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a=openpgp; fpr=6AFF162D57F4223A8770EF5AF7BF214136F41FAE The v7 HW supports currently 2 buses. So register each bus as a separate spmi controller and adapt all ops to use the bus instead of the arbitrator. Legacy mode is still supported as long as there is no child node that represents a bus, instead all nodes are expected to be actual slave devices. Signed-off-by: Abel Vesa --- Changes in v2: - Reworked it so that it registers a spmi controller for each bus rather than relying on the generic framework to pass on the bus (master) id. - Link to v1: https://lore.kernel.org/r/20240207-spmi-multi-master-support-= v1-0-ce57f301c7fd@linaro.org --- drivers/spmi/spmi-pmic-arb.c | 950 ++++++++++++++++++++++++++-------------= ---- 1 file changed, 585 insertions(+), 365 deletions(-) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 9ed1180fe31f..eced35b712b4 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -13,6 +13,8 @@ #include #include #include +#include +#include #include #include #include @@ -94,6 +96,8 @@ enum pmic_arb_channel { PMIC_ARB_CHANNEL_OBS, }; =20 +#define PMIC_ARB_MAX_BUSES 2 + /* Maximum number of support PMIC peripherals */ #define PMIC_ARB_MAX_PERIPHS 512 #define PMIC_ARB_MAX_PERIPHS_V7 1024 @@ -125,64 +129,77 @@ struct apid_data { u8 irq_ee; }; =20 +struct spmi_pmic_arb; + /** - * struct spmi_pmic_arb - SPMI PMIC Arbiter object + * struct spmi_pmic_arb_bus - SPMI PMIC Arbiter Bus object * - * @rd_base: on v1 "core", on v2 "observer" register base off DT. - * @wr_base: on v1 "core", on v2 "chnls" register base off DT. * @intr: address of the SPMI interrupt control registers. * @cnfg: address of the PMIC Arbiter configuration registers. - * @lock: lock to synchronize accesses. - * @channel: execution environment channel to use for accesses. - * @irq: PMIC ARB interrupt. - * @ee: the current Execution Environment - * @bus_instance: on v7: 0 =3D primary SPMI bus, 1 =3D secondary SPMI bus - * @min_apid: minimum APID (used for bounding IRQ search) - * @max_apid: maximum APID + * @domain: irq domain object for PMIC IRQ domain + * @bus_index: on v7: 0 =3D primary SPMI bus, 1 =3D secondary SPMI bus * @base_apid: on v7: minimum APID associated with the particular SPMI * bus instance * @apid_count: on v5 and v7: number of APIDs associated with the * particular SPMI bus instance * @mapping_table: in-memory copy of PPID -> APID mapping table. - * @domain: irq domain object for PMIC IRQ domain - * @spmic: SPMI controller object - * @ver_ops: version dependent operations. * @ppid_to_apid: in-memory copy of PPID -> APID mapping table. - * @last_apid: Highest value APID in use * @apid_data: Table of data for all APIDs + * @last_apid: Highest value APID in use + * @irq: PMIC ARB interrupt. + */ +struct spmi_pmic_arb_bus { + struct spmi_pmic_arb *pmic_arb; + struct irq_domain *domain; + void __iomem *intr; + void __iomem *cnfg; + struct spmi_controller *spmic; + u32 bus_index; + u16 base_apid; + int apid_count; + u32 *mapping_table; + DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS); + u16 *ppid_to_apid; + u16 last_apid; + struct apid_data *apid_data; + u16 min_apid; + u16 max_apid; + int irq; + u8 id; +}; + +/** + * struct spmi_pmic_arb - SPMI PMIC Arbiter object + * + * @rd_base: on v1 "core", on v2 "observer" register base off DT. + * @wr_base: on v1 "core", on v2 "chnls" register base off DT. + * @lock: lock to synchronize accesses. + * @channel: execution environment channel to use for accesses. + * @ee: the current Execution Environment + * @min_apid: minimum APID (used for bounding IRQ search) + * @max_apid: maximum APID + * @ver_ops: version dependent operations. * @max_periphs: Number of elements in apid_data[] */ struct spmi_pmic_arb { void __iomem *rd_base; void __iomem *wr_base; - void __iomem *intr; - void __iomem *cnfg; void __iomem *core; resource_size_t core_size; raw_spinlock_t lock; u8 channel; - int irq; u8 ee; - u32 bus_instance; - u16 min_apid; - u16 max_apid; - u16 base_apid; - int apid_count; - u32 *mapping_table; - DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS); - struct irq_domain *domain; - struct spmi_controller *spmic; const struct pmic_arb_ver_ops *ver_ops; - u16 *ppid_to_apid; - u16 last_apid; - struct apid_data *apid_data; int max_periphs; + struct spmi_pmic_arb_bus buses[PMIC_ARB_MAX_BUSES]; + int buses_available; }; =20 /** * struct pmic_arb_ver_ops - version dependent functionality. * * @ver_str: version string. + * @init_apid: finds the apid base and count * @ppid_to_apid: finds the apid for a given ppid. * @non_data_cmd: on v1 issues an spmi non-data command. * on v2 no HW support, returns -EOPNOTSUPP. @@ -202,20 +219,22 @@ struct spmi_pmic_arb { */ struct pmic_arb_ver_ops { const char *ver_str; - int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid); + int (*get_core_resources)(struct platform_device *pdev, void __iomem *cor= e); + int (*init_apid)(struct spmi_pmic_arb_bus *bus, int index); + int (*ppid_to_apid)(struct spmi_pmic_arb_bus *bus, u16 ppid); /* spmi commands (read_cmd, write_cmd, cmd) functionality */ - int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, - enum pmic_arb_channel ch_type); + int (*offset)(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr, + enum pmic_arb_channel ch_type); u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc); int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid); /* Interrupts controller functionality (offset of PIC registers) */ - void __iomem *(*owner_acc_status)(struct spmi_pmic_arb *pmic_arb, u8 m, + void __iomem *(*owner_acc_status)(struct spmi_pmic_arb_bus *bus, u8 m, u16 n); - void __iomem *(*acc_enable)(struct spmi_pmic_arb *pmic_arb, u16 n); - void __iomem *(*irq_status)(struct spmi_pmic_arb *pmic_arb, u16 n); - void __iomem *(*irq_clear)(struct spmi_pmic_arb *pmic_arb, u16 n); + void __iomem *(*acc_enable)(struct spmi_pmic_arb_bus *bus, u16 n); + void __iomem *(*irq_status)(struct spmi_pmic_arb_bus *bus, u16 n); + void __iomem *(*irq_clear)(struct spmi_pmic_arb_bus *bus, u16 n); u32 (*apid_map_offset)(u16 n); - void __iomem *(*apid_owner)(struct spmi_pmic_arb *pmic_arb, u16 n); + void __iomem *(*apid_owner)(struct spmi_pmic_arb_bus *bus, u16 n); }; =20 static inline void pmic_arb_base_write(struct spmi_pmic_arb *pmic_arb, @@ -263,13 +282,14 @@ static int pmic_arb_wait_for_done(struct spmi_control= ler *ctrl, void __iomem *base, u8 sid, u16 addr, enum pmic_arb_channel ch_type) { - struct spmi_pmic_arb *pmic_arb =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u32 status =3D 0; u32 timeout =3D PMIC_ARB_TIMEOUT_US; u32 offset; int rc; =20 - rc =3D pmic_arb->ver_ops->offset(pmic_arb, sid, addr, ch_type); + rc =3D pmic_arb->ver_ops->offset(bus, sid, addr, ch_type); if (rc < 0) return rc; =20 @@ -281,21 +301,21 @@ static int pmic_arb_wait_for_done(struct spmi_control= ler *ctrl, =20 if (status & PMIC_ARB_STATUS_DONE) { if (status & PMIC_ARB_STATUS_DENIED) { - dev_err(&ctrl->dev, "%s: %#x %#x: transaction denied (%#x)\n", - __func__, sid, addr, status); + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction denied (%#x)\n", + __func__, bus->id, sid, addr, status); return -EPERM; } =20 if (status & PMIC_ARB_STATUS_FAILURE) { - dev_err(&ctrl->dev, "%s: %#x %#x: transaction failed (%#x)\n", - __func__, sid, addr, status); + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction failed (%#x) reg: 0x= %x\n", + __func__, bus->id, sid, addr, status, offset); WARN_ON(1); return -EIO; } =20 if (status & PMIC_ARB_STATUS_DROPPED) { - dev_err(&ctrl->dev, "%s: %#x %#x: transaction dropped (%#x)\n", - __func__, sid, addr, status); + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction dropped (%#x)\n", + __func__, bus->id, sid, addr, status); return -EIO; } =20 @@ -304,8 +324,8 @@ static int pmic_arb_wait_for_done(struct spmi_controlle= r *ctrl, udelay(1); } =20 - dev_err(&ctrl->dev, "%s: %#x %#x: timeout, status %#x\n", - __func__, sid, addr, status); + dev_err(&ctrl->dev, "%s: %#x %#x %#x: timeout, status %#x\n", + __func__, bus->id, sid, addr, status); return -ETIMEDOUT; } =20 @@ -313,12 +333,13 @@ static int pmic_arb_non_data_cmd_v1(struct spmi_controller *ctrl, u8 opc, u8 sid) { struct spmi_pmic_arb *pmic_arb =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus =3D &pmic_arb->buses[0]; unsigned long flags; u32 cmd; int rc; u32 offset; =20 - rc =3D pmic_arb->ver_ops->offset(pmic_arb, sid, 0, PMIC_ARB_CHANNEL_RW); + rc =3D pmic_arb->ver_ops->offset(bus, sid, 0, PMIC_ARB_CHANNEL_RW); if (rc < 0) return rc; =20 @@ -354,20 +375,21 @@ static int pmic_arb_cmd(struct spmi_controller *ctrl,= u8 opc, u8 sid) return pmic_arb->ver_ops->non_data_cmd(ctrl, opc, sid); } =20 -static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc, u= 8 sid, +static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb_bus *bus, u8 opc, u8= sid, u16 addr, size_t len, u32 *cmd, u32 *offset) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u8 bc =3D len - 1; int rc; =20 - rc =3D pmic_arb->ver_ops->offset(pmic_arb, sid, addr, + rc =3D pmic_arb->ver_ops->offset(bus, sid, addr, PMIC_ARB_CHANNEL_OBS); if (rc < 0) return rc; =20 *offset =3D rc; if (bc >=3D PMIC_ARB_MAX_TRANS_BYTES) { - dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans,= but:%zu requested", + dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:= %zu requested", PMIC_ARB_MAX_TRANS_BYTES, len); return -EINVAL; } @@ -391,7 +413,8 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_contr= oller *ctrl, u32 cmd, u32 offset, u8 sid, u16 addr, u8 *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u8 bc =3D len - 1; int rc; =20 @@ -413,12 +436,13 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_con= troller *ctrl, u32 cmd, static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid, u16 addr, u8 *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; unsigned long flags; u32 cmd, offset; int rc; =20 - rc =3D pmic_arb_fmt_read_cmd(pmic_arb, opc, sid, addr, len, &cmd, + rc =3D pmic_arb_fmt_read_cmd(bus, opc, sid, addr, len, &cmd, &offset); if (rc) return rc; @@ -430,21 +454,22 @@ static int pmic_arb_read_cmd(struct spmi_controller *= ctrl, u8 opc, u8 sid, return rc; } =20 -static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc, +static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb_bus *bus, u8 opc, u8 sid, u16 addr, size_t len, u32 *cmd, u32 *offset) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u8 bc =3D len - 1; int rc; =20 - rc =3D pmic_arb->ver_ops->offset(pmic_arb, sid, addr, + rc =3D pmic_arb->ver_ops->offset(bus, sid, addr, PMIC_ARB_CHANNEL_RW); if (rc < 0) return rc; =20 *offset =3D rc; if (bc >=3D PMIC_ARB_MAX_TRANS_BYTES) { - dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans,= but:%zu requested", + dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:= %zu requested", PMIC_ARB_MAX_TRANS_BYTES, len); return -EINVAL; } @@ -470,7 +495,8 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_cont= roller *ctrl, u32 cmd, u32 offset, u8 sid, u16 addr, const u8 *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u8 bc =3D len - 1; =20 /* Write data to FIFOs */ @@ -489,12 +515,13 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_co= ntroller *ctrl, u32 cmd, static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid, u16 addr, const u8 *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; unsigned long flags; u32 cmd, offset; int rc; =20 - rc =3D pmic_arb_fmt_write_cmd(pmic_arb, opc, sid, addr, len, &cmd, + rc =3D pmic_arb_fmt_write_cmd(bus, opc, sid, addr, len, &cmd, &offset); if (rc) return rc; @@ -510,18 +537,19 @@ static int pmic_arb_write_cmd(struct spmi_controller = *ctrl, u8 opc, u8 sid, static int pmic_arb_masked_write(struct spmi_controller *ctrl, u8 sid, u16= addr, const u8 *buf, const u8 *mask, size_t len) { - struct spmi_pmic_arb *pmic_arb =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus =3D spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u32 read_cmd, read_offset, write_cmd, write_offset; u8 temp[PMIC_ARB_MAX_TRANS_BYTES]; unsigned long flags; int rc, i; =20 - rc =3D pmic_arb_fmt_read_cmd(pmic_arb, SPMI_CMD_EXT_READL, sid, addr, len, + rc =3D pmic_arb_fmt_read_cmd(bus, SPMI_CMD_EXT_READL, sid, addr, len, &read_cmd, &read_offset); if (rc) return rc; =20 - rc =3D pmic_arb_fmt_write_cmd(pmic_arb, SPMI_CMD_EXT_WRITEL, sid, addr, + rc =3D pmic_arb_fmt_write_cmd(bus, SPMI_CMD_EXT_WRITEL, sid, addr, len, &write_cmd, &write_offset); if (rc) return rc; @@ -564,25 +592,25 @@ struct spmi_pmic_arb_qpnpint_type { static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus =3D irq_data_get_irq_chip_data(d); u8 sid =3D hwirq_to_sid(d->hwirq); u8 per =3D hwirq_to_per(d->hwirq); =20 - if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid, + if (pmic_arb_write_cmd(bus->spmic, SPMI_CMD_EXT_WRITEL, sid, (per << 8) + reg, buf, len)) - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction o= n %x\n", + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\= n", d->irq); } =20 static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_= t len) { - struct spmi_pmic_arb *pmic_arb =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus =3D irq_data_get_irq_chip_data(d); u8 sid =3D hwirq_to_sid(d->hwirq); u8 per =3D hwirq_to_per(d->hwirq); =20 - if (pmic_arb_read_cmd(pmic_arb->spmic, SPMI_CMD_EXT_READL, sid, + if (pmic_arb_read_cmd(bus->spmic, SPMI_CMD_EXT_READL, sid, (per << 8) + reg, buf, len)) - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction o= n %x\n", + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\= n", d->irq); } =20 @@ -590,47 +618,49 @@ static int qpnpint_spmi_masked_write(struct irq_data = *d, u8 reg, const void *buf, const void *mask, size_t len) { - struct spmi_pmic_arb *pmic_arb =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus =3D