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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2012-09-10 13:46:26 +0300
committerSamuel Ortiz <sameo@linux.intel.com>2012-09-18 15:45:13 +0200
commit64b9e4d803b154a78a2e76bd466bb32ad6f383de (patch)
treec5d3fa51cc26786da3ca9a1ccf547cce5132c1c2 /drivers/input
parent019a7e6b7b312b17cd74b45d09d4ec17486c4088 (diff)
downloadlinux-64b9e4d803b154a78a2e76bd466bb32ad6f383de.tar.bz2
input: twl4030-vibra: Support for DT booted kernel
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> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/misc/twl4030-vibra.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
index fc0ed9b43424..2194a3c7236a 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 +195,26 @@ 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;
+
+ if (of_find_node_by_name(node, "codec"))
+ return true;
+
+ 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 +224,7 @@ 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();