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| author | Dave Airlie <airlied@redhat.com> | 2013-10-22 07:32:40 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-10-22 07:32:40 +0100 |
| commit | 3bcec5f076688c58436a6c354f5b94eef16469da (patch) | |
| tree | 6e50e1c03d52bffbd17b16dd6b153a428f0b9e7c /drivers/i2c/muxes/i2c-mux-gpio.c | |
| parent | bc5bd37ce48c66e9192ad2e7231e9678880f6f8e (diff) | |
| parent | 828c79087cec61eaf4c76bb32c222fbe35ac3930 (diff) | |
| download | linux-3bcec5f076688c58436a6c354f5b94eef16469da.tar.bz2 | |
Merge tag 'drm-intel-fixes-2013-10-21' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Just an lvds clock gating fix and a pte clearing hack for hsw to avoid
memory corruption when hibernating - something doesn't seem to switch off
properly, we're still investigating.
* tag 'drm-intel-fixes-2013-10-21' of git://people.freedesktop.org/~danvet/drm-intel: (96 commits)
drm/i915: Disable GGTT PTEs on GEN6+ suspend
drm/i915: Make PTE valid encoding optional
drm/i915: disable LVDS clock gating on CPT v2
Diffstat (limited to 'drivers/i2c/muxes/i2c-mux-gpio.c')
| -rw-r--r-- | drivers/i2c/muxes/i2c-mux-gpio.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index 5d4a99ba743e..a764da777f08 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -66,7 +66,7 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, struct device_node *adapter_np, *child; struct i2c_adapter *adapter; unsigned *values, *gpios; - int i = 0; + int i = 0, ret; if (!np) return -ENODEV; @@ -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); @@ -116,8 +116,12 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, return -ENOMEM; } - for (i = 0; i < mux->data.n_gpios; i++) - gpios[i] = of_get_named_gpio(np, "mux-gpios", i); + for (i = 0; i < mux->data.n_gpios; i++) { + ret = of_get_named_gpio(np, "mux-gpios", i); + if (ret < 0) + return ret; + gpios[i] = ret; + } mux->data.gpios = gpios; @@ -177,7 +181,7 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) if (!parent) { dev_err(&pdev->dev, "Parent adapter (%d) not found\n", mux->data.parent); - return -ENODEV; + return -EPROBE_DEFER; } mux->parent = parent; |