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From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: linux-clk@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 0/5] clk: renesas: rcar-gen2/gen3: Switch to .determine_rate()
Date: Mon, 17 Jun 2019 14:52:33 +0200
Message-ID: <20190617125238.13761-1-geert+renesas@glider.be> (raw)

	Hi Mike, Stephen,

As the .round_rate() callback returns a long clock rate, it cannot
return clock rates that do not fit in signed long, but do fit in
unsigned long.  The newer .determine_rate() callback does not suffer
from this limitation.  In addition, .determine_rate() provides the
ability to specify a rate range.

Hence this patch series switches the Z (CPU) and SD clocks in the R-Car
Gen2 and Gen3 clock drivers from the .round_rate() to the
.determine_rate() callback.

Note that the "div6" clock driver hasn't been converted yet, so div6
clocks still use .round_rate().

This has been tested on R-Car M2-W and R-Car M3-N, and should have no
behavioral impact.

To be queued in clk-renesas-for-v5.3, if approved.

Thanks for your comments!

Geert Uytterhoeven (5):
  clk: renesas: rcar-gen2-legacy: Switch Z clock to .determine_rate()
  clk: renesas: rcar-gen2: Switch Z clock to .determine_rate()
  clk: renesas: rcar-gen3: Switch Z clocks to .determine_rate()
  clk: renesas: rcar-gen3: Avoid double table iteration in SD
    .set_rate()
  clk: renesas: rcar-gen3: Switch SD clocks to .determine_rate()

 drivers/clk/renesas/clk-rcar-gen2.c | 23 ++++++-----
 drivers/clk/renesas/rcar-gen2-cpg.c | 23 ++++++-----
 drivers/clk/renesas/rcar-gen3-cpg.c | 64 ++++++++++++++++-------------
 3 files changed, 61 insertions(+), 49 deletions(-)

-- 
2.17.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

             reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-17 12:52 Geert Uytterhoeven [this message]
2019-06-17 12:52 ` [PATCH 1/5] clk: renesas: rcar-gen2-legacy: Switch Z clock " Geert Uytterhoeven
2019-06-18 11:09   ` Simon Horman
2019-08-30  8:43     ` Geert Uytterhoeven
2019-09-02  8:31       ` Simon Horman
2019-09-02  8:44         ` Geert Uytterhoeven
2019-09-05  8:22           ` Simon Horman
2019-06-17 12:52 ` [PATCH 2/5] clk: renesas: rcar-gen2: " Geert Uytterhoeven
2019-06-17 12:52 ` [PATCH 3/5] clk: renesas: rcar-gen3: Switch Z clocks " Geert Uytterhoeven
2019-06-17 12:52 ` [PATCH 4/5] clk: renesas: rcar-gen3: Avoid double table iteration in SD .set_rate() Geert Uytterhoeven
2019-06-17 12:52 ` [PATCH 5/5] clk: renesas: rcar-gen3: Switch SD clocks to .determine_rate() Geert Uytterhoeven

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