2020-05-27 13:12:04 +00:00
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From ba875ce27cd407bc61502517671623df07bb6c1a Mon Sep 17 00:00:00 2001
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From: James Hilliard <james.hilliard1@gmail.com>
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Date: Fri, 10 Apr 2020 19:24:40 -0600
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Subject: [PATCH] drm/vc4: hdmi: Silence pixel clock error on
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-EPROBE_DEFER
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If the vc4 hdmi driver loads before the pixel clock is available we
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see a spurious "*ERROR* Failed to get pixel clock" error.
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Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
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---
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drivers/gpu/drm/vc4/vc4_hdmi.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
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+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
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2020-10-01 13:22:00 +00:00
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@@ -1494,8 +1494,10 @@ static int vc4_hdmi_init_resources(struc
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2020-05-27 13:12:04 +00:00
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vc4_hdmi->pixel_clock = devm_clk_get(dev, "pixel");
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if (IS_ERR(vc4_hdmi->pixel_clock)) {
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- DRM_ERROR("Failed to get pixel clock\n");
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- return PTR_ERR(vc4_hdmi->pixel_clock);
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+ ret = PTR_ERR(vc4_hdmi->pixel_clock);
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+ if (ret != -EPROBE_DEFER)
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+ DRM_ERROR("Failed to get pixel clock\n");
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+ return ret;
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}
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vc4_hdmi->hsm_clock = devm_clk_get(dev, "hdmi");
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