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Sun, 08 Nov 2026 12:49:20 -0800 (PST) Received: from laptop.home ([2a01:110f:4f01:4800:421a:58ff:fedf:2e2a]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4b90ee2b8c0sm94217595e9.9.2026.11.08.12.49.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Nov 2026 12:49:19 -0800 (PST) From: Konstantin Pospelov To: Shyam Sundar S K , Hans de Goede , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Konstantin Pospelov Subject: [PATCH] platform/x86/amd/pmc: Delay suspend for HP EliteBook 845 G10 Date: Sun, 8 Nov 2026 21:48:52 +0100 Message-ID: <20261108204852.11194-1-kupospelov@gmail.com> X-Mailer: git-send-email 2.56.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On the HP EliteBook 845 G10 (Ryzen 7 7840U), the CPU stays stuck at 544 MHz after resume from s2idle. Delaying suspend avoids this. Tested with and without the patch over 6 cycles: 1. Suspend. 2. Connect the charger. 3. Resume. The issue was reproduced 3 times, and was not reproducible 3 times with the patch. Link: https://bugzilla.kernel.org/show_bug.cgi?id=218557 Signed-off-by: Konstantin Pospelov --- drivers/platform/x86/amd/pmc/pmc-quirks.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/platform/x86/amd/pmc/pmc-quirks.c b/drivers/platform/x86/amd/pmc/pmc-quirks.c index fed6c51879fc..037bb575870f 100644 --- a/drivers/platform/x86/amd/pmc/pmc-quirks.c +++ b/drivers/platform/x86/amd/pmc/pmc-quirks.c @@ -297,6 +297,15 @@ static const struct dmi_system_id fwbug_list[] = { DMI_MATCH(DMI_PRODUCT_NAME, "83N1"), } }, + /* https://bugzilla.kernel.org/show_bug.cgi?id=218557 */ + { + .ident = "HP EliteBook 845 G10", + .driver_data = &quirk_s2idle_need_suspend_delay, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HP"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook 845 14 inch G10 Notebook PC"), + } + }, { .ident = "HP Laptop 14-fq1xxx", .driver_data = &quirk_s2idle_spurious_8042, -- 2.56.0