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CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB03.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(36860700013)(376014)(1800799024)(82310400026); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2025 05:41:40.8500 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2702db0d-2b14-4d7f-dd3a-08dda973ce98 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF00022571.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6078 Implement shutdown hook to ensure proper host shutdown by using sdhci platform suspend. This ensure a safe transition when the Kexec utility calls the shutdown hook, facilitating seamless loading and booting of a new kernel from the currently running one. Signed-off-by: Paul Alvin --- Changes in v3: - Updated commit description. Changes in v2: - Make use of platform suspend instead of driver suspend as driver suspend will only get defined if PMC_SLEEP is configured which results in build failure if it is not configured. - Updated commit description. drivers/mmc/host/sdhci-of-arasan.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index 8c29676ab662..4abdad3c4e5b 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -2056,6 +2056,11 @@ static void sdhci_arasan_remove(struct platform_device *pdev) clk_disable_unprepare(clk_ahb); } +static void sdhci_arasan_shutdown(struct platform_device *pdev) +{ + sdhci_pltfm_suspend(&pdev->dev); +} + static struct platform_driver sdhci_arasan_driver = { .driver = { .name = "sdhci-arasan", @@ -2065,6 +2070,7 @@ static struct platform_driver sdhci_arasan_driver = { }, .probe = sdhci_arasan_probe, .remove = sdhci_arasan_remove, + .shutdown = sdhci_arasan_shutdown, }; module_platform_driver(sdhci_arasan_driver);