From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Dmitry Osipenko <digetx@gmail.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Thierry Reding <treding@nvidia.com>,
Sasha Levin <sashal@kernel.org>,
rjw@rjwysocki.net, swarren@wwwdotorg.org,
thierry.reding@gmail.com, gnurou@gmail.com,
linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 32/50] cpuidle: tegra: Check whether PMC is ready
Date: Tue, 9 Nov 2021 17:20:45 -0500 [thread overview]
Message-ID: <20211109222103.1234885-32-sashal@kernel.org> (raw)
In-Reply-To: <20211109222103.1234885-1-sashal@kernel.org>
From: Dmitry Osipenko <digetx@gmail.com>
[ Upstream commit bdb1ffdad3b73e4d0538098fc02e2ea87a6b27cd ]
Check whether PMC is ready before proceeding with the cpuidle registration.
This fixes racing with the PMC driver probe order, which results in a
disabled deepest CC6 idling state if cpuidle driver is probed before the
PMC.
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/cpuidle/cpuidle-tegra.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/cpuidle/cpuidle-tegra.c b/drivers/cpuidle/cpuidle-tegra.c
index 29c5e83500d33..e6f96d272d240 100644
--- a/drivers/cpuidle/cpuidle-tegra.c
+++ b/drivers/cpuidle/cpuidle-tegra.c
@@ -346,6 +346,9 @@ static void tegra_cpuidle_setup_tegra114_c7_state(void)
static int tegra_cpuidle_probe(struct platform_device *pdev)
{
+ if (tegra_pmc_get_suspend_mode() == TEGRA_SUSPEND_NOT_READY)
+ return -EPROBE_DEFER;
+
/* LP2 could be disabled in device-tree */
if (tegra_pmc_get_suspend_mode() < TEGRA_SUSPEND_LP2)
tegra_cpuidle_disable_state(TEGRA_CC6);
--
2.33.0
next prev parent reply other threads:[~2021-11-09 22:34 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-09 22:20 [PATCH AUTOSEL 5.10 01/50] arm64: zynqmp: Do not duplicate flash partition label property Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 02/50] arm64: zynqmp: Fix serial compatible string Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 03/50] ARM: dts: sunxi: Fix OPPs node name Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 04/50] arm64: dts: allwinner: h5: Fix GPU thermal zone " Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 05/50] arm64: dts: allwinner: a100: Fix " Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 06/50] staging: wfx: ensure IRQ is ready before enabling it Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 07/50] ARM: dts: NSP: Fix mpcore, mmc node names Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 08/50] scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq() Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 09/50] arm64: dts: rockchip: Disable CDN DP on Pinebook Pro Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 10/50] arm64: dts: hisilicon: fix arm,sp805 compatible string Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 11/50] arm64: dts: rockchip: add Coresight debug range for RK3399 Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 12/50] RDMA/bnxt_re: Check if the vlan is valid before reporting Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 13/50] bus: ti-sysc: Add quirk handling for reinit on context lost Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 14/50] bus: ti-sysc: Use context lost quirks for gpmc Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 15/50] bus: ti-sysc: Use context lost quirk for otg Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 16/50] usb: musb: tusb6010: check return value after calling platform_get_resource() Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 17/50] usb: typec: tipd: Remove WARN_ON in tps6598x_block_read Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 18/50] ARM: dts: ux500: Skomer regulator fixes Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 19/50] staging: rtl8723bs: remove possible deadlock when disconnect (v2) Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 20/50] ARM: BCM53016: Specify switch ports for Meraki MR32 Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 21/50] arm64: dts: qcom: msm8998: Fix CPU/L2 idle state latency and residency Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 22/50] arm64: dts: qcom: ipq6018: Fix qcom,controlled-remotely property Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 23/50] arm64: dts: qcom: msm8916: Add unit name for /soc node Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 24/50] arm64: dts: freescale: fix arm,sp805 compatible string Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 25/50] ASoC: SOF: Intel: hda-dai: fix potential locking issue Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 26/50] clk: imx: imx6ul: Move csi_sel mux to correct base register Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 27/50] ASoC: nau8824: Add DMI quirk mechanism for active-high jack-detect Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 28/50] scsi: advansys: Fix kernel pointer leak Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 29/50] ALSA: intel-dsp-config: add quirk for APL/GLK/TGL devices based on ES8336 codec Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 30/50] ASoC: Intel: sof_sdw: add missing quirk for Dell SKU 0A45 Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 31/50] firmware_loader: fix pre-allocated buf built-in firmware use Sasha Levin
2021-11-09 22:20 ` Sasha Levin [this message]
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 33/50] ARM: dts: omap: fix gpmc,mux-add-data type Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 34/50] usb: host: ohci-tmio: check return value after calling platform_get_resource() Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 35/50] ARM: dts: ls1021a: move thermal-zones node out of soc/ Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 36/50] ARM: dts: ls1021a-tsn: use generic "jedec,spi-nor" compatible for flash Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 37/50] ALSA: ISA: not for M68K Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 38/50] tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 39/50] MIPS: sni: Fix the build Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 40/50] scsi: scsi_debug: Fix out-of-bound read in resp_readcap16() Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 41/50] scsi: scsi_debug: Fix out-of-bound read in resp_report_tgtpgs() Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 42/50] scsi: target: Fix ordered tag handling Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 43/50] scsi: target: Fix alua_tg_pt_gps_count tracking Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 44/50] iio: imu: st_lsm6dsx: Avoid potential array overflow in st_lsm6dsx_set_odr() Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 45/50] powerpc/5200: dts: fix memory node unit name Sasha Levin
2021-11-09 22:20 ` [PATCH AUTOSEL 5.10 46/50] arm64: dts: qcom: msm8916: Add CPU ACC and SAW/SPM Sasha Levin
2021-11-09 22:21 ` [PATCH AUTOSEL 5.10 47/50] ARM: dts: qcom: fix memory and mdio nodes naming for RB3011 Sasha Levin
2021-11-09 22:21 ` [PATCH AUTOSEL 5.10 48/50] ALSA: gus: fix null pointer dereference on pointer block Sasha Levin
2021-11-09 22:21 ` [PATCH AUTOSEL 5.10 49/50] powerpc/dcr: Use cmplwi instead of 3-argument cmpli Sasha Levin
2021-11-09 22:21 ` [PATCH AUTOSEL 5.10 50/50] powerpc/8xx: Fix Oops with STRICT_KERNEL_RWX without DEBUG_RODATA_TEST Sasha Levin
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