Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1234894

[PATCH v7 13/20] usb: phy: Probe phy devices on demand

From Tomeu Vizoso <tomeu.vizoso@collabora.com>
Newsgroups linux.kernel
Subject [PATCH v7 13/20] usb: phy: Probe phy devices on demand
Date 2015-09-29 11:20 +0200
Message-ID <qdZeP-2b3-35@gated-at.bofh.it> (permalink)
References <qdZeN-2b3-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


When looking up a phy 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 <tomeu.vizoso@collabora.com>
---


 drivers/usb/phy/phy.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index 98f75d2842b7..fb0b650bb494 100644
--- a/drivers/usb/phy/phy.c
+++ b/drivers/usb/phy/phy.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <linux/usb/phy.h>
 
@@ -196,6 +197,8 @@ struct  usb_phy *devm_usb_get_phy_by_node(struct device *dev,
 		goto err0;
 	}
 
+	of_device_probe(node);
+
 	spin_lock_irqsave(&phy_lock, flags);
 
 	phy = __of_usb_find_phy(node);
-- 
2.4.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH v7 0/20] On-demand device probing Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 20/20] of/platform: Defer probes of registered devices Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 13/20] usb: phy: Probe phy devices on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 09/20] drm/tegra: Probe dpaux devices on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 15/20] pinctrl: Probe pinctrl devices on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 06/20] pinctrl: Probe pinctrl devices on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 03/20] of/platform: Point to struct device from device node Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 10/20] i2c: core: Probe i2c adapters and devices on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 17/20] dma: of: Probe DMA controllers on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 11/20] pwm: Probe PWM chip devices on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 07/20] regulator: core: Probe regulators on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 12/20] backlight: Probe backlight devices on demand Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200
  [PATCH v7 04/20] of: add function to allow probing a device from a OF node Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 11:20 +0200

csiph-web