diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt6735-topckgen.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt6735-topckgen.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6735-topckgen.c b/drivers/clk/mediatek/clk-mt6735-topckgen.c new file mode 100644 index 000000000000..2589ebfe2271 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt6735-topckgen.c @@ -0,0 +1,394 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022 Yassine Oudjana <y.oudjana@protonmail.com> + */ + +#include <linux/clk-provider.h> +#include <linux/platform_device.h> + +#include "clk-mtk.h" +#include "clk-mux.h" + +#include <dt-bindings/clock/mediatek,mt6735-topckgen.h> + +#define CLK_CFG_0 0x40 +#define CLK_CFG_0_SET 0x44 +#define CLK_CFG_0_CLR 0x48 +#define CLK_CFG_1 0x50 +#define CLK_CFG_1_SET 0x54 +#define CLK_CFG_1_CLR 0x58 +#define CLK_CFG_2 0x60 +#define CLK_CFG_2_SET 0x64 +#define CLK_CFG_2_CLR 0x68 +#define CLK_CFG_3 0x70 +#define CLK_CFG_3_SET 0x74 +#define CLK_CFG_3_CLR 0x78 +#define CLK_CFG_4 0x80 +#define CLK_CFG_4_SET 0x84 +#define CLK_CFG_4_CLR 0x88 +#define CLK_CFG_5 0x90 +#define CLK_CFG_5_SET 0x94 +#define CLK_CFG_5_CLR 0x98 +#define CLK_CFG_6 0xa0 +#define CLK_CFG_6_SET 0xa4 +#define CLK_CFG_6_CLR 0xa8 +#define CLK_CFG_7 0xb0 +#define CLK_CFG_7_SET 0xb4 +#define CLK_CFG_7_CLR 0xb8 + +static DEFINE_SPINLOCK(mt6735_topckgen_lock); + +/* Some clocks with unknown details are modeled as fixed clocks */ +static const struct mtk_fixed_clk topckgen_fixed_clks[] = { + /* + * This clock is available as a parent option for multiple + * muxes and seems like an alternative name for clk26m at first, + * but it appears alongside it in several muxes which should + * mean it is a separate clock. + */ + FIXED_CLK(CLK_TOP_AD_SYS_26M_CK, "ad_sys_26m_ck", "clk26m", 26 * MHZ), + /* + * This clock is the parent of DMPLL divisors. It might be MEMPLL + * or its parent, as DMPLL appears to be an alternative name for + * MEMPLL. + */ + FIXED_CLK(CLK_TOP_CLKPH_MCK_O, "clkph_mck_o", NULL, 0), + /* + * DMPLL clock (dmpll_ck), controlled by DDRPHY. + */ + FIXED_CLK(CLK_TOP_DMPLL, "dmpll", "clkph_mck_o", 0), + /* + * MIPI DPI clock. Parent option for dpi0_sel. Unknown parent. + */ + FIXED_CLK(CLK_TOP_DPI_CK, "dpi_ck", NULL, 0), + /* + * This clock is a child of WHPLL which is controlled by + * the modem. + */ + FIXED_CLK(CLK_TOP_WHPLL_AUDIO_CK, "whpll_audio_ck", NULL, 0) +}; + +static const struct mtk_fixed_factor topckgen_factors[] = { + FACTOR(CLK_TOP_SYSPLL_D2, "syspll_d2", "mainpll", 1, 2), + FACTOR(CLK_TOP_SYSPLL_D3, "syspll_d3", "mainpll", 1, 3), + FACTOR(CLK_TOP_SYSPLL_D5, "syspll_d5", "mainpll", 1, 5), + FACTOR(CLK_TOP_SYSPLL1_D2, "syspll1_d2", "mainpll", 1, 