diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_clocks.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_combios.c | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_clocks.c b/drivers/gpu/drm/radeon/radeon_clocks.c index a8135416762..2c541e08f16 100644 --- a/drivers/gpu/drm/radeon/radeon_clocks.c +++ b/drivers/gpu/drm/radeon/radeon_clocks.c @@ -44,6 +44,10 @@ uint32_t radeon_legacy_get_engine_clock(struct radeon_device *rdev) ref_div = RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) & RADEON_M_SPLL_REF_DIV_MASK; + + if (ref_div == 0) + return 0; + sclk = fb_div / ref_div; post_div = RREG32_PLL(RADEON_SCLK_CNTL) & RADEON_SCLK_SRC_SEL_MASK; @@ -70,6 +74,10 @@ static uint32_t radeon_legacy_get_memory_clock(struct radeon_device *rdev) ref_div = RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) & RADEON_M_SPLL_REF_DIV_MASK; + + if (ref_div == 0) + return 0; + mclk = fb_div / ref_div; post_div = RREG32_PLL(RADEON_MCLK_CNTL) & 0x7; diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index adc47437569..14d3555e4af 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -495,7 +495,7 @@ bool radeon_combios_get_clock_info(struct drm_device *dev) uint16_t sclk, mclk; if (rdev->bios == NULL) - return NULL; + return false; pll_info = combios_get_table_offset(dev, COMBIOS_PLL_INFO_TABLE); if (pll_info) { |