From 50a212ec906f7524620675f0c57357691c26c81f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 16 Oct 2024 01:20:19 +0000
Subject: [PATCH] 修改GPIO导出默认初始值
---
kernel/drivers/char/hw_random/nomadik-rng.c | 12 +++---------
1 files changed, 3 insertions(+), 9 deletions(-)
diff --git a/kernel/drivers/char/hw_random/nomadik-rng.c b/kernel/drivers/char/hw_random/nomadik-rng.c
index e8f9621..3774adf 100644
--- a/kernel/drivers/char/hw_random/nomadik-rng.c
+++ b/kernel/drivers/char/hw_random/nomadik-rng.c
@@ -13,8 +13,6 @@
#include <linux/clk.h>
#include <linux/err.h>
-static struct clk *rng_clk;
-
static int nmk_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
{
void __iomem *base = (void __iomem *)rng->priv;
@@ -36,21 +34,20 @@
static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id)
{
+ struct clk *rng_clk;
void __iomem *base;
int ret;
- rng_clk = devm_clk_get(&dev->dev, NULL);
+ rng_clk = devm_clk_get_enabled(&dev->dev, NULL);
if (IS_ERR(rng_clk)) {
dev_err(&dev->dev, "could not get rng clock\n");
ret = PTR_ERR(rng_clk);
return ret;
}
- clk_prepare_enable(rng_clk);
-
ret = amba_request_regions(dev, dev->dev.init_name);
if (ret)
- goto out_clk;
+ return ret;
ret = -ENOMEM;
base = devm_ioremap(&dev->dev, dev->res.start,
resource_size(&dev->res));
@@ -64,15 +61,12 @@
out_release:
amba_release_regions(dev);
-out_clk:
- clk_disable_unprepare(rng_clk);
return ret;
}
static void nmk_rng_remove(struct amba_device *dev)
{
amba_release_regions(dev);
- clk_disable_unprepare(rng_clk);
}
static const struct amba_id nmk_rng_ids[] = {
--
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