From: Jerome Brunet <jbrunet@baylibre.com>
To: Stephen Boyd <sboyd@codeaurora.org>,
Michael Turquette <mturquette@baylibre.com>,
linux-clk@vger.kernel.org
Cc: Jerome Brunet <jbrunet@baylibre.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, Vladimir Zapolskiy <vz@mleia.com>,
Sylvain Lemieux <slemieux.tyco@gmail.com>,
Andy Gross <andy.gross@linaro.org>,
David Brown <david.brown@linaro.org>
Subject: [PATCH 0/5] clk: read-only dividers and rate propagation fixup
Date: Fri, 5 Jan 2018 18:09:54 +0100 [thread overview]
Message-ID: <20180105170959.17266-1-jbrunet@baylibre.com> (raw)
A read-only divider may also have CLK_SET_RATE_PARENT flag set, in which
case it should propagate the requested rate to its parent, taking the
read-only divider value into account.
While this is done correctly in qcom's clk-regmap-divider, it is not in
the generic divider and lpc32xx.
Other drivers using divider_round_rate are not impacted because they are
using hard-coded flags without CLK_DIVIDER_READ_ONLY, so read-only
dividers does seems to be concern for them and rate propagation should
work as expected
Jerome Brunet (5):
clk: divider: read-only divider can propagate rate change
clk: lpc32xx: read-only divider can propagate rate change
clk: divider: add divider_ro_round_rate helper
clk: lpc32xx: use divider_ro_round_rate helper
clk: qcom: use divider_ro_round_rate helper
drivers/clk/clk-divider.c | 35 +++++++++++++++++++++++++++++------
drivers/clk/nxp/clk-lpc32xx.c | 15 ++++++++-------
drivers/clk/qcom/clk-regmap-divider.c | 19 ++++++-------------
include/linux/clk-provider.h | 15 +++++++++++++++
4 files changed, 58 insertions(+), 26 deletions(-)
--
2.14.3
WARNING: multiple messages have this Message-ID (diff)
From: jbrunet@baylibre.com (Jerome Brunet)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/5] clk: read-only dividers and rate propagation fixup
Date: Fri, 5 Jan 2018 18:09:54 +0100 [thread overview]
Message-ID: <20180105170959.17266-1-jbrunet@baylibre.com> (raw)
A read-only divider may also have CLK_SET_RATE_PARENT flag set, in which
case it should propagate the requested rate to its parent, taking the
read-only divider value into account.
While this is done correctly in qcom's clk-regmap-divider, it is not in
the generic divider and lpc32xx.
Other drivers using divider_round_rate are not impacted because they are
using hard-coded flags without CLK_DIVIDER_READ_ONLY, so read-only
dividers does seems to be concern for them and rate propagation should
work as expected
Jerome Brunet (5):
clk: divider: read-only divider can propagate rate change
clk: lpc32xx: read-only divider can propagate rate change
clk: divider: add divider_ro_round_rate helper
clk: lpc32xx: use divider_ro_round_rate helper
clk: qcom: use divider_ro_round_rate helper
drivers/clk/clk-divider.c | 35 +++++++++++++++++++++++++++++------
drivers/clk/nxp/clk-lpc32xx.c | 15 ++++++++-------
drivers/clk/qcom/clk-regmap-divider.c | 19 ++++++-------------
include/linux/clk-provider.h | 15 +++++++++++++++
4 files changed, 58 insertions(+), 26 deletions(-)
--
2.14.3
next reply other threads:[~2018-01-05 17:10 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-05 17:09 Jerome Brunet [this message]
2018-01-05 17:09 ` [PATCH 0/5] clk: read-only dividers and rate propagation fixup Jerome Brunet
2018-01-05 17:09 ` [PATCH 1/5] clk: divider: read-only divider can propagate rate change Jerome Brunet
2018-01-05 17:09 ` Jerome Brunet
2018-01-05 17:09 ` Jerome Brunet
2018-01-11 22:55 ` [1/5] " David Lechner
2018-01-11 22:55 ` David Lechner
2018-01-17 16:39 ` Jerome Brunet
2018-01-17 16:39 ` Jerome Brunet
2018-01-05 17:09 ` [PATCH 2/5] clk: lpc32xx: " Jerome Brunet
2018-01-05 17:09 ` Jerome Brunet
2018-01-05 18:12 ` Vladimir Zapolskiy
2018-01-05 18:12 ` Vladimir Zapolskiy
2018-01-05 19:40 ` Jerome Brunet
2018-01-05 19:40 ` Jerome Brunet
2018-01-06 14:04 ` Vladimir Zapolskiy
2018-01-06 14:04 ` Vladimir Zapolskiy
2018-01-08 9:10 ` Jerome Brunet
2018-01-08 9:10 ` Jerome Brunet
2018-01-05 17:09 ` [PATCH 3/5] clk: divider: add divider_ro_round_rate helper Jerome Brunet
2018-01-05 17:09 ` Jerome Brunet
2018-01-11 23:08 ` [3/5] " David Lechner
2018-01-11 23:08 ` David Lechner
2018-01-17 17:47 ` Jerome Brunet
2018-01-17 17:47 ` Jerome Brunet
2018-01-17 17:55 ` David Lechner
2018-01-17 17:55 ` David Lechner
2018-01-05 17:09 ` [PATCH 4/5] clk: lpc32xx: use " Jerome Brunet
2018-01-05 17:09 ` Jerome Brunet
2018-01-05 17:09 ` [PATCH 5/5] clk: qcom: " Jerome Brunet
2018-01-05 17:09 ` Jerome Brunet
2018-01-08 10:04 ` Jerome Brunet
2018-01-08 10:04 ` Jerome Brunet
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