diff mbox series

[v7,07/19] clk: mediatek: Add MT8188 ccusys clock support

Message ID 20230331082131.12517-8-Garmin.Chang@mediatek.com (mailing list archive)
State New, archived
Headers show
Series MediaTek MT8188 clock support | expand

Commit Message

Garmin.Chang March 31, 2023, 8:21 a.m. UTC 
Add MT8188 ccusys clock controller which provides clock gate
control in Camera Computing Unit.

Signed-off-by: Garmin.Chang <Garmin.Chang@mediatek.com>
---
 drivers/clk/mediatek/Makefile         |  2 +-
 drivers/clk/mediatek/clk-mt8188-ccu.c | 50 +++++++++++++++++++++++++++
 2 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/mediatek/clk-mt8188-ccu.c

Comments

AngeloGioacchino Del Regno March 31, 2023, 9:54 a.m. UTC | #1 
Il 31/03/23 10:21, Garmin.Chang ha scritto:
> Add MT8188 ccusys clock controller which provides clock gate
> control in Camera Computing Unit.
> 
> Signed-off-by: Garmin.Chang <Garmin.Chang@mediatek.com>
> ---
>   drivers/clk/mediatek/Makefile         |  2 +-
>   drivers/clk/mediatek/clk-mt8188-ccu.c | 50 +++++++++++++++++++++++++++
>   2 files changed, 51 insertions(+), 1 deletion(-)
>   create mode 100644 drivers/clk/mediatek/clk-mt8188-ccu.c
> 
> diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
> index c235e9a0d305..fc4faee04636 100644
> --- a/drivers/clk/mediatek/Makefile
> +++ b/drivers/clk/mediatek/Makefile
> @@ -102,7 +102,7 @@ obj-$(CONFIG_COMMON_CLK_MT8186_VENCSYS) += clk-mt8186-venc.o
>   obj-$(CONFIG_COMMON_CLK_MT8186_WPESYS) += clk-mt8186-wpe.o
>   obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o \
>   				   clk-mt8188-peri_ao.o clk-mt8188-infra_ao.o
> -j-$(CONFIG_COMMON_CLK_MT8188_CAMSYS) += clk-mt8188-cam.o
> +obj-$(CONFIG_COMMON_CLK_MT8188_CAMSYS) += clk-mt8188-cam.o clk-mt8188-ccu.o

The 'obj' typo has to be fixed in patch [06/19], after which:

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
diff mbox series

Patch

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index c235e9a0d305..fc4faee04636 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -102,7 +102,7 @@  obj-$(CONFIG_COMMON_CLK_MT8186_VENCSYS) += clk-mt8186-venc.o
 obj-$(CONFIG_COMMON_CLK_MT8186_WPESYS) += clk-mt8186-wpe.o
 obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o \
 				   clk-mt8188-peri_ao.o clk-mt8188-infra_ao.o
-j-$(CONFIG_COMMON_CLK_MT8188_CAMSYS) += clk-mt8188-cam.o
+obj-$(CONFIG_COMMON_CLK_MT8188_CAMSYS) += clk-mt8188-cam.o clk-mt8188-ccu.o
 obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192-apmixedsys.o 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-ccu.c b/drivers/clk/mediatek/clk-mt8188-ccu.c
new file mode 100644
index 000000000000..ebc0d3aeee11
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8188-ccu.c
@@ -0,0 +1,50 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Garmin Chang <garmin.chang@mediatek.com>
+ */
+
+#include <dt-bindings/clock/mediatek,mt8188-clk.h>
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+static const struct mtk_gate_regs ccu_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_CCU(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &ccu_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate ccu_clks[] = {
+	GATE_CCU(CLK_CCU_LARB27, "ccu_larb27", "top_ccu", 0),
+	GATE_CCU(CLK_CCU_AHB, "ccu_ahb", "top_ccu", 1),
+	GATE_CCU(CLK_CCU_CCU0, "ccu_ccu0", "top_ccu", 2),
+};
+
+static const struct mtk_clk_desc ccu_desc = {
+	.clks = ccu_clks,
+	.num_clks = ARRAY_SIZE(ccu_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8188_ccu[] = {
+	{ .compatible = "mediatek,mt8188-ccusys", .data = &ccu_desc },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_ccu);
+
+static struct platform_driver clk_mt8188_ccu_drv = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt8188-ccu",
+		.of_match_table = of_match_clk_mt8188_ccu,
+	},
+};
+
+module_platform_driver(clk_mt8188_ccu_drv);
+MODULE_LICENSE("GPL");