From: Jonas Gorski <jonas.gorski@gmail.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>,
Heiko Stuebner <heiko@sntech.de>,
Michael Turquette <mturquette@baylibre.com>,
Thierry Reding <thierry.reding@gmail.com>,
Paul Mackerras <paulus@samba.org>,
Fabio Estevam <festevam@gmail.com>,
linux-clk <linux-clk@vger.kernel.org>,
Michal Simek <michal.simek@xilinx.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
"open list:ARM/Rockchip SoC..."
<linux-rockchip@lists.infradead.org>,
NXP Linux Team <linux-imx@nxp.com>,
Anatolij Gustschin <agust@denx.de>,
Sascha Hauer <s.hauer@pengutronix.de>,
linux-tegra <linux-tegra@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Stephen Boyd <sboyd@kernel.org>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
Peter De Schrijver <pdeschrijver@nvidia.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Shawn Guo <shawnguo@kernel.org>
Subject: Re: [PATCH RFT V3 1/8] clk: divider: add explicit big endian support
Date: Tue, 23 Apr 2019 12:39:59 +0200 [thread overview]
Message-ID: <CAOiHx=mjhzG-i8H5R0A+Mu3mcBXTNEaaBhC8rwCQPMWArDA+1A@mail.gmail.com> (raw)
In-Reply-To: <CAMuHMdX7E8fR+2s-gPgGLKUCdW_--YUDW7w+op3BDurgACFEmA@mail.gmail.com>
Hi Geert,
On Tue, 23 Apr 2019 at 09:49, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Jonas,
>
> On Thu, Apr 18, 2019 at 1:12 PM Jonas Gorski <jonas.gorski@gmail.com> wrote:
> > Add a clock specific flag to switch register accesses to big endian, to
> > allow runtime configuration of big endian divider clocks.
> >
> > Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
> > ---
> > V2 -> V3:
> > * fix passed arguments to clk_div_readl found by kbuild
> > * drop unneeded else in clk_div_readl
> > V1 -> V2:
> > * switch from global to local flag
> >
> > drivers/clk/clk-divider.c | 26 ++++++++++++++++++++++----
> > include/linux/clk-provider.h | 4 ++++
> > 2 files changed, 26 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
> > index e5a17265cfaf..25c7404e376c 100644
> > --- a/drivers/clk/clk-divider.c
> > +++ b/drivers/clk/clk-divider.c
> > @@ -25,6 +25,24 @@
> > * parent - fixed parent. No clk_set_parent support
> > */
> >
> > +static inline u32 clk_div_readl(struct clk_divider *divider)
> > +{
> > + if (divider->flags & CLK_DIVIDER_BIG_ENDIAN)
> > + return ioread32be(divider->reg);
> > +
> > + return clk_readl(divider->reg);
> > +}
> > +
> > +static inline void clk_div_writel(struct clk_divider *divider, u32 val)
> > +{
> > + if (divider->flags & CLK_DIVIDER_BIG_ENDIAN)
> > + iowrite32be(val, divider->reg);
> > + else
> > + clk_writel(val, divider->reg);
> > +}
> > +
> > +#define div_mask(width) ((1 << (width)) - 1)
>
> What's the purpose of adding this definition?
> It does not seem to be used.
No purpose at all, it's an uncaught artifact from rebasing ._.
Stephen, which one is your preferred way of fixing that?
a) a new V4 patchset without this line
b) a follow up patch that removes it
c) just removing the line yourself
Regards
Jonas
next prev parent reply other threads:[~2019-04-23 10:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-18 11:12 [PATCH RFT V3 0/8] clk: make register endianness a run-time property Jonas Gorski
2019-04-18 11:12 ` [PATCH RFT V3 1/8] clk: divider: add explicit big endian support Jonas Gorski
2019-04-18 21:51 ` Stephen Boyd
2019-04-23 7:49 ` Geert Uytterhoeven
2019-04-23 10:39 ` Jonas Gorski [this message]
2019-04-23 17:40 ` Stephen Boyd
2019-04-18 11:12 ` [PATCH RFT V3 2/8] clk: fractional-divider: " Jonas Gorski
2019-04-18 21:51 ` Stephen Boyd
2019-04-18 11:12 ` [PATCH RFT V3 3/8] clk: gate: " Jonas Gorski
2019-04-18 21:51 ` Stephen Boyd
2019-04-18 11:12 ` [PATCH RFT V3 4/8] clk: multiplier: " Jonas Gorski
2019-04-18 21:51 ` Stephen Boyd
2019-04-18 11:12 ` [PATCH RFT V3 5/8] clk: mux: " Jonas Gorski
2019-04-18 21:51 ` Stephen Boyd
2019-04-18 11:12 ` [PATCH RFT V3 6/8] powerpc/512x: mark clocks as big endian Jonas Gorski
2019-04-18 21:51 ` Stephen Boyd
2019-04-18 11:12 ` [PATCH RFT V3 7/8] clk: core: remove powerpc special handling Jonas Gorski
2019-04-18 21:51 ` Stephen Boyd
2019-04-18 11:12 ` [PATCH RFT V3 8/8] clk: core: replace clk_{readl, writel} with {readl, writel} Jonas Gorski
2019-04-18 21:51 ` Stephen Boyd
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