diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c index 9d2273fd2fed..18b16b2d2bf5 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c @@ -546,3 +546,24 @@ void dpu_setup_cdp(struct dpu_hw_blk_reg_map *c, u32 offset, DPU_REG_WRITE(c, offset, cdp_cntl); } + +bool dpu_hw_clk_force_ctrl(struct dpu_hw_blk_reg_map *c, + const struct dpu_clk_ctrl_reg *clk_ctrl_reg, + bool enable) +{ + u32 reg_val, new_val; + bool clk_forced_on; + + reg_val = DPU_REG_READ(c, clk_ctrl_reg->reg_off); + + if (enable) + new_val = reg_val | BIT(clk_ctrl_reg->bit_off); + else + new_val = reg_val & ~BIT(clk_ctrl_reg->bit_off); + + DPU_REG_WRITE(c, clk_ctrl_reg->reg_off, new_val); + + clk_forced_on = !(reg_val & BIT(clk_ctrl_reg->bit_off)); + + return clk_forced_on; +} |