[openwrt/openwrt] mpc85xx: p2020: add RTC ds1307 to kernel

[LEDE Commits]

chunkeey pushed a commit to openwrt/openwrt.git, branch openwrt-22.03:
https://git.openwrt.org/4130e7ed54ed59e0af00fbe07c492716335b3c99

commit 4130e7ed54ed59e0af00fbe07c492716335b3c99
Author: Josef Schlehofer <pepe.schlehofer at gmail.com>
AuthorDate: Sat Jun 11 09:37:43 2022 +0200

    mpc85xx: p2020: add RTC ds1307 to kernel
    
    If the RTC module is compiled as a module, the hctosys fails to
    initialize because ds1307 is loaded later.
    
    Fixes:
    [    2.004145] hctosys: unable to open rtc device (rtc0)
    [   11.957997] rtc-ds1307 0-006f: registered as rtc0
    
    This is similar to commit 5481ce9a1157a43d8b2c963e03fb243e70974361,
    which was done for imx6 target.
    
    Signed-off-by: Josef Schlehofer <pepe.schlehofer at gmail.com>
    (cherry picked from commit dc7f78da97c62cd6c17a75f754da5bf6b957837d)
---
 target/linux/mpc85xx/p2020/config-default | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/mpc85xx/p2020/config-default b/target/linux/mpc85xx/p2020/config-default
index de7f09e1f3..e4ed758d95 100644
--- a/target/linux/mpc85xx/p2020/config-default
+++ b/target/linux/mpc85xx/p2020/config-default
@@ -21,6 +21,7 @@ CONFIG_PCI_MSI=y
 CONFIG_PPC_MSI_BITMAP=y
 CONFIG_RFS_ACCEL=y
 CONFIG_RPS=y
+CONFIG_RTC_DRV_DS1307=y
 CONFIG_RWSEM_SPIN_ON_OWNER=y
 CONFIG_SMP=y
 CONFIG_TREE_RCU=y