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authorGarmin.Chang <Garmin.Chang@mediatek.com>2023-03-31 15:36:20 +0300
committerStephen Boyd <sboyd@kernel.org>2023-03-31 21:51:22 +0300
commit1b5e5299dd35da0dff2d454826a60870237837da (patch)
tree77e83b48fc024214023230199cb5d3e4b017fcf5 /drivers/clk/mediatek
parentf42b9e9a43e300ef94c3dc0381cc60f50e46e1fe (diff)
downloadlinux-1b5e5299dd35da0dff2d454826a60870237837da.tar.xz
clk: mediatek: Add MT8188 imp i2c wrapper clock support
Add MT8188 imp i2c wrapper clock controllers which provide clock gate control in I2C IP blocks. Signed-off-by: Garmin.Chang <Garmin.Chang@mediatek.com> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230331123621.16167-19-Garmin.Chang@mediatek.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/mediatek')
-rw-r--r--drivers/clk/mediatek/Kconfig7
-rw-r--r--drivers/clk/mediatek/Makefile1
-rw-r--r--drivers/clk/mediatek/clk-mt8188-imp_iic_wrap.c80
3 files changed, 88 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 998cf4f559ea..afabdffded50 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -706,6 +706,13 @@ config COMMON_CLK_MT8188_IMGSYS
help
This driver supports MediaTek MT8188 imgsys and imgsys2 clocks.
+config COMMON_CLK_MT8188_IMP_IIC_WRAP
+ tristate "Clock driver for MediaTek MT8188 imp_iic_wrap"
+ depends on COMMON_CLK_MT8188
+ default COMMON_CLK_MT8188
+ help
+ This driver supports MediaTek MT8188 I2C/I3C clocks.
+
config COMMON_CLK_MT8188_IPESYS
tristate "Clock driver for MediaTek MT8188 ipesys"
depends on COMMON_CLK_MT8188_IMGSYS
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index df4e2da1ca49..7ef67ac366d8 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -104,6 +104,7 @@ obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o
clk-mt8188-peri_ao.o clk-mt8188-infra_ao.o
obj-$(CONFIG_COMMON_CLK_MT8188_CAMSYS) += clk-mt8188-cam.o clk-mt8188-ccu.o
obj-$(CONFIG_COMMON_CLK_MT8188_IMGSYS) += clk-mt8188-img.o
+obj-$(CONFIG_COMMON_CLK_MT8188_IMP_IIC_WRAP) += clk-mt8188-imp_iic_wrap.o
obj-$(CONFIG_COMMON_CLK_MT8188_IPESYS) += clk-mt8188-ipe.o
obj-$(CONFIG_COMMON_CLK_MT8188_MFGCFG) += clk-mt8188-mfg.o
obj-$(CONFIG_COMMON_CLK_MT8188_VDECSYS) += clk-mt8188-vdec.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..2238d2984320
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8188-imp_iic_wrap.c
@@ -0,0 +1,80 @@
+// 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 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 */ }
+};
+MODULE_DEVICE_TABLE(platform, of_match_clk_mt8188_imp_iic_wrap);
+
+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,
+ },
+};
+
+module_platform_driver(clk_mt8188_imp_iic_wrap_drv);
+MODULE_LICENSE("GPL");