[PATCH v2 12/22] drm/tegra: Probe dpaux devices on demand

From: Tomeu Vizoso
Date: Tue Jul 28 2015 - 09:21:08 EST


When looking up a dpaux device through its firmware node, probe it if it
hasn't already.

The goal is to reduce deferred probes to a minimum, as it makes it very
cumbersome to find out why a device failed to probe, and can introduce
very big delays in when a critical device is probed.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
---

Changes in v2: None

drivers/gpu/drm/tegra/dpaux.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c
index 07b26972f487..9a793158a571 100644
--- a/drivers/gpu/drm/tegra/dpaux.c
+++ b/drivers/gpu/drm/tegra/dpaux.c
@@ -394,6 +394,8 @@ struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np)
{
struct tegra_dpaux *dpaux;

+ fwnode_ensure_device(&np->fwnode);
+
mutex_lock(&dpaux_lock);

list_for_each_entry(dpaux, &dpaux_list, list)
--
2.4.3

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