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spmi: pmic_arb: add support for PMIC bus arbiter v3
PMIC bus arbiter v3 supports 512 SPMI peripherals. Add the v3 operators to support this new arbiter version. Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Abhijeet Dharmapurikar
Greg Kroah-Hartman
parent
472eaf8bed
commit
319f68843d
@ -28,6 +28,7 @@
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/* PMIC Arbiter configuration registers */
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#define PMIC_ARB_VERSION 0x0000
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#define PMIC_ARB_VERSION_V2_MIN 0x20010000
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#define PMIC_ARB_VERSION_V3_MIN 0x30000000
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#define PMIC_ARB_INT_EN 0x0004
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/* PMIC Arbiter channel registers offsets */
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@ -96,6 +97,17 @@ enum pmic_arb_cmd_op_code {
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/* interrupt enable bit */
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#define SPMI_PIC_ACC_ENABLE_BIT BIT(0)
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#define HWIRQ(slave_id, periph_id, irq_id, apid) \
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((((slave_id) & 0xF) << 28) | \
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(((periph_id) & 0xFF) << 20) | \
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(((irq_id) & 0x7) << 16) | \
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(((apid) & 0x1FF) << 0))
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#define HWIRQ_SID(hwirq) (((hwirq) >> 28) & 0xF)
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#define HWIRQ_PER(hwirq) (((hwirq) >> 20) & 0xFF)
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#define HWIRQ_IRQ(hwirq) (((hwirq) >> 16) & 0x7)
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#define HWIRQ_APID(hwirq) (((hwirq) >> 0) & 0x1FF)
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struct pmic_arb_ver_ops;
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struct apid_data {
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@ -151,6 +163,8 @@ struct spmi_pmic_arb {
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/**
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* pmic_arb_ver: version dependent functionality.
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*
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* @ver_str: version string.
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* @ppid_to_apid: finds the apid for a given ppid.
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* @mode: access rights to specified pmic peripheral.
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* @non_data_cmd: on v1 issues an spmi non-data command.
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* on v2 no HW support, returns -EOPNOTSUPP.
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@ -167,8 +181,9 @@ struct spmi_pmic_arb {
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* on v2 offset of SPMI_PIC_IRQ_CLEARn.
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*/
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struct pmic_arb_ver_ops {
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const char *ver_str;
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int (*ppid_to_apid)(struct spmi_pmic_arb *pa, u8 sid, u16 addr,
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u8 *apid);
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u16 *apid);
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int (*mode)(struct spmi_pmic_arb *dev, u8 sid, u16 addr,
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mode_t *mode);
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/* spmi commands (read_cmd, write_cmd, cmd) functionality */
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@ -177,10 +192,10 @@ struct pmic_arb_ver_ops {
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u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc);
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int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid);
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/* Interrupts controller functionality (offset of PIC registers) */
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u32 (*owner_acc_status)(u8 m, u8 n);
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u32 (*acc_enable)(u8 n);
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u32 (*irq_status)(u8 n);
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u32 (*irq_clear)(u8 n);
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u32 (*owner_acc_status)(u8 m, u16 n);
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u32 (*acc_enable)(u16 n);
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u32 (*irq_status)(u16 n);
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u32 (*irq_clear)(u16 n);
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};
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static inline void pmic_arb_base_write(struct spmi_pmic_arb *pa,
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@ -462,8 +477,8 @@ static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf,
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size_t len)
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{
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struct spmi_pmic_arb *pa = irq_data_get_irq_chip_data(d);
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u8 sid = d->hwirq >> 24;
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u8 per = d->hwirq >> 16;
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u8 sid = HWIRQ_SID(d->hwirq);
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u8 per = HWIRQ_PER(d->hwirq);
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if (pmic_arb_write_cmd(pa->spmic, SPMI_CMD_EXT_WRITEL, sid,
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(per << 8) + reg, buf, len))
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@ -475,8 +490,8 @@ static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf,
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static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_t len)
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{
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struct spmi_pmic_arb *pa = irq_data_get_irq_chip_data(d);
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u8 sid = d->hwirq >> 24;
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u8 per = d->hwirq >> 16;
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u8 sid = HWIRQ_SID(d->hwirq);
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u8 per = HWIRQ_PER(d->hwirq);
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if (pmic_arb_read_cmd(pa->spmic, SPMI_CMD_EXT_READL, sid,
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(per << 8) + reg, buf, len))