irq_data_get_irq_chip_data(d); u8 sid =3D hwirq_to_sid(d->hwirq); u8 per =3D hwirq_to_per(d->hwirq); int rc; =20 - rc =3D pmic_arb_masked_write(pmic_arb->spmic, sid, (per << 8) + reg, buf, + rc =3D pmic_arb_masked_write(bus->spmic, sid, (per << 8) + reg, buf, mask, len); if (rc) - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction o= n %x rc=3D%d\n", + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x = rc=3D%d\n", d->irq, rc); return rc; } =20 -static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id) +static void cleanup_irq(struct spmi_pmic_arb_bus *bus, u16 apid, int id) { - u16 ppid =3D pmic_arb->apid_data[apid].ppid; + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; + u16 ppid =3D bus->apid_data[apid].ppid; u8 sid =3D ppid >> 8; u8 per =3D ppid & 0xFF; u8 irq_mask =3D BIT(id); =20 - dev_err_ratelimited(&pmic_arb->spmic->dev, "%s apid=3D%d sid=3D0x%x per= =3D0x%x irq=3D%d\n", - __func__, apid, sid, per, id); - writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(pmic_arb, apid)); + dev_err_ratelimited(&bus->spmic->dev, "%s apid=3D%d sid=3D0x%x per=3D0x%x= irq=3D%d\n", + __func__, apid, sid, per, id); + writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(bus, apid)); } =20 -static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid) +static int periph_interrupt(struct spmi_pmic_arb_bus *bus, u16 apid) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; unsigned int irq; u32 status, id; int handled =3D 0; - u8 sid =3D (pmic_arb->apid_data[apid].ppid >> 8) & 0xF; - u8 per =3D pmic_arb->apid_data[apid].ppid & 0xFF; + u8 sid =3D (bus->apid_data[apid].ppid >> 8) & 0xF; + u8 per =3D bus->apid_data[apid].ppid & 0xFF; =20 - status =3D readl_relaxed(pmic_arb->ver_ops->irq_status(pmic_arb, apid)); + status =3D readl_relaxed(pmic_arb->ver_ops->irq_status(bus, apid)); while (status) { id =3D ffs(status) - 1; status &=3D ~BIT(id); - irq =3D irq_find_mapping(pmic_arb->domain, - spec_to_hwirq(sid, per, id, apid)); + irq =3D irq_find_mapping(bus->domain, + spec_to_hwirq(sid, per, id, apid)); if (irq =3D=3D 0) { - cleanup_irq(pmic_arb, apid, id); + cleanup_irq(bus, apid, id); continue; } generic_handle_irq(irq); @@ -642,16 +672,17 @@ static int periph_interrupt(struct spmi_pmic_arb *pmi= c_arb, u16 apid) =20 static void pmic_arb_chained_irq(struct irq_desc *desc) { - struct spmi_pmic_arb *pmic_arb =3D irq_desc_get_handler_data(desc); + struct spmi_pmic_arb_bus *bus =3D irq_desc_get_handler_data(desc); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; const struct pmic_arb_ver_ops *ver_ops =3D pmic_arb->ver_ops; struct irq_chip *chip =3D irq_desc_get_chip(desc); - int first =3D pmic_arb->min_apid; - int last =3D pmic_arb->max_apid; + int first =3D bus->min_apid; + int last =3D bus->max_apid; /* * acc_offset will be non-zero for the secondary SPMI bus instance on * v7 controllers. */ - int acc_offset =3D pmic_arb->base_apid >> 5; + int acc_offset =3D bus->base_apid >> 5; u8 ee =3D pmic_arb->ee; u32 status, enable, handled =3D 0; int i, id, apid; @@ -662,7 +693,7 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) chained_irq_enter(chip, desc); =20 for (i =3D first >> 5; i <=3D last >> 5; ++i) { - status =3D readl_relaxed(ver_ops->owner_acc_status(pmic_arb, ee, i - acc= _offset)); + status =3D readl_relaxed(ver_ops->owner_acc_status(bus, ee, i - acc_offs= et)); if (status) acc_valid =3D true; =20 @@ -676,9 +707,9 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) continue; } enable =3D readl_relaxed( - ver_ops->acc_enable(pmic_arb, apid)); + ver_ops->acc_enable(bus, apid)); if (enable & SPMI_PIC_ACC_ENABLE_BIT) - if (periph_interrupt(pmic_arb, apid) !=3D 0) + if (periph_interrupt(bus, apid) !=3D 0) handled++; } } @@ -687,19 +718,19 @@ static void pmic_arb_chained_irq(struct irq_desc *des= c) if (!acc_valid) { for (i =3D first; i <=3D last; i++) { /* skip if APPS is not irq owner */ - if (pmic_arb->apid_data[i].irq_ee !=3D pmic_arb->ee) + if (bus->apid_data[i].irq_ee !=3D pmic_arb->ee) continue; =20 irq_status =3D readl_relaxed( - ver_ops->irq_status(pmic_arb, i)); + ver_ops->irq_status(bus, i)); if (irq_status) { enable =3D readl_relaxed( - ver_ops->acc_enable(pmic_arb, i)); + ver_ops->acc_enable(bus, i)); if (enable & SPMI_PIC_ACC_ENABLE_BIT) { - dev_dbg(&pmic_arb->spmic->dev, + dev_dbg(&bus->spmic->dev, "Dispatching IRQ for apid=3D%d status=3D%x\n", i, irq_status); - if (periph_interrupt(pmic_arb, i) !=3D 0) + if (periph_interrupt(bus, i) !=3D 0) handled++; } } @@ -714,12 +745,13 @@ static void pmic_arb_chained_irq(struct irq_desc *des= c) =20 static void qpnpint_irq_ack(struct irq_data *d) { - struct spmi_pmic_arb *pmic_arb =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u8 irq =3D hwirq_to_irq(d->hwirq); u16 apid =3D hwirq_to_apid(d->hwirq); u8 data; =20 - writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(pmic_arb, apid)); + writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(bus, apid)); =20 data =3D BIT(irq); qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &data, 1); @@ -735,14 +767,15 @@ static void qpnpint_irq_mask(struct irq_data *d) =20 static void qpnpint_irq_unmask(struct irq_data *d) { - struct spmi_pmic_arb *pmic_arb =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; const struct pmic_arb_ver_ops *ver_ops =3D pmic_arb->ver_ops; u8 irq =3D hwirq_to_irq(d->hwirq); u16 apid =3D hwirq_to_apid(d->hwirq); u8 buf[2]; =20 writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT, - ver_ops->acc_enable(pmic_arb, apid)); + ver_ops->acc_enable(bus, apid)); =20 qpnpint_spmi_read(d, QPNPINT_REG_EN_SET, &buf[0], 1); if (!(buf[0] & BIT(irq))) { @@ -799,9 +832,9 @@ static int qpnpint_irq_set_type(struct irq_data *d, uns= igned int flow_type) =20 static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on) { - struct spmi_pmic_arb *pmic_arb =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus =3D irq_data_get_irq_chip_data(d); =20 - return irq_set_irq_wake(pmic_arb->irq, on); + return irq_set_irq_wake(bus->irq, on); } =20 static int qpnpint_get_irqchip_state(struct irq_data *d, @@ -823,17 +856,18 @@ static int qpnpint_get_irqchip_state(struct irq_data = *d, static int qpnpint_irq_domain_activate(struct irq_domain *domain, struct irq_data *d, bool reserve) { - struct spmi_pmic_arb *pmic_arb =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus =3D irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u16 periph =3D hwirq_to_per(d->hwirq); u16 apid =3D hwirq_to_apid(d->hwirq); u16 sid =3D hwirq_to_sid(d->hwirq); u16 irq =3D hwirq_to_irq(d->hwirq); u8 buf; =20 - if (pmic_arb->apid_data[apid].irq_ee !=3D pmic_arb->ee) { - dev_err(&pmic_arb->spmic->dev, "failed to xlate sid =3D %#x, periph =3D = %#x, irq =3D %u: ee=3D%u but owner=3D%u\n", + if (bus->apid_data[apid].irq_ee !