2), + FACTOR(CLK_TOP_SYSPLL1_D4, "syspll1_d4", "mainpll", 1, 4), + FACTOR(CLK_TOP_SYSPLL1_D8, "syspll1_d8", "mainpll", 1, 8), + FACTOR(CLK_TOP_SYSPLL1_D16, "syspll1_d16", "mainpll", 1, 16), + FACTOR(CLK_TOP_SYSPLL2_D2, "syspll2_d2", "mainpll", 1, 2), + FACTOR(CLK_TOP_SYSPLL2_D4, "syspll2_d4", "mainpll", 1, 4), + FACTOR(CLK_TOP_SYSPLL3_D2, "syspll3_d2", "mainpll", 1, 2), + FACTOR(CLK_TOP_SYSPLL3_D4, "syspll3_d4", "mainpll", 1, 4), + FACTOR(CLK_TOP_SYSPLL4_D2, "syspll4_d2", "mainpll", 1, 2), + FACTOR(CLK_TOP_SYSPLL4_D4, "syspll4_d4", "mainpll", 1, 4), + FACTOR(CLK_TOP_UNIVPLL_D2, "univpll_d2", "univpll", 1, 2), + FACTOR(CLK_TOP_UNIVPLL_D3, "univpll_d3", "univpll", 1, 3), + FACTOR(CLK_TOP_UNIVPLL_D5, "univpll_d5", "univpll", 1, 5), + FACTOR(CLK_TOP_UNIVPLL_D26, "univpll_d26", "univpll", 1, 26), + FACTOR(CLK_TOP_UNIVPLL1_D2, "univpll1_d2", "univpll", 1, 2), + FACTOR(CLK_TOP_UNIVPLL1_D4, "univpll1_d4", "univpll", 1, 4), + FACTOR(CLK_TOP_UNIVPLL1_D8, "univpll1_d8", "univpll", 1, 8), + FACTOR(CLK_TOP_UNIVPLL2_D2, "univpll2_d2", "univpll", 1, 2), + FACTOR(CLK_TOP_UNIVPLL2_D4, "univpll2_d4", "univpll", 1, 4), + FACTOR(CLK_TOP_UNIVPLL2_D8, "univpll2_d8", "univpll", 1, 8), + FACTOR(CLK_TOP_UNIVPLL3_D2, "univpll3_d2", "univpll", 1, 2), + FACTOR(CLK_TOP_UNIVPLL3_D4, "univpll3_d4", "univpll", 1, 4), + FACTOR(CLK_TOP_MSDCPLL_D2, "msdcpll_d2", "msdcpll", 1, 2), + FACTOR(CLK_TOP_MSDCPLL_D4, "msdcpll_d4", "msdcpll", 1, 4), + FACTOR(CLK_TOP_MSDCPLL_D8, "msdcpll_d8", "msdcpll", 1, 8), + FACTOR(CLK_TOP_MSDCPLL_D16, "msdcpll_d16", "msdcpll", 1, 16), + FACTOR(CLK_TOP_VENCPLL_D3, "vencpll_d3", "vencpll", 1, 3), + FACTOR(CLK_TOP_TVDPLL_D2, "tvdpll_d2", "tvdpll", 1, 2), + FACTOR(CLK_TOP_TVDPLL_D4, "tvdpll_d4", "tvdpll", 1, 4), + FACTOR(CLK_TOP_DMPLL_D2, "dmpll_d2", "clkph_mck_o", 1, 2), + FACTOR(CLK_TOP_DMPLL_D4, "dmpll_d4", "clkph_mck_o", 1, 4), + FACTOR(CLK_TOP_DMPLL_D8, "dmpll_d8", "clkph_mck_o", 1, 8), + FACTOR(CLK_TOP_AD_SYS_26M_D2, "ad_sys_26m_d2", "clk26m", 1, 2) +}; + +static const char * const axi_sel_parents[] = { + "clk26m", + "syspll1_d2", + "syspll_d5", + "syspll1_d4", + "univpll_d5", + "univpll2_d2", + "dmpll", + "dmpll_d2" +}; + +static const char * const mem_sel_parents[] = { + "clk26m", + "dmpll" +}; + +static const char * const ddrphycfg_parents[] = { + "clk26m", + "syspll1_d8" +}; + +static const char * const mm_sel_parents[] = { + "clk26m", + "vencpll", + "syspll1_d2", + "syspll_d5", + "syspll1_d4", + "univpll_d5", + "univpll2_d2", + "dmpll" +}; + +static const char * const pwm_sel_parents[] = { + "clk26m", + "univpll2_d4", + "univpll3_d2", + "univpll1_d4" +}; + +static const char * const