The patch

   regmap: Skip clk_put for attached clocks when freeing context

has been applied to the regmap tree at 

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>From eb4a219d19fde99616f120f5655a7121c918cd49 Mon Sep 17 00:00:00 2001
From: James Kelly <>
Date: Tue, 15 May 2018 10:59:58 +1000
Subject: [PATCH] regmap: Skip clk_put for attached clocks when freeing context

Capability to attach an existing clk to a MMIO regmap was
introduced in 4.17rc1.

However, when using attached clk, regmap does not do the clk_get.
Therefore it should not do the clk_put when freeing the MMIO
regmap context.

There does not appear to be any users of attached clocks yet
so this would be a good time to make this change before anything
depends on the existing behaviour.

Signed-off-by: James Kelly <>
Acked-by: Maxime Ripard <>
Signed-off-by: Mark Brown <>
 drivers/base/regmap/regmap-mmio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/base/regmap/regmap-mmio.c 
index 5cadfd3394d8..8741fb5f8f54 100644
--- a/drivers/base/regmap/regmap-mmio.c
+++ b/drivers/base/regmap/regmap-mmio.c
@@ -206,7 +206,8 @@ static void regmap_mmio_free_context(void *context)
        if (!IS_ERR(ctx->clk)) {
-               clk_put(ctx->clk);
+               if (!ctx->attached_clk)
+                       clk_put(ctx->clk);

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