[PATCH v11 1/5] drm/mediatek: Omit warning on probe defers

Enric Balletbo i Serra
2020-03-02T11:02:21Z

From: Matthias Brugger <mbrugger@suse.com>

It can happen that the mmsys clock drivers aren't probed before the
platform driver gets invoked. The platform driver used to print a warning
that the driver failed to get the clocks. Omit this error on
the defered probe path.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

Changes in v11: None
Changes in v10: None
Changes in v9: None
Changes in v8: None
Changes in v7: None

drivers/gpu/drm/mediatek/mtk_disp_color.c | 5 ++++-
drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 5 ++++-
drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 5 ++++-
drivers/gpu/drm/mediatek/mtk_dpi.c | 12 +++++++++---
drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 3 ++-
drivers/gpu/drm/mediatek/mtk_dsi.c | 8 ++++++--
drivers/gpu/drm/mediatek/mtk_hdmi.c | 4 +++-
7 files changed, 32 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c
index 6fb0d6983a4a..3ae9c810845b 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_color.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c
@@ -119,7 +119,10 @@ static int mtk_disp_color_probe(struct platform_device *pdev)
ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
&mtk_disp_color_funcs);
if (ret) {
- dev_err(dev, "Failed to initialize component: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to initialize component: %d\n",
+ ret);
+
return ret;
}

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 891d80c73e04..28651bc579bc 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -386,7 +386,10 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev)
ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
&mtk_disp_ovl_funcs);
if (ret) {
- dev_err(dev, "Failed to initialize component: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to initialize component: %d\n",
+ ret);
+
return ret;
}

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 0cb848d64206..e04319fedf46 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -294,7 +294,10 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev)
ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
&mtk_disp_rdma_funcs);
if (ret) {
- dev_err(dev, "Failed to initialize component: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to initialize component: %d\n",
+ ret);
+
return ret;
}

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 01fa8b8d763d..1b219edef541 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -701,21 +701,27 @@ static int mtk_dpi_probe(struct platform_device *pdev)
dpi->engine_clk = devm_clk_get(dev, "engine");
if (IS_ERR(dpi->engine_clk)) {
ret = PTR_ERR(dpi->engine_clk);
- dev_err(dev, "Failed to get engine clock: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get engine clock: %d\n", ret);
+
return ret;
}

dpi->pixel_clk = devm_clk_get(dev, "pixel");
if (IS_ERR(dpi->pixel_clk)) {
ret = PTR_ERR(dpi->pixel_clk);
- dev_err(dev, "Failed to get pixel clock: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get pixel clock: %d\n", ret);
+
return ret;
}

dpi->tvd_clk = devm_clk_get(dev, "pll");
if (IS_ERR(dpi->tvd_clk)) {
ret = PTR_ERR(dpi->tvd_clk);
- dev_err(dev, "Failed to get tvdpll clock: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get tvdpll clock: %d\n", ret);
+
return ret;
}

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index 13035c906035..b885f60f474c 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -628,7 +628,8 @@ static int mtk_ddp_probe(struct platform_device *pdev)
if (!ddp->data->no_clk) {
ddp->clk = devm_clk_get(dev, NULL);
if (IS_ERR(ddp->clk)) {
- dev_err(dev, "Failed to get clock\n");
+ if (PTR_ERR(ddp->clk) != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get clock\n");
return PTR_ERR(ddp->clk);
}
}
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 5fa1073cf26b..a45ed0270531 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -1194,14 +1194,18 @@ static int mtk_dsi_probe(struct platform_device *pdev)
dsi->engine_clk = devm_clk_get(dev, "engine");
if (IS_ERR(dsi->engine_clk)) {
ret = PTR_ERR(dsi->engine_clk);
- dev_err(dev, "Failed to get engine clock: %d\n", ret);
+
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get engine clock: %d\n", ret);
goto err_unregister_host;
}

dsi->digital_clk = devm_clk_get(dev, "digital");
if (IS_ERR(dsi->digital_clk)) {
ret = PTR_ERR(dsi->digital_clk);
- dev_err(dev, "Failed to get digital clock: %d\n", ret);
+
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get digital clock: %d\n", ret);
goto err_unregister_host;
}

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 5e4a4dbda443..69c6a146c561 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1451,7 +1451,9 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,

ret = mtk_hdmi_get_all_clk(hdmi, np);
if (ret) {
- dev_err(dev, "Failed to get clocks: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get clocks: %d\n", ret);
+
return ret;
}

--
2.25.1