From: Maxime Ripard <maxime@cerno.tech> To: Mike Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org> Cc: Dom Cobley <dom@raspberrypi.com>, Tim Gover <tim.gover@raspberrypi.com>, Dave Stevenson <dave.stevenson@raspberrypi.com>, dri-devel@lists.freedesktop.org, linux-clk@vger.kernel.org, Maxime Ripard <maxime@cerno.tech>, Phil Elwell <phil@raspberrypi.com> Subject: [PATCH v4 05/10] clk: Add clk_drop_range Date: Tue, 25 Jan 2022 15:15:44 +0100 [thread overview] Message-ID: <20220125141549.747889-6-maxime@cerno.tech> (raw) In-Reply-To: <20220125141549.747889-1-maxime@cerno.tech> In order to reset the range on a clock, we need to call clk_set_rate_range with a minimum of 0 and a maximum of ULONG_MAX. Since it's fairly inconvenient, let's introduce a clk_drop_range() function that will do just this. Suggested-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> --- drivers/clk/clk-test.c | 4 ++-- include/linux/clk.h | 11 +++++++++++ 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/clk/clk-test.c b/drivers/clk/clk-test.c index cb749515837b..d1ce8879eb97 100644 --- a/drivers/clk/clk-test.c +++ b/drivers/clk/clk-test.c @@ -471,7 +471,7 @@ static void clk_range_test_multiple_set_range_rate_maximized(struct kunit *test) KUNIT_EXPECT_EQ(test, rate, DUMMY_CLOCK_RATE_1); KUNIT_ASSERT_EQ(test, - clk_set_rate_range(user2, 0, ULONG_MAX), + clk_drop_range(user2), 0); rate = clk_get_rate(clk); @@ -588,7 +588,7 @@ static void clk_range_test_multiple_set_range_rate_minimized(struct kunit *test) KUNIT_EXPECT_EQ(test, rate, DUMMY_CLOCK_RATE_2); KUNIT_ASSERT_EQ(test, - clk_set_rate_range(user2, 0, ULONG_MAX), + clk_drop_range(user2), 0); rate = clk_get_rate(clk); diff --git a/include/linux/clk.h b/include/linux/clk.h index 266e8de3cb51..f365dac7be17 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -1005,6 +1005,17 @@ static inline struct clk *clk_get_optional(struct device *dev, const char *id) return clk; } +/** + * clk_drop_range - Reset any range set on that clock + * @clk: clock source + * + * Returns success (0) or negative errno. + */ +static inline int clk_drop_range(struct clk *clk) +{ + return clk_set_rate_range(clk, 0, ULONG_MAX); +} + #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) struct clk *of_clk_get(struct device_node *np, int index); struct clk *of_clk_get_by_name(struct device_node *np, const char *name); -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Maxime Ripard <maxime@cerno.tech> To: Mike Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org> Cc: linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, Dave Stevenson <dave.stevenson@raspberrypi.com>, Phil Elwell <phil@raspberrypi.com>, Tim Gover <tim.gover@raspberrypi.com>, Dom Cobley <dom@raspberrypi.com>, Maxime Ripard <maxime@cerno.tech> Subject: [PATCH v4 05/10] clk: Add clk_drop_range Date: Tue, 25 Jan 2022 15:15:44 +0100 [thread overview] Message-ID: <20220125141549.747889-6-maxime@cerno.tech> (raw) In-Reply-To: <20220125141549.747889-1-maxime@cerno.tech> In order to reset the range on a clock, we need to call clk_set_rate_range with a minimum of 0 and a maximum of ULONG_MAX. Since it's fairly inconvenient, let's introduce a clk_drop_range() function that will do just this. Suggested-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> --- drivers/clk/clk-test.c | 4 ++-- include/linux/clk.h | 11 +++++++++++ 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/clk/clk-test.c b/drivers/clk/clk-test.c index cb749515837b..d1ce8879eb97 100644 --- a/drivers/clk/clk-test.c +++ b/drivers/clk/clk-test.c @@ -471,7 +471,7 @@ static void clk_range_test_multiple_set_range_rate_maximized(struct kunit *test) KUNIT_EXPECT_EQ(test, rate, DUMMY_CLOCK_RATE_1); KUNIT_ASSERT_EQ(test, - clk_set_rate_range(user2, 0, ULONG_MAX), + clk_drop_range(user2), 0); rate = clk_get_rate(clk); @@ -588,7 +588,7 @@ static void clk_range_test_multiple_set_range_rate_minimized(struct kunit *test) KUNIT_EXPECT_EQ(test, rate, DUMMY_CLOCK_RATE_2); KUNIT_ASSERT_EQ(test, - clk_set_rate_range(user2, 0, ULONG_MAX), + clk_drop_range(user2), 0); rate = clk_get_rate(clk); diff --git a/include/linux/clk.h b/include/linux/clk.h index 266e8de3cb51..f365dac7be17 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -1005,6 +1005,17 @@ static inline struct clk *clk_get_optional(struct device *dev, const char *id) return clk; } +/** + * clk_drop_range - Reset any range set on that clock + * @clk: clock source + * + * Returns success (0) or negative errno. + */ +static inline int clk_drop_range(struct clk *clk) +{ + return clk_set_rate_range(clk, 0, ULONG_MAX); +} + #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) struct clk *of_clk_get(struct device_node *np, int index); struct clk *of_clk_get_by_name(struct device_node *np, const char *name); -- 2.34.1
next prev parent reply other threads:[~2022-01-25 14:16 UTC|newest] Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-25 14:15 [PATCH v4 00/10] clk: Improve clock range handling Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-01-25 14:15 ` [PATCH v4 01/10] clk: Introduce Kunit Tests for the framework Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-02-19 2:20 ` Stephen Boyd 2022-02-19 2:20 ` Stephen Boyd 2022-02-21 15:12 ` Maxime Ripard 2022-02-21 15:12 ` Maxime Ripard 2022-02-24 22:30 ` Stephen Boyd 2022-02-24 22:30 ` Stephen Boyd 2022-01-25 14:15 ` [PATCH v4 02/10] clk: Always clamp the rounded rate Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-02-18 23:15 ` Stephen Boyd 2022-02-18 23:15 ` Stephen Boyd 2022-02-21 16:18 ` Maxime Ripard 2022-02-21 16:18 ` Maxime Ripard 2022-02-21 16:43 ` Maxime Ripard 2022-02-21 16:43 ` Maxime Ripard 2022-02-24 22:39 ` Stephen Boyd 2022-02-24 22:39 ` Stephen Boyd 2022-02-25 9:35 ` Maxime Ripard 2022-02-25 9:35 ` Maxime Ripard 2022-02-24 22:32 ` Stephen Boyd 2022-02-24 22:32 ` Stephen Boyd 2022-02-25 9:45 ` Maxime Ripard 2022-02-25 9:45 ` Maxime Ripard 2022-01-25 14:15 ` [PATCH v4 03/10] clk: Use clamp instead of open-coding our own Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-02-18 22:34 ` Stephen Boyd 2022-02-18 22:34 ` Stephen Boyd 2022-02-21 16:30 ` Maxime Ripard 2022-02-21 16:30 ` Maxime Ripard 2022-02-24 22:44 ` Stephen Boyd 2022-02-24 22:44 ` Stephen Boyd 2022-02-25 9:39 ` Maxime Ripard 2022-02-25 9:39 ` Maxime Ripard 2022-01-25 14:15 ` [PATCH v4 04/10] clk: Always set the rate on clk_set_range_rate Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard [this message] 2022-01-25 14:15 ` [PATCH v4 05/10] clk: Add clk_drop_range Maxime Ripard 2022-02-19 2:22 ` Stephen Boyd 2022-02-19 2:22 ` Stephen Boyd 2022-01-25 14:15 ` [PATCH v4 06/10] clk: bcm: rpi: Add variant structure Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-01-25 14:15 ` [PATCH v4 07/10] clk: bcm: rpi: Set a default minimum rate Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-01-25 14:15 ` [PATCH v4 08/10] clk: bcm: rpi: Run some clocks at the minimum rate allowed Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-01-25 14:15 ` [PATCH v4 09/10] drm/vc4: Add logging and comments Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-01-25 14:15 ` [PATCH v4 10/10] drm/vc4: hdmi: Remove clock rate initialization Maxime Ripard 2022-01-25 14:15 ` Maxime Ripard 2022-02-10 10:19 ` [PATCH v4 00/10] clk: Improve clock range handling Maxime Ripard 2022-02-10 10:19 ` Maxime Ripard 2022-02-19 2:25 ` Stephen Boyd 2022-02-19 2:25 ` Stephen Boyd 2022-02-14 9:45 ` [PATCH v4 0/10] " Laurent Pinchart 2022-02-14 9:45 ` Laurent Pinchart 2022-02-19 2:24 ` Stephen Boyd 2022-02-19 2:24 ` Stephen Boyd 2022-02-21 9:56 ` Laurent Pinchart 2022-02-21 9:56 ` Laurent Pinchart
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