From: Thomas Richard <thomas.richard@bootlin.com>
To: "Linus Walleij" <linus.walleij@linaro.org>,
"Bartosz Golaszewski" <brgl@bgdev.pl>,
"Tony Lindgren" <tony@atomide.com>,
"Aaro Koskinen" <aaro.koskinen@iki.fi>,
"Janusz Krzysztofik" <jmkrzyszt@gmail.com>,
"Vignesh R" <vigneshr@ti.com>,
"Andi Shyti" <andi.shyti@kernel.org>,
"Peter Rosin" <peda@axentia.se>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Siddharth Vadapalli" <s-vadapalli@ti.com>
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
gregory.clement@bootlin.com, theo.lebrun@bootlin.com,
thomas.petazzoni@bootlin.com, u-kumar1@ti.com,
Thomas Richard <thomas.richard@bootlin.com>
Subject: [PATCH v5 04/11] mux: mmio: add resume support
Date: Tue, 16 Apr 2024 15:29:53 +0200 [thread overview]
Message-ID: <20240102-j7200-pcie-s2r-v5-4-4b8c46711ded@bootlin.com> (raw)
In-Reply-To: <20240102-j7200-pcie-s2r-v5-0-4b8c46711ded@bootlin.com>
From: Théo Lebrun <theo.lebrun@bootlin.com>
No need to save something during the suspend stage, as the mux core has an
internal cache to store the state of muxes.
This cache is used by mux_chip_resume() to restore all muxes.
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
---
drivers/mux/mmio.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/mux/mmio.c b/drivers/mux/mmio.c
index 30a952c34365..00405abe3ce3 100644
--- a/drivers/mux/mmio.c
+++ b/drivers/mux/mmio.c
@@ -130,13 +130,25 @@ static int mux_mmio_probe(struct platform_device *pdev)
mux_chip->ops = &mux_mmio_ops;
+ dev_set_drvdata(dev, mux_chip);
+
return devm_mux_chip_register(dev, mux_chip);
}
+static int mux_mmio_resume_noirq(struct device *dev)
+{
+ struct mux_chip *mux_chip = dev_get_drvdata(dev);
+
+ return mux_chip_resume(mux_chip);
+}
+
+static DEFINE_NOIRQ_DEV_PM_OPS(mux_mmio_pm_ops, NULL, mux_mmio_resume_noirq);
+
static struct platform_driver mux_mmio_driver = {
.driver = {
.name = "mmio-mux",
.of_match_table = mux_mmio_dt_ids,
+ .pm = pm_sleep_ptr(&mux_mmio_pm_ops),
},
.probe = mux_mmio_probe,
};
--
2.39.2
next prev parent reply other threads:[~2024-04-16 13:30 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-16 13:29 [PATCH v5 00/11] Add suspend to ram support for PCIe on J7200 Thomas Richard
2024-04-16 13:29 ` [PATCH v5 01/11] gpio: pca953x: move suspend()/resume() to suspend_noirq()/resume_noirq() Thomas Richard
2024-04-23 9:42 ` Geert Uytterhoeven
2024-04-23 10:34 ` Andy Shevchenko
2024-04-23 10:53 ` Thomas Richard
2024-04-23 15:31 ` Geert Uytterhoeven
2024-04-16 13:29 ` [PATCH v5 02/11] i2c: omap: wakeup the controller during suspend() callback Thomas Richard
2024-04-19 8:47 ` Andi Shyti
2024-04-22 9:40 ` Thomas Richard
2024-04-22 19:44 ` Bjorn Helgaas
2024-04-24 10:24 ` Thomas Richard
2024-04-16 13:29 ` [PATCH v5 03/11] mux: add mux_chip_resume() function Thomas Richard
2024-04-16 13:29 ` Thomas Richard [this message]
2024-04-16 13:29 ` [PATCH v5 05/11] PCI: cadence: Extract link setup sequence from cdns_pcie_host_setup() Thomas Richard
2024-04-16 14:16 ` Dan Carpenter
2024-04-16 16:01 ` Thomas Richard
2024-05-14 13:15 ` Thomas Richard
2024-05-15 7:05 ` Dan Carpenter
2024-04-16 13:29 ` [PATCH v5 06/11] PCI: cadence: Set cdns_pcie_host_init() global Thomas Richard
2024-04-16 13:29 ` [PATCH v5 07/11] PCI: j721e: Use dev_err_probe() in the probe() function Thomas Richard
2024-04-16 13:29 ` [PATCH v5 08/11] PCI: j721e: Add reset GPIO to struct j721e_pcie Thomas Richard
2024-04-16 13:29 ` [PATCH v5 09/11] PCI: Add T_PERST_CLK_US macro Thomas Richard
2024-04-16 13:29 ` [PATCH v5 10/11] PCI: j721e: Use " Thomas Richard
2024-04-16 13:30 ` [PATCH v5 11/11] PCI: j721e: Add suspend and resume support Thomas Richard
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