linux-kernel - [PATCH 1/2] Add tusb_revision to struct musb to store the revision.

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Date:	Fri, 16 May 2014 18:19:54 +0400 (MSK)
From:	"Matwey V. Kornilov" <matwey@....msu.ru>
To:	balbi@...com
cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] Add tusb_revision to struct musb to store the
 revision.

>From 0bd8c14855eeb049f49685f36386750a999078a3 Mon Sep 17 00:00:00 2001
From: "Matwey V. Kornilov" <matwey@....msu.ru>
Date: Fri, 9 May 2014 15:52:00 +0400
Subject: [PATCH 1/2] Add tusb_revision to struct musb to store the revision.

Add field to store tusb6010 revision value. Read the revision at
the startup and store to the variable.

Signed-off-by: Matwey V. Kornilov <matwey@....msu.ru>
---
  drivers/usb/musb/musb_core.h | 1 +
  drivers/usb/musb/tusb6010.c  | 1 +
  2 files changed, 2 insertions(+)

diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 7083e82..d7dea2f 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -337,6 +337,7 @@ struct musb {
  	dma_addr_t		async;
  	dma_addr_t		sync;
  	void __iomem		*sync_va;
+	u8			tusb_revision;
  #endif

  	/* passed down from chip/board specific irq handlers */
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 4e9fb1d..81fa8fd 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -1011,6 +1011,7 @@ static int tusb_musb_start(struct musb *musb)
  		goto err;
  	}

+	musb->tusb_revision = tusb_get_revision(musb);
  	ret = tusb_print_revision(musb);
  	if (ret < 2) {
  		printk(KERN_ERR "tusb: Unsupported TUSB6010 revision %i\n",
-- 
1.8.1.4

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