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usb: dwc3: dwc3-omap: Do not read DMA status

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Commit af566a0be6 ("usb: dwc3: omap: get rid of dma_status") rendered
reading DMA status from the H/W even more redundant.  The variable hasn't
been read/used since 2016.  Remove the set but unused variable and the call
which populates it.

Fixes the following W=1 warning:

 drivers/usb/dwc3/dwc3-omap.c: In function ‘dwc3_omap_probe’:
 drivers/usb/dwc3/dwc3-omap.c:460:8: warning: variable ‘reg’ set but not used [-Wunused-but-set-variable]
 460 | u32 reg;
 | ^~~

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200702144625.2533530-9-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lee Jones 2020-07-02 15:46:03 +01:00 committed by Greg Kroah-Hartman
parent 246d7a1103
commit 3c373454a9
1 changed files with 1 additions and 6 deletions
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7
drivers/usb/dwc3/dwc3-omap.c
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@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
/**
/*
* dwc3-omap.c - OMAP Specific Glue layer
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
@ -457,8 +457,6 @@ static int dwc3_omap_probe(struct platform_device *pdev)
int ret;
int irq;
u32 reg;
void __iomem *base;
if (!node) {
@ -503,9 +501,6 @@ static int dwc3_omap_probe(struct platform_device *pdev)
dwc3_omap_map_offset(omap);
dwc3_omap_set_utmi_mode(omap);
/* check the DMA Status */
reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
ret = dwc3_omap_extcon_register(omap);
if (ret < 0)
goto err1;