2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
From cededb2870ab15fcf79f063a83f5f37421e5bdfc Mon Sep 17 00:00:00 2001
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From: Peter Chen <peter.chen@nxp.com>
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Date: Tue, 5 Jul 2016 10:04:54 +0800
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Subject: [PATCH] gpu: drm: vc4_hdmi: add missing of_node_put after calling
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of_parse_phandle
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of_node_put needs to be called when the device node which is got
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from of_parse_phandle has finished using.
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Signed-off-by: Peter Chen <peter.chen@nxp.com>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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(cherry picked from commit 027a697677b0d5ff211773596d96f84078ceda80)
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---
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drivers/gpu/drm/vc4/vc4_hdmi.c | 13 +++++++------
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1 file changed, 7 insertions(+), 6 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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@@ -467,12 +467,6 @@ static int vc4_hdmi_bind(struct device *
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if (IS_ERR(hdmi->hd_regs))
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return PTR_ERR(hdmi->hd_regs);
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- ddc_node = of_parse_phandle(dev->of_node, "ddc", 0);
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- if (!ddc_node) {
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- DRM_ERROR("Failed to find ddc node in device tree\n");
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- return -ENODEV;
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- }
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-
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hdmi->pixel_clock = devm_clk_get(dev, "pixel");
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if (IS_ERR(hdmi->pixel_clock)) {
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DRM_ERROR("Failed to get pixel clock\n");
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@@ -484,7 +478,14 @@ static int vc4_hdmi_bind(struct device *
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return PTR_ERR(hdmi->hsm_clock);
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}
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+ ddc_node = of_parse_phandle(dev->of_node, "ddc", 0);
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+ if (!ddc_node) {
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+ DRM_ERROR("Failed to find ddc node in device tree\n");
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+ return -ENODEV;
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+ }
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+
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hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
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+ of_node_put(ddc_node);
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if (!hdmi->ddc) {
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DRM_DEBUG("Failed to get ddc i2c adapter by node\n");
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return -EPROBE_DEFER;
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