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drm/msm/mdp4: only use lut_clk on mdp4.2+ 

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jonathan Marek 2018-11-21 20:52:27 -05:00 committed by Rob Clark
parent 1fed8df301
commit eb2b47bb9a
1 changed files with 13 additions and 9 deletions
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22
drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
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@ -206,7 +206,8 @@ int mdp4_disable(struct mdp4_kms *mdp4_kms)
clk_disable_unprepare(mdp4_kms->clk);
if (mdp4_kms->pclk)
clk_disable_unprepare(mdp4_kms->pclk);
clk_disable_unprepare(mdp4_kms->lut_clk);
if (mdp4_kms->lut_clk)
clk_disable_unprepare(mdp4_kms->lut_clk);
if (mdp4_kms->axi_clk)
clk_disable_unprepare(mdp4_kms->axi_clk);
@ -220,7 +221,8 @@ int mdp4_enable(struct mdp4_kms *mdp4_kms)
clk_prepare_enable(mdp4_kms->clk);
if (mdp4_kms->pclk)
clk_prepare_enable(mdp4_kms->pclk);
clk_prepare_enable(mdp4_kms->lut_clk);
if (mdp4_kms->lut_clk)
clk_prepare_enable(mdp4_kms->lut_clk);
if (mdp4_kms->axi_clk)
clk_prepare_enable(mdp4_kms->axi_clk);
@ -472,12 +474,13 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
if (IS_ERR(mdp4_kms->pclk))
mdp4_kms->pclk = NULL;
// XXX if (rev >= MDP_REV_42) { ???
mdp4_kms->lut_clk = devm_clk_get(&pdev->dev, "lut_clk");
if (IS_ERR(mdp4_kms->lut_clk)) {
DRM_DEV_ERROR(dev->dev, "failed to get lut_clk\n");
ret = PTR_ERR(mdp4_kms->lut_clk);
goto fail;
if (mdp4_kms->rev >= 2) {
mdp4_kms->lut_clk = devm_clk_get(&pdev->dev, "lut_clk");
if (IS_ERR(mdp4_kms->lut_clk)) {
DRM_DEV_ERROR(dev->dev, "failed to get lut_clk\n");
ret = PTR_ERR(mdp4_kms->lut_clk);
goto fail;
}
}
mdp4_kms->axi_clk = devm_clk_get(&pdev->dev, "bus_clk");
@ -488,7 +491,8 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
}
clk_set_rate(mdp4_kms->clk, config->max_clk);
clk_set_rate(mdp4_kms->lut_clk, config->max_clk);
if (mdp4_kms->lut_clk)
clk_set_rate(mdp4_kms->lut_clk, config->max_clk);
pm_runtime_enable(dev->dev);
mdp4_kms->rpm_enabled = true;