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@ -485,7 +500,7 @@ static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_t len)
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d->irq);
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}
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static void cleanup_irq(struct spmi_pmic_arb *pa, u8 apid, int id)
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static void cleanup_irq(struct spmi_pmic_arb *pa, u16 apid, int id)
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{
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u16 ppid = pa->apid_data[apid].ppid;
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u8 sid = ppid >> 8;
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@ -507,20 +522,19 @@ static void cleanup_irq(struct spmi_pmic_arb *pa, u8 apid, int id)
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irq_mask, ppid);
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}
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static void periph_interrupt(struct spmi_pmic_arb *pa, u8 apid)
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static void periph_interrupt(struct spmi_pmic_arb *pa, u16 apid)
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{
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unsigned int irq;
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u32 status;
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int id;
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u8 sid = (pa->apid_data[apid].ppid >> 8) & 0xF;
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u8 per = pa->apid_data[apid].ppid & 0xFF;
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status = readl_relaxed(pa->intr + pa->ver_ops->irq_status(apid));
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while (status) {
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id = ffs(status) - 1;
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status &= ~BIT(id);
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irq = irq_find_mapping(pa->domain,
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pa->apid_data[apid].ppid << 16
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| id << 8
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| apid);
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irq = irq_find_mapping(pa->domain, HWIRQ(sid, per, id, apid));
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if (irq == 0) {
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cleanup_irq(pa, apid, id);
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continue;
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@ -561,8 +575,8 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
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static void qpnpint_irq_ack(struct irq_data *d)
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{
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struct spmi_pmic_arb *pa = irq_data_get_irq_chip_data(d);
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u8 irq = d->hwirq >> 8;
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u8 apid = d->hwirq;
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u8 irq = HWIRQ_IRQ(d->hwirq);
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u16 apid = HWIRQ_APID(d->hwirq);
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u8 data;
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writel_relaxed(BIT(irq), pa->intr + pa->ver_ops->irq_clear(apid));
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@ -573,7 +587,7 @@ static void qpnpint_irq_ack(struct irq_data *d)
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static void qpnpint_irq_mask(struct irq_data *d)
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{
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u8 irq = d->hwirq >> 8;
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u8 irq = HWIRQ_IRQ(d->hwirq);
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u8 data = BIT(irq);
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qpnpint_spmi_write(d, QPNPINT_REG_EN_CLR, &data, 1);
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@ -582,8 +596,8 @@ static void qpnpint_irq_mask(struct irq_data *d)
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static void qpnpint_irq_unmask(struct irq_data *d)
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{
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struct spmi_pmic_arb *pa = irq_data_get_irq_chip_data(d);
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u8 irq = d->hwirq >> 8;
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u8 apid = d->hwirq;
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u8 irq = HWIRQ_IRQ(d->hwirq);
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u16 apid = HWIRQ_APID(d->hwirq);
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u8 buf[2];
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writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT,
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@ -605,7 +619,7 @@ static void qpnpint_irq_unmask(struct irq_data *d)
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static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type)
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{
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struct spmi_pmic_arb_qpnpint_type type;
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u8 irq = d->hwirq >> 8;
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u8 irq = HWIRQ_IRQ(d->hwirq);
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u8 bit_mask_irq = BIT(irq);
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qpnpint_spmi_read(d, QPNPINT_REG_SET_TYPE, &type, sizeof(type));
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@ -642,7 +656,7 @@ static int qpnpint_get_irqchip_state(struct irq_data *d,
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enum irqchip_irq_state which,
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bool *state)
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{
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u8 irq = d->hwirq >> 8;
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u8 irq = HWIRQ_IRQ(d->hwirq);
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u8 status = 0;
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if (which != IRQCHIP_STATE_LINE_LEVEL)
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@ -674,7 +688,7 @@ static int qpnpint_irq_domain_dt_translate(struct irq_domain *d,
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{
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struct spmi_pmic_arb *pa = d->host_data;
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int rc;
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u8 apid;
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u16 apid;
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dev_dbg(&pa->spmic->dev,
