build/patch/kernel/archive/sunxi-5.15/patches.armbian/drv-spi-spi-sun4i.c-spi-bug-low-on-sck.patch

37 lines
1.1 KiB
Diff

From 6583d6315aef2cc09cbded67efc294824f7a72e9 Mon Sep 17 00:00:00 2001
From: The-going <48602507+The-going@users.noreply.github.com>
Date: Wed, 2 Feb 2022 14:16:31 +0300
Subject: [PATCH 09/50] drv:spi:spi-sun4i.c spi bug low on sck
---
drivers/spi/spi-sun4i.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-sun4i.c b/drivers/spi/spi-sun4i.c
index 1fdfc6e66..5404ab0b1 100644
--- a/drivers/spi/spi-sun4i.c
+++ b/drivers/spi/spi-sun4i.c
@@ -389,6 +389,7 @@ static int sun4i_spi_runtime_resume(struct device *dev)
struct spi_master *master = dev_get_drvdata(dev);
struct sun4i_spi *sspi = spi_master_get_devdata(master);
int ret;
+ u32 reg;
ret = clk_prepare_enable(sspi->hclk);
if (ret) {
@@ -401,9 +402,10 @@ static int sun4i_spi_runtime_resume(struct device *dev)
dev_err(dev, "Couldn't enable module clock\n");
goto err;
}
+ reg = sun4i_spi_read(sspi, SUN4I_CTL_REG);
sun4i_spi_write(sspi, SUN4I_CTL_REG,
- SUN4I_CTL_ENABLE | SUN4I_CTL_MASTER | SUN4I_CTL_TP);
+ reg | SUN4I_CTL_ENABLE | SUN4I_CTL_MASTER | SUN4I_CTL_TP);
return 0;
--
2.34.1