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[PATCH] ARM: IntegratorCP: Fix CLCD MUX selection values 

The documentation on these values seems to be rather wrong.
These values have been determined by mere trial and error.

Signed-off-by: Russell King <rmk@arm.linux.org.uk>
This commit is contained in:
Russell King 2005-04-30 23:32:38 +01:00
parent ed562ab127
commit 4774e2260c
2 changed files with 19 additions and 4 deletions
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17
arch/arm/mach-integrator/integrator_cp.c
View File

@ -420,7 +420,22 @@ static struct clcd_panel vga = {
*/
static void cp_clcd_enable(struct clcd_fb *fb)
{
cm_control(CM_CTRL_LCDMUXSEL_MASK, CM_CTRL_LCDMUXSEL_VGA);
u32 val;
if (fb->fb.var.bits_per_pixel <= 8)
val = CM_CTRL_LCDMUXSEL_VGA_8421BPP;
else if (fb->fb.var.bits_per_pixel <= 16)
val = CM_CTRL_LCDMUXSEL_VGA_16BPP;
else
val = 0; /* no idea for this, don't trust the docs */
cm_control(CM_CTRL_LCDMUXSEL_MASK|
CM_CTRL_LCDEN0|
CM_CTRL_LCDEN1|
CM_CTRL_STATIC1|
CM_CTRL_STATIC2|
CM_CTRL_STATIC|
CM_CTRL_n24BITEN, val);
}
static unsigned long framesize = SZ_1M;

6
include/asm-arm/arch-integrator/cm.h
View File

@ -24,9 +24,9 @@ void cm_control(u32, u32);
#define CM_CTRL_LCDBIASDN (1 << 10)
#define CM_CTRL_LCDMUXSEL_MASK (7 << 11)
#define CM_CTRL_LCDMUXSEL_GENLCD (1 << 11)
#define CM_CTRL_LCDMUXSEL_SHARPLCD1 (3 << 11)
#define CM_CTRL_LCDMUXSEL_SHARPLCD2 (4 << 11)
#define CM_CTRL_LCDMUXSEL_VGA (7 << 11)
#define CM_CTRL_LCDMUXSEL_VGA_16BPP (2 << 11)
#define CM_CTRL_LCDMUXSEL_SHARPLCD (3 << 11)
#define CM_CTRL_LCDMUXSEL_VGA_8421BPP (4 << 11)
#define CM_CTRL_LCDEN0 (1 << 14)
#define CM_CTRL_LCDEN1 (1 << 15)
#define CM_CTRL_STATIC1 (1 << 16)