From: Daniel Golle <daniel@makrotopia.org>
Date: Sun, 16 Oct 2022 18:35:50 +0000 (+0100)
Subject: mediatek: don't break auxadc without 32k clk
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=b00640bd062e3f496f349c05218dabf5cafcd8e2;p=openwrt%2Fstaging%2Fsvanheule.git

mediatek: don't break auxadc without 32k clk

Make the newly added 32k clock optional for the auxadc driver also used
on pre-filogic platforms.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---

diff --git a/target/linux/mediatek/patches-5.15/501-auxadc-add-auxadc-32k-clk.patch b/target/linux/mediatek/patches-5.15/501-auxadc-add-auxadc-32k-clk.patch
index a49fbca4ee..5b98235ff4 100644
--- a/target/linux/mediatek/patches-5.15/501-auxadc-add-auxadc-32k-clk.patch
+++ b/target/linux/mediatek/patches-5.15/501-auxadc-add-auxadc-32k-clk.patch
@@ -8,14 +8,16 @@
  	struct mutex lock;
  	const struct mtk_auxadc_compatible *dev_comp;
  };
-@@ -222,6 +223,12 @@ static int __maybe_unused mt6577_auxadc_
+@@ -222,6 +223,14 @@ static int __maybe_unused mt6577_auxadc_
  		return ret;
  	}
  
-+	ret = clk_prepare_enable(adc_dev->adc_32k_clk);
-+	if (ret) {
-+		pr_err("failed to enable auxadc clock\n");
-+		return ret;
++	if (!IS_ERR(adc_dev->adc_32k_clk)) {
++		ret = clk_prepare_enable(adc_dev->adc_32k_clk);
++		if (ret) {
++			pr_err("failed to enable auxadc clock\n");
++			return ret;
++		}
 +	}
 +
  	mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,