ptp_qoriq: convert to use ptp_qoriq_init/free
Moved QorIQ PTP clock initialization/free into new functions ptp_qoriq_init()/ptp_qoriq_free(). These functions could also be reused by ENETC PTP drvier which is a PCI driver for same 1588 timer IP block. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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73356e4ea8
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ff54571a74
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@ -458,25 +458,17 @@ static int ptp_qoriq_auto_config(struct ptp_qoriq *ptp_qoriq,
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return 0;
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}
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static int ptp_qoriq_probe(struct platform_device *dev)
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int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base,
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const struct ptp_clock_info caps)
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{
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struct device_node *node = dev->dev.of_node;
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struct ptp_qoriq *ptp_qoriq;
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struct device_node *node = ptp_qoriq->dev->of_node;
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struct ptp_qoriq_registers *regs;
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struct timespec64 now;
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int err = -ENOMEM;
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u32 tmr_ctrl;
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unsigned long flags;
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void __iomem *base;
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u32 tmr_ctrl;
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ptp_qoriq = kzalloc(sizeof(*ptp_qoriq), GFP_KERNEL);
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if (!ptp_qoriq)
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goto no_memory;
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err = -EINVAL;
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ptp_qoriq->dev = &dev->dev;
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ptp_qoriq->caps = ptp_qoriq_caps;
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ptp_qoriq->base = base;
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ptp_qoriq->caps = caps;
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if (of_property_read_u32(node, "fsl,cksel", &ptp_qoriq->cksel))
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ptp_qoriq->cksel = DEFAULT_CKSEL;
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@ -501,44 +493,9 @@ static int ptp_qoriq_probe(struct platform_device *dev)
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pr_warn("device tree node missing required elements, try automatic configuration\n");
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if (ptp_qoriq_auto_config(ptp_qoriq, node))
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goto no_config;
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return -ENODEV;
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}
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err = -ENODEV;
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ptp_qoriq->irq = platform_get_irq(dev, 0);
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if (ptp_qoriq->irq < 0) {
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pr_err("irq not in device tree\n");
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goto no_node;
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}
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if (request_irq(ptp_qoriq->irq, ptp_qoriq_isr, IRQF_SHARED,
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DRIVER, ptp_qoriq)) {
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pr_err("request_irq failed\n");
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goto no_node;
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}
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ptp_qoriq->rsrc = platform_get_resource(dev, IORESOURCE_MEM, 0);
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if (!ptp_qoriq->rsrc) {
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pr_err("no resource\n");
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goto no_resource;
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}
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if (request_resource(&iomem_resource, ptp_qoriq->rsrc)) {
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pr_err("resource busy\n");
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goto no_resource;
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}
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spin_lock_init(&ptp_qoriq->lock);
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base = ioremap(ptp_qoriq->rsrc->start,
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resource_size(ptp_qoriq->rsrc));
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if (!base) {
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pr_err("ioremap ptp registers failed\n");
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goto no_ioremap;
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}
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ptp_qoriq->base = base;
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if (of_device_is_compatible(node, "fsl,fman-ptp-timer")) {
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ptp_qoriq->regs.ctrl_regs = base + FMAN_CTRL_REGS_OFFSET;
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ptp_qoriq->regs.alarm_regs = base + FMAN_ALARM_REGS_OFFSET;
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@ -558,6 +515,7 @@ static int ptp_qoriq_probe(struct platform_device *dev)
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(ptp_qoriq->tclk_period & TCLK_PERIOD_MASK) << TCLK_PERIOD_SHIFT |
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(ptp_qoriq->cksel & CKSEL_MASK) << CKSEL_SHIFT;
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spin_lock_init(&ptp_qoriq->lock);
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spin_lock_irqsave(&ptp_qoriq->lock, flags);
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regs = &ptp_qoriq->regs;
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@ -571,16 +529,77 @@ static int ptp_qoriq_probe(struct platform_device *dev)
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spin_unlock_irqrestore(&ptp_qoriq->lock, flags);
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ptp_qoriq->clock = ptp_clock_register(&ptp_qoriq->caps, &dev->dev);
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if (IS_ERR(ptp_qoriq->clock)) {
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err = PTR_ERR(ptp_qoriq->clock);
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goto no_clock;
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}
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ptp_qoriq->clock = ptp_clock_register(&ptp_qoriq->caps, ptp_qoriq->dev);
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if (IS_ERR(ptp_qoriq->clock))
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return PTR_ERR(ptp_qoriq->clock);
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ptp_qoriq->phc_index = ptp_clock_index(ptp_qoriq->clock);
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ptp_qoriq_create_debugfs(ptp_qoriq);
