diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/cypress_dpm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/cypress_dpm.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/gpu/drm/radeon/cypress_dpm.c b/drivers/gpu/drm/radeon/cypress_dpm.c index 3eb7899a4035..72a0768df00f 100644 --- a/drivers/gpu/drm/radeon/cypress_dpm.c +++ b/drivers/gpu/drm/radeon/cypress_dpm.c @@ -22,13 +22,16 @@ * Authors: Alex Deucher */ -#include <drm/drmP.h> -#include "radeon.h" -#include "radeon_asic.h" +#include <linux/pci.h> + +#include "atom.h" +#include "cypress_dpm.h" +#include "evergreen.h" #include "evergreend.h" #include "r600_dpm.h" -#include "cypress_dpm.h" -#include "atom.h" +#include "rv770.h" +#include "radeon.h" +#include "radeon_asic.h" #define SMC_RAM_END 0x8000 @@ -42,10 +45,6 @@ #define MC_CG_SEQ_YCLK_SUSPEND 0x04 #define MC_CG_SEQ_YCLK_RESUME 0x0a -struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps); -struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev); -struct evergreen_power_info *evergreen_get_pi(struct radeon_device *rdev); - static void cypress_enable_bif_dynamic_pcie_gen2(struct radeon_device *rdev, bool enable) { @@ -558,8 +557,12 @@ static int cypress_populate_mclk_value(struct radeon_device *rdev, ASIC_INTERNAL_MEMORY_SS, vco_freq)) { u32 reference_clock = rdev->clock.mpll.reference_freq; u32 decoded_ref = rv740_get_decoded_reference_divider(dividers.ref_div); - u32 clk_s = reference_clock * 5 / (decoded_ref * ss.rate); - u32 clk_v = ss.percentage * + u32 clk_s, clk_v; + + if (!decoded_ref) + return -EINVAL; + clk_s = reference_clock * 5 / (decoded_ref * ss.rate); + clk_v = ss.percentage * (0x4000 * dividers.whole_fb_div + 0x800 * dividers.frac_fb_div) / (clk_s * 625); mpll_ss1 &= ~CLKV_MASK; |