clk: mediatek: Add MT8188 infrastructure clock support

Add MT8188 infrastructure clock controller which provides
clock gate control for basic IP like pwm, uart, spi and so on.

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/20230331123621.16167-6-Garmin.Chang@mediatek.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 199 insertions, 0 deletions

diff --git a/drivers/clk/mediatek/clk-mt8188-infra_ao.c b/drivers/clk/mediatek/clk-mt8188-infra_ao.c
new file mode 100644
index 000000000000..91c35db40b4e
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8188-infra_ao.c
@@ -0,0 +1,199 @@
+// 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 infra_ao0_cg_regs = {
+	.set_ofs = 0x80,
+	.clr_ofs = 0x84,
+	.sta_ofs = 0x90,
+};
+
+static const struct mtk_gate_regs infra_ao1_cg_regs = {
+	.set_ofs = 0x88,
+	.clr_ofs = 0x8c,
+	.sta_ofs = 0x94,
+};
+
+static const struct mtk_gate_regs infra_ao2_cg_regs = {
+	.set_ofs = 0xa4,
+	.clr_ofs = 0xa8,
+	.sta_ofs = 0xac,
+};
+
+static const struct mtk_gate_regs infra_ao3_cg_regs = {
+	.set_ofs = 0xc0,
+	.clr_ofs = 0xc4,
+	.sta_ofs = 0xc8,
+};
+
+static const struct mtk_gate_regs infra_ao4_cg_regs = {
+	.set_ofs = 0xe0,
+	.clr_ofs = 0xe4,
+	.sta_ofs = 0xe8,
+};
+
+#define GATE_INFRA_AO0_FLAGS(_id, _name, _parent, _shift, _flag)                \
+	GATE_MTK_FLAGS(_id, _name, _parent, &infra_ao0_cg_regs, _shift, \
+		&mtk_clk_gate_ops_setclr, _flag)
+
+#define GATE_INFRA_AO0(_id, _name, _parent, _shift)	\
+	GATE_INFRA_AO0_FLAGS(_id, _name, _parent, _shift, 0)
+
+#define GATE_INFRA_AO1_FLAGS(_id, _name, _parent, _shift, _flag)		\
+	GATE_MTK_FLAGS(_id, _name, _parent, &infra_ao1_cg_regs, _shift,	\
+		&mtk_clk_gate_ops_setclr, _flag)
+
+#define GATE_INFRA_AO1(_id, _name, _parent, _shift)	\
+	GATE_INFRA_AO1_FLAGS(_id, _name, _parent, _shift, 0)
+
+#define GATE_INFRA_AO2(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &infra_ao2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+#define GATE_INFRA_AO2_FLAGS(_id, _name, _parent, _shift, _flag)		\
+	GATE_MTK_FLAGS(_id, _name, _parent, &infra_ao2_cg_regs, _shift,	\
+		&mtk_clk_gate_ops_setclr, _flag)
+
+#define GATE_INFRA_AO3_FLAGS(_id, _name, _parent, _shift, _flag)		\
+	GATE_MTK_FLAGS(_id, _name, _parent, &infra_ao3_cg_regs, _shift,	\
+		&mtk_clk_gate_ops_setclr, _flag)
+
+#define GATE_INFRA_AO3(_id, _name, _parent, _shift)	\
+	GATE_INFRA_AO3_FLAGS(_id, _name, _parent, _shift, 0)
+
+#define GATE_INFRA_AO4_FLAGS(_id, _name, _parent, _shift, _flag)		\
+	GATE_MTK_FLAGS(_id, _name, _parent, &infra_ao4_cg_regs, _shift,	\
+		&mtk_clk_gate_ops_setclr, _flag)
+
+#define GATE_INFRA_AO4(_id, _name, _parent, _shift)	\
+	GATE_INFRA_AO4_FLAGS(_id, _name, _parent, _shift, 0)
+
+static const struct mtk_gate infra_ao_clks[] = {
+	/* INFRA_AO0 */
+	GATE_INFRA_AO0(CLK_INFRA_AO_PMIC_TMR, "infra_ao_pmic_tmr", "top_pwrap_ulposc", 0),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PMIC_AP, "infra_ao_pmic_ap", "top_pwrap_ulposc", 1),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PMIC_MD, "infra_ao_pmic_md", "top_pwrap_ulposc", 2),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PMIC_CONN, "infra_ao_pmic_conn", "top_pwrap_ulposc", 3),
+	/* infra_ao_sej is main clock is for secure engine with JTAG support */
+	GATE_INFRA_AO0_FLAGS(CLK_INFRA_AO_SEJ, "infra_ao_sej", "top_axi", 5, CLK_IS_CRITICAL),
+	GATE_INFRA_AO0(CLK_INFRA_AO_APXGPT, "infra_ao_apxgpt", "top_axi", 6),
+	GATE_INFRA_AO0(CLK_INFRA_AO_GCE, "infra_ao_gce", "top_axi", 8),
+	GATE_INFRA_AO0(CLK_INFRA_AO_GCE2, "infra_ao_gce2", "top_axi", 9),
+	GATE_INFRA_AO0(CLK_INFRA_AO_THERM, "infra_ao_therm", "top_axi", 10),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PWM_HCLK, "infra_ao_pwm_h", "top_axi", 15),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PWM1, "infra_ao_pwm1", "top_pwm", 16),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PWM2, "infra_ao_pwm2", "top_pwm", 17),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PWM3, "infra_ao_pwm3", "top_pwm", 18),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PWM4, "infra_ao_pwm4", "top_pwm", 19),
+	GATE_INFRA_AO0(CLK_INFRA_AO_PWM, "infra_ao_pwm", "top_pwm", 21),
+	GATE_INFRA_AO0(CLK_INFRA_AO_UART0, "infra_ao_uart0", "top_uart", 22),
+	GATE_INFRA_AO0(CLK_INFRA_AO_UART1, "infra_ao_uart1", "top_uart", 23),
+	GATE_INFRA_AO0(CLK_INFRA_AO_UART2, "infra_ao_uart2", "top_uart", 24),
+	GATE_INFRA_AO0(CLK_INFRA_AO_UART3, "infra_ao_uart3", "top_uart", 25),
+	GATE_INFRA_AO0(CLK_INFRA_AO_UART4, "infra_ao_uart4", "top_uart", 26),
+	GATE_INFRA_AO0(CLK_INFRA_AO_GCE_26M, "infra_ao_gce_26m", "clk26m", 27),
+	GATE_INFRA_AO0(CLK_INFRA_AO_CQ_DMA_FPC, "infra_ao_dma", "pad_fpc_ck", 28),
+	GATE_INFRA_AO0(CLK_INFRA_AO_UART5, "infra_ao_uart5", "top_uart", 29),
+	/* INFRA_AO1 */
+	GATE_INFRA_AO1(CLK_INFRA_AO_HDMI_26M, "infra_ao_hdmi_26m", "clk26m", 0),
+	GATE_INFRA_AO1(CLK_INFRA_AO_SPI0, "infra_ao_spi0", "top_spi", 1),
+	GATE_INFRA_AO1(CLK_INFRA_AO_MSDC0, "infra_ao_msdc0", "top_msdc5hclk", 2),
+	GATE_INFRA_AO1(CLK_INFRA_AO_MSDC1, "infra_ao_msdc1", "top_axi", 4),
+	GATE_INFRA_AO1(CLK_INFRA_AO_MSDC2, "infra_ao_msdc2", "top_axi", 5),
+	GATE_INFRA_AO1(CLK_INFRA_AO_MSDC0_SRC, "infra_ao_msdc0_clk", "top_msdc50_0", 6),
+	/* infra_ao_dvfsrc is for internal DVFS usage, should not be handled by Linux. */
+	GATE_INFRA_AO1_FLAGS(CLK_INFRA_AO_DVFSRC, "infra_ao_dvfsrc",
+			     "clk26m", 7, CLK_IS_CRITICAL),
+	GATE_INFRA_AO1(CLK_INFRA_AO_TRNG, "infra_ao_trng", "top_axi", 9),
+	GATE_INFRA_AO1(CLK_INFRA_AO_AUXADC, "infra_ao_auxadc", "clk26m", 10),
+	GATE_INFRA_AO1(CLK_INFRA_AO_CPUM, "infra_ao_cpum", "top_axi", 11),
+	GATE_INFRA_AO1(CLK_INFRA_AO_HDMI_32K, "infra_ao_hdmi_32k", "clk32k", 12),
+	GATE_INFRA_AO1(CLK_INFRA_AO_CEC_66M_HCLK, "infra_ao_cec_66m_hclk", "top_axi", 13),
+	GATE_INFRA_AO1(CLK_INFRA_AO_PCIE_TL_26M, "infra_ao_pcie_tl_26m", "clk26m", 15),
+	GATE_INFRA_AO1(CLK_INFRA_AO_MSDC1_SRC, "infra_ao_msdc1_clk", "top_msdc30_1", 16),
+	GATE_INFRA_AO1(CLK_INFRA_AO_CEC_66M_BCLK, "infra_ao_cec_66m_bclk", "top_axi", 17),
+	GATE_INFRA_AO1(CLK_INFRA_AO_PCIE_TL_96M, "infra_ao_pcie_tl_96m", "top_tl", 18),
+	/* infra_ao_dapc is for device access permission control module */
+	GATE_INFRA_AO1_FLAGS(CLK_INFRA_AO_DEVICE_APC, "infra_ao_dapc",
+			     "top_axi", 20, CLK_IS_CRITICAL),
+	GATE_INFRA_AO1(CLK_INFRA_AO_ECC_66M_HCLK, "infra_ao_ecc_66m_hclk", "top_axi", 23),
+	GATE_INFRA_AO1(CLK_INFRA_AO_DEBUGSYS, "infra_ao_debugsys", "top_axi", 24),
+	GATE_INFRA_AO1(CLK_INFRA_AO_AUDIO, "infra_ao_audio", "top_axi", 25),
+	GATE_INFRA_AO1(CLK_INFRA_AO_PCIE_TL_32K, "infra_ao_pcie_tl_32k", "clk32k", 26),
+	GATE_INFRA_AO1(CLK_INFRA_AO_DBG_TRACE, "infra_ao_dbg_trace", "top_axi", 29),
+	GATE_INFRA_AO1(CLK_INFRA_AO_DRAMC_F26M, "infra_ao_dramc26", "clk26m", 31),
+	/* INFRA_AO2 */
+	GATE_INFRA_AO2(CLK_INFRA_AO_IRTX, "infra_ao_irtx", "top_axi", 0),
+	GATE_INFRA_AO2(CLK_INFRA_AO_DISP_PWM, "infra_ao_disp_pwm", "top_disp_pwm0", 2),
+	GATE_INFRA_AO2(CLK_INFRA_AO_CLDMA_BCLK, "infra_ao_cldmabclk", "top_axi", 3),
+	GATE_INFRA_AO2(CLK_INFRA_AO_AUDIO_26M_BCLK, "infra_ao_audio26m", "clk26m", 4),
+	GATE_INFRA_AO2(CLK_INFRA_AO_SPI1, "infra_ao_spi1", "top_spi", 6),
+	GATE_INFRA_AO2(CLK_INFRA_AO_SPI2, "infra_ao_spi2", "top_spi", 9),
+	GATE_INFRA_AO2(CLK_INFRA_AO_SPI3, "infra_ao_spi3", "top_spi", 10),
+	GATE_INFRA_AO2_FLAGS(CLK_INFRA_AO_FSSPM, "infra_ao_fsspm",
+			     "top_sspm", 15, CLK_IS_CRITICAL),
+	GATE_INFRA_AO2_FLAGS(CLK_INFRA_AO_SSPM_BUS_HCLK, "infra_ao_sspm_hclk",
+			     "top_axi", 17, CLK_IS_CRITICAL),
+	GATE_INFRA_AO2(CLK_INFRA_AO_APDMA_BCLK, "infra_ao_apdma_bclk", "top_axi", 18),
+	GATE_INFRA_AO2(CLK_INFRA_AO_SPI4, "infra_ao_spi4", "top_spi", 25),
+	GATE_INFRA_AO2(CLK_INFRA_AO_SPI5, "infra_ao_spi5", "top_spi", 26),
