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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-29 12:30:13 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-29 12:30:13 -0700 |
| commit | b78b6b3a9af239549ea863e085223d1d4f65a608 (patch) | |
| tree | fb55713cba98edd270df2c54a7590a2be7e1be10 /drivers/video/backlight | |
| parent | 7f4708abf16ae48e58a9190898253bc7c94a30c1 (diff) | |
| parent | 5ae90d8e467e625e447000cb4335c4db973b1095 (diff) | |
| download | linux-b78b6b3a9af239549ea863e085223d1d4f65a608.tar.bz2 | |
Merge 3.11-rc3 into driver-core-next
We want these fixes in this branch.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/video/backlight')
| -rw-r--r-- | drivers/video/backlight/max8925_bl.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c index 5ca11b066b7e..886e797f75f9 100644 --- a/drivers/video/backlight/max8925_bl.c +++ b/drivers/video/backlight/max8925_bl.c @@ -101,33 +101,37 @@ static const struct backlight_ops max8925_backlight_ops = { .get_brightness = max8925_backlight_get_brightness, }; -#ifdef CONFIG_OF -static int max8925_backlight_dt_init(struct platform_device *pdev, - struct max8925_backlight_pdata *pdata) +static void max8925_backlight_dt_init(struct platform_device *pdev) { struct device_node *nproot = pdev->dev.parent->of_node, *np; - int dual_string; + struct max8925_backlight_pdata *pdata; + u32 val; + + if (!nproot || !IS_ENABLED(CONFIG_OF)) + return; + + pdata = devm_kzalloc(&pdev->dev, + sizeof(struct max8925_backlight_pdata), + GFP_KERNEL); + if (!pdata) + return; - if (!nproot) - return -ENODEV; np = of_find_node_by_name(nproot, "backlight"); if (!np) { dev_err(&pdev->dev, "failed to find backlight node\n"); - return -ENODEV; + return; } - of_property_read_u32(np, "maxim,max8925-dual-string", &dual_string); - pdata->dual_string = dual_string; - return 0; + if (!of_property_read_u32(np, "maxim,max8925-dual-string", &val)) + pdata->dual_string = val; + + pdev->dev.platform_data = pdata; } -#else -#define max8925_backlight_dt_init(x, y) (-1) -#endif static int max8925_backlight_probe(struct platform_device *pdev) { struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); - struct max8925_backlight_pdata *pdata = pdev->dev.platform_data; + struct max8925_backlight_pdata *pdata; struct max8925_backlight_data *data; struct backlight_device *bl; struct backlight_properties props; @@ -170,13 +174,10 @@ static int max8925_backlight_probe(struct platform_device *pdev) platform_set_drvdata(pdev, bl); value = 0; - if (pdev->dev.parent->of_node && !pdata) { - pdata = devm_kzalloc(&pdev->dev, - sizeof(struct max8925_backlight_pdata), - GFP_KERNEL); - max8925_backlight_dt_init(pdev, pdata); - } + if (!pdev->dev.platform_data) + max8925_backlight_dt_init(pdev); + pdata = pdev->dev.platform_data; if (pdata) { if (pdata->lxw_scl) value |= (1 << 7); |