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drm/omap: hdmi4: Ensure the device is active during bind 

The bind function performs hardware access (in hdmi4_cec_init()) and
thus requires the device to be active. Ensure this by surrounding the
bind function by hdmi_runtime_get() and hdmi_runtime_put() calls.

Fixes: 27d624527d ("drm/omap: dss: Acquire next dssdev at probe time")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181110111654.4387-3-laurent.pinchart@ideasonboard.com
This commit is contained in:
Laurent Pinchart 2018-11-10 13:16:52 +02:00 committed by Tomi Valkeinen
parent e0c827aca0
commit f8523b64d2
1 changed files with 9 additions and 1 deletions
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10
drivers/gpu/drm/omapdrm/dss/hdmi4.c
View File

@ -635,10 +635,14 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
hdmi->dss = dss;
r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
r = hdmi_runtime_get(hdmi);
if (r)
return r;
r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
if (r)
goto err_runtime_put;
r = hdmi4_cec_init(hdmi->pdev, &hdmi->core, &hdmi->wp);
if (r)
goto err_pll_uninit;
@ -652,12 +656,16 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
hdmi);
hdmi_runtime_put(hdmi);
return 0;
err_cec_uninit:
hdmi4_cec_uninit(&hdmi->core);
err_pll_uninit:
hdmi_pll_uninit(&hdmi->pll);
err_runtime_put:
hdmi_runtime_put(hdmi);
return r;
}