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gma500: kill bogus code 

During the power split ups and work a chunk of code escaped into the
Poulsbo code path which it isn't for. On some devices such as the Dell
mini-10 this causes problems.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2011-08-26 11:19:17 +01:00 committed by Greg Kroah-Hartman
parent 6cee1f8344
commit d921b0b765
1 changed files with 0 additions and 32 deletions
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32
drivers/staging/gma500/psb_device.c
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@ -213,7 +213,6 @@ static int psb_restore_display_registers(struct drm_device *dev)
struct drm_psb_private *dev_priv = dev->dev_private;
struct drm_crtc *crtc;
struct drm_connector *connector;
int pp_stat;
/* Display arbitration + watermarks */
PSB_WVDC32(dev_priv->saveDSPARB, DSPARB);
@ -237,37 +236,6 @@ static int psb_restore_display_registers(struct drm_device *dev)
connector->funcs->restore(connector);
mutex_unlock(&dev->mode_config.mutex);
if (dev_priv->iLVDS_enable) {
/*shutdown the panel*/
PSB_WVDC32(0, PP_CONTROL);
do {
pp_stat = PSB_RVDC32(PP_STATUS);
} while (pp_stat & 0x80000000);
/* Turn off the plane */
PSB_WVDC32(0x58000000, DSPACNTR);
PSB_WVDC32(0, DSPASURF);/*trigger the plane disable*/
/* Wait ~4 ticks */
msleep(4);
/* Turn off pipe */
PSB_WVDC32(0x0, PIPEACONF);
/* Wait ~8 ticks */
msleep(8);
/* Turn off PLLs */
PSB_WVDC32(0, MRST_DPLL_A);
} else {
PSB_WVDC32(DPI_SHUT_DOWN, DPI_CONTROL_REG);
PSB_WVDC32(0x0, PIPEACONF);
PSB_WVDC32(0x2faf0000, BLC_PWM_CTL);
while (REG_READ(0x70008) & 0x40000000)
cpu_relax();
while ((PSB_RVDC32(GEN_FIFO_STAT_REG) & DPI_FIFO_EMPTY)
!= DPI_FIFO_EMPTY)
cpu_relax();
PSB_WVDC32(0, DEVICE_READY_REG);
}
return 0;
}