From: Alexandre Bailon <abailon@baylibre.com>
To: khilman@baylibre.com, robh+dt@kernel.org, b-liu@ti.com
Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
Petr Kulhavy <petr@barix.com>,
Alexandre Bailon <abailon@baylibre.com>
Subject: [PATCH v2 2/4] usb: musb: core: added helper function for parsing DT
Date: Wed, 26 Oct 2016 17:03:55 +0200 [thread overview]
Message-ID: <1477494237-22831-3-git-send-email-abailon@baylibre.com> (raw)
In-Reply-To: <1477494237-22831-1-git-send-email-abailon@baylibre.com>
From: Petr Kulhavy <petr@barix.com>
This adds the function musb_get_mode() to get the DT property "dr_mode"
Signed-off-by: Petr Kulhavy <petr@barix.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
drivers/usb/musb/musb_core.c | 19 +++++++++++++++++++
drivers/usb/musb/musb_core.h | 5 +++++
2 files changed, 24 insertions(+)
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 27dadc0..bba07e7 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -100,6 +100,7 @@
#include <linux/io.h>
#include <linux/dma-mapping.h>
#include <linux/usb.h>
+#include <linux/usb/of.h>
#include "musb_core.h"
#include "musb_trace.h"
@@ -130,6 +131,24 @@ static inline struct musb *dev_to_musb(struct device *dev)
return dev_get_drvdata(dev);
}
+enum musb_mode musb_get_mode(struct device *dev)
+{
+ enum usb_dr_mode mode;
+
+ mode = usb_get_dr_mode(dev);
+ switch (mode) {
+ case USB_DR_MODE_HOST:
+ return MUSB_HOST;
+ case USB_DR_MODE_PERIPHERAL:
+ return MUSB_PERIPHERAL;
+ case USB_DR_MODE_OTG:
+ case USB_DR_MODE_UNKNOWN:
+ default:
+ return MUSB_OTG;
+ }
+}
+EXPORT_SYMBOL_GPL(musb_get_mode);
+
/*-------------------------------------------------------------------------*/
#ifndef CONFIG_BLACKFIN
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 2cb88a49..a406468 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -617,4 +617,9 @@ static inline void musb_platform_post_root_reset_end(struct musb *musb)
musb->ops->post_root_reset_end(musb);
}
+/* gets the "dr_mode" property from DT and converts it into musb_mode
+ * if the property is not found or not recognized returns MUSB_OTG
+ */
+extern enum musb_mode musb_get_mode(struct device *dev);
+
#endif /* __MUSB_CORE_H__ */
--
2.7.3
next prev parent reply other threads:[~2016-10-26 15:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-26 15:03 [PATCH v2 0/4] Add DT support for DA8xx Alexandre Bailon
2016-10-26 15:03 ` [PATCH v2 1/4] dt/bindings: Add binding for the DA8xx MUSB driver Alexandre Bailon
2016-10-26 15:03 ` Alexandre Bailon [this message]
2016-10-27 3:27 ` [PATCH v2 2/4] usb: musb: core: added helper function for parsing DT David Lechner
2016-10-26 15:03 ` [PATCH v2 3/4] usb: musb: da8xx: Add DT support for the DA8xx driver Alexandre Bailon
2016-10-27 3:26 ` David Lechner
2016-10-26 15:03 ` [PATCH v2 4/4] ARM: dts: da850: Add the usb otg device node Alexandre Bailon
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