diff mbox series

[v3,8/8] thermal: mediatek: use spinlock to protect PTPCORESEL

Message ID 20200103064407.19861-9-michael.kao@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Add Mediatek thermal dirver and dtsi | expand

Commit Message

Michael Kao Jan. 3, 2020, 6:44 a.m. UTC 
From: "michael.kao" <michael.kao@mediatek.com>

The driver of thermal and svs will use the
same register for the project which should select
bank before reading sensor value.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
---
 drivers/thermal/mtk_thermal.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 9be9fcb18d9e..639d34ed223b 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -22,6 +22,7 @@ 
 #include <linux/thermal.h>
 #include <linux/reset.h>
 #include <linux/types.h>
+#include <linux/power/mtk_svs.h>
 
 /* AUXADC Registers */
 #define AUXADC_CON1_SET_V	0x008
@@ -262,7 +263,7 @@  struct mtk_thermal {
 	struct clk *clk_peri_therm;
 	struct clk *clk_auxadc;
 	/* lock: for getting and putting banks */
-	struct mutex lock;
+	unsigned long flags;
 
 	/* Calibration values */
 	s32 adc_ge;
@@ -561,7 +562,7 @@  static void mtk_thermal_get_bank(struct mtk_thermal_bank *bank)
 	u32 val;
 
 	if (mt->conf->need_switch_bank) {
-		mutex_lock(&mt->lock);
+		mt->flags = claim_mtk_svs_lock();
 
 		val = readl(mt->thermal_base + PTPCORESEL);
 		val &= ~0xf;
@@ -581,7 +582,7 @@  static void mtk_thermal_put_bank(struct mtk_thermal_bank *bank)
 	struct mtk_thermal *mt = bank->mt;
 
 	if (mt->conf->need_switch_bank)
-		mutex_unlock(&mt->lock);
+		release_mtk_svs_lock(mt->flags);
 }
 
 /**
@@ -936,8 +937,6 @@  static int mtk_thermal_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	mutex_init(&mt->lock);
-
 	mt->dev = &pdev->dev;
 
 	auxadc = of_parse_phandle(np, "mediatek,auxadc", 0);