From 3edc38a0facef45ee22af8afdce3737f421f36ab Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 27 Jul 2016 15:28:56 -0400 Subject: [PATCH] drm/radeon: fix firmware info version checks Some of the checks didn't handle frev 2 tables properly. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_atombios.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index f8097a0e7a79..5df3ec73021b 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1155,7 +1155,7 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) le16_to_cpu(firmware_info->info.usReferenceClock); p1pll->reference_div = 0; - if (crev < 2) + if ((frev < 2) && (crev < 2)) p1pll->pll_out_min = le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output); else @@ -1164,7 +1164,7 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) p1pll->pll_out_max = le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output); - if (crev >= 4) { + if (((frev < 2) && (crev >= 4)) || (frev >= 2)) { p1pll->lcd_pll_out_min = le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100; if (p1pll->lcd_pll_out_min == 0) -- 2.20.1