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path: root/drivers/clk/qcom/gdsc.c
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Diffstat (limited to 'drivers/clk/qcom/gdsc.c')
-rw-r--r--drivers/clk/qcom/gdsc.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c
index 7e1dd8ccfa38..44520efc6c72 100644
--- a/drivers/clk/qcom/gdsc.c
+++ b/drivers/clk/qcom/gdsc.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
- * Copyright (c) 2015, 2017-2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015, 2017-2018, 2022, The Linux Foundation. All rights reserved.
*/
#include <linux/bitops.h>
@@ -35,9 +35,14 @@
#define CFG_GDSCR_OFFSET 0x4
/* Wait 2^n CXO cycles between all states. Here, n=2 (4 cycles). */
-#define EN_REST_WAIT_VAL (0x2 << 20)
-#define EN_FEW_WAIT_VAL (0x8 << 16)
-#define CLK_DIS_WAIT_VAL (0x2 << 12)
+#define EN_REST_WAIT_VAL 0x2
+#define EN_FEW_WAIT_VAL 0x8
+#define CLK_DIS_WAIT_VAL 0x2
+
+/* Transition delay shifts */
+#define EN_REST_WAIT_SHIFT 20
+#define EN_FEW_WAIT_SHIFT 16
+#define CLK_DIS_WAIT_SHIFT 12
#define RETAIN_MEM BIT(14)
#define RETAIN_PERIPH BIT(13)
@@ -380,7 +385,18 @@ static int gdsc_init(struct gdsc *sc)
*/
mask = HW_CONTROL_MASK | SW_OVERRIDE_MASK |
EN_REST_WAIT_MASK | EN_FEW_WAIT_MASK | CLK_DIS_WAIT_MASK;
- val = EN_REST_WAIT_VAL | EN_FEW_WAIT_VAL | CLK_DIS_WAIT_VAL;
+
+ if (!sc->en_rest_wait_val)
+ sc->en_rest_wait_val = EN_REST_WAIT_VAL;
+ if (!sc->en_few_wait_val)
+ sc->en_few_wait_val = EN_FEW_WAIT_VAL;
+ if (!sc->clk_dis_wait_val)
+ sc->clk_dis_wait_val = CLK_DIS_WAIT_VAL;
+
+ val = sc->en_rest_wait_val << EN_REST_WAIT_SHIFT |
+ sc->en_few_wait_val << EN_FEW_WAIT_SHIFT |
+ sc->clk_dis_wait_val << CLK_DIS_WAIT_SHIFT;
+
ret = regmap_update_bits(sc->regmap, sc->gdscr, mask, val);
if (ret)
return ret;