diff mbox

[v3,08/14] Input: twl4030-vibra: Support for DT booted kernel

Message ID 1346933541-21547-9-git-send-email-peter.ujfalusi@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Peter Ujfalusi Sept. 6, 2012, 12:12 p.m. UTC
Add support when the kernel has been booted with DT blob. In this case the
pdata is NULL, we need to reach up to the core node and check if the codec
part has been enabled to determine if we need to coexist with the codec or
not.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
 drivers/input/misc/twl4030-vibra.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

Comments

Dmitry Torokhov Sept. 6, 2012, 4:19 p.m. UTC | #1
Hi Peter,

On Thu, Sep 06, 2012 at 03:12:15PM +0300, Peter Ujfalusi wrote:
> Add support when the kernel has been booted with DT blob. In this case the
> pdata is NULL, we need to reach up to the core node and check if the codec
> part has been enabled to determine if we need to coexist with the codec or
> not.
> 
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
> ---
>  drivers/input/misc/twl4030-vibra.c | 20 ++++++++++++++++++--
>  1 file changed, 18 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
> index fc0ed9b..15620f8 100644
> --- a/drivers/input/misc/twl4030-vibra.c
> +++ b/drivers/input/misc/twl4030-vibra.c
> @@ -26,6 +26,7 @@
>  #include <linux/module.h>
>  #include <linux/jiffies.h>
>  #include <linux/platform_device.h>
> +#include <linux/of.h>
>  #include <linux/workqueue.h>
>  #include <linux/i2c/twl.h>
>  #include <linux/mfd/twl4030-audio.h>
> @@ -194,13 +195,28 @@ static int twl4030_vibra_resume(struct device *dev)
>  static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops,
>  			 twl4030_vibra_suspend, twl4030_vibra_resume);
>  
> +static bool twl4030_vibra_check_coexist(struct twl4030_vibra_data *pdata,
> +			      struct device_node *node)
> +{
> +	if (pdata && pdata->coexist)
> +		return true;
> +
> +#ifdef CONFIG_OF
> +	if (of_find_node_by_name(node, "codec"))
> +		return true;
> +#endif

In patch 6 you added a stub for of_find_node_by_name(), so do you really
need this #ifdef?

Otherwise it looks good.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Thanks.
Peter Ujfalusi Sept. 7, 2012, 1:35 p.m. UTC | #2
Hi Dmitry,

On 09/06/2012 07:19 PM, Dmitry Torokhov wrote:
> In patch 6 you added a stub for of_find_node_by_name(), so do you really
> need this #ifdef?

True. I'll resend the series since I left the #ifdef also in other patch.

> Otherwise it looks good.
> 
> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Thank you,
Péter
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diff mbox

Patch

diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
index fc0ed9b..15620f8 100644
--- a/drivers/input/misc/twl4030-vibra.c
+++ b/drivers/input/misc/twl4030-vibra.c
@@ -26,6 +26,7 @@ 
 #include <linux/module.h>
 #include <linux/jiffies.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 #include <linux/workqueue.h>
 #include <linux/i2c/twl.h>
 #include <linux/mfd/twl4030-audio.h>
@@ -194,13 +195,28 @@  static int twl4030_vibra_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops,
 			 twl4030_vibra_suspend, twl4030_vibra_resume);
 
+static bool twl4030_vibra_check_coexist(struct twl4030_vibra_data *pdata,
+			      struct device_node *node)
+{
+	if (pdata && pdata->coexist)
+		return true;
+
+#ifdef CONFIG_OF
+	if (of_find_node_by_name(node, "codec"))
+		return true;
+#endif
+
+	return false;
+}
+
 static int __devinit twl4030_vibra_probe(struct platform_device *pdev)
 {
 	struct twl4030_vibra_data *pdata = pdev->dev.platform_data;
+	struct device_node *twl4030_core_node = pdev->dev.parent->of_node;
 	struct vibra_info *info;
 	int ret;
 
-	if (!pdata) {
+	if (!pdata && !twl4030_core_node) {
 		dev_dbg(&pdev->dev, "platform_data not available\n");
 		return -EINVAL;
 	}
@@ -210,7 +226,7 @@  static int __devinit twl4030_vibra_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	info->dev = &pdev->dev;
-	info->coexist = pdata->coexist;
+	info->coexist = twl4030_vibra_check_coexist(pdata, twl4030_core_node);
 	INIT_WORK(&info->play_work, vibra_play_work);
 
 	info->input_dev = input_allocate_device();