提交 d424aa87 编写于 作者: J Jim Cromie 提交者: Linus Torvalds

[PATCH] chardev: GPIO for SCx200 & PC-8736x: put gpio_dump on a diet

Shrink scx200_gpio_dump() to a single printk with ternary ops.  The function
is still ifdef'd out, this is corrected in next patch, when it is actually
used.

The patch 'inadvertently' changed loglevel from DEBUG to INFO.  This is Good,
because in next patch, its wired to a 'command' which the user can invoke when
they want.  When they do so, its because they want INFO to support their
developement effort, and we want to give it to them without compiling a DEBUG
version of the driver.
Signed-off-by: NJim Cromie <jim.cromie@gmail.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 55b8c045
......@@ -108,34 +108,17 @@ u32 scx200_gpio_configure(unsigned index, u32 mask, u32 bits)
#if 0
void scx200_gpio_dump(unsigned index)
{
u32 config = scx200_gpio_configure(index, ~0, 0);
printk(KERN_DEBUG "GPIO%02u: 0x%08lx", index, (unsigned long)config);
if (config & 1)
printk(" OE"); /* output enabled */
else
printk(" TS"); /* tristate */
if (config & 2)
printk(" PP"); /* push pull */
else
printk(" OD"); /* open drain */
if (config & 4)
printk(" PUE"); /* pull up enabled */
else
printk(" PUD"); /* pull up disabled */
if (config & 8)
printk(" LOCKED"); /* locked */
if (config & 16)
printk(" LEVEL"); /* level input */
else
printk(" EDGE"); /* edge input */
if (config & 32)
printk(" HI"); /* trigger on rising edge */
else
printk(" LO"); /* trigger on falling edge */
if (config & 64)
printk(" DEBOUNCE"); /* debounce */
printk("\n");
u32 config = scx200_gpio_configure(index, ~0, 0);
printk(KERN_INFO NAME ": GPIO-%02u: 0x%08lx %s %s %s %s %s %s %s\n",
index, (unsigned long) config,
(config & 1) ? "OE" : "TS", /* output enabled / tristate */
(config & 2) ? "PP" : "OD", /* push pull / open drain */
(config & 4) ? "PUE" : "PUD", /* pull up enabled/disabled */
(config & 8) ? "LOCKED" : "", /* locked / unlocked */
(config & 16) ? "LEVEL" : "EDGE", /* level/edge input */
(config & 32) ? "HI" : "LO", /* trigger on rising/falling edge */
(config & 64) ? "DEBOUNCE" : ""); /* debounce */
}
#endif /* 0 */
......
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