From 645e752c5a84baeb21015cdc85fc05b7d16312c8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 01:13:52 +0000
Subject: [PATCH] disable i2c1
---
kernel/drivers/spi/spi-cadence-quadspi.c | 19 ++++++++++++++++---
1 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/kernel/drivers/spi/spi-cadence-quadspi.c b/kernel/drivers/spi/spi-cadence-quadspi.c
index 2e1255b..23d50a1 100644
--- a/kernel/drivers/spi/spi-cadence-quadspi.c
+++ b/kernel/drivers/spi/spi-cadence-quadspi.c
@@ -1355,17 +1355,30 @@
static int cqspi_suspend(struct device *dev)
{
struct cqspi_st *cqspi = dev_get_drvdata(dev);
+ struct spi_master *master = dev_get_drvdata(dev);
+ int ret;
+ ret = spi_master_suspend(master);
cqspi_controller_enable(cqspi, 0);
- return 0;
+
+ clk_disable_unprepare(cqspi->clk);
+
+ return ret;
}
static int cqspi_resume(struct device *dev)
{
struct cqspi_st *cqspi = dev_get_drvdata(dev);
+ struct spi_master *master = dev_get_drvdata(dev);
- cqspi_controller_enable(cqspi, 1);
- return 0;
+ clk_prepare_enable(cqspi->clk);
+ cqspi_wait_idle(cqspi);
+ cqspi_controller_init(cqspi);
+
+ cqspi->current_cs = -1;
+ cqspi->sclk = 0;
+
+ return spi_master_resume(master);
}
static const struct dev_pm_ops cqspi__dev_pm_ops = {
--
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