[PATCH v2 05/15] clk: mediatek: Add MT8186 apmixedsys clock support

Chun-Jie Chen
2022-02-21T01:59:19Z

Add MT8186 apmixedsys clock controller which provides Plls
generated from SoC.

Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/clk/mediatek/Makefile | 3 +-
drivers/clk/mediatek/clk-mt8186-apmixedsys.c | 133 +++++++++++++++++++
2 files changed, 135 insertions(+), 1 deletion(-)
create mode 100644 drivers/clk/mediatek/clk-mt8186-apmixedsys.c

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index 657d43e33d3c..54ef957389ef 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -71,7 +71,8 @@ obj-$(CONFIG_COMMON_CLK_MT8183_MFGCFG) += clk-mt8183-mfgcfg.o
obj-$(CONFIG_COMMON_CLK_MT8183_MMSYS) += clk-mt8183-mm.o
obj-$(CONFIG_COMMON_CLK_MT8183_VDECSYS) += clk-mt8183-vdec.o
obj-$(CONFIG_COMMON_CLK_MT8183_VENCSYS) += clk-mt8183-venc.o
-obj-$(CONFIG_COMMON_CLK_MT8186) += clk-mt8186-mcu.o clk-mt8186-topckgen.o clk-mt8186-infra_ao.o
+obj-$(CONFIG_COMMON_CLK_MT8186) += clk-mt8186-mcu.o clk-mt8186-topckgen.o clk-mt8186-infra_ao.o \
+ clk-mt8186-apmixedsys.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-apmixedsys.c b/drivers/clk/mediatek/clk-mt8186-apmixedsys.c
new file mode 100644
index 000000000000..f07d464f908b
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8186-apmixedsys.c
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2022 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+#include "clk-mtk.h"
+#include "clk-pll.h"
+
+#include <dt-bindings/clock/mt8186-clk.h>
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#define MT8186_PLL_FMAX (3800UL * MHZ)
+#define MT8186_PLL_FMIN (1500UL * MHZ)
+#define MT8186_INTEGER_BITS (8)
+
+#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, \
+ _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift, \
+ _tuner_reg, _tuner_en_reg, _tuner_en_bit, \
+ _pcw_reg) { \
+ .id = _id, \
+ .name = _name, \
+ .reg = _reg, \
+ .pwr_reg = _pwr_reg, \
+ .en_mask = _en_mask, \
+ .flags = _flags, \
+ .rst_bar_mask = _rst_bar_mask, \
+ .fmax = MT8186_PLL_FMAX, \
+ .fmin = MT8186_PLL_FMIN, \
+ .pcwbits = _pcwbits, \
+ .pcwibits = MT8186_INTEGER_BITS, \
+ .pd_reg = _pd_reg, \
+ .pd_shift = _pd_shift, \
+ .tuner_reg = _tuner_reg, \
+ .tuner_en_reg = _tuner_en_reg, \
+ .tuner_en_bit = _tuner_en_bit, \
+ .pcw_reg = _pcw_reg, \
+ .pcw_shift = 0, \
+ .pcw_chg_reg = 0, \
+ .en_reg = 0, \
+ .pll_en_bit = 0, \
+ }
+
+static const struct mtk_pll_data plls[] = {
+ /*
+ * armpll_ll/armpll_bl/ccipll are main clock source of AP MCU,
+ * should not be closed in Linux world.
+ */
+ PLL(CLK_APMIXED_ARMPLL_LL, "armpll_ll", 0x0204, 0x0210, 0,
+ PLL_AO, 0, 22, 0x0208, 24, 0, 0, 0, 0x0208),
+ PLL(CLK_APMIXED_ARMPLL_BL, "armpll_bl", 0x0214, 0x0220, 0,
+ PLL_AO, 0, 22, 0x0218, 24, 0, 0, 0, 0x0218),
+ PLL(CLK_APMIXED_CCIPLL, "ccipll", 0x0224, 0x0230, 0,
+ PLL_AO, 0, 22, 0x0228, 24, 0, 0, 0, 0x0228),
+ PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x0244, 0x0250, 0xff000000,
+ HAVE_RST_BAR, BIT(23), 22, 0x0248, 24, 0, 0, 0, 0x0248),
+ PLL(CLK_APMIXED_UNIV2PLL, "univ2pll", 0x0324, 0x0330, 0xff000000,
+ HAVE_RST_BAR, BIT(23), 22, 0x0328, 24, 0, 0, 0, 0x0328),
+ PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x038C, 0x0398, 0,
+ 0, 0, 22, 0x0390, 24, 0, 0, 0, 0x0390),
+ PLL(CLK_APMIXED_MMPLL, "mmpll", 0x0254, 0x0260, 0,
+ 0, 0, 22, 0x0258, 24, 0, 0, 0, 0x0258),
+ PLL(CLK_APMIXED_NNAPLL, "nnapll", 0x035C, 0x0368, 0,
+ 0, 0, 22, 0x0360, 24, 0, 0, 0, 0x0360),
+ PLL(CLK_APMIXED_NNA2PLL, "nna2pll", 0x036C, 0x0378, 0,
+ 0, 0, 22, 0x0370, 24, 0, 0, 0, 0x0370),
+ PLL(CLK_APMIXED_ADSPPLL, "adsppll", 0x0304, 0x0310, 0,
+ 0, 0, 22, 0x0308, 24, 0, 0, 0, 0x0308),
+ PLL(CLK_APMIXED_MFGPLL, "mfgpll", 0x0314, 0x0320, 0,
+ 0, 0, 22, 0x0318, 24, 0, 0, 0, 0x0318),
+ PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x0264, 0x0270, 0,
+ 0, 0, 22, 0x0268, 24, 0, 0, 0, 0x0268),
+ PLL(CLK_APMIXED_APLL1, "apll1", 0x0334, 0x0344, 0,
+ 0, 0, 32, 0x0338, 24, 0x0040, 0x000C, 0, 0x033C),
+ PLL(CLK_APMIXED_APLL2, "apll2", 0x0348, 0x0358, 0,
+ 0, 0, 32, 0x034C, 24, 0x0044, 0x000C, 5, 0x0350),
+};
+
+static const struct of_device_id of_match_clk_mt8186_apmixed[] = {
+ { .compatible = "mediatek,mt8186-apmixedsys", },
+ {}
+};
+
+static int clk_mt8186_apmixed_probe(struct platform_device *pdev)
+{
+ struct clk_onecell_data *clk_data;
+ struct device_node *node = pdev->dev.of_node;
+ int r;
+
+ clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
+ if (!clk_data)
+ return -ENOMEM;
+
+ r = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data);
+ if (r)
+ goto free_apmixed_data;
+
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ if (r)
+ goto unregister_plls;
+
+ platform_set_drvdata(pdev, clk_data);
+
+ return r;
+
+unregister_plls:
+ mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
+free_apmixed_data:
+ mtk_free_clk_data(clk_data);
+ return r;
+}
+
+static int clk_mt8186_apmixed_remove(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct clk_onecell_data *clk_data = platform_get_drvdata(pdev);
+
+ of_clk_del_provider(node);
+ mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
+ mtk_free_clk_data(clk_data);
+
+ return 0;
+}
+
+static struct platform_driver clk_mt8186_apmixed_drv = {
+ .probe = clk_mt8186_apmixed_probe,
+ .remove = clk_mt8186_apmixed_remove,
+ .driver = {
+ .name = "clk-mt8186-apmixed",
+ .of_match_table = of_match_clk_mt8186_apmixed,
+ },
+};
+builtin_platform_driver(clk_mt8186_apmixed_drv);
--
2.18.0