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input: touchscreen: mainstone: fix pxa2xx+pxa3xx configuration

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There are two different ways of flushing the ac97 queue
in this driver, selected by a compile time option.

Change this to a runtime selection to make it work when both
are enabled.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: linux-input@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2019-09-12 10:56:20 +02:00
parent f0b66b606a
commit bb628a6eb1
1 changed files with 7 additions and 12 deletions
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19
drivers/input/touchscreen/mainstone-wm97xx.c
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@ -98,25 +98,20 @@ MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
/* flush AC97 slot 5 FIFO on pxa machines */
#ifdef CONFIG_PXA27x
static void wm97xx_acc_pen_up(struct wm97xx *wm)
{
schedule_timeout_uninterruptible(1);
while (MISR & (1 << 2))
MODR;
}
#else
static void wm97xx_acc_pen_up(struct wm97xx *wm)
{
unsigned int count;
schedule_timeout_uninterruptible(1);
for (count = 0; count < 16; count++)
MODR;
if (cpu_is_pxa27x()) {
while (MISR & (1 << 2))
MODR;
} else if (cpu_is_pxa3xx()) {
for (count = 0; count < 16; count++)
MODR;
}
}
#endif
static int wm97xx_acc_pen_down(struct wm97xx *wm)
{