linux-kernel - [PATCH v2 1/3] clk: ingenic: Allow specifying common clock flags

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Message-Id: <20220428164454.17908-2-aidanmacdonald.0x0@gmail.com>
Date:   Thu, 28 Apr 2022 17:44:52 +0100
From:   Aidan MacDonald <aidanmacdonald.0x0@...il.com>
To:     sboyd@...nel.org, mturquette@...libre.com,
        tsbogend@...ha.franken.de
Cc:     paulburton@...nel.org, paul@...pouillou.net,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: [PATCH v2 1/3] clk: ingenic: Allow specifying common clock flags

Provide a flags field for clocks under the ingenic-cgu driver,
which can be used to set generic common clock framework flags
on the created clocks. For example, the CLK_IS_CRITICAL flag
is needed for some clocks (such as CPU or memory) to stop them
being automatically disabled.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@...il.com>
Reviewed-by: Paul Cercueil <paul@...pouillou.net>
---
 drivers/clk/ingenic/cgu.c | 2 +-
 drivers/clk/ingenic/cgu.h | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c
index af31633a8862..861c50d6cb24 100644
--- a/drivers/clk/ingenic/cgu.c
+++ b/drivers/clk/ingenic/cgu.c
@@ -660,7 +660,7 @@ static int ingenic_register_clock(struct ingenic_cgu *cgu, unsigned idx)
 	ingenic_clk->idx = idx;
 
 	clk_init.name = clk_info->name;
-	clk_init.flags = 0;
+	clk_init.flags = clk_info->flags;
 	clk_init.parent_names = parent_names;
 
 	caps = clk_info->type;
diff --git a/drivers/clk/ingenic/cgu.h b/drivers/clk/ingenic/cgu.h
index bfc2b9c38a41..147b7df0d657 100644
--- a/drivers/clk/ingenic/cgu.h
+++ b/drivers/clk/ingenic/cgu.h
@@ -136,6 +136,7 @@ struct ingenic_cgu_custom_info {
  * struct ingenic_cgu_clk_info - information about a clock
  * @name: name of the clock
  * @type: a bitmask formed from CGU_CLK_* values
+ * @flags: common clock flags to set on this clock
  * @parents: an array of the indices of potential parents of this clock
  *           within the clock_info array of the CGU, or -1 in entries
  *           which correspond to no valid parent
@@ -161,6 +162,8 @@ struct ingenic_cgu_clk_info {
 		CGU_CLK_CUSTOM		= BIT(7),
 	} type;
 
+	unsigned long flags;
+
 	int parents[4];
 
 	union {
-- 
2.35.1