diff mbox series

[07/26] clk: mediatek: Add MT8196 apmixedsys clock support

Message ID 20250307032942.10447-8-guangjie.song@mediatek.com (mailing list archive)
State New
Headers show
Series clk: mediatek: Add MT8196 clock support | expand

Commit Message

Guangjie Song March 7, 2025, 3:27 a.m. UTC 
Add MT8196 apmixedsys clock controller which provides pll generated from
SoC 26m.

Signed-off-by: Guangjie Song <guangjie.song@mediatek.com>
---
 drivers/clk/mediatek/Kconfig                 |   8 +
 drivers/clk/mediatek/Makefile                |   1 +
 drivers/clk/mediatek/clk-mt8196-apmixedsys.c | 146 +++++++++++++++++++
 3 files changed, 155 insertions(+)
 create mode 100644 drivers/clk/mediatek/clk-mt8196-apmixedsys.c
diff mbox series

Patch

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 5f8e6d68fa14..1e0c6f177ecd 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -1002,6 +1002,14 @@  config COMMON_CLK_MT8195_VENCSYS
 	help
 	  This driver supports MediaTek MT8195 vencsys clocks.
 
+config COMMON_CLK_MT8196
+	tristate "Clock driver for MediaTek MT8196"
+	depends on ARM64 || COMPILE_TEST
+	select COMMON_CLK_MEDIATEK
+	default ARCH_MEDIATEK
+	help
+	  This driver supports MediaTek MT8196 basic clocks.
+
 config COMMON_CLK_MT8365
 	tristate "Clock driver for MediaTek MT8365"
 	depends on ARCH_MEDIATEK || COMPILE_TEST
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index 6efec95406bd..6144fdce3f9a 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -150,6 +150,7 @@  obj-$(CONFIG_COMMON_CLK_MT8195_VDOSYS) += clk-mt8195-vdo0.o clk-mt8195-vdo1.o
 obj-$(CONFIG_COMMON_CLK_MT8195_VENCSYS) += clk-mt8195-venc.o
 obj-$(CONFIG_COMMON_CLK_MT8195_VPPSYS) += clk-mt8195-vpp0.o clk-mt8195-vpp1.o
 obj-$(CONFIG_COMMON_CLK_MT8195_WPESYS) += clk-mt8195-wpe.o
+obj-$(CONFIG_COMMON_CLK_MT8196) += clk-mt8196-apmixedsys.o
 obj-$(CONFIG_COMMON_CLK_MT8365) += clk-mt8365-apmixedsys.o clk-mt8365.o
 obj-$(CONFIG_COMMON_CLK_MT8365_APU) += clk-mt8365-apu.o
 obj-$(CONFIG_COMMON_CLK_MT8365_CAM) += clk-mt8365-cam.o
diff --git a/drivers/clk/mediatek/clk-mt8196-apmixedsys.c b/drivers/clk/mediatek/clk-mt8196-apmixedsys.c
new file mode 100644
index 000000000000..3aa62eec07f7
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8196-apmixedsys.c
@@ -0,0 +1,146 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2025 MediaTek Inc.
+ * Author: Guangjie Song <guangjie.song@mediatek.com>
+ */
+#include <dt-bindings/clock/mt8196-clk.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-pll.h"
+
+/* PLL REG */
+#define MAINPLL_CON0	0x250
+#define MAINPLL_CON1	0x254
+#define MAINPLL_CON2	0x258
+#define MAINPLL_CON3	0x25c
+#define UNIVPLL_CON0	0x264
+#define UNIVPLL_CON1	0x268
+#define UNIVPLL_CON2	0x26c
+#define UNIVPLL_CON3	0x270
+#define MSDCPLL_CON0	0x278
+#define MSDCPLL_CON1	0x27c
+#define MSDCPLL_CON2	0x280
+#define MSDCPLL_CON3	0x284
+#define ADSPPLL_CON0	0x28c
+#define ADSPPLL_CON1	0x290
+#define ADSPPLL_CON2	0x294
+#define ADSPPLL_CON3	0x298
+#define EMIPLL_CON0	0x2a0
+#define EMIPLL_CON1	0x2a4
+#define EMIPLL_CON2	0x2a8
