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drm/exynos: hdmi: take i2c adapter module reference

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The i2c subsystem currently blocks during adapter deregistration
whenever there are consumers holding a reference.

Switch to using of_get_i2c_adapter_by_node() which also takes a
reference to the adapter module so that an attempt to unload the module
while in use fails gracefully instead of blocking uninterruptibly.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Johan Hovold 2026-07-16 15:18:02 +02:00 committed by Inki Dae
parent 51f556d630
commit 99b1947ba2
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GPG Key ID: C5601BECE83FF9B6
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/exynos/exynos_hdmi.c
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@ -1923,7 +1923,7 @@ static int hdmi_get_ddc_adapter(struct hdmi_context *hdata)
return -ENODEV;
}
adpt = of_find_i2c_adapter_by_node(np);
adpt = of_get_i2c_adapter_by_node(np);
of_node_put(np);
if (!adpt) {
@ -2079,7 +2079,7 @@ static int hdmi_probe(struct platform_device *pdev)
if (hdata->regs_hdmiphy)
iounmap(hdata->regs_hdmiphy);
err_ddc:
put_device(&hdata->ddc_adpt->dev);
i2c_put_adapter(hdata->ddc_adpt);
return ret;
}
@ -2104,7 +2104,7 @@ static void hdmi_remove(struct platform_device *pdev)
if (hdata->regs_hdmiphy)
iounmap(hdata->regs_hdmiphy);
put_device(&hdata->ddc_adpt->dev);
i2c_put_adapter(hdata->ddc_adpt);
drm_bridge_put(hdata->bridge);