Add clock driver for Sunplus SP7021 SoC. Signed-off-by: Qin Jian <qinjian@xxxxxxxxxxx> --- Fix the comments from Stephen Boyd. --- MAINTAINERS | 1 + drivers/clk/Kconfig | 9 + drivers/clk/Makefile | 1 + drivers/clk/clk-sp7021.c | 753 +++++++++++++++++++++++++++++++++++++++ 4 files changed, 764 insertions(+) create mode 100644 drivers/clk/clk-sp7021.c diff --git a/MAINTAINERS b/MAINTAINERS index 90ebb823f..5069f552f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2663,6 +2663,7 @@ W: https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview F: Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml F: Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml F: Documentation/devicetree/bindings/reset/sunplus,reset.yaml +F: drivers/clk/clk-sp7021.c F: drivers/reset/reset-sunplus.c F: include/dt-bindings/clock/sp-sp7021.h F: include/dt-bindings/reset/sp-sp7021.h diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index c5b3dc973..91656de22 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -334,6 +334,15 @@ config COMMON_CLK_VC5 This driver supports the IDT VersaClock 5 and VersaClock 6 programmable clock generators. +config COMMON_CLK_SP7021 + bool "Clock driver for Sunplus SP7021 SoC" + default SOC_SP7021 + help + This driver supports the Sunplus SP7021 SoC clocks. + It implements SP7021 PLLs/gate. + Not all features of the PLL are currently supported + by the driver. + config COMMON_CLK_STM32MP157 def_bool COMMON_CLK && MACH_STM32MP157 help diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index e42312121..f15bb5070 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -60,6 +60,7 @@ obj-$(CONFIG_COMMON_CLK_SI5351) += clk-si5351.o obj-$(CONFIG_COMMON_CLK_SI514) += clk-si514.o obj-$(CONFIG_COMMON_CLK_SI544) += clk-si544.o obj-$(CONFIG_COMMON_CLK_SI570) += clk-si570.o +obj-$(CONFIG_COMMON_CLK_SP7021) += clk-sp7021.o obj-$(CONFIG_COMMON_CLK_STM32F) += clk-stm32f4.o obj-$(CONFIG_COMMON_CLK_STM32H7) += clk-stm32h7.o obj-$(CONFIG_COMMON_CLK_STM32MP157) += clk-stm32mp1.o diff --git a/drivers/clk/clk-sp7021.c b/drivers/clk/clk-sp7021.c new file mode 100644 index 000000000..8a3e28a2a --- /dev/null +++ b/drivers/clk/clk-sp7021.c @@ -0,0 +1,753 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright (C) Sunplus Technology Co., Ltd. + * All rights reserved. + */ +//#define DEBUG +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/bitfield.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <dt-bindings/clock/sp-sp7021.h> + +#define REG(i) (pll_regs + (i) * 4) + +#define PLLA_CTL REG(7) +#define PLLE_CTL REG(12) +#define PLLF_CTL REG(13) +#define PLLTV_CTL REG(14) +#define PLLSYS_CTL REG(26) + +/* speical div_width values for PLLTV/PLLA */ +#define DIV_TV 33 +#define DIV_A 34 + +/* PLLTV parameters */ +enum { + SEL_FRA, + SDM_MOD, + PH_SEL, + NFRA, + DIVR, + DIVN, + DIVM, + P_MAX +}; + +#define MASK_SEL_FRA GENMASK(1, 1) +#define MASK_SDM_MOD GENMASK(2, 2) +#define MASK_PH_SEL GENMASK(4, 4) +#define MASK_NFRA GENMASK(12, 6) +#define MASK_DIVR GENMASK(8, 7) +#define MASK_DIVN GENMASK(7, 0) +#define MASK_DIVM GENMASK(14, 8) + +/* HIWORD_MASK FIELD_PREP */ +#define HWM_FIELD_PREP(mask, value) \ +({ \ + u32 m = mask; \ + (m << 16) | FIELD_PREP(m, value); \ +}) + +struct sp_pll { + struct clk_hw hw; + void __iomem *reg; + spinlock_t *lock; /* lock for reg */ + int div_shift; + int div_width; + int pd_bit; /* power down bit idx */ + int bp_bit; /* bypass bit idx */ + unsigned long brate; /* base rate, TODO: replace brate with muldiv */ + u32 p[P_MAX]; /* for hold PLLTV/PLLA parameters */ +}; + +#define to_sp_pll(_hw) container_of(_hw, struct sp_pll, hw) + +#define clk_regs (sp_clk_base + 0x000) /* G0 ~ CLKEN */ +#define pll_regs (sp_clk_base + 0x200) /* G4 ~ PLL */ +static void __iomem *sp_clk_base; +static struct clk_hw_onecell_data *sp_clk_data; + +#define F_CRITICAL BIT(31) /* clock is critical */ +#define F_EXTCLK BIT(16) /* parent clock is EXTCLK */ +const struct clk_parent_data parents[] = { + { .name = "pllsys" }, + { .name = "extclk" }, + { .name = "plle" }, +}; + +#define PD_PLLSYS (&parents[0]) +#define PD_EXTCLK (&parents[1]) +#define PD_PLLE (&parents[2]) + +static const u32 gates[] = { + CLK_SYSTEM | F_CRITICAL, + CLK_RTC, + CLK_IOCTL | F_CRITICAL, + CLK_IOP | F_CRITICAL, + CLK_OTPRX, + CLK_NOC, + CLK_BR, + CLK_RBUS_L00 | F_CRITICAL, + CLK_SPIFL, + CLK_SDCTRL0 | F_CRITICAL, + CLK_PERI0 | F_EXTCLK, + CLK_A926 | F_CRITICAL, + CLK_UMCTL2 | F_CRITICAL, + CLK_PERI1 | F_EXTCLK, + + CLK_DDR_PHY0 | F_CRITICAL, + CLK_ACHIP | F_CRITICAL, + CLK_STC0, + CLK_STC_AV0, + CLK_STC_AV1, + CLK_STC_AV2, + CLK_UA0 | F_EXTCLK, + CLK_UA1 | F_EXTCLK, + CLK_UA2 | F_EXTCLK, + CLK_UA3 | F_EXTCLK, + CLK_UA4 | F_EXTCLK, + CLK_HWUA | F_EXTCLK, + CLK_DDC0, + CLK_UADMA | F_EXTCLK, + + CLK_CBDMA0, + CLK_CBDMA1, + CLK_SPI_COMBO_0, + CLK_SPI_COMBO_1, + CLK_SPI_COMBO_2, + CLK_SPI_COMBO_3, + CLK_AUD, + CLK_USBC0, + CLK_USBC1, + CLK_UPHY0, + CLK_UPHY1, + + CLK_I2CM0, + CLK_I2CM1, + CLK_I2CM2, + CLK_I2CM3, + CLK_PMC, + CLK_CARD_CTL0, + CLK_CARD_CTL1, + + CLK_CARD_CTL4, + CLK_BCH, + CLK_DDFCH, + CLK_CSIIW0, + CLK_CSIIW1, + CLK_MIPICSI0, + CLK_MIPICSI1, + + CLK_HDMI_TX, + CLK_VPOST, + + CLK_TGEN, + CLK_DMIX, + CLK_TCON, + CLK_INTERRUPT | F_CRITICAL, + + CLK_RGST | F_CRITICAL, + CLK_GPIO, + CLK_RBUS_TOP | F_CRITICAL, + + CLK_MAILBOX, + CLK_SPIND, + CLK_I2C2CBUS, + CLK_SEC, + CLK_GPOST0, + CLK_DVE, + + CLK_OSD0, + CLK_DISP_PWM, + CLK_UADBG, + CLK_DUMMY_MASTER, + CLK_FIO_CTL, + CLK_FPGA, + CLK_L2SW, + CLK_ICM, + CLK_AXI_GLOBAL, +}; + +static DEFINE_SPINLOCK(plla_lock); +static DEFINE_SPINLOCK(plle_lock); +static DEFINE_SPINLOCK(pllf_lock); +static DEFINE_SPINLOCK(pllsys_lock); +static DEFINE_SPINLOCK(plltv_lock); + +#define _M 1000000UL +#define F_27M (27 * _M) + +/*********************************** PLL_TV **********************************/ + +/* TODO: set proper FVCO range */ +#define FVCO_MIN (100 * _M) +#define FVCO_MAX (200 * _M) + +#define F_MIN (FVCO_MIN / 8) +#define F_MAX (FVCO_MAX) + +static long plltv_integer_div(struct sp_pll *clk, unsigned long freq) +{ + /* valid m values: 27M must be divisible by m, 0 means end */ + static const u32 m_table[] = { + 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 0 + }; + u32 m, n, r; + unsigned long fvco, nf; + + /* check freq */ + if (freq < F_MIN) { + pr_warn("%s: %s freq:%lu < F_MIN:%lu, round up\n", + __func__, clk_hw_get_name(&clk->hw), freq, F_MIN); + freq = F_MIN; + } else if (freq > F_MAX) { + pr_warn("%s: %s freq:%lu > F_MAX:%lu, round down\n", + __func__, clk_hw_get_name(&clk->hw), freq, F_MAX); + freq = F_MAX; + } + + /* DIVR 0~3 */ + for (r = 0; r <= 3; r++) { + fvco = freq << r; + if (fvco <= FVCO_MAX) + break; + } + + /* DIVM */ + for (m = 0; m_table[m]; m++) { + nf = fvco * m_table[m]; + n = nf / F_27M; + if ((n * F_27M) == nf) + break; + } + m = m_table[m]; + + if (!m) { + pr_err("%s: %s freq:%lu not found a valid setting\n", + __func__, clk_hw_get_name(&clk->hw), freq); + return -EINVAL; + } + + /* save parameters */ + clk->p[SEL_FRA] = 0; + clk->p[DIVR] = r; + clk->p[DIVN] = n; + clk->p[DIVM] = m; + + return freq; +} + +/* parameters for PLLTV fractional divider */ +static const u32 pt[][5] = { + /* conventional fractional */ + { + 1, // factor + 5, // 5 * p0 (nint) + 1, // 1 * p0 + F_27M, // F_27M / p0 + 1, // p0 / p2 + }, + /* phase rotation */ + { + 10, // factor + 54, // 5.4 * p0 (nint) + 2, // 0.2 * p0 + F_27M / 10, // F_27M / p0 + 5, // p0 / p2 + }, +}; + +static const u32 mods[] = { 91, 55 }; /* SDM_MOD mod values */ + +static long plltv_fractional_div(struct sp_pll *clk, unsigned long freq) +{ + u32 m, r; + u32 nint, nfra; + u32 df_quotient_min = 210000000; + u32 df_remainder_min = 0; + unsigned long fvco, nf, f, fout = 0; + int sdm, ph; + + /* check freq */ + if (freq < F_MIN) { + pr_warn("%s: %s freq:%lu < F_MIN:%lu, round up\n", + __func__, clk_hw_get_name(&clk->hw), freq, F_MIN); + freq = F_MIN; + } else if (freq > F_MAX) { + pr_warn("%s: %s freq:%lu > F_MAX:%lu, round down\n", + __func__, clk_hw_get_name(&clk->hw), freq, F_MAX); + freq = F_MAX; + } + + /* DIVR 0~3 */ + for (r = 0; r <= 3; r++) { + fvco = freq << r; + if (fvco <= FVCO_MAX) + break; + } + f = F_27M >> r; + + /* PH_SEL 1/0 */ + for (ph = 1; ph >= 0; ph--) { + const u32 *pp = pt[ph]; + u32 ms = 1; + + /* SDM_MOD 0/1 */ + for (sdm = 0; sdm <= 1; sdm++) { + u32 mod = mods[sdm]; + + /* DIVM 1~32 */ + for (m = ms; m <= 32; m++) { + u32 df; /* diff freq */ + u32 df_quotient = 0, df_remainder = 0; + + nf = fvco * m; + nint = nf / pp[3]; + + if (nint < pp[1]) + continue; + if (nint > pp[1]) + break; + + nfra = (((nf % pp[3]) * mod * pp[4]) + (F_27M / 2)) / F_27M; + if (nfra) + df = (f * (nint + pp[2]) / pp[0]) - + (f * (mod - nfra) / mod / pp[4]); + else + df = (f * (nint) / pp[0]); + + df_quotient = df / m; + df_remainder = ((df % m) * 1000) / m; + + if (freq > df_quotient) { + df_quotient = freq - df_quotient - 1; + df_remainder = 1000 - df_remainder; + } else { + df_quotient = df_quotient - freq; + } + + if (df_quotient_min > df_quotient || + (df_quotient_min == df_quotient && + df_remainder_min > df_remainder)) { + /* found a closer freq, save parameters */ + clk->p[SEL_FRA] = 1; + clk->p[SDM_MOD] = sdm; + clk->p[PH_SEL] = ph; + clk->p[NFRA] = nfra; + clk->p[DIVR] = r; + clk->p[DIVM] = m; + + fout = df / m; + df_quotient_min = df_quotient; + df_remainder_min = df_remainder; + } + } + } + } + + if (!fout) { + pr_err("%s: %s freq:%lu not found a valid