[PATCH v3 4/5] drm/msm: stop using device's match data pointer
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Fri Mar 4 03:21:05 UTC 2022
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.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at 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 c5c0650414c5..2e5f6b6fd3c3 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 2f44df8c5585..16698c757d94 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -255,13 +255,6 @@ 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)
@@ -348,7 +341,6 @@ 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;
@@ -393,30 +385,18 @@ 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 c89de88ed2d1..4d25d8955301 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) ||
@@ -318,7 +311,7 @@ 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;
@@ -329,7 +322,7 @@ static int mdss_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, priv);
- mdss = msm_mdss_init(pdev, mdp_ver == KMS_MDP5);
+ mdss = msm_mdss_init(pdev, is_mdp5);
if (IS_ERR(mdss)) {
ret = PTR_ERR(mdss);
platform_set_drvdata(pdev, NULL);
@@ -392,15 +385,15 @@ 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, dt_match);
--
2.34.1
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