Currently the DMTIMER errata flags are not being populated when using
device-tree. Add static platform data to populate errata flags when
using device-tree.
Please note that DMTIMER erratum i767 is applicable to OMAP3-5 devices
as well as AM335x devices.
Signed-off-by: Jon Hunter <jon-hunter@xxxxxx>
---
arch/arm/plat-omap/dmtimer.c | 45 ++++++++++++++++++++++++++++++++++--------
1 file changed, 37 insertions(+), 8 deletions(-)
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index b50d478..5d0af13 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -783,6 +783,8 @@ int omap_dm_timers_active(void)
}
EXPORT_SYMBOL_GPL(omap_dm_timers_active);
+static const struct of_device_id omap_timer_match[];
+
/**
* omap_dm_timer_probe - probe function called for every registered device
* @pdev: pointer to current timer platform device
@@ -796,7 +798,11 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
struct omap_dm_timer *timer;
struct resource *mem, *irq;
struct device *dev = &pdev->dev;
- struct dmtimer_platform_data *pdata = pdev->dev.platform_data;
+ const struct of_device_id *match;
+ const struct dmtimer_platform_data *pdata;
+
+ match = of_match_device(of_match_ptr(omap_timer_match), dev);
+ pdata = match ? match->data : dev->platform_data;
if (!pdata && !dev->of_node) {
dev_err(dev, "%s: no platform data.\n", __func__);
@@ -836,12 +842,14 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
timer->capability |= OMAP_TIMER_SECURE;
} else {
timer->id = pdev->id;
- timer->errata = pdata->timer_errata;
timer->capability = pdata->timer_capability;
timer->reserved = omap_dm_timer_reserved_systimer(timer->id);
timer->get_context_loss_count = pdata->get_context_loss_count;
}
+ if (pdata)
+ timer->errata = pdata->timer_errata;
+
timer->irq = irq->start;
timer->pdev = pdev;
@@ -894,13 +902,34 @@ static int omap_dm_timer_remove(struct platform_device *pdev)
return ret;
}
+static const struct dmtimer_platform_data omap3plus_pdata = {
+ .timer_errata = OMAP_TIMER_ERRATA_I103_I767,
+};
+
static const struct of_device_id omap_timer_match[] = {
- { .compatible = "ti,omap2420-timer", },
- { .compatible = "ti,omap3430-timer", },
- { .compatible = "ti,omap4430-timer", },
- { .compatible = "ti,omap5430-timer", },
- { .compatible = "ti,am335x-timer", },
- { .compatible = "ti,am335x-timer-1ms", },
+ {
+ .compatible = "ti,omap2420-timer",
+ },
+ {
+ .compatible = "ti,omap3430-timer",
+ .data = &omap3plus_pdata,
+ },
+ {
+ .compatible = "ti,omap4430-timer",
+ .data = &omap3plus_pdata,
+ },
+ {
+ .compatible = "ti,omap5430-timer",
+ .data = &omap3plus_pdata,
+ },
+ {
+ .compatible = "ti,am335x-timer",
+ .data = &omap3plus_pdata,
+ },
+ {
+ .compatible = "ti,am335x-timer-1ms",
+ .data = &omap3plus_pdata,
+ },
{},
};
MODULE_DEVICE_TABLE(of, omap_timer_match);
--
1.7.10.4
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