Commit 40ed9629 authored Jan 21, 2020 by Etienne Carriere Committed by Mauro Carvalho Chehab Mar 12, 2020

media: platform: stm32: defer probe for auxiliary clock



Change stm32-cec driver to defer probe when auxiliary clock
"hdmi-cec" is registered in the system not has not been probed yet.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

parent a246b4d5

drivers/media/platform/stm32/stm32-cec.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -302,10 +302,14 @@ static int stm32_cec_probe(struct platform_device *pdev)
		}

		cec->clk_hdmi_cec = devm_clk_get(&pdev->dev, "hdmi-cec");
		if (IS_ERR(cec->clk_hdmi_cec) &&
		PTR_ERR(cec->clk_hdmi_cec) == -EPROBE_DEFER)
		return -EPROBE_DEFER;

		if (!IS_ERR(cec->clk_hdmi_cec)) {
		ret = clk_prepare(cec->clk_hdmi_cec);
		if (ret) {
		dev_err(&pdev->dev, "Unable to prepare hdmi-cec clock\n");
		dev_err(&pdev->dev, "Can't prepare hdmi-cec clock\n");
		return ret;
		}
		}

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