diff options
| author | Ronald G. Minnich <rminnich@google.com> | 2013-10-01 10:46:35 -0700 |
|---|---|---|
| committer | Isaac Christensen <isaac.christensen@se-eng.com> | 2014-08-28 01:00:47 +0200 |
| commit | 74fade43ee6563505b29484ac5cf8c860a766650 (patch) | |
| tree | 8d01f57204843b0d85d2886322e08cce2ac49024 /src/drivers/intel/gma/intel_dp.c | |
| parent | d7c25b357fb26c0bd9e7844e32529c90e994f4a3 (diff) | |
Peppy/Haswell: move more support functions from mainboard to the intel i915 driver
Move (and rename to make it clearer) the function that computes display
parameters from the dpcd and edid.
Change-Id: Idfbb56fd312b23c742c52abca1a34ae117a8fece
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-on: https://chromium-review.googlesource.com/171366
Reviewed-by: Furquan Shaikh <furquan.m.shaikh@gmail.com>
Reviewed-by: Ronald Minnich <rminnich@chromium.org>
Tested-by: Ronald Minnich <rminnich@chromium.org>
Commit-Queue: Ronald Minnich <rminnich@chromium.org>
(cherry picked from commit 8f2b3bafee7cb05db8fae1c52fc9e1ee64e5e35d)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6768
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Diffstat (limited to 'src/drivers/intel/gma/intel_dp.c')
| -rw-r--r-- | src/drivers/intel/gma/intel_dp.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/drivers/intel/gma/intel_dp.c b/src/drivers/intel/gma/intel_dp.c index 393692bd04..0a28a0b7ce 100644 --- a/src/drivers/intel/gma/intel_dp.c +++ b/src/drivers/intel/gma/intel_dp.c @@ -1787,6 +1787,22 @@ void intel_dp_set_m_n_regs(struct intel_dp *dp) gtt_write(PIPE_LINK_N1(dp->transcoder),dp->m_n.link_n); } +int intel_dp_bw_code_to_link_rate(u8 link_bw) +{ + switch (link_bw) { + default: + printk(BIOS_ERR, + "ERROR: link_bw(%d) is bogus; must be one of 6, 0xa, or 0x14\n", + link_bw); + case DP_LINK_BW_1_62: + return 162000; + case DP_LINK_BW_2_7: + return 270000; + case DP_LINK_BW_5_4: + return 540000; + } +} + void intel_dp_set_resolution(struct intel_dp *intel_dp) { gtt_write(HTOTAL(intel_dp->transcoder),intel_dp->htotal); |