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path: root/target/linux/bmips/patches-5.10/041-v5.12-spi-bcm63xx-spi-fix-pm_runtime.patch
blob: 3fe7a552cd52518c561621da892509dd1ee33fa6 (plain)
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From 73ae625da5c36300fccd809738e7c68f49ebce35 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
Date: Tue, 23 Feb 2021 16:18:50 +0100
Subject: [PATCH 1/2] spi: bcm63xx-spi: fix pm_runtime
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The driver sets auto_runtime_pm to true, but it doesn't call
pm_runtime_enable(), which results in "Failed to power device" when PM support
is enabled.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Link: https://lore.kernel.org/r/20210223151851.4110-2-noltari@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 drivers/spi/spi-bcm63xx.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -593,11 +593,13 @@ static int bcm63xx_spi_probe(struct plat
 
 	bcm_spi_writeb(bs, SPI_INTR_CLEAR_ALL, SPI_INT_STATUS);
 
+	pm_runtime_enable(&pdev->dev);
+
 	/* register and we are done */
 	ret = devm_spi_register_master(dev, master);
 	if (ret) {
 		dev_err(dev, "spi register failed\n");
-		goto out_clk_disable;
+		goto out_pm_disable;
 	}
 
 	dev_info(dev, "at %pr (irq %d, FIFOs size %d)\n",
@@ -605,6 +607,8 @@ static int bcm63xx_spi_probe(struct plat
 
 	return 0;
 
+out_pm_disable:
+	pm_runtime_disable(&pdev->dev);
 out_clk_disable:
 	clk_disable_unprepare(clk);
 out_err: