[PATCH] platform/chrome: cros_ec_lightbar - use name instead of ID to hide lightbar attributes

[Clinton Sprain <clintonsprain@gmail.com>]

Lightbar attributes are hidden if the ID of the device is not 0
(the assumption being that 0 = cros_ec = might have a lightbar,
1 = cros_pd = hide); however, sometimes these devices get IDs 1
and 2 (or something else) instead of IDs 0 and 1. This prevents
the lightbar attributes from appearing when they should.

Proposed change is to instead check whether the name assigned to
the device is CROS_EC_DEV_NAME (true for cros_ec, false for cros_pd).

Signed-off-by: Clinton Sprain <clintonsprain@gmail.com>
---
 drivers/platform/chrome/cros_ec_lightbar.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/drivers/platform/chrome/cros_ec_lightbar.c
index ff76405..b6356b3 100644
--- a/drivers/platform/chrome/cros_ec_lightbar.c
+++ b/drivers/platform/chrome/cros_ec_lightbar.c
@@ -414,7 +414,12 @@ static umode_t cros_ec_lightbar_attrs_are_visible(struct kobject *kobj,
 					      struct cros_ec_dev, class_dev);
 	struct platform_device *pdev = container_of(ec->dev,
 						   struct platform_device, dev);
-	if (pdev->id != 0)
+	struct cros_ec_platform *pdata = pdev->dev.platform_data;
+	int is_cros_ec;
+
+	is_cros_ec = strcmp(pdata->ec_name, CROS_EC_DEV_NAME);
+
+	if (is_cros_ec != 0)
 		return 0;
 
 	/* Only instantiate this stuff if the EC has a lightbar */
-- 
2.5.0