Re: [PATCH] max8925_power: Use "IS_ENABLED(CONFIG_OF)" for DT code.

From: Tomasz Figa
Date: Sun Jan 26 2014 - 08:23:04 EST


Hi Manish,

On 26.01.2014 08:15, Manish Badarkhe wrote:
Instead of "#if define CONFIG_OF" use "IS_ENABLED(CONFIG_OF)"
option for DT code to avoid if-deffery in code.

Signed-off-by: Manish Badarkhe <badarkhe.manish@xxxxxxxxx>
---
:100644 100644 b4513f2... d353fbc... M drivers/power/max8925_power.c
drivers/power/max8925_power.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c
index b4513f2..d353fbc 100644
--- a/drivers/power/max8925_power.c
+++ b/drivers/power/max8925_power.c
@@ -427,7 +427,6 @@ static int max8925_deinit_charger(struct max8925_power_info *info)
return 0;
}

-#ifdef CONFIG_OF
static struct max8925_power_pdata *
max8925_power_dt_init(struct platform_device *pdev)
{
@@ -468,13 +467,6 @@ max8925_power_dt_init(struct platform_device *pdev)

return pdata;
}
-#else
-static struct max8925_power_pdata *
-max8925_power_dt_init(struct platform_device *pdev)
-{
- return pdev->dev.platform_data;
-}
-#endif

static int max8925_power_probe(struct platform_device *pdev)
{
@@ -483,7 +475,11 @@ static int max8925_power_probe(struct platform_device *pdev)
struct max8925_power_info *info;
int ret;

- pdata = max8925_power_dt_init(pdev);
+ if (IS_ENABLED(CONFIG_OF))
+ pdata = max8925_power_dt_init(pdev);
+ else
+ pdata = pdev->dev.platform_data;
+

This does not look much better than before this patch. Instead of "if-deffery" outside function bodies you are adding "iffery" (if there is such a word) inside a function.

What about adding

if (!IS_ENABLED(CONFIG_OF))
return pdev->dev.platform_data;

on top of max8925_power_dt_init() instead or maybe also renaming this function to max8925_get_pdata()?

Best regards,
Tomasz
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