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staging:ti dspbridge: remove unnecessary volatile variables

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Remove unnecessary volatile variables; use accessor
functions __raw_readl/__raw_writel instead when applicable.

Signed-off-by: Ernesto Ramos <ernesto@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Ernesto Ramos 2010-07-28 09:40:51 -05:00 committed by Greg Kroah-Hartman
parent 74ea8ff93b
commit b3c8aef0a2
3 changed files with 10 additions and 9 deletions
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8
drivers/staging/tidspbridge/core/tiomap3430.c
View file

@ -404,7 +404,7 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt,
pr_err("%s: Illegal SM base\n", __func__);
status = -EPERM;
} else
*((volatile u32 *)dw_sync_addr) = 0xffffffff;
__raw_writel(0xffffffff, dw_sync_addr);
if (DSP_SUCCEEDED(status)) {
resources = dev_context->resources;
@ -584,7 +584,7 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt,
dev_dbg(bridge, "Waiting for Sync @ 0x%x\n", dw_sync_addr);
dev_dbg(bridge, "DSP c_int00 Address = 0x%x\n", dsp_addr);
if (dsp_debug)
while (*((volatile u16 *)dw_sync_addr))
while (__raw_readw(dw_sync_addr))
;;
/* Wait for DSP to clear word in shared memory */
@ -602,7 +602,7 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt,
/* Write the synchronization bit to indicate the
* completion of OPP table update to DSP
*/
*((volatile u32 *)dw_sync_addr) = 0XCAFECAFE;
__raw_writel(0XCAFECAFE, dw_sync_addr);
/* update board state */
dev_context->dw_brd_state = BRD_RUNNING;
@ -1852,7 +1852,7 @@ bool wait_for_start(struct bridge_dev_context *dev_context, u32 dw_sync_addr)
u16 timeout = TIHELEN_ACKTIMEOUT;
/* Wait for response from board */
while (*((volatile u16 *)dw_sync_addr) && --timeout)
while (__raw_readw(dw_sync_addr) && --timeout)
udelay(10);
/* If timed out: return false */

4
drivers/staging/tidspbridge/dynload/tramp.c
View file

@ -86,8 +86,8 @@ static u8 priv_h2a(u8 value)
static void priv_tramp_sym_gen_name(u32 value, char *dst)
{
u32 i;
volatile char *prefix = TRAMP_SYM_PREFIX;
volatile char *dst_local = dst;
char *prefix = TRAMP_SYM_PREFIX;
char *dst_local = dst;
u8 tmp;
/* Clear out the destination, including the ending NULL */

7
drivers/staging/tidspbridge/pmgr/cmm.c
View file

@ -1008,6 +1008,7 @@ void *cmm_xlator_alloc_buf(struct cmm_xlatorobject *xlator, void *va_buf,
{
struct cmm_xlator *xlator_obj = (struct cmm_xlator *)xlator;
void *pbuf = NULL;
void *tmp_va_buff;
struct cmm_attrs attrs;
DBC_REQUIRE(refs > 0);
@ -1019,16 +1020,16 @@ void *cmm_xlator_alloc_buf(struct cmm_xlatorobject *xlator, void *va_buf,
if (xlator_obj) {
attrs.ul_seg_id = xlator_obj->ul_seg_id;
*(volatile u32 *)va_buf = 0;
__raw_writel(0, va_buf);
/* Alloc SM */
pbuf =
cmm_calloc_buf(xlator_obj->hcmm_mgr, pa_size, &attrs, NULL);
if (pbuf) {
/* convert to translator(node/strm) process Virtual
* address */
*(volatile u32 **)va_buf =
(u32 *) cmm_xlator_translate(xlator,
tmp_va_buff = cmm_xlator_translate(xlator,
pbuf, CMM_PA2VA);
__raw_writel((u32)tmp_va_buff, va_buf);
}
}
return pbuf;