Re: [patch] Support powering sharp zaurus sl-5500 LCD up and down

From: Pavel Machek
Date: Sat Jul 30 2005 - 08:09:02 EST


Hi!

> > + /* read comadj */
> > +#ifdef CONFIG_MACH_POODLE
> > + comadj = 118;
> > +#else
> > + comadj = 128;
> > +#endif
>
> Can you go back to the Sharp source and confirm that these values should
> be hardcoded in both the poodle and collie cases please? I know the
> sharpsl_param code can provide them but I can't remember exactly which
> models use which fields. I want to make sure this isn't a quick hack
> John made before sharpsl_param was written :).

Sharp sources are a big mess (as usual), but reading it from
sharpsl_param seems to be okay for at least poodle. I'll read it for
collie, too, and see what happens... seems to work.

[Not for andrew, yet.]
Pavel


diff --git a/drivers/video/backlight/locomolcd.c b/drivers/video/backlight/locomolcd.c
--- a/drivers/video/backlight/locomolcd.c
+++ b/drivers/video/backlight/locomolcd.c
@@ -20,6 +20,7 @@

#include <asm/hardware/locomo.h>
#include <asm/irq.h>
+#include <asm/mach/sharpsl_param.h>

#ifdef CONFIG_SA1100_COLLIE
#include <asm/arch/collie.h>
@@ -29,7 +30,7 @@

extern void (*sa1100fb_lcd_power)(int on);

-static struct locomo_dev *locomolcd_dev = NULL;
+static struct locomo_dev *locomolcd_dev;

static void locomolcd_on(int comadj)
{
@@ -82,7 +83,7 @@ static void locomolcd_off(int comadj)

void locomolcd_power(int on)
{
- int comadj = 118;
+ int comadj = sharpsl_param.comadj;
unsigned long flags;

local_irq_save(flags);
@@ -93,11 +94,13 @@ void locomolcd_power(int on)
}

/* read comadj */
+ if (comadj == -1) {
#ifdef CONFIG_MACH_POODLE
- comadj = 118;
+ comadj = 118;
#else
- comadj = 128;
+ comadj = 128;
#endif
+ }

if (on)
locomolcd_on(comadj);

--
teflon -- maybe it is a trademark, but it should not be.
-
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