提交 e8abb5b5 编写于 作者: R Rob Clark

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: NRob Clark <robdclark@gmail.com>
上级 034fbcc3
......@@ -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);
......
......@@ -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;
......
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