[PATCH v6 18/19] clk: mediatek: Add MT8188 imp i2c wrapper clock support
From: Garmin.Chang <hidden>
Date: 2023-03-09 14:03:21
Also in:
linux-mediatek
Subsystem:
common clk framework, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Linus Torvalds
Add MT8188 imp i2c wrapper clock controllers which provide clock gate control in I2C IP blocks. Signed-off-by: Garmin.Chang <redacted> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> --- drivers/clk/mediatek/Makefile | 3 +- .../clk/mediatek/clk-mt8188-imp_iic_wrap.c | 78 +++++++++++++++++++ 2 files changed, 80 insertions(+), 1 deletion(-) create mode 100644 drivers/clk/mediatek/clk-mt8188-imp_iic_wrap.c
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index a7b8dcf9c0bc..0e75308e31d7 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile@@ -96,7 +96,8 @@ obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o clk-mt8188-cam.o clk-mt8188-ccu.o clk-mt8188-img.o \ clk-mt8188-ipe.o clk-mt8188-mfg.o clk-mt8188-vdec.o \ clk-mt8188-vdo0.o clk-mt8188-vdo1.o clk-mt8188-venc.o \ - clk-mt8188-vpp0.o clk-mt8188-vpp1.o clk-mt8188-wpe.o + clk-mt8188-vpp0.o clk-mt8188-vpp1.o clk-mt8188-wpe.o \ + clk-mt8188-imp_iic_wrap.o obj-$(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-imp_iic_wrap.c b/drivers/clk/mediatek/clk-mt8188-imp_iic_wrap.c
new file mode 100644
index 000000000000..e9b951f95fba
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8188-imp_iic_wrap.c@@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright (c) 2022 MediaTek Inc. +// Author: Garmin Chang <garmin.chang@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 imp_iic_wrap_cg_regs = { + .set_ofs = 0xe08, + .clr_ofs = 0xe04, + .sta_ofs = 0xe00, +}; + +#define GATE_IMP_IIC_WRAP(_id, _name, _parent, _shift) \ + GATE_MTK_FLAGS(_id, _name, _parent, &imp_iic_wrap_cg_regs, _shift, \ + &mtk_clk_gate_ops_setclr, CLK_OPS_PARENT_ENABLE) + +static const struct mtk_gate imp_iic_wrap_c_clks[] = { + GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C0, + "imp_iic_wrap_c_ap_clock_i2c0", "top_i2c", 0), + GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C2, + "imp_iic_wrap_c_ap_clock_i2c2", "top_i2c", 1), + GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C3, + "imp_iic_wrap_c_ap_clock_i2c3", "top_i2c", 2), +}; + +static const struct mtk_gate imp_iic_wrap_w_clks[] = { + GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_W_AP_CLOCK_I2C1, + "imp_iic_wrap_w_ap_clock_i2c1", "top_i2c", 0), + GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_W_AP_CLOCK_I2C4, + "imp_iic_wrap_w_ap_clock_i2c4", "top_i2c", 1), +}; + +static const struct mtk_gate imp_iic_wrap_en_clks[] = { + GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_EN_AP_CLOCK_I2C5, + "imp_iic_wrap_en_ap_clock_i2c5", "top_i2c", 0), + GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_EN_AP_CLOCK_I2C6, + "imp_iic_wrap_en_ap_clock_i2c6", "top_i2c", 1), +}; + +static const struct mtk_clk_desc imp_iic_wrap_c_desc = { + .clks = imp_iic_wrap_c_clks, + .num_clks = ARRAY_SIZE(imp_iic_wrap_c_clks), +}; + +static const struct mtk_clk_desc imp_iic_wrap_w_desc = { + .clks = imp_iic_wrap_w_clks, + .num_clks = ARRAY_SIZE(imp_iic_wrap_w_clks), +}; + +static const struct mtk_clk_desc imp_iic_wrap_en_desc = { + .clks = imp_iic_wrap_en_clks, + .num_clks = ARRAY_SIZE(imp_iic_wrap_en_clks), +}; + +static const struct of_device_id of_match_clk_mt8188_imp_iic_wrap[] = { + { .compatible = "mediatek,mt8188-imp-iic-wrap-c", .data = &imp_iic_wrap_c_desc }, + { .compatible = "mediatek,mt8188-imp-iic-wrap-w", .data = &imp_iic_wrap_w_desc }, + { .compatible = "mediatek,mt8188-imp-iic-wrap-en", .data = &imp_iic_wrap_en_desc }, + { /* sentinel */ } +}; + +static struct platform_driver clk_mt8188_imp_iic_wrap_drv = { + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt8188-imp_iic_wrap", + .of_match_table = of_match_clk_mt8188_imp_iic_wrap, + }, +}; + +builtin_platform_driver(clk_mt8188_imp_iic_wrap_drv); +MODULE_LICENSE("GPL");
--
2.18.0
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