diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index fc9a6a83dfc7..de34e221c2fe 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -420,9 +420,10 @@ static void etnaviv_gpu_update_clock(struct etnaviv_gpu *gpu) gpu->base_rate_shader >> gpu->freq_scale); } else { unsigned int fscale = 1 << (6 - gpu->freq_scale); - u32 clock = VIVS_HI_CLOCK_CONTROL_DISABLE_DEBUG_REGISTERS | - VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale); + u32 clock = gpu_read(gpu, VIVS_HI_CLOCK_CONTROL); + clock &= ~VIVS_HI_CLOCK_CONTROL_FSCALE_VAL__MASK; + clock |= VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale); etnaviv_gpu_load_clock(gpu, clock); } } @@ -445,9 +446,9 @@ static int etnaviv_hw_reset(struct etnaviv_gpu *gpu) while (time_is_after_jiffies(timeout)) { /* enable clock */ - etnaviv_gpu_update_clock(gpu); - - control = gpu_read(gpu, VIVS_HI_CLOCK_CONTROL); + unsigned int fscale = 1 << (6 - gpu->freq_scale); + control = VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale); + etnaviv_gpu_load_clock(gpu, control); /* Wait for stable clock. Vivante's code waited for 1ms */ usleep_range(1000, 10000); @@ -490,6 +491,10 @@ static int etnaviv_hw_reset(struct etnaviv_gpu *gpu) continue; } + /* disable debug registers, as they are not normally needed */ + control |= VIVS_HI_CLOCK_CONTROL_DISABLE_DEBUG_REGISTERS; + gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, control); + failed = false; break; } |