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disp: msm: register rotator platform driver after genpd init

Browse source 
Due to power-domain, if rotator driver is registered early,
probe might get deferred several times and get stuck
indefinitely. So, this change adds driver registration
after genpd init to handle such cases.

Change-Id: I8dcb640d0ab0cdf0818cbce1b1fb460c28d8b9e7
Signed-off-by: Yashwanth <yvulapu@codeaurora.org>
This commit is contained in:
Yashwanth 2020-09-25 14:43:49 +05:30
commit 2683324973
4 changed files with 16 additions and 14 deletions
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6
msm/msm_drv.c
View file

@ -860,6 +860,10 @@ static int msm_drm_component_init(struct device *dev)
goto fail;
}
/* Register rotator platform driver only after genpd init */
sde_rotator_register();
sde_rotator_smmu_driver_register();
ret = msm_drm_display_thread_create(param, priv, ddev, dev);
if (ret) {
dev_err(dev, "msm_drm_display_thread_create failed\n");
@ -2198,8 +2202,6 @@ static int __init msm_drm_register(void)
msm_hdcp_register();
dp_display_register();
msm_smmu_driver_init();
sde_rotator_register();
sde_rotator_smmu_driver_register();
msm_dsi_register();
msm_edp_register();
msm_hdmi_register();

16
msm/msm_drv.h
View file

@ -1294,25 +1294,25 @@ static inline void __exit sde_wb_unregister(void)
#endif /* CONFIG_DRM_SDE_WB */
#if IS_ENABLED(CONFIG_MSM_SDE_ROTATOR)
void __init sde_rotator_register(void);
void __exit sde_rotator_unregister(void);
void sde_rotator_register(void);
void sde_rotator_unregister(void);
#else
static inline void __init sde_rotator_register(void)
static inline void sde_rotator_register(void)
{
}
static inline void __exit sde_rotator_unregister(void)
static inline void sde_rotator_unregister(void)
{
}
#endif /* CONFIG_MSM_SDE_ROTATOR */
#if IS_ENABLED(CONFIG_MSM_SDE_ROTATOR)
void __init sde_rotator_smmu_driver_register(void);
void __exit sde_rotator_smmu_driver_unregister(void);
void sde_rotator_smmu_driver_register(void);
void sde_rotator_smmu_driver_unregister(void);
#else
static inline void __init sde_rotator_smmu_driver_register(void)
static inline void sde_rotator_smmu_driver_register(void)
{
}
static inline void __exit sde_rotator_smmu_driver_unregister(void)
static inline void sde_rotator_smmu_driver_unregister(void)
{
}
#endif /* CONFIG_MSM_SDE_ROTATOR */

4
rotator/sde_rotator_dev.c
View file

@ -3611,12 +3611,12 @@ static struct platform_driver rotator_driver = {
};
#endif
void __init sde_rotator_register(void)
void sde_rotator_register(void)
{
platform_driver_register(&rotator_driver);
}
void __exit sde_rotator_unregister(void)
void sde_rotator_unregister(void)
{
platform_driver_unregister(&rotator_driver);
}

4
rotator/sde_rotator_smmu.c
View file

@ -671,12 +671,12 @@ static struct platform_driver sde_smmu_driver = {
},
};
void __init sde_rotator_smmu_driver_register(void)
void sde_rotator_smmu_driver_register(void)
{
platform_driver_register(&sde_smmu_driver);
}
void __exit sde_rotator_smmu_driver_unregister(void)
void sde_rotator_smmu_driver_unregister(void)
{
platform_driver_unregister(&sde_smmu_driver);
}