linux-kernel - [PATCH v3 9/9] spi: spi-s3c64xx: Turn on interrupts upon resume

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Message-Id: <20201002122243.26849-10-l.stelmach@samsung.com>
Date:   Fri,  2 Oct 2020 14:22:43 +0200
From:   Łukasz Stelmach <l.stelmach@...sung.com>
To:     Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Andi Shyti <andi@...zian.org>, Mark Brown <broonie@...nel.org>,
        linux-spi@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Bartłomiej Żołnierkiewicz 
        <b.zolnierkie@...sung.com>,
        Łukasz Stelmach <l.stelmach@...sung.com>
Subject: [PATCH v3 9/9] spi: spi-s3c64xx: Turn on interrupts upon resume

s3c64xx_spi_hwinit() disables interrupts. In s3c64xx_spi_probe() after
calling s3c64xx_spi_hwinit() they are enabled with the following call.

Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>
Signed-off-by: Łukasz Stelmach <l.stelmach@...sung.com>
---
 drivers/spi/spi-s3c64xx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 9f728a7c59a1..dfa7c91e13aa 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1378,6 +1378,10 @@ static int s3c64xx_spi_runtime_resume(struct device *dev)
 
 	s3c64xx_spi_hwinit(sdd);
 
+	writel(S3C64XX_SPI_INT_RX_OVERRUN_EN | S3C64XX_SPI_INT_RX_UNDERRUN_EN |
+	       S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN,
+	       sdd->regs + S3C64XX_SPI_INT_EN);
+
 	return 0;
 
 err_disable_src_clk:
-- 
2.26.2