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Date: Fri, 5 Jan 2018 18:09:54 +0100
From: Jerome Brunet <jbrunet@...libre.com>
To: Stephen Boyd <sboyd@...eaurora.org>,
Michael Turquette <mturquette@...libre.com>,
linux-clk@...r.kernel.org
Cc: Jerome Brunet <jbrunet@...libre.com>, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-arm-msm@...r.kernel.org, Vladimir Zapolskiy <vz@...ia.com>,
Sylvain Lemieux <slemieux.tyco@...il.com>,
Andy Gross <andy.gross@...aro.org>,
David Brown <david.brown@...aro.org>
Subject: [PATCH 0/5] clk: read-only dividers and rate propagation fixup
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
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