186-vdec.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2022 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt8186-clk.h>
+
+static const struct mtk_gate_regs vdec0_cg_regs = {
+ .set_ofs = 0x0,
+ .clr_ofs = 0x4,
+ .sta_ofs = 0x0,
+};
+
+static const struct mtk_gate_regs vdec1_cg_regs = {
+ .set_ofs = 0x190,
+ .clr_ofs = 0x190,
+ .sta_ofs = 0x190,
+};
+
+static const struct mtk_gate_regs vdec2_cg_regs = {
+ .set_ofs = 0x200,
+ .clr_ofs = 0x204,
+ .sta_ofs = 0x200,
+};
+
+static const struct mtk_gate_regs vdec3_cg_regs = {
+ .set_ofs = 0x8,
+ .clr_ofs = 0xc,
+ .sta_ofs = 0x8,
+};
+
+#define GATE_VDEC0(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
+
+#define GATE_VDEC1(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
+
+#define GATE_VDEC2(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &vdec2_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
+
+#define GATE_VDEC3(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &vdec3_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
+
+static const struct mtk_gate vdec_clks[] = {
+ /* VDEC0 */
+ GATE_VDEC0(CLK_VDEC_CKEN, "vdec_cken", "top_vdec", 0),
+ GATE_VDEC0(CLK_VDEC_ACTIVE, "vdec_active", "top_vdec", 4),
+ GATE_VDEC0(CLK_VDEC_CKEN_ENG, "vdec_cken_eng", "top_vdec", 8),
+ /* VDEC1 */
+ GATE_VDEC1(CLK_VDEC_MINI_MDP_CKEN_CFG_RG, "vdec_mini_mdp_cken_cfg_rg", "top_vdec", 0),
+ /* VDEC2 */
+ GATE_VDEC2(CLK_VDEC_LAT_CKEN, "vdec_lat_cken", "top_vdec", 0),
+ GATE_VDEC2(CLK_VDEC_LAT_ACTIVE, "vdec_lat_active", "top_vdec", 4),
+ GATE_VDEC2(CLK_VDEC_LAT_CKEN_ENG, "vdec_lat_cken_eng", "top_vdec", 8),
+ /* VDEC3 */
+ GATE_VDEC3(CLK_VDEC_LARB1_CKEN, "vdec_larb1_cken", "top_vdec", 0),
+};
+
+static const struct mtk_clk_desc vdec_desc = {
+ .clks = vdec_clks,
+ .num_clks = ARRAY_SIZE(vdec_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8186_vdec[] = {
+ {
+ .compatible = "mediatek,mt8186-vdecsys",
+ .data = &vdec_desc,
+ }, {
+ /* sentinel */
+ }
+};
+
+static struct platform_driver clk_mt8186_vdec_drv = {
+ .probe = mtk_clk_simple_probe,
+ .remove = mtk_clk_simple_remove,
+ .driver = {
+ .name = "clk-mt8186-vdec",
+ .of_match_table = of_match_clk_mt8186_vdec,
+ },
+};
+builtin_platform_driver(clk_mt8186_vdec_drv);
--
2.18.0