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0cdffb29b0
* Change DEV to EDGE * Renaming patches dev folder to edge * Move patches into subdir where they will be archived. * Relink patch directories properly
69 lines
2.4 KiB
Text
69 lines
2.4 KiB
Text
From f11388785b09c4685a14303f0961f2bed875ab88 Mon Sep 17 00:00:00 2001
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From: Artem Lapkin <art@khadas.com>
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Date: Wed, 24 Feb 2021 12:12:53 +0000
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Subject: [PATCH 21/58] FROMLIST(v1): drm/meson: add shutdown function to
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meson_drv
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Problem: random stucks on reboot stage about 1/20 stuck/reboots
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// debug kernel log
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[ 4.496660] reboot: kernel restart prepare CMD:(null)
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[ 4.498114] meson_ee_pwrc c883c000.system-controller:power-controller: shutdown begin
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[ 4.503949] meson_ee_pwrc c883c000.system-controller:power-controller: shutdown domain 0:VPU...
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...STUCK...
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Solution: add shutdown function to meson_drm driver
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// debug kernel log
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[ 5.231896] reboot: kernel restart prepare CMD:(null)
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[ 5.246135] [drm:meson_drv_shutdown]
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...
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[ 5.259271] meson_ee_pwrc c883c000.system-controller:power-controller: shutdown begin
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[ 5.274688] meson_ee_pwrc c883c000.system-controller:power-controller: shutdown domain 0:VPU...
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[ 5.338331] reboot: Restarting system
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[ 5.358293] psci: PSCI_0_2_FN_SYSTEM_RESET reboot_mode:0 cmd:(null)
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bl31 reboot reason: 0xd
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bl31 reboot reason: 0x0
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system cmd 1.
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...REBOOT...
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Tested: on VIM1 VIM2 VIM3 VIM3L khadas sbcs - 1000+ successful reboots
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and Odroid boards, WeTek Play2 (GXBB)
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Tested-by: Christian Hewitt <christianshewitt@gmail.com>
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Signed-off-by: Artem Lapkin <art@khadas.com>
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---
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drivers/gpu/drm/meson/meson_drv.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
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index 42c5d3246cfc..ac3808e846ff 100644
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--- a/drivers/gpu/drm/meson/meson_drv.c
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+++ b/drivers/gpu/drm/meson/meson_drv.c
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@@ -482,6 +482,17 @@ static int meson_probe_remote(struct platform_device *pdev,
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return count;
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}
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+static void meson_drv_shutdown(struct platform_device *pdev)
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+{
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+ struct meson_drm *priv = dev_get_drvdata(&pdev->dev);
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+ struct drm_device *drm = priv->drm;
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+
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+ dev_warn(&pdev->dev, "%s", __func__);
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+ //drm_dev_unregister(drm);
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+ drm_kms_helper_poll_fini(drm);
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+ drm_atomic_helper_shutdown(drm);
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+}
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+
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static int meson_drv_probe(struct platform_device *pdev)
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{
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struct component_match *match = NULL;
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@@ -553,6 +564,7 @@ static const struct dev_pm_ops meson_drv_pm_ops = {
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static struct platform_driver meson_drm_platform_driver = {
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.probe = meson_drv_probe,
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+ .shutdown = meson_drv_shutdown,
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.driver = {
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.name = "meson-drm",
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.of_match_table = dt_match,
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--
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2.25.1
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