Signed-off-by: Jonathan Marek jonathan@marek.ca --- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c index ae25d763cd8c..8f765f284d11 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c @@ -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)) { - dev_err(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)) { + dev_err(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;