Let's make the match's data pointer a (sub-)driver's private data. The only user currently is the msm_drm_init() function, using this data to select kms_init callback. Pass this callback through the driver's private data instead.
Reviewed-by: Stephen Boyd swboyd@chromium.org Reviewed-by: Abhinav Kumar quic_abhinavk@quicinc.com Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 10 ++++--- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 14 +++++---- drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 11 ++++--- drivers/gpu/drm/msm/msm_drv.c | 38 ++++++------------------ drivers/gpu/drm/msm/msm_drv.h | 5 +--- drivers/gpu/drm/msm/msm_kms.h | 4 --- drivers/gpu/drm/msm/msm_mdss.c | 29 +++++++----------- 7 files changed, 42 insertions(+), 69 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index e29796c4f27b..38627ccf3068 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -1172,7 +1172,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms) return rc; }
-struct msm_kms *dpu_kms_init(struct drm_device *dev) +static int dpu_kms_init(struct drm_device *dev) { struct msm_drm_private *priv; struct dpu_kms *dpu_kms; @@ -1180,7 +1180,7 @@ struct msm_kms *dpu_kms_init(struct drm_device *dev)
if (!dev) { DPU_ERROR("drm device node invalid\n"); - return ERR_PTR(-EINVAL); + return -EINVAL; }
priv = dev->dev_private; @@ -1189,11 +1189,11 @@ struct msm_kms *dpu_kms_init(struct drm_device *dev) irq = irq_of_parse_and_map(dpu_kms->pdev->dev.of_node, 0); if (irq < 0) { DPU_ERROR("failed to get irq: %d\n", irq); - return ERR_PTR(irq); + return irq; } dpu_kms->base.irq = irq;
- return &dpu_kms->base; + return 0; }
static int dpu_bind(struct device *dev, struct device *master, void *data) @@ -1204,6 +1204,8 @@ static int dpu_bind(struct device *dev, struct device *master, void *data) struct dpu_kms *dpu_kms; int ret = 0;
+ priv->kms_init = dpu_kms_init; + dpu_kms = devm_kzalloc(&pdev->dev, sizeof(*dpu_kms), GFP_KERNEL); if (!dpu_kms) return -ENOMEM; diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c index 5dc839184aef..1a14f1d3cdf7 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c @@ -389,7 +389,7 @@ static void read_mdp_hw_revision(struct mdp4_kms *mdp4_kms, DRM_DEV_INFO(dev->dev, "MDP4 version v%d.%d", *major, *minor); }
-struct msm_kms *mdp4_kms_init(struct drm_device *dev) +static int mdp4_kms_init(struct drm_device *dev) { struct platform_device *pdev = to_platform_device(dev->dev); struct mdp4_platform_config *config = mdp4_get_config(pdev); @@ -403,8 +403,7 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev) mdp4_kms = kzalloc(sizeof(*mdp4_kms), GFP_KERNEL); if (!mdp4_kms) { DRM_DEV_ERROR(dev->dev, "failed to allocate kms\n"); - ret = -ENOMEM; - goto fail; + return -ENOMEM; }
ret = mdp_kms_init(&mdp4_kms->base, &kms_funcs); @@ -551,12 +550,13 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev) dev->mode_config.max_width = 2048; dev->mode_config.max_height = 2048;
- return kms; + return 0;
fail: if (kms) mdp4_destroy(kms); - return ERR_PTR(ret); + + return ret; }
static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev) @@ -583,6 +583,8 @@ static int mdp4_probe(struct platform_device *pdev) if (!priv) return -ENOMEM;
+ priv->kms_init = mdp4_kms_init; + platform_set_drvdata(pdev, priv);
/* @@ -600,7 +602,7 @@ static int mdp4_remove(struct platform_device *pdev) }
static const struct of_device_id mdp4_dt_match[] = { - { .compatible = "qcom,mdp4", .data = (void *)KMS_MDP4 }, + { .compatible = "qcom,mdp4" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mdp4_dt_match); diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c index 3b92372e7bdf..0c78608832c3 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c @@ -544,7 +544,7 @@ static int get_clk(struct platform_device *pdev, struct clk **clkp, return 0; }
-struct msm_kms *mdp5_kms_init(struct drm_device *dev) +static int mdp5_kms_init(struct drm_device *dev) { struct msm_drm_private *priv = dev->dev_private; struct platform_device *pdev; @@ -558,7 +558,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev) /* priv->kms would have been populated by the MDP5 driver */ kms = priv->kms; if (!kms) - return NULL; + return -ENOMEM;
mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); pdev = mdp5_kms->pdev; @@ -637,11 +637,12 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev) dev->max_vblank_count = 0; /* max_vblank_count is set on each CRTC */ dev->vblank_disable_immediate = true;
- return kms; + return 0; fail: if (kms) mdp5_kms_destroy(kms); - return ERR_PTR(ret); + + return ret; }
static void mdp5_destroy(struct platform_device *pdev) @@ -803,6 +804,8 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev) u32 major, minor; int ret;
