初始化奇妙小屏幕控制器项目

2026-09-08 22:56:52 +08:00
commit 8d368de3b5
491 changed files with 67678 additions and 0 deletions
@@ -0,0 +1,30 @@
+From: Matrix Screen Controller maintainers
+Subject: [PATCH] regulator: axp20x: accept absent DCDC frequency on AXP313A
+
+The vendor 6.1.31 tree contains an early AXP313A implementation which
+requires dcdcfreq to equal 3000000.  The parser passes zero when the
+x-powers,dcdc-freq property is absent, so that implementation rejects the
+valid binding and logs -EINVAL during every boot.
+
+AXP313A has a fixed 3 MHz switching frequency and the upstream binding
+disallows the property.  Match the final upstream behaviour: accept the
+zero value representing an absent property and reject any configured value.
+
+---
+ drivers/regulator/axp20x-regulator.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
+--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
+@@ -1090,7 +1090,7 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
+ 	case AXP313A_ID:
+ 		/* The DCDC PWM frequency seems to be fixed to 3 MHz. */
+-		if (dcdcfreq != 3000000) {
+		if (dcdcfreq != 0) {
+ 			dev_err(&pdev->dev,
+ 				"DCDC frequency on AXP313a is fixed to 3 MHz.\n");
+ 			return -EINVAL;
+ 		}
+-- 
+2.39.2