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char: xilinx_hwicap: Fix warnings in the driver

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This patch fixes the below warning
        --> Use #include <linux/io.h> instead of <asm/io.h>
        --> Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
        --> please, no space before tabs
        --> Block comments use a trailing */ on a separate line
        --> Possible unnecessary 'out of memory' message
        --> Block comments use * on subsequent lines
        --> Block comments use a trailing */ on a separate line
        --> braces {} are not necessary for any arm of this statement
        --> DT compatible string "xlnx,opb-hwicap-1.00.b"
	    appears un-documented
        --> DT compatible string "xlnx,xps-hwicap-1.00.a"
            appears un-documented

Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nava kishore Manne 2017-07-28 15:17:26 +02:00 committed by Greg Kroah-Hartman
parent ef2b56df5a
commit 5cb95fae7a
3 changed files with 23 additions and 20 deletions
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2
Documentation/devicetree/bindings/xilinx.txt
View File

@ -281,6 +281,8 @@
capabilities of the underlying ICAP hardware
differ between different families. May be
'virtex2p', 'virtex4', or 'virtex5'.
- compatible : should contain "xlnx,xps-hwicap-1.00.a" or
"xlnx,opb-hwicap-1.00.b".
vi) Xilinx Uart 16550

35
drivers/char/xilinx_hwicap/xilinx_hwicap.c
View File

@ -86,8 +86,7 @@
#include <linux/cdev.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <asm/io.h>
#include <linux/io.h>
#include <linux/uaccess.h>
#ifdef CONFIG_OF
@ -253,8 +252,8 @@ static int hwicap_command_desync(struct hwicap_drvdata *drvdata)
* hwicap_get_configuration_register - Query a configuration register.
* @drvdata: a pointer to the drvdata.
* @reg: a constant which represents the configuration
* register value to be returned.
* Examples: XHI_IDCODE, XHI_FLR.
* register value to be returned.
* Examples: XHI_IDCODE, XHI_FLR.
* @reg_data: returns the value of the register.
*
* Returns: '0' on success and failure value on error
@ -324,7 +323,8 @@ static int hwicap_initialize_hwicap(struct hwicap_drvdata *drvdata)
dev_dbg(drvdata->dev, "initializing\n");
/* Abort any current transaction, to make sure we have the
* ICAP in a good state. */
* ICAP in a good state.
*/
dev_dbg(drvdata->dev, "Reset...\n");
drvdata->config->reset(drvdata);
@ -636,7 +636,6 @@ static int hwicap_setup(struct device *dev, int id,
drvdata = kzalloc(sizeof(struct hwicap_drvdata), GFP_KERNEL);
if (!drvdata) {
dev_err(dev, "Couldn't allocate device private record\n");
retval = -ENOMEM;
goto failed0;
}
@ -763,20 +762,20 @@ static int hwicap_of_probe(struct platform_device *op,
id = of_get_property(op->dev.of_node, "port-number", NULL);
/* It's most likely that we're using V4, if the family is not
specified */
* specified
*/
regs = &v4_config_registers;
family = of_get_property(op->dev.of_node, "xlnx,family", NULL);
if (family) {
if (!strcmp(family, "virtex2p")) {
if (!strcmp(family, "virtex2p"))
regs = &v2_config_registers;
} else if (!strcmp(family, "virtex4")) {
else if (!strcmp(family, "virtex4"))
regs = &v4_config_registers;
} else if (!strcmp(family, "virtex5")) {
else if (!strcmp(family, "virtex5"))
regs = &v5_config_registers;
} else if (!strcmp(family, "virtex6")) {
else if (!strcmp(family, "virtex6"))
regs = &v6_config_registers;
}
}
return hwicap_setup(&op->dev, id ? *id : -1, &res, config,
regs);
@ -806,20 +805,20 @@ static int hwicap_drv_probe(struct platform_device *pdev)
return -ENODEV;
/* It's most likely that we're using V4, if the family is not
specified */
* specified
*/
regs = &v4_config_registers;
family = pdev->dev.platform_data;
if (family) {
if (!strcmp(family, "virtex2p")) {
if (!strcmp(family, "virtex2p"))
regs = &v2_config_registers;
} else if (!strcmp(family, "virtex4")) {
else if (!strcmp(family, "virtex4"))
regs = &v4_config_registers;
} else if (!strcmp(family, "virtex5")) {
else if (!strcmp(family, "virtex5"))
regs = &v5_config_registers;
} else if (!strcmp(family, "virtex6")) {
else if (!strcmp(family, "virtex6"))
regs = &v6_config_registers;
}
}
return hwicap_setup(&pdev->dev, pdev->id, res,

6
drivers/char/xilinx_hwicap/xilinx_hwicap.h
View File

@ -62,11 +62,13 @@ struct hwicap_drvdata {
struct hwicap_driver_config {
/* Read configuration data given by size into the data buffer.
Return 0 if successful. */
* Return 0 if successful.
*/
int (*get_configuration)(struct hwicap_drvdata *drvdata, u32 *data,
u32 size);
/* Write configuration data given by size from the data buffer.
Return 0 if successful. */
* Return 0 if successful.
*/
int (*set_configuration)(struct hwicap_drvdata *drvdata, u32 *data,
u32 size);
/* Get the status register, bit pattern given by: