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Merge pull request #4015 from HiassofT/le92-slice-pcf8523

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[le92] Slice/Slice3: use upstream method to set xtal load capacitance
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CvH 2019-11-21 22:50:39 +01:00 committed by GitHub
commit 176222f38c
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 2 additions and 36 deletions
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2
projects/RPi/devices/Slice/config/slice-overlay.dts
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@ -78,7 +78,7 @@
pcf8523@68 {
compatible = "nxp,pcf8523";
reg = <0x68>;
nxp,xtalcap-7pf; // set crystal load to 7pf
quartz-load-femtofarads = <7000>;
status = "okay";
};

17
projects/RPi/devices/Slice/patches/linux/linux-04-rtc-pcf8523-c.patch
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@ -1,17 +0,0 @@
--- a/drivers/rtc/rtc-pcf8523.c 2016-10-01 10:16:30.259771931 +0100
+++ b/drivers/rtc/rtc-pcf8523.c 2016-10-01 10:21:29.762638800 +0100
@@ -291,7 +291,13 @@ static int pcf8523_probe(struct i2c_clie
if (!pcf)
return -ENOMEM;
- err = pcf8523_select_capacitance(client, true);
+ if (of_property_read_bool(client->dev.of_node, "nxp,xtalcap-7pf")) {
+ printk(KERN_ERR "PCF8523 - set 7pF crystal load");
+ err = pcf8523_select_capacitance(client, false);
+ } else {
+ printk(KERN_ERR "PCF8523 - set 12pF crystal load");
+ err = pcf8523_select_capacitance(client, true);
+ }
if (err < 0)
return err;

2
projects/RPi/devices/Slice3/config/slice-overlay.dts
View File

@ -78,7 +78,7 @@
pcf8523@68 {
compatible = "nxp,pcf8523";
reg = <0x68>;
nxp,xtalcap-7pf; // set crystal load to 7pf
quartz-load-femtofarads = <7000>;
status = "okay";
};

17
projects/RPi/devices/Slice3/patches/linux/linux-04-rtc-pcf8523-c.patch
View File

@ -1,17 +0,0 @@
--- a/drivers/rtc/rtc-pcf8523.c 2016-10-01 10:16:30.259771931 +0100
+++ b/drivers/rtc/rtc-pcf8523.c 2016-10-01 10:21:29.762638800 +0100
@@ -291,7 +291,13 @@ static int pcf8523_probe(struct i2c_clie
if (!pcf)
return -ENOMEM;
- err = pcf8523_select_capacitance(client, true);
+ if (of_property_read_bool(client->dev.of_node, "nxp,xtalcap-7pf")) {
+ printk(KERN_ERR "PCF8523 - set 7pF crystal load");
+ err = pcf8523_select_capacitance(client, false);
+ } else {
+ printk(KERN_ERR "PCF8523 - set 12pF crystal load");
+ err = pcf8523_select_capacitance(client, true);
+ }
if (err < 0)
return err;