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| author | Rob Clark <robdclark@gmail.com> | 2014-06-30 18:50:51 -0400 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2014-08-04 11:55:28 -0400 |
| commit | e8abb5b5f4a6894d8ecf227de5d9bb6570e399ff (patch) | |
| tree | dd1e96fe5cf7c05e4371cba7e90d4615f6a2515a | |
| parent | 034fbcc3d8a5dff5d3df5a4ad6bf9cc0b01bd970 (diff) | |
| download | op-kernel-dev-e8abb5b5f4a6894d8ecf227de5d9bb6570e399ff.zip op-kernel-dev-e8abb5b5f4a6894d8ecf227de5d9bb6570e399ff.tar.gz | |
drm/msm/mdp4: add mdp axi clk
Downstream kernel holds this clk via a fake-parent relationship.
Upstream clock framework requires that we hold it explicitly.
Signed-off-by: Rob Clark <robdclark@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h | 1 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c index 5a7bfd4..4a08655 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c @@ -176,6 +176,8 @@ int mdp4_disable(struct mdp4_kms *mdp4_kms) if (mdp4_kms->pclk) clk_disable_unprepare(mdp4_kms->pclk); clk_disable_unprepare(mdp4_kms->lut_clk); + if (mdp4_kms->axi_clk) + clk_disable_unprepare(mdp4_kms->axi_clk); return 0; } @@ -188,6 +190,8 @@ int mdp4_enable(struct mdp4_kms *mdp4_kms) if (mdp4_kms->pclk) clk_prepare_enable(mdp4_kms->pclk); clk_prepare_enable(mdp4_kms->lut_clk); + if (mdp4_kms->axi_clk) + clk_prepare_enable(mdp4_kms->axi_clk); return 0; } @@ -335,6 +339,13 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev) goto fail; } + mdp4_kms->axi_clk = devm_clk_get(&pdev->dev, "mdp_axi_clk"); + if (IS_ERR(mdp4_kms->axi_clk)) { + dev_err(dev->dev, "failed to get axi_clk\n"); + ret = PTR_ERR(mdp4_kms->axi_clk); + goto fail; + } + clk_set_rate(mdp4_kms->clk, config->max_clk); clk_set_rate(mdp4_kms->lut_clk, config->max_clk); diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h index 715520c5..3225da8 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h @@ -42,6 +42,7 @@ struct mdp4_kms { struct clk *clk; struct clk *pclk; struct clk *lut_clk; + struct clk *axi_clk; struct mdp_irq error_handler; |
