[1/2] clk: change clk_ops' ->round_rate() prototype

Clock rates are stored in an unsigned long field, but ->round_rate()
(which returns a rounded rate from a requested one) returns a long
value (errors are reported using negative error codes), which can lead
to long overflow if the clock rate exceed 2Ghz.

Change ->round_rate() prototype to return 0 or an error code, and pass the
requested rate as a pointer so that it can be adjusted depending on
hardware capabilities.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
CC: Jonathan Corbet <corbet@lwn.net>
CC: Shawn Guo <shawn.guo@linaro.org>
CC: ascha Hauer <kernel@pengutronix.de>
CC: David Brown <davidb@codeaurora.org>
CC: Daniel Walker <dwalker@fifo99.com>
CC: Bryan Huntsman <bryanh@codeaurora.org>
CC: Tony Lindgren <tony@atomide.com>
CC: Paul Walmsley <paul@pwsan.com>
CC: Liviu Dudau <liviu.dudau@arm.com>
CC: Sudeep Holla <sudeep.holla@arm.com>
CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: Max Filippov <jcmvbkbc@gmail.com>
CC: Heiko Stuebner <heiko@sntech.de>
CC: Sylwester Nawrocki <s.nawrocki@samsung.com> 
CC: Tomasz Figa <tomasz.figa@gmail.com>
CC: Barry Song <baohua@kernel.org>
CC: Viresh Kumar <viresh.linux@gmail.com>
CC: "Emilio López" <emilio@elopez.com.ar>
CC: Maxime Ripard <maxime.ripard@free-electrons.com>
CC: Peter De Schrijver <pdeschrijver@nvidia.com>
CC: Prashant Gaikwad <pgaikwad@nvidia.com>
CC: Stephen Warren <swarren@wwwdotorg.org>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Alexandre Courbot <gnurou@gmail.com>
CC: Tero Kristo <t-kristo@ti.com>
CC: Ulf Hansson <ulf.hansson@linaro.org>
CC: Michal Simek <michal.simek@xilinx.com>
CC: Philipp Zabel <p.zabel@pengutronix.de>
CC: linux-doc@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
CC: linux-arm-msm@vger.kernel.org
CC: linux-omap@vger.kernel.org
CC: linux-mips@linux-mips.org
CC: patches@opensource.wolfsonmicro.com
CC: linux-rockchip@lists.infradead.org
CC: linux-samsung-soc@vger.kernel.org
CC: spear-devel@list.st.com
CC: linux-tegra@vger.kernel.org
CC: dri-devel@lists.freedesktop.org
CC: linux-media@vger.kernel.org
CC: rtc-linux@googlegroups.com

