diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-09-02 12:52:11 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-10-20 15:26:42 -0700 |
| commit | 4c609cb890b13ef58e0c0cdd238993484e1b9b83 (patch) | |
| tree | 30c4be936612d43c439339e1375f0d70dd04a392 /drivers/gpu/drm | |
| parent | c4f9c4c2b3f1831e932e04db992cf6fe92c2a95a (diff) | |
drm/i915: PLL macro cleanup and pipe assertion check
Add a macro for accessing the two pipe PLLs and add a check to make sure
we don't access a non-existent one in the enable/disable functions.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-By: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-By: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 6 |
2 files changed, 9 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index d8bf9cf348e..6cad6b1e335 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2967,15 +2967,15 @@ #define _PCH_DPLL_A 0xc6014 #define _PCH_DPLL_B 0xc6018 -#define PCH_DPLL(pipe) _PIPE(pipe, _PCH_DPLL_A, _PCH_DPLL_B) +#define PCH_DPLL(pipe) (pipe == 0 ? _PCH_DPLL_A : _PCH_DPLL_B) #define _PCH_FPA0 0xc6040 #define FP_CB_TUNE (0x3<<22) #define _PCH_FPA1 0xc6044 #define _PCH_FPB0 0xc6048 #define _PCH_FPB1 0xc604c -#define PCH_FP0(pipe) _PIPE(pipe, _PCH_FPA0, _PCH_FPB0) -#define PCH_FP1(pipe) _PIPE(pipe, _PCH_FPA1, _PCH_FPB1) +#define PCH_FP0(pipe) (pipe == 0 ? _PCH_FPA0 : _PCH_FPB0) +#define PCH_FP1(pipe) (pipe == 0 ? _PCH_FPA1 : _PCH_FPB1) #define PCH_DPLL_TEST 0xc606c diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 2e28c687010..dade95ca0d8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1172,6 +1172,9 @@ static void intel_enable_pch_pll(struct drm_i915_private *dev_priv, int reg; u32 val; + if (pipe > 1) + return; + /* PCH only available on ILK+ */ BUG_ON(dev_priv->info->gen < 5); @@ -1192,6 +1195,9 @@ static void intel_disable_pch_pll(struct drm_i915_private *dev_priv, int reg; u32 val; + if (pipe > 1) + return; + /* PCH only available on ILK+ */ BUG_ON(dev_priv->info->gen < 5); |