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platform_set_drvdata(dev, ptp_qoriq);
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return 0;
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}
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EXPORT_SYMBOL_GPL(ptp_qoriq_init);
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void ptp_qoriq_free(struct ptp_qoriq *ptp_qoriq)
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{
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struct ptp_qoriq_registers *regs = &ptp_qoriq->regs;
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qoriq_write(®s->ctrl_regs->tmr_temask, 0);
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qoriq_write(®s->ctrl_regs->tmr_ctrl, 0);
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ptp_qoriq_remove_debugfs(ptp_qoriq);
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ptp_clock_unregister(ptp_qoriq->clock);
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iounmap(ptp_qoriq->base);
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free_irq(ptp_qoriq->irq, ptp_qoriq);
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}
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EXPORT_SYMBOL_GPL(ptp_qoriq_free);
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static int ptp_qoriq_probe(struct platform_device *dev)
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{
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struct ptp_qoriq *ptp_qoriq;
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int err = -ENOMEM;
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void __iomem *base;
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ptp_qoriq = kzalloc(sizeof(*ptp_qoriq), GFP_KERNEL);
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if (!ptp_qoriq)
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goto no_memory;
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ptp_qoriq->dev = &dev->dev;
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err = -ENODEV;
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ptp_qoriq->irq = platform_get_irq(dev, 0);
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if (ptp_qoriq->irq < 0) {
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pr_err("irq not in device tree\n");
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goto no_node;
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}
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if (request_irq(ptp_qoriq->irq, ptp_qoriq_isr, IRQF_SHARED,
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DRIVER, ptp_qoriq)) {
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pr_err("request_irq failed\n");
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goto no_node;
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}
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ptp_qoriq->rsrc = platform_get_resource(dev, IORESOURCE_MEM, 0);
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if (!ptp_qoriq->rsrc) {
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pr_err("no resource\n");
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goto no_resource;
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}
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if (request_resource(&iomem_resource, ptp_qoriq->rsrc)) {
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pr_err("resource busy\n");
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goto no_resource;
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}
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base = ioremap(ptp_qoriq->rsrc->start,
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resource_size(ptp_qoriq->rsrc));
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if (!base) {
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pr_err("ioremap ptp registers failed\n");
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goto no_ioremap;
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}
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err = ptp_qoriq_init(ptp_qoriq, base, ptp_qoriq_caps);
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if (err)
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goto no_clock;
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platform_set_drvdata(dev, ptp_qoriq);
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return 0;
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no_clock:
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@ -589,7 +608,6 @@ static int ptp_qoriq_probe(struct platform_device *dev)
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release_resource(ptp_qoriq->rsrc);
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no_resource:
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free_irq(ptp_qoriq->irq, ptp_qoriq);
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no_config:
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no_node:
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kfree(ptp_qoriq);
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no_memory:
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@ -599,18 +617,10 @@ static int ptp_qoriq_probe(struct platform_device *dev)
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static int ptp_qoriq_remove(struct platform_device *dev)
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{
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struct ptp_qoriq *ptp_qoriq = platform_get_drvdata(dev);
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struct ptp_qoriq_registers *regs = &ptp_qoriq->regs;
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qoriq_write(®s->ctrl_regs->tmr_temask, 0);
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qoriq_write(®s->ctrl_regs->tmr_ctrl, 0);
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ptp_qoriq_remove_debugfs(ptp_qoriq);
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ptp_clock_unregister(ptp_qoriq->clock);
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iounmap(ptp_qoriq->base);
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ptp_qoriq_free(ptp_qoriq);
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release_resource(ptp_qoriq->rsrc);
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free_irq(ptp_qoriq->irq, ptp_qoriq);
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kfree(ptp_qoriq);
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return 0;
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}
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@ -173,6 +173,9 @@ static inline void qoriq_write(unsigned __iomem *addr, u32 val)
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}
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irqreturn_t ptp_qoriq_isr(int irq, void *priv);
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int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base,
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const struct ptp_clock_info caps);
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void ptp_qoriq_free(struct ptp_qoriq *ptp_qoriq);
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int ptp_qoriq_adjfine(struct ptp_clock_info *ptp, long scaled_ppm);
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int ptp_qoriq_adjtime(struct ptp_clock_info *ptp, s64 delta);
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int ptp_qoriq_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts);
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