Commit Graph

8 Commits

Author SHA1 Message Date
Stephen Boyd 836ee0f7d9 clk: Convert __clk_get_name(hw->clk) to clk_hw_get_name(hw)
Use the provider based method to get a clock's name so that we
can get rid of the clk member in struct clk_hw one day. Mostly
converted with the following coccinelle script.

@@
struct clk_hw *E;
@@

-__clk_get_name(E->clk)
+clk_hw_get_name(E)

Acked-by: Heiko Stuebner <heiko@sntech.de>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Thierry Reding <treding@nvidia.com>
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>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kevin Cernekee <cernekee@chromium.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24 16:49:12 -07:00
Stephen Boyd 497295afb5 clk: Replace __clk_get_num_parents with clk_hw_get_num_parents()
Mostly converted with the following semantic patch:

@@
struct clk_hw *E;
@@

-__clk_get_num_parents(E->clk)
+clk_hw_get_num_parents(E)

Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Chao Xie <chao.xie@marvell.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: "Emilio López" <emilio@elopez.com.ar>
Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24 16:48:43 -07:00
Geert Uytterhoeven 5a1cfafaea clk: shmobile: Remove unneeded #include <linux/clkdev.h>
The CCF implementations for the various shmobile SoCs don't use clkdev
functionality, hence drop the inclusion of <linux/clkdev.h>.

Add the missing #include <linux/slab.h>, which was included implicitly
through <asm/clkdev.h> before.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-28 11:58:44 -07:00
Geert Uytterhoeven 5469d4f22e clk: shmobile: div6: Avoid division by zero in .round_rate()
Anyone may call clk_round_rate() with a zero rate value, so we have to
protect against that.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-02-04 14:02:42 -08:00
Geert Uytterhoeven 7980a86190 clk: shmobile: div6: Avoid changing divisor in .disable()
While DIV6 clocks require the divisor field to be non-zero when stopping
the clock, some clocks (e.g. ZB on sh73a0) fail to be re-enabled later
if the divisor field is changed when stopping the clock.
The reason for this is unknown.

To fix this, do not touch the divisor field if it's already non-zero.

On kzm9g, the smsc911x Ethernet controller is connected to the sh73a0
Bus State Controller, which is clocked by the ZB clock. Without this
fix, if the ZB clock is disabled during system suspend, and re-enabled
during resume, the kernel locks up when the smsc911x driver tries to
access the Ethernet registers.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-01-08 16:13:19 +01:00
Ulrich Hecht c6d67fb037 clk: shmobile: div6: support selectable-input clocks
Support for setting the parent at initialization time based on the current
hardware configuration in DIV6 clocks with selectable parents as found in
the r8a73a4, r8a7740, sh73a0, and other SoCs.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2014-11-12 14:24:08 +01:00
Wolfram Sang 95aa4f9b5f clk: shmobile: div6: use proper description in kernel doc
These variable clocks have nothing to do with MSTP gating, probably a
copy&paste leftover.

Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-02-25 00:26:37 -08:00
Laurent Pinchart abe844aa5b clk: shmobile: Add DIV6 clock support
DIV6 clocks are divider gate clocks controlled through a single
register. The divider is expressed on 6 bits, hence the name, and can
take values from 1/1 to 1/64.

Those clocks are found on Renesas ARM SoCs.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-12-12 19:23:58 -08:00