bcm27xx: remove linux 5.10 compatibility

[openwrt/staging/chunkeey.git] / target / linux / bcm27xx / patches-5.10 / 950-0002-Revert-rtc-pcf8523-properly-handle-oscillator-stop-b.patch

diff --git a/target/linux/bcm27xx/patches-5.10/950-0002-Revert-rtc-pcf8523-properly-handle-oscillator-stop-b.patch b/target/linux/bcm27xx/patches-5.10/950-0002-Revert-rtc-pcf8523-properly-handle-oscillator-stop-b.patch
deleted file mode 100644 (file)
index 3e26f97..0000000
--- a/target/linux/bcm27xx/patches-5.10/950-0002-Revert-rtc-pcf8523-properly-handle-oscillator-stop-b.patch
+++ /dev/null
@@ -1,56 +0,0 @@
-From f4888774b6bf2f68fa2b389690eee07d7e8efdb9 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Mon, 29 Oct 2018 14:45:45 +0000
-Subject: [PATCH] Revert "rtc: pcf8523: properly handle oscillator stop
- bit"
-
-This reverts commit ede44c908d44b166a5b6bd7caacd105c2ff5a70f.
-
-See: https://github.com/raspberrypi/firmware/issues/1065
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- drivers/rtc/rtc-pcf8523.c | 25 ++++++++++++++++++++++---
- 1 file changed, 22 insertions(+), 3 deletions(-)
-
---- a/drivers/rtc/rtc-pcf8523.c
-+++ b/drivers/rtc/rtc-pcf8523.c
-@@ -205,8 +205,28 @@ static int pcf8523_rtc_read_time(struct
-       if (err < 0)
-               return err;
- 
--      if (regs[0] & REG_SECONDS_OS)
--              return -EINVAL;
-+      if (regs[0] & REG_SECONDS_OS) {
-+              /*
-+               * If the oscillator was stopped, try to clear the flag. Upon
-+               * power-up the flag is always set, but if we cannot clear it
-+               * the oscillator isn't running properly for some reason. The
-+               * sensible thing therefore is to return an error, signalling
-+               * that the clock cannot be assumed to be correct.
-+               */
-+
-+              regs[0] &= ~REG_SECONDS_OS;
-+
-+              err = pcf8523_write(client, REG_SECONDS, regs[0]);
-+              if (err < 0)
-+                      return err;
-+
-+              err = pcf8523_read(client, REG_SECONDS, &regs[0]);
-+              if (err < 0)
-+                      return err;
-+
-+              if (regs[0] & REG_SECONDS_OS)
-+                      return -EAGAIN;
-+      }
- 
-       tm->tm_sec = bcd2bin(regs[0] & 0x7f);
-       tm->tm_min = bcd2bin(regs[1] & 0x7f);
-@@ -242,7 +262,6 @@ static int pcf8523_rtc_set_time(struct d
-               return err;
- 
-       regs[0] = REG_SECONDS;
--      /* This will purposely overwrite REG_SECONDS_OS */
-       regs[1] = bin2bcd(tm->tm_sec);
-       regs[2] = bin2bcd(tm->tm_min);
-       regs[3] = bin2bcd(tm->tm_hour);