vdec_sel_parents[] = { + "clk26m", + "syspll1_d2", + "syspll_d5", + "syspll1_d4", + "univpll_d5", + "syspll_d2", + "syspll2_d2", + "msdcpll_d2" +}; + +static const char * const mfg_sel_parents[] = { + "clk26m", + "mmpll", + "clk26m", + "clk26m", + "clk26m", + "clk26m", + "clk26m", + "clk26m", + "clk26m", + "syspll_d3", + "syspll1_d2", + "syspll_d5", + "univpll_d3", + "univpll1_d2" +}; + +static const char * const camtg_sel_parents[] = { + "clk26m", + "univpll_d26", + "univpll2_d2", + "syspll3_d2", + "syspll3_d4", + "msdcpll_d4" +}; + +static const char * const uart_sel_parents[] = { + "clk26m", + "univpll2_d8" +}; + +static const char * const spi_sel_parents[] = { + "clk26m", + "syspll3_d2", + "msdcpll_d8", + "syspll2_d4", + "syspll4_d2", + "univpll2_d4", + "univpll1_d8" +}; + +static const char * const usb20_sel_parents[] = { + "clk26m", + "univpll1_d8", + "univpll3_d4" +}; + +static const char * const msdc50_0_sel_parents[] = { + "clk26m", + "syspll1_d2", + "syspll2_d2", + "syspll4_d2", + "univpll_d5", + "univpll1_d4" +}; + +static const char * const msdc30_0_sel_parents[] = { + "clk26m", + "msdcpll", + "msdcpll_d2", + "msdcpll_d4", + "syspll2_d2", + "syspll1_d4", + "univpll1_d4", + "univpll_d3", + "univpll_d26", + "syspll2_d4", + "univpll_d2" +}; + +static const char * const msdc30_1_2_sel_parents[] = { + "clk26m", + "univpll2_d2", + "msdcpll_d4", + "syspll2_d2", + "syspll1_d4", + "univpll1_d4", + "univpll_d26", + "syspll2_d4" +}; + +static const char * const msdc30_3_sel_parents[] = { + "clk26m", + "univpll2_d2", + "msdcpll_d4", + "syspll2_d2", + "syspll1_d4", + "univpll1_d4", + "univpll_d26", + "msdcpll_d16", + "syspll2_d4" +}; + +static const char * const audio_sel_parents[] = { + "clk26m", + "syspll3_d4", + "syspll4_d4", + "syspll1_d16" +}; + +static const char * const aud_intbus_sel_parents[] = { + "clk26m", + "syspll1_d4", + "syspll4_d2", + "dmpll_d4" +}; + +static const char * const pmicspi_sel_parents[] = { + "clk26m", + "syspll1_d8", + "syspll3_d4", + "syspll1_d16", + "univpll3_d4", + "univpll_d26", + "dmpll_d4", + "dmpll_d8" +}; + +static const char * const scp_sel_parents[] = { + "clk26m", + "syspll1_d8", + "dmpll_d2", + "dmpll_d4" +}; + +static const char * const atb_sel_parents[] = { + "clk26m", + "syspll1_d2", + "syspll_d5", + "dmpll" +}; + +static const char * const dpi0_sel_parents[] = { + "clk26m", + "tvdpll", + "tvdpll_d2", + "tvdpll_d4", + "dpi_ck" +}; + +static const char * const scam_sel_parents[] = { + "clk26m", + "syspll3_d2", + "univpll2_d4", + "vencpll_d3" +}; + +static const char * const mfg13m_sel_parents[] = { + "clk26m", + "ad_sys_26m_d2" +}; + +static const char * const aud_1_2_sel_parents[] = { + "clk26m", + "apll1" +}; + +static const char * const irda_sel_parents[] = { + "clk26m", + "univpll2_d4" +}; + +static