 Documentation/clk.txt                        |  4 +-
 arch/arm/mach-imx/clk-busy.c                 |  2 +-
 arch/arm/mach-imx/clk-cpu.c                  | 12 +++-
 arch/arm/mach-imx/clk-fixup-div.c            |  2 +-
 arch/arm/mach-imx/clk-pfd.c                  | 11 ++--
 arch/arm/mach-imx/clk-pllv2.c                |  8 ++-
 arch/arm/mach-imx/clk-pllv3.c                | 46 +++++++------
 arch/arm/mach-msm/clock-pcom.c               |  4 +-
 arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 13 ++--
 arch/arm/mach-omap2/clkt_clksel.c            |  6 +-
 arch/arm/mach-omap2/clkt_dpll.c              | 21 +++---
 arch/arm/mach-omap2/clock.h                  |  4 +-
 arch/arm/mach-omap2/dpll3xxx.c               | 27 +++++---
 arch/arm/mach-omap2/dpll44xx.c               | 26 +++++---
 arch/arm/mach-vexpress/spc.c                 | 11 +++-
 arch/mips/alchemy/common/clock.c             | 13 ++--
 drivers/clk/at91/clk-h32mx.c                 | 24 ++++---
 drivers/clk/at91/clk-peripheral.c            | 31 +++++----
 drivers/clk/at91/clk-pll.c                   | 14 ++--
 drivers/clk/at91/clk-plldiv.c                | 22 ++++---
 drivers/clk/at91/clk-smd.c                   | 24 ++++---
 drivers/clk/at91/clk-usb.c                   | 34 ++++++----
 drivers/clk/clk-axi-clkgen.c                 |  5 +-
 drivers/clk/clk-cdce706.c                    | 46 ++++++-------
 drivers/clk/clk-composite.c                  | 23 ++++---
 drivers/clk/clk-divider.c                    | 16 +++--
 drivers/clk/clk-fixed-factor.c               |  7 +-
 drivers/clk/clk-fractional-divider.c         | 16 +++--
 drivers/clk/clk-highbank.c                   | 18 +++---
 drivers/clk/clk-si5351.c                     | 96 ++++++++++++++--------------
 drivers/clk/clk-si570.c                      | 14 ++--
 drivers/clk/clk-u300.c                       | 65 ++++++++++---------
 drivers/clk/clk-vt8500.c                     | 27 ++++----
 drivers/clk/clk-wm831x.c                     | 11 ++--
 drivers/clk/clk-xgene.c                      | 11 ++--
 drivers/clk/clk.c                            | 15 +++--
 drivers/clk/mmp/clk-frac.c                   | 14 ++--
 drivers/clk/mvebu/clk-corediv.c              |  7 +-
 drivers/clk/mvebu/clk-cpu.c                  |  9 +--
 drivers/clk/mxs/clk-div.c                    |  4 +-
 drivers/clk/mxs/clk-frac.c                   | 11 ++--
 drivers/clk/mxs/clk-ref.c                    | 11 ++--
 drivers/clk/qcom/clk-regmap-divider.c        |  4 +-
 drivers/clk/rockchip/clk-pll.c               | 13 ++--
 drivers/clk/samsung/clk-pll.c                | 13 ++--
 drivers/clk/shmobile/clk-div6.c              |  7 +-
 drivers/clk/shmobile/clk-rcar-gen2.c         |  9 +--
 drivers/clk/sirf/clk-common.c                | 18 +++---
 drivers/clk/spear/clk-aux-synth.c            | 10 ++-
 drivers/clk/spear/clk-frac-synth.c           | 10 ++-
 drivers/clk/spear/clk-gpt-synth.c            | 10 ++-
 drivers/clk/spear/clk-vco-pll.c              | 20 ++++--
 drivers/clk/st/clk-flexgen.c                 | 11 ++--
 drivers/clk/st/clkgen-fsyn.c                 | 21 +++---
 drivers/clk/st/clkgen-mux.c                  |  2 +-
 drivers/clk/sunxi/clk-factors.c              | 14 ++--
 drivers/clk/tegra/clk-audio-sync.c           |  8 +--
 drivers/clk/tegra/clk-divider.c              | 19 ++++--
 drivers/clk/tegra/clk-periph.c               |  4 +-
 drivers/clk/tegra/clk-pll.c                  | 39 ++++++-----
 drivers/clk/ti/clk-dra7-atl.c                |  9 +--
 drivers/clk/ti/composite.c                   |  4 +-
 drivers/clk/ti/divider.c                     |  9 +--
 drivers/clk/ux500/clk-prcmu.c                | 13 +++-
 drivers/clk/versatile/clk-icst.c             |  9 +--
 drivers/clk/versatile/clk-vexpress-osc.c     | 12 ++--
 drivers/clk/zynq/pll.c                       |  7 +-
 drivers/gpu/drm/imx/imx-tve.c                | 15 +++--
 drivers/gpu/drm/msm/hdmi/hdmi_phy_8960.c     |  7 +-
 drivers/gpu/drm/msm/mdp/mdp4/mdp4_lvds_pll.c |  7 +-
 drivers/media/platform/omap3isp/isp.c        |  6 +-
 drivers/rtc/rtc-hym8563.c                    | 14 ++--
 include/linux/clk-provider.h                 |  6 +-
 include/linux/clk/ti.h                       | 12 ++--
 74 files changed, 672 insertions(+), 475 deletions(-)

[1/2] clk: change clk_ops' ->round_rate() prototype

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