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"intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
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@ -702,10 +716,7 @@ static int qpnpint_irq_domain_dt_translate(struct irq_domain *d,
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if (apid < pa->min_apid)
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pa->min_apid = apid;
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*out_hwirq = (intspec[0] & 0xF) << 24
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| (intspec[1] & 0xFF) << 16
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| (intspec[2] & 0x7) << 8
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| apid;
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*out_hwirq = HWIRQ(intspec[0], intspec[1], intspec[2], apid);
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*out_type = intspec[3] & IRQ_TYPE_SENSE_MASK;
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dev_dbg(&pa->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
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@ -728,7 +739,7 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
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}
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static int
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pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u8 *apid)
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pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u16 *apid)
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{
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u16 ppid = sid << 8 | ((addr >> 8) & 0xFF);
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u32 *mapping_table = pa->mapping_table;
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@ -776,7 +787,7 @@ pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u8 *apid)
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}
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static int
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pmic_arb_mode_v1(struct spmi_pmic_arb *pa, u8 sid, u16 addr, mode_t *mode)
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pmic_arb_mode_v1_v3(struct spmi_pmic_arb *pa, u8 sid, u16 addr, mode_t *mode)
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{
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*mode = S_IRUSR | S_IWUSR;
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return 0;
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@ -828,7 +839,7 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pa, u16 ppid)
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static int
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pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u8 *apid)
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pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u16 *apid)
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{
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u16 ppid = (sid << 8) | (addr >> 8);
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u16 apid_valid;
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@ -846,7 +857,7 @@ pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u8 *apid)
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static int
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pmic_arb_mode_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, mode_t *mode)
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{
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u8 apid;
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u16 apid;
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int rc;
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rc = pmic_arb_ppid_to_apid_v2(pa, sid, addr, &apid);
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@ -865,7 +876,7 @@ pmic_arb_mode_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, mode_t *mode)
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static int
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pmic_arb_offset_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u32 *offset)
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{
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u8 apid;
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u16 apid;
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int rc;
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rc = pmic_arb_ppid_to_apid_v2(pa, sid, addr, &apid);
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@ -886,49 +897,55 @@ static u32 pmic_arb_fmt_cmd_v2(u8 opc, u8 sid, u16 addr, u8 bc)
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return (opc << 27) | ((addr & 0xff) << 4) | (bc & 0x7);
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}
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static u32 pmic_arb_owner_acc_status_v1(u8 m, u8 n)
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static u32 pmic_arb_owner_acc_status_v1(u8 m, u16 n)
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{
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return 0x20 * m + 0x4 * n;
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}
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static u32 pmic_arb_owner_acc_status_v2(u8 m, u8 n)
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static u32 pmic_arb_owner_acc_status_v2(u8 m, u16 n)
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{
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return 0x100000 + 0x1000 * m + 0x4 * n;
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}
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static u32 pmic_arb_acc_enable_v1(u8 n)
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static u32 pmic_arb_owner_acc_status_v3(u8 m, u16 n)
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{
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return 0x200000 + 0x1000 * m + 0x4 * n;
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}
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static u32 pmic_arb_acc_enable_v1(u16 n)
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{
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return 0x200 + 0x4 * n;
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}
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static u32 pmic_arb_acc_enable_v2(u8 n)
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static u32 pmic_arb_acc_enable_v2(u16 n)
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{
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return 0x1000 * n;
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}
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static u32 pmic_arb_irq_status_v1(u8 n)
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static u32 pmic_arb_irq_status_v1(u16 n)
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{
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return 0x600 + 0x4 * n;
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}
