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Message-ID: <lsq.1375276989.437149876@decadent.org.uk> Date: Wed, 31 Jul 2013 15:23:09 +0200 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org CC: akpm@...ux-foundation.org, "Alex Deucher" <alexander.deucher@....com> Subject: [64/84] drm/radeon: improve dac adjust heuristics for legacy pdac 3.2.50-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher <alexander.deucher@....com> commit 03ed8cf9b28d886c64c7e705c7bb1a365fd8fb95 upstream. Hopefully avoid more quirks in the future due to bogus vbios dac data. Signed-off-by: Alex Deucher <alexander.deucher@....com> Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- drivers/gpu/drm/radeon/radeon_combios.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -953,8 +953,10 @@ struct radeon_encoder_primary_dac *radeo dac = RBIOS8(dac_info + 0x3) & 0xf; p_dac->ps2_pdac_adj = (bg << 8) | (dac); } - /* if the values are all zeros, use the table */ - if (p_dac->ps2_pdac_adj) + /* if the values are zeros, use the table */ + if ((dac == 0) || (bg == 0)) + found = 0; + else found = 1; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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