diff options
| author |   Shobhit Kumar <shobhit.kumar@intel.com> | 2013-12-10 12:14:55 +0530 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-12-11 23:52:17 +0100 |
| commit | e9fe51c6656f7fd4fad38869cb70a42e65ec0ba9 (patch) | |
| tree | a8a7e936ec5aa8b4ec3f460f900853d396c947a8 /drivers/gpu/drm/i915/intel_dsi.c | |
| parent | drm/i915: Add more dev ops for MIPI sub encoder (diff) | |
| download | linux-dev-e9fe51c6656f7fd4fad38869cb70a42e65ec0ba9.tar.xz linux-dev-e9fe51c6656f7fd4fad38869cb70a42e65ec0ba9.zip | |
drm/i915: Use FLISDSI interface for band gap reset
v2: Rebased on latest code
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Yogesh Mohan Marimuthu <yogesh.mohan.marimuthu@intel.com>
Reviewed-by: Jani Nikula<jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi.c | 47 |
1 files changed, 8 insertions, 39 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 42ed28a309f5..1016e7b0337e 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -37,49 +37,18 @@ static const struct intel_dsi_device intel_dsi_devices[] = { }; - -static void vlv_cck_modify(struct drm_i915_private *dev_priv, u32 reg, u32 val, - u32 mask) -{ - u32 tmp = vlv_cck_read(dev_priv, reg); - tmp &= ~mask; - tmp |= val; - vlv_cck_write(dev_priv, reg, tmp); -} - -static void band_gap_wa(struct drm_i915_private *dev_priv) +static void band_gap_reset(struct drm_i915_private *dev_priv) { mutex_lock(&dev_priv->dpio_lock); - /* Enable bandgap fix in GOP driver */ - vlv_cck_modify(dev_priv, 0x6D, 0x00010000, 0x00030000); - msleep(20); - vlv_cck_modify(dev_priv, 0x6E, 0x00010000, 0x00030000); - msleep(20); - vlv_cck_modify(dev_priv, 0x6F, 0x00010000, 0x00030000); - msleep(20); - vlv_cck_modify(dev_priv, 0x00, 0x00008000, 0x00008000); - msleep(20); - vlv_cck_modify(dev_priv, 0x00, 0x00000000, 0x00008000); - msleep(20); - - /* Turn Display Trunk on */ - vlv_cck_modify(dev_priv, 0x6B, 0x00020000, 0x00030000); - msleep(20); - - vlv_cck_modify(dev_priv, 0x6C, 0x00020000, 0x00030000); - msleep(20); - - vlv_cck_modify(dev_priv, 0x6D, 0x00020000, 0x00030000); - msleep(20); - vlv_cck_modify(dev_priv, 0x6E, 0x00020000, 0x00030000); - msleep(20); - vlv_cck_modify(dev_priv, 0x6F, 0x00020000, 0x00030000); + vlv_flisdsi_write(dev_priv, 0x08, 0x0001); + vlv_flisdsi_write(dev_priv, 0x0F, 0x0005); + vlv_flisdsi_write(dev_priv, 0x0F, 0x0025); + udelay(150); + vlv_flisdsi_write(dev_priv, 0x0F, 0x0000); + vlv_flisdsi_write(dev_priv, 0x08, 0x0000); mutex_unlock(&dev_priv->dpio_lock); - - /* Need huge delay, otherwise clock is not stable */ - msleep(100); } static struct intel_dsi *intel_attached_dsi(struct drm_connector *connector) @@ -364,7 +333,7 @@ static void intel_dsi_mode_set(struct intel_encoder *intel_encoder) vlv_enable_dsi_pll(intel_encoder); /* XXX: Location of the call */ - band_gap_wa(dev_priv); + band_gap_reset(dev_priv); /* escape clock divider, 20MHz, shared for A and C. device ready must be * off when doing this! txclkesc? */ |