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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
57 lines
1.6 KiB
Diff
57 lines
1.6 KiB
Diff
From 0557d41d861b8c214b3472749482efdc71363dbb Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Mon, 29 Oct 2018 14:45:45 +0000
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Subject: [PATCH] Revert "rtc: pcf8523: properly handle oscillator stop
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bit"
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This reverts commit ede44c908d44b166a5b6bd7caacd105c2ff5a70f.
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See: https://github.com/raspberrypi/firmware/issues/1065
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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drivers/rtc/rtc-pcf8523.c | 25 ++++++++++++++++++++++---
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1 file changed, 22 insertions(+), 3 deletions(-)
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--- a/drivers/rtc/rtc-pcf8523.c
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+++ b/drivers/rtc/rtc-pcf8523.c
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@@ -212,8 +212,28 @@ static int pcf8523_rtc_read_time(struct
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if (err < 0)
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return err;
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- if (regs[0] & REG_SECONDS_OS)
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- return -EINVAL;
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+ if (regs[0] & REG_SECONDS_OS) {
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+ /*
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+ * If the oscillator was stopped, try to clear the flag. Upon
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+ * power-up the flag is always set, but if we cannot clear it
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+ * the oscillator isn't running properly for some reason. The
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+ * sensible thing therefore is to return an error, signalling
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+ * that the clock cannot be assumed to be correct.
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+ */
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+
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+ regs[0] &= ~REG_SECONDS_OS;
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+
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+ err = pcf8523_write(client, REG_SECONDS, regs[0]);
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+ if (err < 0)
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+ return err;
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+
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+ err = pcf8523_read(client, REG_SECONDS, ®s[0]);
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+ if (err < 0)
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+ return err;
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+
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+ if (regs[0] & REG_SECONDS_OS)
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+ return -EAGAIN;
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+ }
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tm->tm_sec = bcd2bin(regs[0] & 0x7f);
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tm->tm_min = bcd2bin(regs[1] & 0x7f);
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@@ -249,7 +269,6 @@ static int pcf8523_rtc_set_time(struct d
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return err;
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regs[0] = REG_SECONDS;
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- /* This will purposely overwrite REG_SECONDS_OS */
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regs[1] = bin2bcd(tm->tm_sec);
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regs[2] = bin2bcd(tm->tm_min);
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regs[3] = bin2bcd(tm->tm_hour);
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