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static u32 pmic_arb_irq_status_v2(u8 n)
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static u32 pmic_arb_irq_status_v2(u16 n)
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{
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return 0x4 + 0x1000 * n;
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}
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static u32 pmic_arb_irq_clear_v1(u8 n)
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static u32 pmic_arb_irq_clear_v1(u16 n)
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{
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return 0xA00 + 0x4 * n;
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}
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static u32 pmic_arb_irq_clear_v2(u8 n)
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static u32 pmic_arb_irq_clear_v2(u16 n)
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{
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return 0x8 + 0x1000 * n;
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}
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static const struct pmic_arb_ver_ops pmic_arb_v1 = {
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.ver_str = "v1",
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.ppid_to_apid = pmic_arb_ppid_to_apid_v1,
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.mode = pmic_arb_mode_v1,
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.mode = pmic_arb_mode_v1_v3,
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.non_data_cmd = pmic_arb_non_data_cmd_v1,
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.offset = pmic_arb_offset_v1,
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.fmt_cmd = pmic_arb_fmt_cmd_v1,
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@ -939,6 +956,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
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};
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static const struct pmic_arb_ver_ops pmic_arb_v2 = {
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.ver_str = "v2",
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.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
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.mode = pmic_arb_mode_v2,
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.non_data_cmd = pmic_arb_non_data_cmd_v2,
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@ -950,6 +968,19 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
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.irq_clear = pmic_arb_irq_clear_v2,
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};
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static const struct pmic_arb_ver_ops pmic_arb_v3 = {
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.ver_str = "v3",
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.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
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.mode = pmic_arb_mode_v1_v3,
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.non_data_cmd = pmic_arb_non_data_cmd_v2,
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.offset = pmic_arb_offset_v2,
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.fmt_cmd = pmic_arb_fmt_cmd_v2,
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.owner_acc_status = pmic_arb_owner_acc_status_v3,
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.acc_enable = pmic_arb_acc_enable_v2,
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.irq_status = pmic_arb_irq_status_v2,
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.irq_clear = pmic_arb_irq_clear_v2,
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};
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static const struct irq_domain_ops pmic_arb_irq_domain_ops = {
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.map = qpnpint_irq_domain_map,
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.xlate = qpnpint_irq_domain_dt_translate,
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@ -963,7 +994,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
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void __iomem *core;
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u32 channel, ee, hw_ver;
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int err;
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bool is_v1;
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ctrl = spmi_controller_alloc(&pdev->dev, sizeof(*pa));
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if (!ctrl)
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@ -987,18 +1017,18 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
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}
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hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
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is_v1 = (hw_ver < PMIC_ARB_VERSION_V2_MIN);
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dev_info(&ctrl->dev, "PMIC Arb Version-%d (0x%x)\n", (is_v1 ? 1 : 2),
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hw_ver);
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if (is_v1) {
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if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
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pa->ver_ops = &pmic_arb_v1;
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pa->wr_base = core;
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pa->rd_base = core;
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} else {
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pa->core = core;
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if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
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pa->ver_ops = &pmic_arb_v2;
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else
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pa->ver_ops = &pmic_arb_v3;
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/* the apid to ppid table starts at PMIC_ARB_REG_CHNL(0) */
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pa->max_periph = (pa->core_size - PMIC_ARB_REG_CHNL(0)) / 4;
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@ -1029,6 +1059,9 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
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}
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}
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dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
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pa->ver_ops->ver_str, hw_ver);
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
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pa->intr = devm_ioremap_resource(&ctrl->dev, res);
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if (IS_ERR(pa->intr)) {
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