From: Jerome Brunet <jbrunet@baylibre.com> To: Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@codeaurora.org>, Kevin Hilman <khilman@baylibre.com> Cc: Jerome Brunet <jbrunet@baylibre.com>, linux-clk@vger.kernel.org, linux-amlogic@lists.infradead.org Subject: [PATCH 02/10] clk: add clk_core_set_phase_nolock function Date: Thu, 18 May 2017 18:37:56 +0200 [thread overview] Message-ID: <20170518163804.14123-3-jbrunet@baylibre.com> (raw) In-Reply-To: <20170518163804.14123-1-jbrunet@baylibre.com> Create a core function for set_phase, as it is done for set_rate and set_parent. This rework is done to ease the integration of "protected" clock functionality. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> --- drivers/clk/clk.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index f5c371532509..6031fada37f9 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1873,6 +1873,23 @@ int clk_set_parent(struct clk *clk, struct clk *parent) } EXPORT_SYMBOL_GPL(clk_set_parent); +static int clk_core_set_phase_nolock(struct clk_core *core, int degrees) +{ + int ret = -EINVAL; + + if (!core) + return 0; + + trace_clk_set_phase(clk->core, degrees); + + if (core->ops->set_phase) + ret = core->ops->set_phase(core->hw, degrees); + + trace_clk_set_phase_complete(core, degrees); + + return ret; +} + /** * clk_set_phase - adjust the phase shift of a clock signal * @clk: clock signal source @@ -1895,7 +1912,7 @@ EXPORT_SYMBOL_GPL(clk_set_parent); */ int clk_set_phase(struct clk *clk, int degrees) { - int ret = -EINVAL; + int ret; if (!clk) return 0; @@ -1906,17 +1923,7 @@ int clk_set_phase(struct clk *clk, int degrees) degrees += 360; clk_prepare_lock(); - - trace_clk_set_phase(clk->core, degrees); - - if (clk->core->ops->set_phase) - ret = clk->core->ops->set_phase(clk->core->hw, degrees); - - trace_clk_set_phase_complete(clk->core, degrees); - - if (!ret) - clk->core->phase = degrees; - + ret = clk_core_set_phase_nolock(clk->core, degrees); clk_prepare_unlock(); return ret; -- 2.9.4
WARNING: multiple messages have this Message-ID (diff)
From: jbrunet@baylibre.com (Jerome Brunet) To: linus-amlogic@lists.infradead.org Subject: [PATCH 02/10] clk: add clk_core_set_phase_nolock function Date: Thu, 18 May 2017 18:37:56 +0200 [thread overview] Message-ID: <20170518163804.14123-3-jbrunet@baylibre.com> (raw) In-Reply-To: <20170518163804.14123-1-jbrunet@baylibre.com> Create a core function for set_phase, as it is done for set_rate and set_parent. This rework is done to ease the integration of "protected" clock functionality. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> --- drivers/clk/clk.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index f5c371532509..6031fada37f9 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1873,6 +1873,23 @@ int clk_set_parent(struct clk *clk, struct clk *parent) } EXPORT_SYMBOL_GPL(clk_set_parent); +static int clk_core_set_phase_nolock(struct clk_core *core, int degrees) +{ + int ret = -EINVAL; + + if (!core) + return 0; + + trace_clk_set_phase(clk->core, degrees); + + if (core->ops->set_phase) + ret = core->ops->set_phase(core->hw, degrees); + + trace_clk_set_phase_complete(core, degrees); + + return ret; +} + /** * clk_set_phase - adjust the phase shift of a clock signal * @clk: clock signal source @@ -1895,7 +1912,7 @@ EXPORT_SYMBOL_GPL(clk_set_parent); */ int clk_set_phase(struct clk *clk, int degrees) { - int ret = -EINVAL; + int ret; if (!clk) return 0; @@ -1906,17 +1923,7 @@ int clk_set_phase(struct clk *clk, int degrees) degrees += 360; clk_prepare_lock(); - - trace_clk_set_phase(clk->core, degrees); - - if (clk->core->ops->set_phase) - ret = clk->core->ops->set_phase(clk->core->hw, degrees); - - trace_clk_set_phase_complete(clk->core, degrees); - - if (!ret) - clk->core->phase = degrees; - + ret = clk_core_set_phase_nolock(clk->core, degrees); clk_prepare_unlock(); return ret; -- 2.9.4
next prev parent reply other threads:[~2017-05-18 16:37 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-05-18 16:37 [PATCH 00/10] clk: implement clock rate protection mechanism Jerome Brunet 2017-05-18 16:37 ` Jerome Brunet 2017-05-18 16:37 ` [PATCH 01/10] clk: take the prepare lock out of clk_core_set_paren Jerome Brunet 2017-05-18 16:37 ` Jerome Brunet 2017-05-18 16:37 ` Jerome Brunet [this message] 2017-05-18 16:37 ` [PATCH 02/10] clk: add clk_core_set_phase_nolock function Jerome Brunet 2017-05-18 16:37 ` [PATCH 03/10] clk: rework calls to round and determine rate callbacks Jerome Brunet 2017-05-18 16:37 ` Jerome Brunet 2017-05-18 16:37 ` [PATCH 04/10] clk: add support for clock protection Jerome Brunet 2017-05-18 16:37 ` Jerome Brunet 2017-05-18 16:37 ` [PATCH 05/10] clk: add clk_set_rate_protect Jerome Brunet 2017-05-18 16:37 ` Jerome Brunet 2017-05-18 16:38 ` [PATCH 07/10] clk: cosmetic changes to clk_summary debugfs entry Jerome Brunet 2017-05-18 16:38 ` Jerome Brunet 2017-05-18 16:38 ` [PATCH 08/10] clk: fix incorrect usage of ENOSYS Jerome Brunet 2017-05-18 16:38 ` Jerome Brunet 2017-05-18 16:38 ` [PATCH 09/10] clk: fix CLK_SET_RATE_GATE with clock rate protection Jerome Brunet 2017-05-18 16:38 ` Jerome Brunet 2017-05-18 16:38 ` [PATCH 10/10] clk: move CLK_SET_RATE_GATE protection from prepare to enable Jerome Brunet 2017-05-18 16:38 ` Jerome Brunet 2017-05-19 10:05 ` [PATCH 00/10] clk: implement clock rate protection mechanism Jerome Brunet 2017-05-19 10:05 ` Jerome Brunet
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