From: Biju Das <biju.das.jz@bp.renesas.com>
Date: Sun, 21 Sep 2025 11:26:46 +0000 (+0100)
Subject: spi: rpc-if: Add resume support for RZ/G3E
X-Git-Tag: v6.17.8~653
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bf1588cd4280f911716860513707eb6a7da7ba3a;p=thirdparty%2Fkernel%2Fstable.git

spi: rpc-if: Add resume support for RZ/G3E

[ Upstream commit ad4728740bd68d74365a43acc25a65339a9b2173 ]

On RZ/G3E using PSCI, s2ram powers down the SoC. After resume,
reinitialize the hardware for SPI operations.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20250921112649.104516-3-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/spi/spi-rpc-if.c b/drivers/spi/spi-rpc-if.c
index 627cffea5d5c7..300a7c10b3d40 100644
--- a/drivers/spi/spi-rpc-if.c
+++ b/drivers/spi/spi-rpc-if.c
@@ -207,6 +207,8 @@ static int __maybe_unused rpcif_spi_resume(struct device *dev)
 {
 	struct spi_controller *ctlr = dev_get_drvdata(dev);
 
+	rpcif_hw_init(dev, false);
+
 	return spi_controller_resume(ctlr);
 }