[PATCH v6 10/22] drm/tegra: Probe dpaux devices on demand
From: Tomeu Vizoso <hidden>
Date: 2015-09-21 14:09:44
Also in:
linux-acpi, linux-devicetree, lkml
Subsystem:
drm drivers, drm drivers for nvidia tegra, the rest · Maintainers:
David Airlie, Simona Vetter, Thierry Reding, Mikko Perttunen, Linus Torvalds
When looking up a dpaux device through its OF 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 <redacted> --- drivers/gpu/drm/tegra/dpaux.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c
index 6aecb6647313..40bdc2a98548 100644
--- a/drivers/gpu/drm/tegra/dpaux.c
+++ b/drivers/gpu/drm/tegra/dpaux.c@@ -12,6 +12,7 @@ #include <linux/interrupt.h> #include <linux/io.h> #include <linux/of_gpio.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/reset.h> #include <linux/regulator/consumer.h>
@@ -440,6 +441,8 @@ struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np) { struct tegra_dpaux *dpaux; + of_device_probe(np); + mutex_lock(&dpaux_lock); list_for_each_entry(dpaux, &dpaux_list, list)
--
2.4.3