From: Ionut Nicu <ioan.nicu.ext@nsn.com>
To: Peter Korsgaard <peter.korsgaard@barco.com>
Cc: Wolfram Sang <wsa@the-dreams.de>,
Alexander Sverdlin <alexander.sverdlin@nsn.com>,
linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] i2c-mux-gpio: use deferred probing with the device tree
Date: Tue, 08 Oct 2013 15:51:50 +0200 [thread overview]
Message-ID: <52540DF6.6050407@nsn.com> (raw)
If the i2c-parent bus driver is not loaded, returning
-EINVAL will force people to unload and then reload the
module again to get it working.
Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
---
drivers/i2c/muxes/i2c-mux-gpio.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index 5d4a99b..eb99f04 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -79,7 +79,7 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux,
adapter = of_find_i2c_adapter_by_node(adapter_np);
if (!adapter) {
dev_err(&pdev->dev, "Cannot find parent bus\n");
- return -ENODEV;
+ return -EPROBE_DEFER;
}
mux->data.parent = i2c_adapter_id(adapter);
put_device(&adapter->dev);
--
1.7.1
next reply other threads:[~2013-10-08 13:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-08 13:51 Ionut Nicu [this message]
2013-10-08 14:45 ` [PATCH 1/2] i2c-mux-gpio: use deferred probing with the device tree Peter Korsgaard
2013-10-08 21:36 ` Wolfram Sang
2013-10-09 6:14 ` Peter Korsgaard
2013-10-09 8:30 ` Ionut Nicu
2013-10-09 9:02 ` Wolfram Sang
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