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drm/radeon/kms: fix suspend on rv530 asics 

Apparently only rv515 asics need the workaround
added in f24d86f1a4
(drm/radeon/kms: fix resume regression for some r5xx laptops).

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=34709

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
hifive-unleashed-5.1
Alex Deucher 2011-04-12 13:33:27 -04:00 committed by Dave Airlie
parent 92656d707e
commit 71e16bfbd2
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/radeon/atom.c
View File

@ -32,6 +32,7 @@
#include "atom.h"
#include "atom-names.h"
#include "atom-bits.h"
#include "radeon.h"
#define ATOM_COND_ABOVE 0
#define ATOM_COND_ABOVEOREQUAL 1
@ -101,7 +102,9 @@ static void debug_print_spaces(int n)
static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
uint32_t index, uint32_t data)
{
struct radeon_device *rdev = ctx->card->dev->dev_private;
uint32_t temp = 0xCDCDCDCD;
while (1)
switch (CU8(base)) {
case ATOM_IIO_NOP:
@ -112,7 +115,8 @@ static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
base += 3;
break;
case ATOM_IIO_WRITE:
(void)ctx->card->ioreg_read(ctx->card, CU16(base + 1));
if (rdev->family == CHIP_RV515)
(void)ctx->card->ioreg_read(ctx->card, CU16(base + 1));
ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
base += 3;
break;