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usb: chipidea: move malloced regmap directly into struct hw_bank

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Without this patch a seperate chunk of memory is allocated for the regmap
array. As the regmap is always used it makes no sense to allocate a seperate
memory block for it, this patch moves the regmap array directly into the struct
hw_bank.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Marc Kleine-Budde 2014-01-06 10:10:38 +08:00 committed by Greg Kroah-Hartman
parent 2627cb0812
commit 21395a1aac
2 changed files with 30 additions and 41 deletions
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63
drivers/usb/chipidea/ci.h
View File

@ -25,6 +25,35 @@
#define CI_HDRC_PAGE_SIZE 4096ul /* page size for TD's */
#define ENDPT_MAX 32
/******************************************************************************
* REGISTERS
*****************************************************************************/
/* register indices */
enum ci_hw_regs {
CAP_CAPLENGTH,
CAP_HCCPARAMS,
CAP_DCCPARAMS,
CAP_TESTMODE,
CAP_LAST = CAP_TESTMODE,
OP_USBCMD,
OP_USBSTS,
OP_USBINTR,
OP_DEVICEADDR,
OP_ENDPTLISTADDR,
OP_PORTSC,
OP_DEVLC,
OP_OTGSC,
OP_USBMODE,
OP_ENDPTSETUPSTAT,
OP_ENDPTPRIME,
OP_ENDPTFLUSH,
OP_ENDPTSTAT,
OP_ENDPTCOMPLETE,
OP_ENDPTCTRL,
/* endptctrl1..15 follow */
OP_LAST = OP_ENDPTCTRL + ENDPT_MAX / 2,
};
/******************************************************************************
* STRUCTURES
*****************************************************************************/
@ -98,7 +127,7 @@ struct hw_bank {
void __iomem *cap;
void __iomem *op;
size_t size;
void __iomem **regmap;
void __iomem *regmap[OP_LAST + 1];
};
/**
@ -209,38 +238,6 @@ static inline void ci_role_stop(struct ci_hdrc *ci)
ci->roles[role]->stop(ci);
}
/******************************************************************************
* REGISTERS
*****************************************************************************/
/* register size */
#define REG_BITS (32)
/* register indices */
enum ci_hw_regs {
CAP_CAPLENGTH,
CAP_HCCPARAMS,
CAP_DCCPARAMS,
CAP_TESTMODE,
CAP_LAST = CAP_TESTMODE,
OP_USBCMD,
OP_USBSTS,
OP_USBINTR,
OP_DEVICEADDR,
OP_ENDPTLISTADDR,
OP_PORTSC,
OP_DEVLC,
OP_OTGSC,
OP_USBMODE,
OP_ENDPTSETUPSTAT,
OP_ENDPTPRIME,
OP_ENDPTFLUSH,
OP_ENDPTSTAT,
OP_ENDPTCOMPLETE,
OP_ENDPTCTRL,
/* endptctrl1..15 follow */
OP_LAST = OP_ENDPTCTRL + ENDPT_MAX / 2,
};
/**
* hw_read: reads from a hw register
* @reg: register index

8
drivers/usb/chipidea/core.c
View File

@ -123,13 +123,6 @@ static int hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm)
{
int i;
kfree(ci->hw_bank.regmap);
ci->hw_bank.regmap = kzalloc((OP_LAST + 1) * sizeof(void *),
GFP_KERNEL);
if (!ci->hw_bank.regmap)
return -ENOMEM;
for (i = 0; i < OP_ENDPTCTRL; i++)
ci->hw_bank.regmap[i] =
(i <= CAP_LAST ? ci->hw_bank.cap : ci->hw_bank.op) +
@ -681,7 +674,6 @@ static int ci_hdrc_remove(struct platform_device *pdev)
ci_role_destroy(ci);
ci_hdrc_enter_lpm(ci, true);
ci_usb_phy_destroy(ci);
kfree(ci->hw_bank.regmap);
return 0;
}