=3D pmic_arb->ee) { + dev_err(&bus->spmic->dev, "failed to xlate sid =3D %#x, periph =3D %#x, = irq =3D %u: ee=3D%u but owner=3D%u\n", sid, periph, irq, pmic_arb->ee, - pmic_arb->apid_data[apid].irq_ee); + bus->apid_data[apid].irq_ee); return -ENODEV; } =20 @@ -860,15 +894,16 @@ static int qpnpint_irq_domain_translate(struct irq_do= main *d, unsigned long *out_hwirq, unsigned int *out_type) { - struct spmi_pmic_arb *pmic_arb =3D d->host_data; + struct spmi_pmic_arb_bus *bus =3D d->host_data; + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u32 *intspec =3D fwspec->param; u16 apid, ppid; int rc; =20 - dev_dbg(&pmic_arb->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspe= c[2] 0x%02x\n", + dev_dbg(&bus->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] = 0x%02x\n", intspec[0], intspec[1], intspec[2]); =20 - if (irq_domain_get_of_node(d) !=3D pmic_arb->spmic->dev.of_node) + if (irq_domain_get_of_node(d) !=3D bus->spmic->dev.of_node) return -EINVAL; if (fwspec->param_count !=3D 4) return -EINVAL; @@ -876,37 +911,38 @@ static int qpnpint_irq_domain_translate(struct irq_do= main *d, return -EINVAL; =20 ppid =3D intspec[0] << 8 | intspec[1]; - rc =3D pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid); + rc =3D pmic_arb->ver_ops->ppid_to_apid(bus, ppid); if (rc < 0) { - dev_err(&pmic_arb->spmic->dev, "failed to xlate sid =3D %#x, periph =3D = %#x, irq =3D %u rc =3D %d\n", - intspec[0], intspec[1], intspec[2], rc); + dev_err(&bus->spmic->dev, "failed to xlate sid =3D %#x, periph =3D %#x, = irq =3D %u rc =3D %d\n", + intspec[0], intspec[1], intspec[2], rc); return rc; } =20 apid =3D rc; /* Keep track of {max,min}_apid for bounding search during interrupt */ - if (apid > pmic_arb->max_apid) - pmic_arb->max_apid =3D apid; - if (apid < pmic_arb->min_apid) - pmic_arb->min_apid =3D apid; + if (apid > bus->max_apid) + bus->max_apid =3D apid; + if (apid < bus->min_apid) + bus->min_apid =3D apid; =20 *out_hwirq =3D spec_to_hwirq(intspec[0], intspec[1], intspec[2], apid); *out_type =3D intspec[3] & IRQ_TYPE_SENSE_MASK; =20 - dev_dbg(&pmic_arb->spmic->dev, "out_hwirq =3D %lu\n", *out_hwirq); + dev_dbg(&bus->spmic->dev, "out_hwirq =3D %lu\n", *out_hwirq); =20 return 0; } =20 static struct lock_class_key qpnpint_irq_lock_class, qpnpint_irq_request_c= lass; =20 -static void qpnpint_irq_domain_map(struct spmi_pmic_arb *pmic_arb, +static void qpnpint_irq_domain_map(struct spmi_pmic_arb_bus *bus, struct irq_domain *domain, unsigned int virq, irq_hw_number_t hwirq, unsigned int type) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; irq_flow_handler_t handler; =20 - dev_dbg(&pmic_arb->spmic->dev, "virq =3D %u, hwirq =3D %lu, type =3D %u\n= ", + dev_dbg(&bus->spmic->dev, "virq =3D %u, hwirq =3D %lu, type =3D %u\n", virq, hwirq, type); =20 if (type & IRQ_TYPE_EDGE_BOTH) @@ -925,7 +961,7 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *= domain, unsigned int virq, unsigned int nr_irqs, void *data) { - struct spmi_pmic_arb *pmic_arb =3D domain->host_data; + struct spmi_pmic_arb_bus *bus =3D domain->host_data; struct irq_fwspec *fwspec =3D data; irq_hw_number_t hwirq; unsigned int type; @@ -936,29 +972,75 @@ static int qpnpint_irq_domain_alloc(struct irq_domain= *domain, return ret; =20 for (i =3D 0; i < nr_irqs; i++) - qpnpint_irq_domain_map(pmic_arb, domain, virq + i, hwirq + i, + qpnpint_irq_domain_map(bus, domain, virq + i, hwirq + i, type); =20 return 0; } =20 -static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 pp= id) +static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb_bus *bus) { - u32 *mapping_table =3D pmic_arb->mapping_table; + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; + + /* + * Initialize max_apid/min_apid to the opposite bounds, during + * the irq domain translation, we are sure to update these + */ + bus->max_apid =3D 0; + bus->min_apid =3D pmic_arb->max_periphs - 1; + + return 0; +} + +static int pmic_arb_get_core_resources_v1(struct platform_device *pdev, + void __iomem *core) +{ + struct spmi_pmic_arb *pmic_arb =3D platform_get_drvdata(pdev); + + pmic_arb->wr_base =3D core; + pmic_arb->rd_base =3D core; + + return 0; +} + +static int pmic_arb_init_apid_v1(struct spmi_pmic_arb_bus *bus, int index) +{ + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; + u32 *mapping_table; + + if (index) { + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n", + index); + return -EINVAL; + } + + mapping_table =3D devm_kcalloc(&bus->spmic->dev, pmic_arb->max_periphs, + sizeof(*mapping_table), GFP_KERNEL); + if (!mapping_table) + return -ENOMEM; + + bus->mapping_table =3D mapping_table; + + return pmic_arb_init_apid_min_max(bus); +} + +static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb_bus *bus, u16 ppi= d) +{ + u32 *mapping_table =3D bus->mapping_table; int index =3D 0, i; u16 apid_valid; u16 apid; u32 data; =20 - apid_valid =3D pmic_arb->ppid_to_apid[ppid]; + apid_valid =3D bus->ppid_to_apid[ppid]; if (apid_valid & PMIC_ARB_APID_VALID) { apid =3D apid_valid & ~PMIC_ARB_APID_VALID; return apid; } =20 for (i =3D 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) { - if (!test_and_set_bit(index, pmic_arb->mapping_table_valid)) - mapping_table[index] =3D readl_relaxed(pmic_arb->cnfg + + if (!test_and_set_bit(index, bus->mapping_table_valid)) + mapping_table[index] =3D readl_relaxed(bus->cnfg + SPMI_MAPPING_TABLE_REG(index)); =20 data =3D mapping_table[index]; @@ -968,9 +1050,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_a= rb *pmic_arb, u16 ppid) index =3D SPMI_MAPPING_BIT_IS_1_RESULT(data); } else { apid =3D SPMI_MAPPING_BIT_IS_1_RESULT(data); - pmic_arb->ppid_to_apid[ppid] + bus->ppid_to_apid[ppid] =3D apid | PMIC_ARB_APID_VALID; - pmic_arb->apid_data[apid].ppid =3D ppid; + bus->apid_data[apid].ppid =3D ppid; return apid; } } else { @@ -978,9 +1060,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_a= rb *pmic_arb, u16 ppid) index =3D SPMI_MAPPING_BIT_IS_0_RESULT(data); } else { apid =3D SPMI_MAPPING_BIT_IS_0_RESULT(data); - pmic_arb->ppid_to_apid[ppid] + bus->ppid_to_apid[ppid] =3D apid | PMIC_ARB_APID_VALID; - pmic_arb->apid_data[apid].ppid =3D ppid; + bus->apid_data[apid].ppid =3D ppid; return apid; } } @@ -990,24 +1072,26 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic= _arb *pmic_arb, u16 ppid) } =20 /* v1 offset per ee */ -static int pmic_arb_offset_v1(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 = addr, - enum pmic_arb_channel ch_type) +static int pmic_arb_offset_v1(struct spmi_pmic_arb_bus *bus, u8 sid, u16 a= ddr, + enum pmic_arb_channel ch_type) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; return 0x800 + 0x80 * pmic_arb->channel; } =20 -static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid) +static u16 pmic_arb_find_apid(struct spmi_pmic_arb_bus *bus, u16 ppid) { - struct apid_data *apidd =3D &pmic_arb->apid_data[pmic_arb->last_apid]; + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; + struct apid_data *apidd =3D &bus->apid_data[bus->last_apid]; u32 regval, offset; u16 id, apid; =20 - for (apid =3D pmic_arb->last_apid; ; apid++, apidd++) { + for (apid =3D bus->last_apid; ; apid++, apidd++) { offset =3D pmic_arb->ver_ops->apid_map_offset(apid); if (offset >=3D pmic_arb->core_size) break; =20 - regval =3D readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb, + regval =3D readl_relaxed(pmic_arb->ver_ops->apid_owner(bus, apid)); apidd->irq_ee =3D SPMI_OWNERSHIP_PERIPH2OWNER(regval); apidd->write_ee =3D apidd->irq_ee; @@ -1017,33 +1101,62 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb = *pmic_arb, u16 ppid) continue; =20 id =3D (regval >> 8) & PMIC_ARB_PPID_MASK; - pmic_arb->ppid_to_apid[id] =3D apid | PMIC_ARB_APID_VALID; + bus->ppid_to_apid[id] =3D apid | PMIC_ARB_APID_VALID; apidd->ppid =3D id; if (id =3D=3D ppid) { apid |=3D PMIC_ARB_APID_VALID; break; } } - pmic_arb->last_apid =3D apid & ~PMIC_ARB_APID_VALID; + bus->last_apid =3D apid & ~PMIC_ARB_APID_VALID; =20 return apid; } =20 -static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 pp= id) +static int pmic_arb_get_core_resources_v2(struct platform_device *pdev, + void __iomem *core) +{ + struct spmi_pmic_arb *pmic_arb =3D platform_get_drvdata(pdev); + struct device *dev =3D &pdev->dev; + struct resource *res; + + pmic_arb->core =3D core; + + pmic_arb->max_periphs =3D PMIC_ARB_MAX_PERIPHS; + + res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, + "obsrvr"); + pmic_arb->rd_base =3D devm_ioremap(dev, res->start, + resource_size(res)); + if (IS_ERR(pmic_arb->rd_base)) + return PTR_ERR(pmic_arb->rd_base); + + res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, + "chnls"); + pmic_arb->wr_base =3D devm_ioremap(dev, res->start, + resource_size(res)); + if (IS_ERR(pmic_arb->wr_base)) + return PTR_ERR(pmic_arb->wr_base); + + return 0; +} + +static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb_bus *bus, u16 ppi= d) { u16 apid_valid; =20 - apid_valid =3D pmic_arb->ppid_to_apid[ppid]; + apid_valid =3D bus->ppid_to_apid[ppid]; if (!(apid_valid & PMIC_ARB_APID_VALID)) - apid_valid =3D pmic_arb_find_apid(pmic_arb, ppid); + apid_valid =3D pmic_arb_find_apid(bus, ppid); if (!(apid_valid & PMIC_ARB_APID_VALID)) return -ENODEV; =20 return apid_valid & ~PMIC_ARB_APID_VALID; } =20 -static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb) +static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb_bus *bus) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; struct apid_data *apidd; struct apid_data *prev_apidd; u16 i, apid, ppid, apid_max; @@ -1065,9 +1178,9 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic= _arb *pmic_arb) * where N =3D number of APIDs supported by the primary bus and * M =3D number of APIDs supported by the secondary bus */ - apidd =3D &pmic_arb->apid_data[pmic_arb->base_apid]; - apid_max =3D pmic_arb->base_apid + pmic_arb->apid_count; - for (i =3D pmic_arb->base_apid; i < apid_max; i++, apidd++) { + apidd =3D &bus->apid_data[bus->base_apid]; + apid_max =3D bus->base_apid + bus->apid_count; + for (i =3D bus->base_apid; i < apid_max; i++, apidd++) { offset =3D pmic_arb->ver_ops->apid_map_offset(i); if (offset >=3D pmic_arb->core_size) break; @@ -1078,19 +1191,18 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pm= ic_arb *pmic_arb) ppid =3D (regval >> 8) & PMIC_ARB_PPID_MASK; is_irq_ee =3D PMIC_ARB_CHAN_IS_IRQ_OWNER(regval); =20 - regval =3D readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb, - i)); + regval =3D readl_relaxed(pmic_arb->ver_ops->apid_owner(bus, i)); apidd->write_ee =3D SPMI_OWNERSHIP_PERIPH2OWNER(regval); =20 apidd->irq_ee =3D is_irq_ee ? apidd->write_ee : INVALID_EE; =20 - valid =3D pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID; - apid =3D pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID; - prev_apidd =3D &pmic_arb->apid_data[apid]; + valid =3D bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID; + apid =3D bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID; + prev_apidd =3D &bus->apid_data[apid]; =20 if (!valid || apidd->write_ee =3D=3D pmic_arb->ee) { /* First PPID mapping or one for this EE */ - pmic_arb->ppid_to_apid[ppid] =3D i | PMIC_ARB_APID_VALID; + bus->ppid_to_apid[ppid] =3D i | PMIC_ARB_APID_VALID; } else if (valid && is_irq_ee && prev_apidd->write_ee =3D=3D pmic_arb->ee) { /* @@ -1101,42 +1213,43 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pm= ic_arb *pmic_arb) } =20 apidd->ppid =3D ppid; - pmic_arb->last_apid =3D i; + bus->last_apid =3D i; } =20 /* Dump the mapping table for debug purposes. */ - dev_dbg(&pmic_arb->spmic->dev, "PPID APID Write-EE IRQ-EE\n"); + dev_dbg(&bus->spmic->dev, "PPID APID Write-EE IRQ-EE\n"); for (ppid =3D 0; ppid < PMIC_ARB_MAX_PPID; ppid++) { - apid =3D pmic_arb->ppid_to_apid[ppid]; + apid =3D bus->ppid_to_apid[ppid]; if (apid & PMIC_ARB_APID_VALID) { apid &=3D ~PMIC_ARB_APID_VALID; - apidd =3D &pmic_arb->apid_data[apid]; - dev_dbg(&pmic_arb->spmic->dev, "%#03X %3u %2u %2u\n", - ppid, apid, apidd->write_ee, apidd->irq_ee); + apidd =3D &bus->apid_data[apid]; + dev_dbg(&bus->spmic->dev, "%#03X %3u %2u %2u\n", + ppid, apid, apidd->write_ee, apidd->irq_ee); } } =20 return 0; } =20 -static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb *pmic_arb, u16 pp= id) +static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb_bus *bus, u16 ppi= d) { - if (!(pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID)) + if (!(bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID)) return -ENODEV; =20 - return pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID; + return bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID; } =20 /* v2 offset per ppid and per ee */ -static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 = addr, - enum pmic_arb_channel ch_type) +static int pmic_arb_offset_v2(struct spmi_pmic_arb_bus *bus, u8 sid, u16 a= ddr, + enum pmic_arb_channel ch_type) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u16 apid; u16 ppid; int rc; =20 ppid =3D sid << 8 | ((addr >> 8) & 0xFF); - rc =3D pmic_arb_ppid_to_apid_v2(pmic_arb, ppid); + rc =3D pmic_arb_ppid_to_apid_v2(bus, ppid); if (rc < 0) return rc; =20 @@ -1144,19 +1257,55 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb = *pmic_arb, u8 sid, u16 addr, return 0x1000 * pmic_arb->ee + 0x8000 * apid; } =20 +static int pmic_arb_init_apid_v5(struct spmi_pmic_arb_bus *bus, int index) +{ + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; + int ret; + + if (index) { + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n", + index); + return -EINVAL; + } + + bus->base_apid =3D 0; + bus->apid_count =3D readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) & + PMIC_ARB_FEATURES_PERIPH_MASK; + + if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) { + dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n", + bus->base_apid + bus->apid_count); + return -EINVAL; + } + + ret =3D pmic_arb_init_apid_min_max(bus); + if (ret) + return ret; + + ret =3D pmic_arb_read_apid_map_v5(bus); + if (ret) { + dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= =3D %d\n", + ret); + return ret; + } + + return 0; +} + /* * v5 offset per ee and per apid for observer channels and per apid for * read/write channels. */ -static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 = addr, - enum pmic_arb_channel ch_type) +static int pmic_arb_offset_v5(struct spmi_pmic_arb_bus *bus, u8 sid, u16 a= ddr, + enum pmic_arb_channel ch_type) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u16 apid; int rc; u32 offset =3D 0; u16 ppid =3D (sid << 8) | (addr >> 8); =20 - rc =3D pmic_arb_ppid_to_apid_v5(pmic_arb, ppid); + rc =3D pmic_arb_ppid_to_apid_v5(bus, ppid); if (rc < 0) return rc; =20 @@ -1166,8 +1315,8 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *p= mic_arb, u8 sid, u16 addr, offset =3D 0x10000 * pmic_arb->ee + 0x80 * apid; break; case PMIC_ARB_CHANNEL_RW: - if (pmic_arb->apid_data[apid].write_ee !