[PATCH v6 1/2] clk: shmobile: r8a7779: Add clocks support

Tue May 27 18:34:16 PDT 2014

On Tue, May 27, 2014 at 06:32:39PM -0700, Mike Turquette wrote:
> Quoting Simon Horman (2014-05-27 18:08:50)
> > On Tue, May 27, 2014 at 11:31:42AM +0200, Arnd Bergmann wrote:
> > > On Friday 18 April 2014, Simon Horman wrote:
> > > > diff --git a/drivers/clk/shmobile/clk-r8a7779.c b/drivers/clk/shmobile/clk-r8a7779.c
> > > > new file mode 100644
> > > > index 0000000..652ecac
> > > > --- /dev/null
> > > > +++ b/drivers/clk/shmobile/clk-r8a7779.c
> > > > @@ -0,0 +1,180 @@
> > > > +/*
> > > > + * r8a7779 Core CPG Clocks
> > > > + *
> > > > + * Copyright (C) 2013, 2014 Horms Solutions Ltd.
> > > > + *
> > > > + * Contact: Simon Horman <horms at verge.net.au>
> > > > + *
> > > > + * This program is free software; you can redistribute it and/or modify
> > > > + * it under the terms of the GNU General Public License as published by
> > > > + * the Free Software Foundation; version 2 of the License.
> > > > + */
> > > > +
> > > > +#include <linux/clk-provider.h>
> > > > +#include <linux/clkdev.h>
> > > > +#include <linux/clk/shmobile.h>
> > > > +#include <linux/init.h>
> > > > +#include <linux/kernel.h>
> > > > +#include <linux/of.h>
> > > > +#include <linux/of_address.h>
> > > > +#include <linux/spinlock.h>
> > > > +
> > > > +#include <dt-bindings/clock/r8a7779-clock.h>
> > > 
> > > This currently causes a build error in Linux-next, since the header file
> > > has not been merged along with the driver.
> > 
> > Hi Arnd,
> > 
> > I'm a little unsure what combination of Kernel config options you
> > are using to compile this driver in linux-next but I do agree
> > that the header is missing and that would cause the compile to fail.
> > I apologise for that oversight.
> > 
> > I believe that a good fix is to add the header, which I already have queued-up
> > in the renesas tree for v3.17. I wonder if Mike would consider taking
> > the following patch for v3.16. Alternatively I would be happy to send
> > it it to arm-soc as a fix for v3.16.
> 
> I'm happy to take it for 3.16. I can't squash/rebase my tree so there
> will still be the potential for bisect badness, but that's just the way
> it goes.
> 
> Can you send the patch separately after testing it against the current
> clk-next tree?

Sure, will do.

> Thanks,
> Mike
> 
> > 
> > Naturally I will drop it from my v3.17 queue if it its accepted for v3.16
> > one way or another.
> > 
> > From: Simon Horman <horms+renesas at verge.net.au>
> > 
> > [PATCH] ARM: shmobile: r8a7779: Add clock index macros for DT sources
> > 
> > Add macros usable by device tree sources to reference r8a7779 clocks by
> > index.
> > 
> > Based on work for the r8a7791 SoC by Laurent Pinchart.
> > 
> > Acked-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> > Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
> > ---
> >  include/dt-bindings/clock/r8a7779-clock.h | 64 +++++++++++++++++++++++++++++++
> >  1 file changed, 64 insertions(+)
> >  create mode 100644 include/dt-bindings/clock/r8a7779-clock.h
> > 
> > diff --git a/include/dt-bindings/clock/r8a7779-clock.h b/include/dt-bindings/clock/r8a7779-clock.h
> > new file mode 100644
> > index 0000000..381a611
> > --- /dev/null
> > +++ b/include/dt-bindings/clock/r8a7779-clock.h
> > @@ -0,0 +1,64 @@
> > +/*
> > + * Copyright (C) 2013  Horms Solutions Ltd.
> > + *
> > + * Contact: Simon Horman <horms at verge.net.au>
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + */
> > +
> > +#ifndef __DT_BINDINGS_CLOCK_R8A7779_H__
> > +#define __DT_BINDINGS_CLOCK_R8A7779_H__
> > +
> > +/* CPG */
> > +#define R8A7779_CLK_PLLA       0
> > +#define R8A7779_CLK_Z          1
> > +#define R8A7779_CLK_ZS         2
> > +#define R8A7779_CLK_S          3
> > +#define R8A7779_CLK_S1         4
> > +#define R8A7779_CLK_P          5
> > +#define R8A7779_CLK_B          6
> > +#define R8A7779_CLK_OUT                7
> > +
> > +/* MSTP 0 */
> > +#define R8A7779_CLK_HSPI       7
> > +#define R8A7779_CLK_TMU2       14
> > +#define R8A7779_CLK_TMU1       15
> > +#define R8A7779_CLK_TMU0       16
> > +#define R8A7779_CLK_HSCIF1     18
> > +#define R8A7779_CLK_HSCIF0     19
> > +#define R8A7779_CLK_SCIF5      21
> > +#define R8A7779_CLK_SCIF4      22
> > +#define R8A7779_CLK_SCIF3      23
> > +#define R8A7779_CLK_SCIF2      24
> > +#define R8A7779_CLK_SCIF1      25
> > +#define R8A7779_CLK_SCIF0      26
> > +#define R8A7779_CLK_I2C3       27
> > +#define R8A7779_CLK_I2C2       28
> > +#define R8A7779_CLK_I2C1       29
> > +#define R8A7779_CLK_I2C0       30
> > +
> > +/* MSTP 1 */
> > +#define R8A7779_CLK_USB01      0
> > +#define R8A7779_CLK_USB2       1
> > +#define R8A7779_CLK_DU         3
> > +#define R8A7779_CLK_VIN2       8
> > +#define R8A7779_CLK_VIN1       9
> > +#define R8A7779_CLK_VIN0       10
> > +#define R8A7779_CLK_ETHER      14
> > +#define R8A7779_CLK_SATA       15
> > +#define R8A7779_CLK_PCIE       16
> > +#define R8A7779_CLK_VIN3       20
> > +
> > +/* MSTP 3 */
> > +#define R8A7779_CLK_SDHI3      20
> > +#define R8A7779_CLK_SDHI2      21
> > +#define R8A7779_CLK_SDHI1      22
> > +#define R8A7779_CLK_SDHI0      23
> > +#define R8A7779_CLK_MMC1       30
> > +#define R8A7779_CLK_MMC0       31
> > +
> > +
> > +#endif /* __DT_BINDINGS_CLOCK_R8A7779_H__ */
> > -- 
> > 1.8.5.2
> > 
> > 
> --
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