setting\n", + __func__, clk_hw_get_name(&clk->hw), freq); + return -EINVAL; + } + + return fout; +} + +static long plltv_div(struct sp_pll *clk, unsigned long freq) +{ + if (freq % 100) + return plltv_fractional_div(clk, freq); + + return plltv_integer_div(clk, freq); +} + +static void plltv_set_rate(struct sp_pll *clk) +{ + u32 reg; + + reg = HWM_FIELD_PREP(MASK_SEL_FRA, clk->p[SEL_FRA]); + reg |= HWM_FIELD_PREP(MASK_SDM_MOD, clk->p[SDM_MOD]); + reg |= HWM_FIELD_PREP(MASK_PH_SEL, clk->p[PH_SEL]); + reg |= HWM_FIELD_PREP(MASK_NFRA, clk->p[NFRA]); + writel(reg, clk->reg); + + reg = HWM_FIELD_PREP(MASK_DIVR, clk->p[DIVR]); + writel(reg, clk->reg + 4); + + reg = HWM_FIELD_PREP(MASK_DIVN, clk->p[DIVN] - 1); + reg |= HWM_FIELD_PREP(MASK_DIVM, clk->p[DIVM] - 1); + writel(reg, clk->reg + 8); +} + +/*********************************** PLL_A ***********************************/ + +/* from Q628_PLLs_REG_setting.xlsx */ +static const struct { + u32 rate; + u32 regs[5]; +} pa[] = { + { + .rate = 135475200, + .regs = { + 0x4801, + 0x02df, + 0x248f, + 0x0211, + 0x33e9 + } + }, + { + .rate = 147456000, + .regs = { + 0x4801, + 0x1adf, + 0x2490, + 0x0349, + 0x33e9 + } + }, + { + .rate = 196608000, + .regs = { + 0x4801, + 0x42ef, + 0x2495, + 0x01c6, + 0x33e9 + } + }, +}; + +static void plla_set_rate(struct sp_pll *clk) +{ + const u32 *pp = pa[clk->p[0]].regs; + int i; + + for (i = 0; i < ARRAY_SIZE(pa->regs); i++) + writel(0xffff0000 | pp[i], clk->reg + (i * 4)); +} + +static long plla_round_rate(struct sp_pll *clk, unsigned long rate) +{ + int i = ARRAY_SIZE(pa); + + while (--i) { + if (rate >= pa[i].rate) + break; + } + clk->p[0] = i; + + return pa[i].rate; +} + +/********************************** SP_PLL ***********************************/ + +static long sp_pll_calc_div(struct sp_pll *clk, unsigned long rate) +{ + u32 fbdiv; + u32 max = 1 << clk->div_width; + + fbdiv = DIV_ROUND_CLOSEST(rate, clk->brate); + if (fbdiv > max) + fbdiv = max; + + return fbdiv; +} + +static long sp_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct sp_pll *clk = to_sp_pll(hw); + long ret; + + if (rate == *prate) + ret = *prate; /* bypass */ + else if (clk->div_width == DIV_A) { + ret = plla_round_rate(clk, rate); + } else if (clk->div_width == DIV_TV) { + ret = plltv_div(clk, rate); + if (ret < 0) + ret = *prate; + } else { + ret = sp_pll_calc_div(clk, rate) * clk->brate; + } + + return ret; +} + +static unsigned long sp_pll_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct sp_pll *clk = to_sp_pll(hw); + u32 reg = readl(clk->reg); + unsigned long ret; + + if (reg & BIT(clk->bp_bit)) + ret = prate; /* bypass */ + else if (clk->div_width == DIV_A) + ret = pa[clk->p[0]].rate; + else if (clk->div_width == DIV_TV) { + u32 m, r, reg2; + + r = FIELD_GET(MASK_DIVR, readl(clk->reg + 4)); + reg2 = readl(clk->reg + 8); + m = FIELD_GET(MASK_DIVM, reg2) + 1; + + if (reg & BIT(1)) { /* SEL_FRA */ + /* fractional divider */ + u32 sdm = FIELD_GET(MASK_SDM_MOD, reg); + u32 ph = FIELD_GET(MASK_PH_SEL, reg); + u32 nfra = FIELD_GET(MASK_NFRA, reg); + const u32 *pp = pt[ph]; + + ret = prate >> r; + ret = (ret * (pp[1] + pp[2]) / pp[0]) - + (ret * (mods[sdm] - nfra) / mods[sdm] / pp[4]); + ret /= m; + } else { + /* integer divider */ + u32 n = FIELD_GET(MASK_DIVN, reg2) + 1; + + ret = (prate / m * n) >> r; + } + } else { + u32 fbdiv = ((reg >> clk->div_shift) & ((1 << clk->div_width) - 1)) + 1; + + ret = clk->brate * fbdiv; + } + + return ret; +} + +static int sp_pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long prate) +{ + struct sp_pll *clk = to_sp_pll(hw); + unsigned long flags; + u32 reg; + + spin_lock_irqsave(clk->lock, flags); + + reg = BIT(clk->bp_bit + 16); /* HIWORD_MASK */ + + if (rate == prate) + reg |= BIT(clk->bp_bit); /* bypass */ + else if (clk->div_width == DIV_A) + plla_set_rate(clk); + else if (clk->div_width == DIV_TV) + plltv_set_rate(clk); + else if (clk->div_width) { + u32 fbdiv = sp_pll_calc_div(clk, rate); + u32 mask = GENMASK(clk->div_shift + clk->div_width - 1, clk->div_shift); + + reg |= (mask << 16) | (((fbdiv - 1) << clk->div_shift) & mask); + } + + writel(reg, clk->reg); + + spin_unlock_irqrestore(clk->lock, flags); + + return 0; +} + +static int sp_pll_enable(struct clk_hw *hw) +{ + struct sp_pll *clk = to_sp_pll(hw); + unsigned long flags; + + spin_lock_irqsave(clk->lock, flags); + writel(BIT(clk->pd_bit + 16) | BIT(clk->pd_bit), clk->reg); /* power up */ + spin_unlock_irqrestore(clk->lock, flags); + + return 0; +} + +static void sp_pll_disable(struct clk_hw *hw) +{ + struct sp_pll *clk = to_sp_pll(hw); + unsigned long flags; + + spin_lock_irqsave(clk->lock, flags); + writel(BIT(clk->pd_bit + 16), clk->reg); /* power down */ + spin_unlock_irqrestore(clk->lock, flags); +} + +static int sp_pll_is_enabled(struct clk_hw *hw) +{ + struct sp_pll *clk = to_sp_pll(hw); + + return readl(clk->reg) & BIT(clk->pd_bit); +} + +static const struct clk_ops sp_pll_ops = { + .enable = sp_pll_enable, + .disable = sp_pll_disable, + .is_enabled = sp_pll_is_enabled, + .round_rate = sp_pll_round_rate, + .recalc_rate = sp_pll_recalc_rate, + .set_rate = sp_pll_set_rate +}; + +static const struct clk_ops sp_pll_sub_ops = { + .enable = sp_pll_enable, + .disable = sp_pll_disable, + .is_enabled = sp_pll_is_enabled, + .recalc_rate = sp_pll_recalc_rate, +}; + +struct clk_hw *sp_pll_register(struct device *dev, const char *name, + const struct clk_parent_data *parent_data, + void __iomem *reg, int pd_bit, int bp_bit, + unsigned long brate, int shift, int width, + spinlock_t *lock) +{ + struct sp_pll *pll; + struct clk_hw *hw; + struct clk_init_data initd = { + .name = name, + .parent_data = parent_data, + .ops = (bp_bit >= 0) ? &sp_pll_ops : &sp_pll_sub_ops, + .num_parents = 1, + /* system clock, should not be disabled */ + .flags = (reg == PLLSYS_CTL) ? CLK_IS_CRITICAL : 0, + }; + int ret; + + pll = devm_kzalloc(dev, sizeof(*pll), GFP_KERNEL); + if (!pll) + return ERR_PTR(-ENOMEM); + + pll->hw.init = &initd; + pll->reg = reg; + pll->pd_bit = pd_bit; + pll->bp_bit = bp_bit; + pll->brate = brate; + pll->div_shift = shift; + pll->div_width = width; + pll->lock = lock; + + hw = &pll->hw; + ret = devm_clk_hw_register(dev, hw); + if (ret) { + kfree(pll); + hw = ERR_PTR(ret); + } else { + pr_debug("%-20s%lu\n", name, clk_hw_get_rate(hw)); + devm_clk_hw_register_clkdev(dev, hw, NULL, name); + } + + return hw; +} + +static int sp7021_clk_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + int i, ret; + struct clk_hw **hws; + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + sp_clk_base = devm_ioremap(dev, res->start, resource_size(res)); + if (WARN_ON(!sp_clk_base)) + return -ENXIO; + + sp_clk_data = devm_kzalloc(dev, struct_size(sp_clk_data, hws, CLK_MAX), + GFP_KERNEL); + if (!sp_clk_data) + return -ENOMEM; + + hws = sp_clk_data->hws; + + /* PLL_A */ + hws[PLL_A] = sp_pll_register(dev, "plla", PD_EXTCLK, PLLA_CTL, + 11, 12, 27000000, 0, DIV_A, &plla_lock); + if (IS_ERR(hws[PLL_A])) + return PTR_ERR(hws[PLL_A]); + + /* PLL_E */ + hws[PLL_E] = sp_pll_register(dev, "plle", PD_EXTCLK, PLLE_CTL, + 6, 2, 50000000, 0, 0, &plle_lock); + if (IS_ERR(hws[PLL_E])) + return PTR_ERR(hws[PLL_E]); + hws[PLL_E_2P5] = sp_pll_register(dev, "plle_2p5", PD_PLLE, PLLE_CTL, + 13, -1, 2500000, 0, 0, &plle_lock); + if (IS_ERR(hws[PLL_E_2P5])) + return PTR_ERR(hws[PLL_E_2P5]); + hws[PLL_E_25] = sp_pll_register(dev, "plle_25", PD_PLLE, PLLE_CTL, + 12, -1, 25000000, 0, 0, &plle_lock); + if (IS_ERR(hws[PLL_E_25])) + return PTR_ERR(hws[PLL_E_25]); + hws[PLL_E_112P5] = sp_pll_register(dev, "plle_112p5", PD_PLLE, PLLE_CTL, + 11, -1, 112500000, 0, 0, &plle_lock); + if (IS_ERR(hws[PLL_E_112P5])) + return PTR_ERR(hws[PLL_E_112P5]); + + /* PLL_F */ + hws[PLL_F] = sp_pll_register(dev, "pllf", PD_EXTCLK, PLLF_CTL, + 0, 10, 13500000, 1, 4, &pllf_lock); + if (IS_ERR(hws[PLL_F])) + return PTR_ERR(hws[PLL_F]); + + /* PLL_TV */ + hws[PLL_TV] = sp_pll_register(dev, "plltv", PD_EXTCLK, PLLTV_CTL, + 0, 15, 27000000, 0, DIV_TV, &plltv_lock); + if (IS_ERR(hws[PLL_TV])) + return PTR_ERR(hws[PLL_TV]); + hws[PLL_TV_A] = devm_clk_hw_register_divider(dev, "plltv_a", "plltv", 0, + PLLTV_CTL + 4, 5, 1, + CLK_DIVIDER_POWER_OF_TWO, + &plltv_lock); + if (IS_ERR(hws[PLL_TV_A])) + return PTR_ERR(hws[PLL_TV_A]); + ret = devm_clk_hw_register_clkdev(dev, hws[PLL_TV_A], NULL, "plltv_a"); + if (ret) + return ret; + + /* PLL_SYS */ + hws[PLL_SYS] = sp_pll_register(dev, "pllsys", PD_EXTCLK, PLLSYS_CTL, + 10, 9, 13500000, 0, 4, &pllsys_lock); + if (IS_ERR(hws[PLL_SYS])) + return PTR_ERR(hws[PLL_SYS]); + + /* gates */ + for (i = 0; i < ARRAY_SIZE(gates); i++) { + u32 f = gates[i]; + const char *parent_name = parents[!!(f & F_EXTCLK)].name; + bool critical = f & F_CRITICAL; + int j = f & 0xffff; + char s[10]; + + sprintf(s, "clken%02x", j); + hws[j] = clk_hw_register_gate(dev, s, parent_name, + critical ? CLK_IS_CRITICAL : 0, + clk_regs + (j >> 4) * 4, + j & 0x0f, + CLK_GATE_HIWORD_MASK, NULL); + if (IS_ERR(hws[j])) + return PTR_ERR(hws[j]); + } + + sp_clk_data->num = CLK_MAX; + return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, sp_clk_data); +} + +static const struct of_device_id sp7021_clk_dt_ids[] = { + { .compatible = "sunplus,sp7021-clkc", }, + { } +}; + +static struct platform_driver sp7021_clk_driver = { + .probe = sp7021_clk_probe, + .driver = { + .name = "sp7021-clk", + .of_match_table = sp7021_clk_dt_ids, + }, +}; +builtin_platform_driver(sp7021_clk_driver); -- 2.33.1