+	GATE_INFRA_AO2(CLK_INFRA_AO_CQ_DMA, "infra_ao_cq_dma", "top_axi", 27),
+	/* INFRA_AO3 */
+	GATE_INFRA_AO3(CLK_INFRA_AO_MSDC0_SELF, "infra_ao_msdc0sf", "top_msdc50_0", 0),
+	GATE_INFRA_AO3(CLK_INFRA_AO_MSDC1_SELF, "infra_ao_msdc1sf", "top_msdc50_0", 1),
+	GATE_INFRA_AO3(CLK_INFRA_AO_MSDC2_SELF, "infra_ao_msdc2sf", "top_msdc50_0", 2),
+	GATE_INFRA_AO3(CLK_INFRA_AO_I2S_DMA, "infra_ao_i2s_dma", "top_axi", 5),
+	GATE_INFRA_AO3(CLK_INFRA_AO_AP_MSDC0, "infra_ao_ap_msdc0", "top_msdc50_0", 7),
+	GATE_INFRA_AO3(CLK_INFRA_AO_MD_MSDC0, "infra_ao_md_msdc0", "top_msdc50_0", 8),
+	GATE_INFRA_AO3(CLK_INFRA_AO_MSDC30_2, "infra_ao_msdc30_2", "top_msdc30_2", 9),
+	GATE_INFRA_AO3(CLK_INFRA_AO_GCPU, "infra_ao_gcpu", "top_gcpu", 10),
+	GATE_INFRA_AO3(CLK_INFRA_AO_PCIE_PERI_26M, "infra_ao_pcie_peri_26m", "clk26m", 15),
+	GATE_INFRA_AO3(CLK_INFRA_AO_GCPU_66M_BCLK, "infra_ao_gcpu_66m_bclk", "top_axi", 16),
+	GATE_INFRA_AO3(CLK_INFRA_AO_GCPU_133M_BCLK, "infra_ao_gcpu_133m_bclk", "top_axi", 17),
+	GATE_INFRA_AO3(CLK_INFRA_AO_DISP_PWM1, "infra_ao_disp_pwm1", "top_disp_pwm1", 20),
+	GATE_INFRA_AO3(CLK_INFRA_AO_FBIST2FPC, "infra_ao_fbist2fpc", "top_msdc50_0", 24),
+	/* infra_ao_dapc_sync is for device access permission control module */
+	GATE_INFRA_AO3_FLAGS(CLK_INFRA_AO_DEVICE_APC_SYNC, "infra_ao_dapc_sync",
+			     "top_axi", 25, CLK_IS_CRITICAL),
+	GATE_INFRA_AO3(CLK_INFRA_AO_PCIE_P1_PERI_26M, "infra_ao_pcie_p1_peri_26m", "clk26m", 26),
+	/* INFRA_AO4 */
+	/* infra_ao_133m_mclk_set/infra_ao_66m_mclk_set are main clocks of peripheral */
+	GATE_INFRA_AO4_FLAGS(CLK_INFRA_AO_133M_MCLK_CK, "infra_ao_133m_mclk_set",
+			     "top_axi", 0, CLK_IS_CRITICAL),
+	GATE_INFRA_AO4_FLAGS(CLK_INFRA_AO_66M_MCLK_CK, "infra_ao_66m_mclk_set",
+			     "top_axi", 1, CLK_IS_CRITICAL),
+	GATE_INFRA_AO4(CLK_INFRA_AO_PCIE_PL_P_250M_P0, "infra_ao_pcie_pl_p_250m_p0",
+		       "pextp_pipe", 7),
+	GATE_INFRA_AO4(CLK_INFRA_AO_RG_AES_MSDCFDE_CK_0P,
+		       "infra_ao_aes_msdcfde_0p", "top_aes_msdcfde", 18),
+};
+
+static const struct mtk_clk_desc infra_ao_desc = {
+	.clks = infra_ao_clks,
+	.num_clks = ARRAY_SIZE(infra_ao_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8188_infra_ao[] = {
+	{ .compatible = "mediatek,mt8188-infracfg-ao", .data = &infra_ao_desc },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_infra_ao);
+
+static struct platform_driver clk_mt8188_infra_ao_drv = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt8188-infra_ao",
+		.of_match_table = of_match_clk_mt8188_infra_ao,
+	},
+};
+module_platform_driver(clk_mt8188_infra_ao_drv);
+MODULE_LICENSE("GPL");