+#define EMIPLL_CON3	0x2ac
+#define EMIPLL2_CON0	0x2b4
+#define EMIPLL2_CON1	0x2b8
+#define EMIPLL2_CON2	0x2bc
+#define EMIPLL2_CON3	0x2c0
+
+#define MT8196_PLL_FMAX		(3800UL * MHZ)
+#define MT8196_PLL_FMIN		(1500UL * MHZ)
+#define MT8196_INTEGER_BITS	8
+
+#define PLL_FENC(_id, _name, _reg, _fenc_sta_ofs, _fenc_sta_bit,	\
+		 _flags, _pd_reg, _pd_shift,			\
+		 _pcw_reg, _pcw_shift, _pcwbits) {		\
+		.id = _id,					\
+		.name = _name,					\
+		.reg = _reg,					\
+		.fenc_sta_ofs = _fenc_sta_ofs,			\
+		.fenc_sta_bit = _fenc_sta_bit,			\
+		.flags = (_flags) | CLK_FENC_ENABLE,		\
+		.fmax = MT8196_PLL_FMAX,			\
+		.fmin = MT8196_PLL_FMIN,			\
+		.pd_reg = _pd_reg,				\
+		.pd_shift = _pd_shift,				\
+		.pcw_reg = _pcw_reg,				\
+		.pcw_shift = _pcw_shift,			\
+		.pcwbits = _pcwbits,				\
+		.pcwibits = MT8196_INTEGER_BITS,		\
+	}
+
+static const struct mtk_pll_data apmixed_plls[] = {
+	PLL_FENC(CLK_APMIXED_MAINPLL, "mainpll", MAINPLL_CON0,
+		 0x003c, 7, PLL_AO,
+		 MAINPLL_CON1, 24,
+		 MAINPLL_CON1, 0, 22),
+	PLL_FENC(CLK_APMIXED_UNIVPLL, "univpll", UNIVPLL_CON0,
+		 0x003c, 6, 0,
+		 UNIVPLL_CON1, 24,
+		 UNIVPLL_CON1, 0, 22),
+	PLL_FENC(CLK_APMIXED_MSDCPLL, "msdcpll", MSDCPLL_CON0,
+		 0x003c, 5, 0,
+		 MSDCPLL_CON1, 24,
+		 MSDCPLL_CON1, 0, 22),
+	PLL_FENC(CLK_APMIXED_ADSPPLL, "adsppll", ADSPPLL_CON0,
+		 0x003c, 4, 0,
+		 ADSPPLL_CON1, 24,
+		 ADSPPLL_CON1, 0, 22),
+	PLL_FENC(CLK_APMIXED_EMIPLL, "emipll", EMIPLL_CON0,
+		 0x003c, 3, PLL_AO,
+		 EMIPLL_CON1, 24,
+		 EMIPLL_CON1, 0, 22),
+	PLL_FENC(CLK_APMIXED_EMIPLL2, "emipll2", EMIPLL2_CON0,
+		 0x003c, 2, PLL_AO,
+		 EMIPLL2_CON1, 24,
+		 EMIPLL2_CON1, 0, 22),
+};
+
+static int clk_mt8196_apmixed_probe(struct platform_device *pdev)
+{
+	struct clk_hw_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+	int num_plls = ARRAY_SIZE(apmixed_plls);
+	int r;
+
+	clk_data = mtk_alloc_clk_data(num_plls);
+	if (!clk_data)
+		return -ENOMEM;
+
+	r = mtk_clk_register_plls(node, apmixed_plls, num_plls, clk_data);
+	if (r) {
+		mtk_free_clk_data(clk_data);
+		return r;
+	}
+
+	r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
+	if (r) {
+		mtk_clk_unregister_plls(apmixed_plls, num_plls, clk_data);
+		mtk_free_clk_data(clk_data);
+		return r;
+	}
+
+	return 0;
+}
+
+static void clk_mt8196_apmixed_remove(struct platform_device *pdev)
+{
+	struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev);
+	struct device_node *node = pdev->dev.of_node;
+
+	of_clk_del_provider(node);
+	mtk_clk_unregister_plls(apmixed_plls, ARRAY_SIZE(apmixed_plls), clk_data);
+	mtk_free_clk_data(clk_data);
+}
+
+static const struct of_device_id of_match_clk_mt8196_apmixed[] = {
+	{ .compatible = "mediatek,mt8196-apmixedsys", },
+	{ /* sentinel */ }
+};
+
+static struct platform_driver clk_mt8196_apmixed_drv = {
+	.probe = clk_mt8196_apmixed_probe,
+	.remove = clk_mt8196_apmixed_remove,
+	.driver = {
+		.name = "clk-mt8196-apmixed",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_clk_mt8196_apmixed,
+	},
+};
+
+module_platform_driver(clk_mt8196_apmixed_drv);
+MODULE_LICENSE("GPL");