From: Dmitry Baryshkov dmitry.baryshkov@linaro.org
[ Upstream commit c6122688f2652d7f8a44000ce21e84e82bae2b5e ]
The rest of the code expects that master's device drvdata is the struct msm_drm_private instance. Do not override the mdp5's drvdata.
Fixes: 6874f48bb8b0 ("drm/msm: make mdp5/dpu devices master components") Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Reviewed-by: Abhinav Kumar quic_abhinavk@quicinc.com Patchwork: https://patchwork.freedesktop.org/patch/508334/ Link: https://lore.kernel.org/r/20221024152642.3213488-1-dmitry.baryshkov@linaro.o... Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 32 +++++++++++++----------- 1 file changed, 17 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c index b0d21838a134..b46f983f2b46 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c @@ -203,7 +203,7 @@ static int mdp5_set_split_display(struct msm_kms *kms, slave_encoder); }
-static void mdp5_destroy(struct platform_device *pdev); +static void mdp5_destroy(struct mdp5_kms *mdp5_kms);
static void mdp5_kms_destroy(struct msm_kms *kms) { @@ -223,7 +223,7 @@ static void mdp5_kms_destroy(struct msm_kms *kms) }
mdp_kms_destroy(&mdp5_kms->base); - mdp5_destroy(mdp5_kms->pdev); + mdp5_destroy(mdp5_kms); }
#ifdef CONFIG_DEBUG_FS @@ -519,9 +519,10 @@ static void read_mdp_hw_revision(struct mdp5_kms *mdp5_kms, struct device *dev = &mdp5_kms->pdev->dev; u32 version;
- pm_runtime_get_sync(dev); + /* Manually enable the MDP5, as pm runtime isn't usable yet. */ + mdp5_enable(mdp5_kms); version = mdp5_read(mdp5_kms, REG_MDP5_HW_VERSION); - pm_runtime_put_sync(dev); + mdp5_disable(mdp5_kms);
*major = FIELD(version, MDP5_HW_VERSION_MAJOR); *minor = FIELD(version, MDP5_HW_VERSION_MINOR); @@ -559,6 +560,8 @@ static int mdp5_kms_init(struct drm_device *dev) int irq, i, ret;
ret = mdp5_init(to_platform_device(dev->dev), dev); + if (ret) + return ret;
/* priv->kms would have been populated by the MDP5 driver */ kms = priv->kms; @@ -632,9 +635,8 @@ static int mdp5_kms_init(struct drm_device *dev) return ret; }
-static void mdp5_destroy(struct platform_device *pdev) +static void mdp5_destroy(struct mdp5_kms *mdp5_kms) { - struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev); int i;
if (mdp5_kms->ctlm) @@ -648,7 +650,7 @@ static void mdp5_destroy(struct platform_device *pdev) kfree(mdp5_kms->intfs[i]);
if (mdp5_kms->rpm_enabled) - pm_runtime_disable(&pdev->dev); + pm_runtime_disable(&mdp5_kms->pdev->dev);
drm_atomic_private_obj_fini(&mdp5_kms->glob_state); drm_modeset_lock_fini(&mdp5_kms->glob_state_lock); @@ -797,8 +799,6 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev) goto fail; }
- platform_set_drvdata(pdev, mdp5_kms); - spin_lock_init(&mdp5_kms->resource_lock);
mdp5_kms->dev = dev; @@ -839,9 +839,6 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev) */ clk_set_rate(mdp5_kms->core_clk, 200000000);
- pm_runtime_enable(&pdev->dev); - mdp5_kms->rpm_enabled = true; - read_mdp_hw_revision(mdp5_kms, &major, &minor);
mdp5_kms->cfg = mdp5_cfg_init(mdp5_kms, major, minor); @@ -893,10 +890,13 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev) /* set uninit-ed kms */ priv->kms = &mdp5_kms->base.base;
+ pm_runtime_enable(&pdev->dev); + mdp5_kms->rpm_enabled = true; + return 0; fail: if (mdp5_kms) - mdp5_destroy(pdev); + mdp5_destroy(mdp5_kms); return ret; }
@@ -953,7 +953,8 @@ static int mdp5_dev_remove(struct platform_device *pdev) static __maybe_unused int mdp5_runtime_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); - struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev); + struct msm_drm_private *priv = platform_get_drvdata(pdev); + struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms));
DBG("");
@@ -963,7 +964,8 @@ static __maybe_unused int mdp5_runtime_suspend(struct device *dev) static __maybe_unused int mdp5_runtime_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); - struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev); + struct msm_drm_private *priv = platform_get_drvdata(pdev); + struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms));
DBG("");