path: root/drivers/macintosh
diff options
authorFinn Thain <fthain@telegraphics.com.au>2018-07-02 08:21:19 (GMT)
committerMichael Ellerman <mpe@ellerman.id.au>2018-07-31 09:56:42 (GMT)
commit54c990775f78113a708f24e15877f6b7bd9a1277 (patch)
tree792988c58db7653ee6dd8b84ff1eee67903df36a /drivers/macintosh
parentc2f028b6a0b241d1b18d8d0ebcb13d21659dcfe7 (diff)
macintosh/via-pmu68k: Don't load driver on unsupported hardware
Don't load the via-pmu68k driver on early PowerBooks. The M50753 PMU device found in those models was never supported by this driver. Attempting to load the driver usually causes a boot hang. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Michael Schmitz <schmitzmic@gmail.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/macintosh')
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index d545ed4..bec8e18 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -175,9 +175,6 @@ static s8 pmu_data_len[256][2] = {
int __init find_via_pmu(void)
switch (macintosh_config->adb_type) {
- case MAC_ADB_PB1:
- pmu_kind = PMU_68K_V1;
- break;
case MAC_ADB_PB2:
pmu_kind = PMU_68K_V2;
@@ -785,7 +782,6 @@ pmu_enable_backlight(int on)
/* first call: get current backlight value */
if (backlight_level < 0) {
switch(pmu_kind) {
- case PMU_68K_V1:
case PMU_68K_V2:
pmu_request(&req, NULL, 3, PMU_READ_NVRAM, 0x14, 0xe);
while (!req.complete)

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