evie/android_kernel_oneplus_msm8998
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msm: mdss: dp: fix HBR2 pattern generation

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Fix the HBR2 pattern generation by ensuring that the pattern
selection bit is not overwritten by a subsequent register write
that updates the scrambler reset count.

CRs-Fixed: 1108048
Change-Id: I2d2dcc79de82756eab015a343c24411a735947c9
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
This commit is contained in:
Tatenda Chipeperekwa 2017-01-23 12:22:40 -08:00
parent 8647848087
commit 4709f01bbd
1 changed files with 2 additions and 2 deletions
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4
drivers/video/fbdev/msm/mdss_dp_util.c
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@ -1449,7 +1449,7 @@ void mdss_dp_phy_send_test_pattern(struct mdss_dp_drv_pdata *dp)
value &= ~(1 << 16);
writel_relaxed(value, io->base +
DP_HBR2_COMPLIANCE_SCRAMBLER_RESET);
value = 0xFC;
value |= 0xFC;
writel_relaxed(value, io->base +
DP_HBR2_COMPLIANCE_SCRAMBLER_RESET);
writel_relaxed(0x2, io->base + DP_MAINLINK_LEVELS);
@ -1474,7 +1474,7 @@ void mdss_dp_phy_send_test_pattern(struct mdss_dp_drv_pdata *dp)
value = BIT(16);
writel_relaxed(value, io->base +
DP_HBR2_COMPLIANCE_SCRAMBLER_RESET);
value = 0xFC;
value |= 0xFC;
writel_relaxed(value, io->base +
DP_HBR2_COMPLIANCE_SCRAMBLER_RESET);
writel_relaxed(0x2, io->base + DP_MAINLINK_LEVELS);