bcm27xx: remove linux 4.19 support

[openwrt/staging/wigyori.git] / target / linux / bcm27xx / patches-4.19 / 950-0136-hwmon-raspberrypi-Prevent-voltage-low-warnings-from-.patch

diff --git a/target/linux/bcm27xx/patches-4.19/950-0136-hwmon-raspberrypi-Prevent-voltage-low-warnings-from-.patch b/target/linux/bcm27xx/patches-4.19/950-0136-hwmon-raspberrypi-Prevent-voltage-low-warnings-from-.patch
deleted file mode 100644 (file)
index ea9846d..0000000
--- a/target/linux/bcm27xx/patches-4.19/950-0136-hwmon-raspberrypi-Prevent-voltage-low-warnings-from-.patch
+++ /dev/null
@@ -1,75 +0,0 @@
-From e7056be388c7bbc6f0211f587643ff795ce30814 Mon Sep 17 00:00:00 2001
-From: Stefan Wahren <stefan.wahren@i2se.com>
-Date: Sat, 6 Oct 2018 16:46:18 +0200
-Subject: [PATCH] hwmon: raspberrypi: Prevent voltage low warnings from
- filling log
-
-Although the correct fix for low voltage warnings is to
-improve the power supply, the current implementation
-of the detection can fill the log if the warning
-happens freqently. This replaces the logging with
-slightly custom ratelimited logging.
-
-Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
-Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
----
- drivers/hwmon/raspberrypi-hwmon.c | 41 ++++++++++++++++++++++++++++---
- 1 file changed, 37 insertions(+), 4 deletions(-)
-
---- a/drivers/hwmon/raspberrypi-hwmon.c
-+++ b/drivers/hwmon/raspberrypi-hwmon.c
-@@ -15,6 +15,36 @@
- #include <linux/workqueue.h>
- #include <soc/bcm2835/raspberrypi-firmware.h>
- 
-+/*
-+ * This section defines some rate limited logging that prevent
-+ * repeated messages at much lower Hz than the default kernel settings.
-+ * It's usually 5s, this is 5 minutes.
-+ * Burst 3 means you may get three messages 'quickly', before
-+ * the ratelimiting kicks in.
-+ */
-+#define LOCAL_RATELIMIT_INTERVAL (5 * 60 * HZ)
-+#define LOCAL_RATELIMIT_BURST 3
-+
-+#ifdef CONFIG_PRINTK
-+#define printk_ratelimited_local(fmt, ...)    \
-+({                                            \
-+      static DEFINE_RATELIMIT_STATE(_rs,      \
-+              LOCAL_RATELIMIT_INTERVAL,       \
-+              LOCAL_RATELIMIT_BURST);         \
-+                                              \
-+      if (__ratelimit(&_rs))                  \
-+              printk(fmt, ##__VA_ARGS__);     \
-+})
-+#else
-+#define printk_ratelimited_local(fmt, ...)    \
-+      no_printk(fmt, ##__VA_ARGS__)
-+#endif
-+
-+#define pr_crit_ratelimited_local(fmt, ...)              \
-+      printk_ratelimited_local(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
-+#define pr_info_ratelimited_local(fmt, ...)              \
-+printk_ratelimited_local(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
-+
- #define UNDERVOLTAGE_STICKY_BIT       BIT(16)
- 
- struct rpi_hwmon_data {
-@@ -47,10 +77,13 @@ static void rpi_firmware_get_throttled(s
-       if (new_uv == old_uv)
-               return;
- 
--      if (new_uv)
--              dev_crit(data->hwmon_dev, "Undervoltage detected!\n");
--      else
--              dev_info(data->hwmon_dev, "Voltage normalised\n");
-+      if (new_uv) {
-+              pr_crit_ratelimited_local("Under-voltage detected! (0x%08x)\n",
-+                                        value);
-+      } else {
-+              pr_info_ratelimited_local("Voltage normalised (0x%08x)\n",
-+                                        value);
-+      }
- 
-       sysfs_notify(&data->hwmon_dev->kobj, NULL, "in0_lcrit_alarm");
- }