Fix RPI compilation

6.1/target/linux/bcm27xx/patches-6.1/950-0599-Revert-hwrng-bcm2835-use-hwrng_msleep-instead-of-cpu.patch

@@ -1,26 +0,0 @@
-From b79ceb0a74c81774308f083c9d543b82fc9e4825 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.com>
-Date: Tue, 21 Mar 2023 16:43:22 +0000
-Subject: [PATCH] Revert "hwrng: bcm2835 - use hwrng_msleep() instead of
- cpu_relax()"
-
-This reverts commit 96cb9d0554457086664d3bd10630b11193d863f1.
-
-See: https://github.com/raspberrypi/linux/issues/5390
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.com>
----
- drivers/char/hw_random/bcm2835-rng.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/drivers/char/hw_random/bcm2835-rng.c
-+++ b/drivers/char/hw_random/bcm2835-rng.c
-@@ -71,7 +71,7 @@ static int bcm2835_rng_read(struct hwrng
- 	while ((rng_readl(priv, RNG_STATUS) >> 24) == 0) {
- 		if (!wait)
- 			return 0;
--		hwrng_msleep(rng, 1000);
-+		cpu_relax();
- 	}
- 
- 	num_words = rng_readl(priv, RNG_STATUS) >> 24;

6.1/target/linux/bcm27xx/patches-6.1/950-0605-Revert-Revert-hwrng-bcm2835-use-hwrng_msleep-instead.patch

@@ -1,24 +0,0 @@
-From 0d41e5de102d1a77fb0e027c2598258c4e220ec0 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.com>
-Date: Wed, 22 Mar 2023 15:47:30 +0000
-Subject: [PATCH] Revert "Revert "hwrng: bcm2835 - use hwrng_msleep() instead
- of cpu_relax()""
-
-This reverts commit a9d98e9f7d84d7d66b02fdae9c37b19cd516c894.
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.com>
----
- drivers/char/hw_random/bcm2835-rng.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/drivers/char/hw_random/bcm2835-rng.c
-+++ b/drivers/char/hw_random/bcm2835-rng.c
-@@ -71,7 +71,7 @@ static int bcm2835_rng_read(struct hwrng
- 	while ((rng_readl(priv, RNG_STATUS) >> 24) == 0) {
- 		if (!wait)
- 			return 0;
--		cpu_relax();
-+		hwrng_msleep(rng, 1000);
- 	}
- 
- 	num_words = rng_readl(priv, RNG_STATUS) >> 24;

6.1/target/linux/bcm27xx/patches-6.1/950-0606-hwrng-bcm2835-sleep-more-intelligently.patch

@@ -1,66 +0,0 @@
-From 52e517bf8e7c3e92aa760a624732ff589bd30201 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.com>
-Date: Wed, 22 Mar 2023 15:30:38 +0000
-Subject: [PATCH] hwrng: bcm2835 - sleep more intelligently
-
-While waiting for random data, use sleeps that are proportional
-to the amount of data expected. Prevent indefinite waits by
-giving up if nothing is received for a second.
-
-See: https://github.com/raspberrypi/linux/issues/5390
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.com>
----
- drivers/char/hw_random/bcm2835-rng.c | 20 ++++++++++++++------
- 1 file changed, 14 insertions(+), 6 deletions(-)
-
---- a/drivers/char/hw_random/bcm2835-rng.c
-+++ b/drivers/char/hw_random/bcm2835-rng.c
-@@ -14,6 +14,7 @@
- #include <linux/printk.h>
- #include <linux/clk.h>
- #include <linux/reset.h>
-+#include <linux/delay.h>
- 
- #define RNG_CTRL	0x0
- #define RNG_STATUS	0x4
-@@ -28,6 +29,9 @@
- 
- #define RNG_INT_OFF	0x1
- 
-+#define RNG_FIFO_WORDS	4
-+#define RNG_US_PER_WORD	34 /* Tuned for throughput */
-+
- struct bcm2835_rng_priv {
- 	struct hwrng rng;
- 	void __iomem *base;
-@@ -64,19 +68,23 @@ static inline void rng_writel(struct bcm
- static int bcm2835_rng_read(struct hwrng *rng, void *buf, size_t max,
- 			       bool wait)
- {
-+	u32 retries = 1000000/(RNG_FIFO_WORDS * RNG_US_PER_WORD);
- 	struct bcm2835_rng_priv *priv = to_rng_priv(rng);
- 	u32 max_words = max / sizeof(u32);
- 	u32 num_words, count;
- 
--	while ((rng_readl(priv, RNG_STATUS) >> 24) == 0) {
--		if (!wait)
-+	num_words = rng_readl(priv, RNG_STATUS) >> 24;
-+
-+	while (!num_words) {
-+		if (!wait || !retries)
- 			return 0;
--		hwrng_msleep(rng, 1000);
-+		retries--;
-+		usleep_range((u32)RNG_US_PER_WORD,
-+			     (u32)RNG_US_PER_WORD * RNG_FIFO_WORDS);
-+		num_words = rng_readl(priv, RNG_STATUS) >> 24;
- 	}
- 
--	num_words = rng_readl(priv, RNG_STATUS) >> 24;
--	if (num_words > max_words)
--		num_words = max_words;
-+	num_words = min(num_words, max_words);
- 
- 	for (count = 0; count < num_words; count++)
- 		((u32 *)buf)[count] = rng_readl(priv, RNG_DATA);