=3D pmic_arb->ee) { - dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=3D%u, addr= =3D0x%04X\n", + if (bus->apid_data[apid].write_ee !=3D pmic_arb->ee) { + dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=3D%u, addr=3D0x= %04X\n", sid, addr); return -EPERM; } @@ -1178,19 +1327,75 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb = *pmic_arb, u8 sid, u16 addr, return offset; } =20 +static int pmic_arb_get_core_resources_v7(struct platform_device *pdev, + void __iomem *core) +{ + struct spmi_pmic_arb *pmic_arb =3D platform_get_drvdata(pdev); + int ret =3D pmic_arb_get_core_resources_v2(pdev, core); + + pmic_arb->max_periphs =3D PMIC_ARB_MAX_PERIPHS_V7; + + return ret; +} + +/* + * Only v7 supports 2 bus buses. Each bus will get a different apid count, + * read from different registers. + */ +static int pmic_arb_init_apid_v7(struct spmi_pmic_arb_bus *bus, int index) +{ + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; + int ret; + + if (index =3D=3D 0) { + bus->base_apid =3D 0; + bus->apid_count =3D readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) & + PMIC_ARB_FEATURES_PERIPH_MASK; + } else if (index =3D=3D 1) { + bus->base_apid =3D readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) & + PMIC_ARB_FEATURES_PERIPH_MASK; + bus->apid_count =3D readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) & + PMIC_ARB_FEATURES_PERIPH_MASK; + } else { + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n", + bus->id); + return -EINVAL; + } + + if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) { + dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n", + bus->base_apid + bus->apid_count); + return -EINVAL; + } + + ret =3D pmic_arb_init_apid_min_max(bus); + if (ret) + return ret; + + ret =3D pmic_arb_read_apid_map_v5(bus); + if (ret) { + dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= =3D %d\n", + ret); + return ret; + } + + return 0; +} + /* * v7 offset per ee and per apid for observer channels and per apid for * read/write channels. */ -static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 = addr, - enum pmic_arb_channel ch_type) +static int pmic_arb_offset_v7(struct spmi_pmic_arb_bus *bus, u8 sid, u16 a= ddr, + enum pmic_arb_channel ch_type) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; u16 apid; int rc; u32 offset =3D 0; u16 ppid =3D (sid << 8) | (addr >> 8); =20 - rc =3D pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid); + rc =3D pmic_arb->ver_ops->ppid_to_apid(bus, ppid); if (rc < 0) return rc; =20 @@ -1200,8 +1405,8 @@ static int pmic_arb_offset_v7(struct spmi_pmic_arb *p= mic_arb, u8 sid, u16 addr, offset =3D 0x8000 * pmic_arb->ee + 0x20 * apid; break; case PMIC_ARB_CHANNEL_RW: - if (pmic_arb->apid_data[apid].write_ee !=3D pmic_arb->ee) { - dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=3D%u, addr= =3D0x%04X\n", + if (bus->apid_data[apid].write_ee !=3D pmic_arb->ee) { + dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=3D%u, addr=3D0x= %04X\n", sid, addr); return -EPERM; } @@ -1223,104 +1428,110 @@ static u32 pmic_arb_fmt_cmd_v2(u8 opc, u8 sid, u1= 6 addr, u8 bc) } =20 static void __iomem * -pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x20 * m + 0x4 * n; + return bus->intr + 0x20 * m + 0x4 * n; } =20 static void __iomem * -pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x100000 + 0x1000 * m + 0x4 * n; + return bus->intr + 0x100000 + 0x1000 * m + 0x4 * n; } =20 static void __iomem * -pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x200000 + 0x1000 * m + 0x4 * n; + return bus->intr + 0x200000 + 0x1000 * m + 0x4 * n; } =20 static void __iomem * -pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x10000 * m + 0x4 * n; + return bus->intr + 0x10000 * m + 0x4 * n; } =20 static void __iomem * -pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x1000 * m + 0x4 * n; + return bus->intr + 0x1000 * m + 0x4 * n; } =20 static void __iomem * -pmic_arb_acc_enable_v1(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_acc_enable_v1(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x200 + 0x4 * n; + return bus->intr + 0x200 + 0x4 * n; } =20 static void __iomem * -pmic_arb_acc_enable_v2(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_acc_enable_v2(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x1000 * n; + return bus->intr + 0x1000 * n; } =20 static void __iomem * -pmic_arb_acc_enable_v5(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_acc_enable_v5(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; return pmic_arb->wr_base + 0x100 + 0x10000 * n; } =20 static void __iomem * -pmic_arb_acc_enable_v7(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_acc_enable_v7(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; return pmic_arb->wr_base + 0x100 + 0x1000 * n; } =20 static void __iomem * -pmic_arb_irq_status_v1(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_status_v1(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x600 + 0x4 * n; + return bus->intr + 0x600 + 0x4 * n; } =20 static void __iomem * -pmic_arb_irq_status_v2(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_status_v2(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x4 + 0x1000 * n; + return bus->intr + 0x4 + 0x1000 * n; } =20 static void __iomem * -pmic_arb_irq_status_v5(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_status_v5(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; return pmic_arb->wr_base + 0x104 + 0x10000 * n; } =20 static void __iomem * -pmic_arb_irq_status_v7(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_status_v7(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; return pmic_arb->wr_base + 0x104 + 0x1000 * n; } =20 static void __iomem * -pmic_arb_irq_clear_v1(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_clear_v1(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0xA00 + 0x4 * n; + return bus->intr + 0xA00 + 0x4 * n; } =20 static void __iomem * -pmic_arb_irq_clear_v2(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_clear_v2(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x8 + 0x1000 * n; + return bus->intr + 0x8 + 0x1000 * n; } =20 static void __iomem * -pmic_arb_irq_clear_v5(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_clear_v5(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; return pmic_arb->wr_base + 0x108 + 0x10000 * n; } =20 static void __iomem * -pmic_arb_irq_clear_v7(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_clear_v7(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb =3D bus->pmic_arb; return pmic_arb->wr_base + 0x108 + 0x1000 * n; } =20 @@ -1340,9 +1551,9 @@ static u32 pmic_arb_apid_map_offset_v7(u16 n) } =20 static void __iomem * -pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_apid_owner_v2(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->cnfg + 0x700 + 0x4 * n; + return bus->cnfg + 0x700 + 0x4 * n; } =20 /* @@ -1351,13 +1562,15 @@ pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_a= rb, u16 n) * 0. */ static void __iomem * -pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_apid_owner_v7(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->cnfg + 0x4 * (n - pmic_arb->base_apid); + return bus->cnfg + 0x4 * (n - bus->base_apid); } =20 static const struct pmic_arb_ver_ops pmic_arb_v1 =3D { .ver_str =3D "v1", + .get_core_resources =3D pmic_arb_get_core_resources_v1, + .init_apid =3D pmic_arb_init_apid_v1, .ppid_to_apid =3D pmic_arb_ppid_to_apid_v1, .non_data_cmd =3D pmic_arb_non_data_cmd_v1, .offset =3D pmic_arb_offset_v1, @@ -1372,6 +1585,8 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 =3D { =20 static const struct pmic_arb_ver_ops pmic_arb_v2 =3D { .ver_str =3D "v2", + .get_core_resources =3D pmic_arb_get_core_resources_v2, + .init_apid =3D pmic_arb_init_apid_v1, .ppid_to_apid =3D pmic_arb_ppid_to_apid_v2, .non_data_cmd =3D pmic_arb_non_data_cmd_v2, .offset =3D pmic_arb_offset_v2, @@ -1386,6 +1601,8 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 =3D { =20 static const struct pmic_arb_ver_ops pmic_arb_v3 =3D { .ver_str =3D "v3", + .get_core_resources =3D pmic_arb_get_core_resources_v2, + .init_apid =3D pmic_arb_init_apid_v1, .ppid_to_apid =3D pmic_arb_ppid_to_apid_v2, .non_data_cmd =3D pmic_arb_non_data_cmd_v2, .offset =3D pmic_arb_offset_v2, @@ -1400,6 +1617,8 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 =3D { =20 static const struct pmic_arb_ver_ops pmic_arb_v5 =3D { .ver_str =3D "v5", + .get_core_resources =3D pmic_arb_get_core_resources_v2, + .init_apid =3D pmic_arb_init_apid_v5, .ppid_to_apid =3D pmic_arb_ppid_to_apid_v5, .non_data_cmd =3D pmic_arb_non_data_cmd_v2, .offset =3D pmic_arb_offset_v5, @@ -1414,6 +1633,8 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 =3D { =20 static const struct pmic_arb_ver_ops pmic_arb_v7 =3D { .ver_str =3D "v7", + .get_core_resources =3D pmic_arb_get_core_resources_v7, + .init_apid =3D pmic_arb_init_apid_v7, .ppid_to_apid =3D pmic_arb_ppid_to_apid_v5, .non_data_cmd =3D pmic_arb_non_data_cmd_v2, .offset =3D pmic_arb_offset_v7, @@ -1433,22 +1654,153 @@ static const struct irq_domain_ops pmic_arb_irq_do= main_ops =3D { .translate =3D qpnpint_irq_domain_translate, }; =20 +static int spmi_pmic_arb_bus_init(struct platform_device *pdev, + struct device_node *node, + struct spmi_pmic_arb *pmic_arb) +{ + int bus_index =3D pmic_arb->buses_available; + struct spmi_pmic_arb_bus *bus =3D &pmic_arb->buses[bus_index]; + struct device *dev =3D &pdev->dev; + struct spmi_controller *ctrl; + void __iomem *intr; + void __iomem *cnfg; + int index, ret; + u32 irq; + + ctrl =3D devm_spmi_controller_alloc(dev, sizeof(*ctrl)); + if (IS_ERR(ctrl)) + return PTR_ERR(ctrl); + + ctrl->cmd =3D pmic_arb_cmd; + ctrl->read_cmd =3D pmic_arb_read_cmd; + ctrl->write_cmd =3D pmic_arb_write_cmd; + + bus =3D spmi_controller_get_drvdata(ctrl); + bus->spmic =3D ctrl; + + bus->ppid_to_apid =3D devm_kcalloc(dev, PMIC_ARB_MAX_PPID, + sizeof(*bus->ppid_to_apid), + GFP_KERNEL); + if (!bus->ppid_to_apid) + return -ENOMEM; + + bus->apid_data =3D devm_kcalloc(dev, pmic_arb->max_periphs, + sizeof(*bus->apid_data), + GFP_KERNEL); + if (!bus->apid_data) + return -ENOMEM; + + /* Optional property for v7: */ + of_property_read_u32(node, "qcom,bus-id", &bus_index); + if (bus_index !=3D pmic_arb->buses_available) { + dev_err(dev, "wrong bus-id value"); + return -EINVAL; + } + + index =3D of_property_match_string(node, "reg-names", "cnfg"); + if (index < 0) { + dev_err(dev, "cnfg reg region missing"); + return -EINVAL; + } + + cnfg =3D devm_of_iomap(dev, node, index, NULL); + if (IS_ERR(cnfg)) + return PTR_ERR(cnfg); + + index =3D of_property_match_string(node, "reg-names", "intr"); + if (index < 0) { + dev_err(dev, "intr reg region missing"); + return -EINVAL; + } + + intr =3D devm_of_iomap(dev, node, index, NULL); + if (IS_ERR(intr)) + return PTR_ERR(intr); + + irq =3D of_irq_get_byname(node, "periph_irq"); + if (irq < 0) + return irq; + + bus->pmic_arb =3D pmic_arb; + bus->intr =3D intr; + bus->cnfg =3D cnfg; + bus->irq =3D irq; + bus->id =3D bus_index; + + ret =3D pmic_arb->ver_ops->init_apid(bus, index); + if (ret) + return ret; + + dev_dbg(&pdev->dev, "adding irq domain for bus %d\n", bus_index); + + bus->domain =3D irq_domain_add_tree(dev->of_node, + &pmic_arb_irq_domain_ops, bus); + if (!bus->domain) { + dev_err(&pdev->dev, "unable to create irq_domain\n"); + return -ENOMEM; + } + + irq_set_chained_handler_and_data(bus->irq, + pmic_arb_chained_irq, bus); + + bus->spmic->dev.of_node =3D node; + dev_set_name(&bus->spmic->dev, "spmi-%d", bus_index); + + ret =3D devm_spmi_controller_add(dev, bus->spmic); + if (ret) + return ret; + + pmic_arb->buses_available++; + + return 0; +} + +static int spmi_pmic_arb_register_buses(struct spmi_pmic_arb *pmic_arb, + struct platform_device *pdev) +{ + struct device *dev =3D &pdev->dev; + struct device_node *node =3D dev->of_node; + struct device_node *child; + int ret; + + for_each_available_child_of_node(node, child) + if (of_node_name_eq(child, "bus")) { + ret =3D spmi_pmic_arb_bus_init(pdev, child, pmic_arb); + if (ret) + return ret; + } + + if (!pmic_arb->buses_available) + ret =3D spmi_pmic_arb_bus_init(pdev, node, pmic_arb); + + return ret; +} + +static void spmi_pmic_arb_deregister_buses(struct spmi_pmic_arb *pmic_arb) +{ + int i; + + for (i =3D 0; i < pmic_arb->buses_available; i++) { + struct spmi_pmic_arb_bus *bus =3D &pmic_arb->buses[i]; + + irq_set_chained_handler_and_data(bus->irq, + NULL, NULL); + irq_domain_remove(bus->domain); + } +} + static int spmi_pmic_arb_probe(struct platform_device *pdev) { struct spmi_pmic_arb *pmic_arb; - struct spmi_controller *ctrl; + struct device *dev =3D &pdev->dev; struct resource *res; void __iomem *core; - u32 *mapping_table; u32 channel, ee, hw_ver; int err; =20 - ctrl =3D devm_spmi_controller_alloc(&pdev->dev, sizeof(*pmic_arb)); - if (IS_ERR(ctrl)) - return PTR_ERR(ctrl); - - pmic_arb =3D spmi_controller_get_drvdata(ctrl); - pmic_arb->spmic =3D ctrl; + pmic_arb =3D devm_kzalloc(dev, sizeof(*pmic_arb), GFP_KERNEL); + if (!pmic_arb) + return -ENOMEM; =20 /* * Please don't replace this with devm_platform_ioremap_resource() or @@ -1461,118 +1813,34 @@ static int spmi_pmic_arb_probe(struct platform_dev= ice *pdev) * which does not result in a devm_request_mem_region() call. */ res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, "core"); - core =3D devm_ioremap(&ctrl->dev, res->start, resource_size(res)); + core =3D devm_ioremap(dev, res->start, resource_size(res)); if (IS_ERR(core)) return PTR_ERR(core); =20 pmic_arb->core_size =3D resource_size(res); =20 - pmic_arb->ppid_to_apid =3D devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID, - sizeof(*pmic_arb->ppid_to_apid), - GFP_KERNEL); - if (!pmic_arb->ppid_to_apid) - return -ENOMEM; + platform_set_drvdata(pdev, pmic_arb); + raw_spin_lock_init(&pmic_arb->lock); =20 hw_ver =3D readl_relaxed(core + PMIC_ARB_VERSION); - - if (hw_ver < PMIC_ARB_VERSION_V2_MIN) { + if (hw_ver < PMIC_ARB_VERSION_V2_MIN) pmic_arb->ver_ops =3D &pmic_arb_v1; - pmic_arb->wr_base =3D core; - pmic_arb->rd_base =3D core; - } else { - pmic_arb->core =3D core; - - if (hw_ver < PMIC_ARB_VERSION_V3_MIN) - pmic_arb->ver_ops =3D &pmic_arb_v2; - else if (hw_ver < PMIC_ARB_VERSION_V5_MIN) - pmic_arb->ver_ops =3D &pmic_arb_v3; - else if (hw_ver < PMIC_ARB_VERSION_V7_MIN) - pmic_arb->ver_ops =3D &pmic_arb_v5; - else - pmic_arb->ver_ops =3D &pmic_arb_v7; - - res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, - "obsrvr"); - pmic_arb->rd_base =3D devm_ioremap(&ctrl->dev, res->start, - resource_size(res)); - if (IS_ERR(pmic_arb->rd_base)) - return PTR_ERR(pmic_arb->rd_base); - - res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, - "chnls"); - pmic_arb->wr_base =3D devm_ioremap(&ctrl->dev, res->start, - resource_size(res)); - if (IS_ERR(pmic_arb->wr_base)) - return PTR_ERR(pmic_arb->wr_base); - } - - pmic_arb->max_periphs =3D PMIC_ARB_MAX_PERIPHS; - - if (hw_ver >=3D PMIC_ARB_VERSION_V7_MIN) { - pmic_arb->max_periphs =3D PMIC_ARB_MAX_PERIPHS_V7; - /* Optional property for v7: */ - of_property_read_u32(pdev->dev.of_node, "qcom,bus-id", - &pmic_arb->bus_instance); - if (pmic_arb->bus_instance > 1) { - dev_err(&pdev->dev, "invalid bus instance (%u) specified\n", - pmic_arb->bus_instance); - return -EINVAL; - } - - if (pmic_arb->bus_instance =3D=3D 0) { - pmic_arb->base_apid =3D 0; - pmic_arb->apid_count =3D - readl_relaxed(core + PMIC_ARB_FEATURES) & - PMIC_ARB_FEATURES_PERIPH_MASK; - } else { - pmic_arb->base_apid =3D - readl_relaxed(core + PMIC_ARB_FEATURES) & - PMIC_ARB_FEATURES_PERIPH_MASK; - pmic_arb->apid_count =3D - readl_relaxed(core + PMIC_ARB_FEATURES1) & - PMIC_ARB_FEATURES_PERIPH_MASK; - } - - if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) { - dev_err(&pdev->dev, "Unsupported APID count %d detected\n", - pmic_arb->base_apid + pmic_arb->apid_count); - return -EINVAL; - } - } else if (hw_ver >=3D PMIC_ARB_VERSION_V5_MIN) { - pmic_arb->base_apid =3D 0; - pmic_arb->apid_count =3D readl_relaxed(core + PMIC_ARB_FEATURES) & - PMIC_ARB_FEATURES_PERIPH_MASK; - - if (pmic_arb->apid_count > pmic_arb->max_periphs) { - dev_err(&pdev->dev, "Unsupported APID count %d detected\n", - pmic_arb->apid_count); - return -EINVAL; - } - } + else if (hw_ver < PMIC_ARB_VERSION_V3_MIN) + pmic_arb->ver_ops =3D &pmic_arb_v2; + else if (hw_ver < PMIC_ARB_VERSION_V5_MIN) + pmic_arb->ver_ops =3D &pmic_arb_v3; + else if (hw_ver < PMIC_ARB_VERSION_V7_MIN) + pmic_arb->ver_ops =3D &pmic_arb_v5; + else + pmic_arb->ver_ops =3D &pmic_arb_v7; =20 - pmic_arb->apid_data =3D devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs, - sizeof(*pmic_arb->apid_data), - GFP_KERNEL); - if (!pmic_arb->apid_data) - return -ENOMEM; + err =3D pmic_arb->ver_ops->get_core_resources(pdev, core); + if (err) + return err; =20 - dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n", + dev_info(&pdev->dev, "PMIC arbiter version %s (0x%x)\n", pmic_arb->ver_ops->ver_str, hw_ver); =20 - res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr"); - pmic_arb->intr =3D devm_ioremap_resource(&ctrl->dev, res); - if (IS_ERR(pmic_arb->intr)) - return PTR_ERR(pmic_arb->intr); - - res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, "cnfg"); - pmic_arb->cnfg =3D devm_ioremap_resource(&ctrl->dev, res); - if (IS_ERR(pmic_arb->cnfg)) - return PTR_ERR(pmic_arb->cnfg); - - pmic_arb->irq =3D platform_get_irq_byname(pdev, "periph_irq"); - if (pmic_arb->irq < 0) - return pmic_arb->irq; - err =3D of_property_read_u32(pdev->dev.of_node, "qcom,channel", &channel); if (err) { dev_err(&pdev->dev, "channel unspecified.\n"); @@ -1597,64 +1865,16 @@ static int spmi_pmic_arb_probe(struct platform_devi= ce *pdev) dev_err(&pdev->dev, "invalid EE (%u) specified\n", ee); return -EINVAL; } - pmic_arb->ee =3D ee; - mapping_table =3D devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs, - sizeof(*mapping_table), GFP_KERNEL); - if (!mapping_table) - return -ENOMEM; - - pmic_arb->mapping_table =3D mapping_table; - /* Initialize max_apid/min_apid to the opposite bounds, during - * the irq domain translation, we are sure to update these */ - pmic_arb->max_apid =3D 0; - pmic_arb->min_apid =3D pmic_arb->max_periphs - 1; - - platform_set_drvdata(pdev, ctrl); - raw_spin_lock_init(&pmic_arb->lock); - - ctrl->cmd =3D pmic_arb_cmd; - ctrl->read_cmd =3D pmic_arb_read_cmd; - ctrl->write_cmd =3D pmic_arb_write_cmd; - - if (hw_ver >=3D PMIC_ARB_VERSION_V5_MIN) { - err =3D pmic_arb_read_apid_map_v5(pmic_arb); - if (err) { - dev_err(&pdev->dev, "could not read APID->PPID mapping table, rc=3D %d\= n", - err); - return err; - } - } - - dev_dbg(&pdev->dev, "adding irq domain\n"); - pmic_arb->domain =3D irq_domain_add_tree(pdev->dev.of_node, - &pmic_arb_irq_domain_ops, pmic_arb); - if (!pmic_arb->domain) { - dev_err(&pdev->dev, "unable to create irq_domain\n"); - return -ENOMEM; - } - - irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq, - pmic_arb); - err =3D spmi_controller_add(ctrl); - if (err) - goto err_domain_remove; =20 - return 0; - -err_domain_remove: - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL); - irq_domain_remove(pmic_arb->domain); - return err; + return spmi_pmic_arb_register_buses(pmic_arb, pdev); } =20 static void spmi_pmic_arb_remove(struct platform_device *pdev) { - struct spmi_controller *ctrl =3D platform_get_drvdata(pdev); - struct spmi_pmic_arb *pmic_arb =3D spmi_controller_get_drvdata(ctrl); - spmi_controller_remove(ctrl); - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL); - irq_domain_remove(pmic_arb->domain); + struct spmi_pmic_arb *pmic_arb =3D platform_get_drvdata(pdev); + + spmi_pmic_arb_deregister_buses(pmic_arb); } =20 static const struct of_device_id spmi_pmic_arb_match_table[] =3D { --- base-commit: 445a555e0623387fa9b94e68e61681717e70200a change-id: 20240207-spmi-multi-master-support-832a704b779b Best regards, --=20 Abel Vesa