linux-kernel - [PATCH 2/2] spi: rpc-if: Add resume support for RZ/G3E

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Message-ID: <20250921112649.104516-3-biju.das.jz@bp.renesas.com>
Date: Sun, 21 Sep 2025 12:26:46 +0100
From: Biju Das <biju.das.jz@...renesas.com>
To: Mark Brown <broonie@...nel.org>
Cc: Biju Das <biju.das.jz@...renesas.com>,
	linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>,
	Biju Das <biju.das.au@...il.com>,
	linux-renesas-soc@...r.kernel.org
Subject: [PATCH 2/2] spi: rpc-if: Add resume support for RZ/G3E

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@...renesas.com>
---
 drivers/spi/spi-rpc-if.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-rpc-if.c b/drivers/spi/spi-rpc-if.c
index a8e783cc66e7..6edc0c4db854 100644
--- a/drivers/spi/spi-rpc-if.c
+++ b/drivers/spi/spi-rpc-if.c
@@ -207,6 +207,8 @@ static int rpcif_spi_resume(struct device *dev)
 {
 	struct spi_controller *ctlr = dev_get_drvdata(dev);
 
+	rpcif_hw_init(dev, false);
+
 	return spi_controller_resume(ctlr);
 }
 
-- 
2.43.0