diff options
| author | Alistair Popple <alistair@popple.id.au> | 2015-05-15 06:06:38 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-05-22 07:14:37 +0200 |
| commit | dce143c3381c355ef73be3dd97cf3ca1b15359b8 (patch) | |
| tree | 4ec32ccbbb59505699b2a983d9667cb5645c15d7 /drivers/char | |
| parent | powerpc/powernv: Add a virtual irqchip for opal events (diff) | |
| download | linux-dce143c3381c355ef73be3dd97cf3ca1b15359b8.tar.xz linux-dce143c3381c355ef73be3dd97cf3ca1b15359b8.zip | |
ipmi/powernv: Convert to irq event interface
Convert the opal ipmi driver to use the new irq interface for events.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Acked-by: Corey Minyard <cminyard@mvista.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: openipmi-developer@lists.sourceforge.net
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ipmi/ipmi_powernv.c | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/drivers/char/ipmi/ipmi_powernv.c b/drivers/char/ipmi/ipmi_powernv.c index 8753b0f6a317..9b409c0f14f7 100644 --- a/drivers/char/ipmi/ipmi_powernv.c +++ b/drivers/char/ipmi/ipmi_powernv.c @@ -15,6 +15,8 @@ #include <linux/list.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_irq.h> +#include <linux/interrupt.h> #include <asm/opal.h> @@ -23,8 +25,7 @@ struct ipmi_smi_powernv { u64 interface_id; struct ipmi_device_id ipmi_id; ipmi_smi_t intf; - u64 event; - struct notifier_block event_nb; + unsigned int irq; /** * We assume that there can only be one outstanding request, so @@ -197,15 +198,12 @@ static struct ipmi_smi_handlers ipmi_powernv_smi_handlers = { .poll = ipmi_powernv_poll, }; -static int ipmi_opal_event(struct notifier_block *nb, - unsigned long events, void *change) +static irqreturn_t ipmi_opal_event(int irq, void *data) { - struct ipmi_smi_powernv *smi = container_of(nb, - struct ipmi_smi_powernv, event_nb); + struct ipmi_smi_powernv *smi = data; - if (events & smi->event) - ipmi_powernv_recv(smi); - return 0; + ipmi_powernv_recv(smi); + return IRQ_HANDLED; } static int ipmi_powernv_probe(struct platform_device *pdev) @@ -240,13 +238,16 @@ static int ipmi_powernv_probe(struct platform_device *pdev) goto err_free; } - ipmi->event = 1ull << prop; - ipmi->event_nb.notifier_call = ipmi_opal_event; + ipmi->irq = irq_of_parse_and_map(dev->of_node, 0); + if (!ipmi->irq) { + dev_info(dev, "Unable to map irq from device tree\n"); + ipmi->irq = opal_event_request(prop); + } - rc = opal_notifier_register(&ipmi->event_nb); - if (rc) { - dev_warn(dev, "OPAL notifier registration failed (%d)\n", rc); - goto err_free; + if (request_irq(ipmi->irq, ipmi_opal_event, IRQ_TYPE_LEVEL_HIGH, + "opal-ipmi", ipmi)) { + dev_warn(dev, "Unable to request irq\n"); + goto err_dispose; } ipmi->opal_msg = devm_kmalloc(dev, @@ -271,7 +272,9 @@ static int ipmi_powernv_probe(struct platform_device *pdev) err_free_msg: devm_kfree(dev, ipmi->opal_msg); err_unregister: - opal_notifier_unregister(&ipmi->event_nb); + free_irq(ipmi->irq, ipmi); +err_dispose: + irq_dispose_mapping(ipmi->irq); err_free: devm_kfree(dev, ipmi); return rc; @@ -282,7 +285,9 @@ static int ipmi_powernv_remove(struct platform_device *pdev) struct ipmi_smi_powernv *smi = dev_get_drvdata(&pdev->dev); ipmi_unregister_smi(smi->intf); - opal_notifier_unregister(&smi->event_nb); + free_irq(smi->irq, smi); + irq_dispose_mapping(smi->irq); + return 0; } |