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wait_bit: use wait_for_bit_le32 and remove wait_for_bit

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wait_for_bit callers use the 32 bit LE version

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Álvaro Fernández Rojas
2018-01-23 17:14:55 +01:00
committed by Jagan Teki
parent 91fe458bbf
commit 48263504c8
33 changed files with 205 additions and 263 deletions
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54
include/wait_bit.h
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@ -15,60 +15,6 @@
#include <linux/errno.h>
#include <asm/io.h>
/**
* wait_for_bit() waits for bit set/cleared in register
*
* Function polls register waiting for specific bit(s) change
* (either 0->1 or 1->0). It can fail under two conditions:
* - Timeout
* - User interaction (CTRL-C)
* Function succeeds only if all bits of masked register are set/cleared
* (depending on set option).
*
* @param prefix Prefix added to timeout messagge (message visible only
* with debug enabled)
* @param reg Register that will be read (using readl())
* @param mask Bit(s) of register that must be active
* @param set Selects wait condition (bit set or clear)
* @param timeout_ms Timeout (in miliseconds)
* @param breakable Enables CTRL-C interruption
* @return 0 on success, -ETIMEDOUT or -EINTR on failure
*/
static inline int wait_for_bit(const char *prefix, const u32 *reg,
const u32 mask, const bool set,
const unsigned int timeout_ms,
const bool breakable)
{
u32 val;
unsigned long start = get_timer(0);
while (1) {
val = readl(reg);
if (!set)
val = ~val;
if ((val & mask) == mask)
return 0;
if (get_timer(start) > timeout_ms)
break;
if (breakable && ctrlc()) {
puts("Abort\n");
return -EINTR;
}
udelay(1);
WATCHDOG_RESET();
}
debug("%s: Timeout (reg=%p mask=%08x wait_set=%i)\n", prefix, reg, mask,
set);
return -ETIMEDOUT;
}
/**
* wait_for_bit_x() waits for bit set/cleared in register
*