const char * const irtx_sel_parents[] = { + "clk26m", + "ad_sys_26m_ck" +}; + +static const char * const disppwm_sel_parents[] = { + "clk26m", + "univpll2_d4", + "syspll4_d2_d8", + "ad_sys_26m_ck" +}; + +static const struct mtk_mux topckgen_muxes[] = { + MUX_CLR_SET_UPD(CLK_TOP_AXI_SEL, "axi_sel", axi_sel_parents, CLK_CFG_0, CLK_CFG_0_SET, CLK_CFG_0_CLR, 0, 3, 0, 0), + MUX_CLR_SET_UPD(CLK_TOP_MEM_SEL, "mem_sel", mem_sel_parents, CLK_CFG_0, CLK_CFG_0_SET, CLK_CFG_0_CLR, 8, 1, 0, 0), + MUX_CLR_SET_UPD(CLK_TOP_DDRPHY_SEL, "ddrphycfg_sel", ddrphycfg_parents, CLK_CFG_0, CLK_CFG_0_SET, CLK_CFG_0_CLR, 16, 1, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_MM_SEL, "mm_sel", mm_sel_parents, CLK_CFG_0, CLK_CFG_0_SET, CLK_CFG_0_CLR, 24, 3, 31, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_PWM_SEL, "pwm_sel", pwm_sel_parents, CLK_CFG_1, CLK_CFG_1_SET, CLK_CFG_1_CLR, 0, 2, 7, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_VDEC_SEL, "vdec_sel", vdec_sel_parents, CLK_CFG_1, CLK_CFG_1_SET, CLK_CFG_1_CLR, 8, 3, 15, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_MFG_SEL, "mfg_sel", mfg_sel_parents, CLK_CFG_1, CLK_CFG_1_SET, CLK_CFG_1_CLR, 16, 4, 23, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_CAMTG_SEL, "camtg_sel", camtg_sel_parents, CLK_CFG_1, CLK_CFG_1_SET, CLK_CFG_1_CLR, 24, 3, 31, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_UART_SEL, "uart_sel", uart_sel_parents, CLK_CFG_2, CLK_CFG_2_SET, CLK_CFG_2_CLR, 0, 1, 7, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_SPI_SEL, "spi_sel", spi_sel_parents, CLK_CFG_2, CLK_CFG_2_SET, CLK_CFG_2_CLR, 8, 3, 15, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_USB20_SEL, "usb20_sel", usb20_sel_parents, CLK_CFG_2, CLK_CFG_2_SET, CLK_CFG_2_CLR, 16, 2, 23, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_MSDC50_0_SEL, "msdc50_0_sel", msdc50_0_sel_parents, CLK_CFG_2, CLK_CFG_2_SET, CLK_CFG_2_CLR, 24, 3, 31, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_MSDC30_0_SEL, "msdc30_0_sel", msdc30_0_sel_parents, CLK_CFG_3, CLK_CFG_3_SET, CLK_CFG_3_CLR, 0, 4, 7, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_MSDC30_1_SEL, "msdc30_1_sel", msdc30_1_2_sel_parents, CLK_CFG_3, CLK_CFG_3_SET, CLK_CFG_3_CLR, 8, 3, 15, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_MSDC30_2_SEL, "msdc30_2_sel", msdc30_1_2_sel_parents, CLK_CFG_3, CLK_CFG_3_SET, CLK_CFG_3_CLR, 16, 3, 23, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_MSDC30_3_SEL, "msdc30_3_sel", msdc30_3_sel_parents, CLK_CFG_3, CLK_CFG_3_SET, CLK_CFG_3_CLR, 24, 4, 31, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_AUDIO_SEL, "audio_sel", audio_sel_parents, CLK_CFG_4, CLK_CFG_4_SET, CLK_CFG_4_CLR, 0, 2, 7, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_AUDINTBUS_SEL, "aud_intbus_sel", aud_intbus_sel_parents, CLK_CFG_4, CLK_CFG_4_SET, CLK_CFG_4_CLR, 8, 2, 15, 0, 0), + MUX_CLR_SET_UPD(CLK_TOP_PMICSPI_SEL, "pmicspi_sel", pmicspi_sel_parents, CLK_CFG_4, CLK_CFG_4_SET, CLK_CFG_4_CLR, 16, 3, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_SCP_SEL, "scp_sel", scp_sel_parents, CLK_CFG_4, CLK_CFG_4_SET, CLK_CFG_4_CLR, 24, 2, 31, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_ATB_SEL, "atb_sel", atb_sel_parents, CLK_CFG_5, CLK_CFG_5_SET, CLK_CFG_5_CLR, 0, 2, 7, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_DPI0_SEL, "dpi0_sel", dpi0_sel_parents, CLK_CFG_5, CLK_CFG_5_SET, CLK_CFG_5_CLR, 8, 3, 15, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_SCAM_SEL, "scam_sel", scam_sel_parents, CLK_CFG_5, CLK_CFG_5_SET, CLK_CFG_5_CLR, 16, 2, 23, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_MFG13M_SEL, "mfg13m_sel", mfg13m_sel_parents, CLK_CFG_5, CLK_CFG_5_SET, CLK_CFG_5_CLR, 24, 1, 31, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_AUD1_SEL, "aud_1_sel", aud_1_2_sel_parents, CLK_CFG_6, CLK_CFG_6_SET, CLK_CFG_6_CLR, 0, 1, 7, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_AUD2_SEL, "aud_2_sel", aud_1_2_sel_parents, CLK_CFG_6, CLK_CFG_6_SET, CLK_CFG_6_CLR, 8, 1, 15, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_IRDA_SEL, "irda_sel", irda_sel_parents, CLK_CFG_6, CLK_CFG_6_SET, CLK_CFG_6_CLR, 16, 1, 23, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_IRTX_SEL, "irtx_sel", irtx_sel_parents, CLK_CFG_6, CLK_CFG_6_SET, CLK_CFG_6_CLR, 24, 1, 31, 0, 0), + MUX_GATE_CLR_SET_UPD(CLK_TOP_DISPPWM_SEL, "disppwm_sel", disppwm_sel_parents, CLK_CFG_7, CLK_CFG_7_SET, CLK_CFG_7_CLR, 0, 2, 7, 0, 0), +}; + +static const struct mtk_clk_desc topckgen_desc = { + .fixed_clks = topckgen_fixed_clks, + .num_fixed_clks = ARRAY_SIZE(topckgen_fixed_clks), + .factor_clks = topckgen_factors, + .num_factor_clks = ARRAY_SIZE(topckgen_factors), + .mux_clks = topckgen_muxes, + .num_mux_clks = ARRAY_SIZE(topckgen_muxes), + .clk_lock = &mt6735_topckgen_lock, +}; + +static const struct of_device_id of_match_mt6735_topckgen[] = { + { .compatible = "mediatek,mt6735-topckgen", .data = &topckgen_desc}, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_mt6735_topckgen); + +static struct platform_driver clk_mt6735_topckgen = { + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt6735-topckgen", + .of_match_table = of_match_mt6735_topckgen, + }, +}; +module_platform_driver(clk_mt6735_topckgen); + +MODULE_AUTHOR("Yassine Oudjana <y.oudjana@protonmail.com>"); +MODULE_DESCRIPTION("MediaTek MT6735 topckgen clock driver"); +MODULE_LICENSE("GPL"); |