+ priv->kms_init = mdp5_kms_init; + mdp5_kms = devm_kzalloc(&pdev->dev, sizeof(*mdp5_kms), GFP_KERNEL); if (!mdp5_kms) { ret = -ENOMEM; diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 16d8aa225405..b37a2601d4c3 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -256,13 +256,6 @@ static int msm_drm_uninit(struct device *dev) return 0; }
-static int get_mdp_ver(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - - return (int) (unsigned long) of_device_get_match_data(dev); -} - #include <linux/of_address.h>
bool msm_use_mmu(struct drm_device *dev) @@ -349,7 +342,6 @@ static int msm_init_vram(struct drm_device *dev)
static int msm_drm_init(struct device *dev, const struct drm_driver *drv) { - struct platform_device *pdev = to_platform_device(dev); struct msm_drm_private *priv = dev_get_drvdata(dev); struct drm_device *ddev; struct msm_kms *kms; @@ -394,30 +386,18 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
msm_gem_shrinker_init(ddev);
- switch (get_mdp_ver(pdev)) { - case KMS_MDP4: - kms = mdp4_kms_init(ddev); - priv->kms = kms; - break; - case KMS_MDP5: - kms = mdp5_kms_init(ddev); - break; - case KMS_DPU: - kms = dpu_kms_init(ddev); - priv->kms = kms; - break; - default: + if (priv->kms_init) { + ret = priv->kms_init(ddev); + if (ret) { + DRM_DEV_ERROR(dev, "failed to load kms\n"); + priv->kms = NULL; + goto err_msm_uninit; + } + kms = priv->kms; + } else { /* valid only for the dummy headless case, where of_node=NULL */ WARN_ON(dev->of_node); kms = NULL; - break; - } - - if (IS_ERR(kms)) { - DRM_DEV_ERROR(dev, "failed to load kms\n"); - ret = PTR_ERR(kms); - priv->kms = NULL; - goto err_msm_uninit; }
/* Enable normalization of plane zpos */ diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 2fdaf4a614cc..c1aaadfbea34 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -121,6 +121,7 @@ struct msm_drm_private { struct drm_device *dev;
struct msm_kms *kms; + int (*kms_init)(struct drm_device *dev);
/* subordinate devices, if present: */ struct platform_device *gpu_pdev; @@ -431,10 +432,6 @@ static inline void msm_dp_debugfs_init(struct msm_dp *dp_display,
#endif
-#define KMS_MDP4 4 -#define KMS_MDP5 5 -#define KMS_DPU 3 - void msm_mdp4_register(void); void msm_mdp4_unregister(void); void msm_mdp_register(void); diff --git a/drivers/gpu/drm/msm/msm_kms.h b/drivers/gpu/drm/msm/msm_kms.h index 13c2eb0b2bcf..1f571372e928 100644 --- a/drivers/gpu/drm/msm/msm_kms.h +++ b/drivers/gpu/drm/msm/msm_kms.h @@ -194,10 +194,6 @@ static inline void msm_kms_destroy(struct msm_kms *kms) msm_atomic_destroy_pending_timer(&kms->pending_timers[i]); }
-struct msm_kms *mdp4_kms_init(struct drm_device *dev); -struct msm_kms *mdp5_kms_init(struct drm_device *dev); -struct msm_kms *dpu_kms_init(struct drm_device *dev); - extern const struct of_device_id dpu_dt_match[]; extern const struct of_device_id mdp5_dt_match[];
diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c index 5e63d3dc308c..3076b34a2922 100644 --- a/drivers/gpu/drm/msm/msm_mdss.c +++ b/drivers/gpu/drm/msm/msm_mdss.c @@ -301,13 +301,6 @@ static const struct dev_pm_ops mdss_pm_ops = { .complete = msm_pm_complete, };
-static int get_mdp_ver(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - - return (int) (unsigned long) of_device_get_match_data(dev); -} - static int find_mdp_node(struct device *dev, void *data) { return of_match_node(dpu_dt_match, dev->of_node) || @@ -318,12 +311,12 @@ static int mdss_probe(struct platform_device *pdev) { struct msm_mdss *mdss; struct msm_drm_private *priv; - int mdp_ver = get_mdp_ver(pdev); + bool is_mdp5 = of_device_is_compatible(pdev->dev.of_node, "qcom,mdss"); struct device *mdp_dev; struct device *dev = &pdev->dev; int ret;
- mdss = msm_mdss_init(pdev, mdp_ver == KMS_MDP5); + mdss = msm_mdss_init(pdev, is_mdp5); if (IS_ERR(mdss)) return PTR_ERR(mdss);
@@ -389,15 +382,15 @@ static int mdss_remove(struct platform_device *pdev) }
static const struct of_device_id mdss_dt_match[] = { - { .compatible = "qcom,mdss", .data = (void *)KMS_MDP5 }, - { .compatible = "qcom,msm8998-mdss", .data = (void *)KMS_DPU }, - { .compatible = "qcom,qcm2290-mdss", .data = (void *)KMS_DPU }, - { .compatible = "qcom,sdm845-mdss", .data = (void *)KMS_DPU }, - { .compatible = "qcom,sc7180-mdss", .data = (void *)KMS_DPU }, - { .compatible = "qcom,sc7280-mdss", .data = (void *)KMS_DPU }, - { .compatible = "qcom,sc8180x-mdss", .data = (void *)KMS_DPU }, - { .compatible = "qcom,sm8150-mdss", .data = (void *)KMS_DPU }, - { .compatible = "qcom,sm8250-mdss", .data = (void *)KMS_DPU }, + { .compatible = "qcom,mdss" }, + { .compatible = "qcom,msm8998-mdss" }, + { .compatible = "qcom,qcm2290-mdss" }, + { .compatible = "qcom,sdm845-mdss" }, + { .compatible = "qcom,sc7180-mdss" }, + { .compatible = "qcom,sc7280-mdss" }, + { .compatible = "qcom,sc8180x-mdss" }, + { .compatible = "qcom,sm8150-mdss" }, + { .compatible = "qcom,sm8250-mdss" }, {} }; MODULE_DEVICE_TABLE(of, mdss_dt_match);