[PATCH v3 1/3] QE: move qe code from arch/powerpc to drivers/soc

[qiang.zhao at freescale.com]

On Oct 30, 2014, at 9:37 AM, Kumar Gala wrote:


> -----Original Message-----
> From: Kumar Gala [mailto:galak at kernel.crashing.org]
> Sent: Thursday, October 30, 2014 9:37 PM
> To: Zhao Qiang-B45475
> Cc: linuxppc-dev at lists.ozlabs.org; linux-kernel at vger.kernel.org; Wood
> Scott-B07421; Xie Xiaobo-R63061
> Subject: Re: [PATCH v3 1/3] QE: move qe code from arch/powerpc to
> drivers/soc
> 
> 
> On Oct 30, 2014, at 2:31 AM, Zhao Qiang <B45475 at freescale.com> wrote:
> 
> > LS1 is arm cpu and it has qe ip block.
> > move qe code from platform directory to public directory.
> >
> > QE is an IP block integrates several comunications peripheral
> > controllers. It can implement a variety of applications, such as uart,
> > usb and tdm and so on.
> >
> > Signed-off-by: Zhao Qiang <B45475 at freescale.com>
> > ---
> > Changes for v2:
> > 	- move code to driver/soc
> > Changes for v3:
> > 	- change drivers/soc/qe to drivers/soc/fsl-qe
> >
> > arch/powerpc/Kconfig                               |  2 -
> > arch/powerpc/platforms/83xx/km83xx.c               |  4 +-
> > arch/powerpc/platforms/83xx/misc.c                 |  2 +-
> > arch/powerpc/platforms/83xx/mpc832x_mds.c          |  4 +-
> > arch/powerpc/platforms/83xx/mpc832x_rdb.c          |  4 +-
> > arch/powerpc/platforms/83xx/mpc836x_mds.c          |  4 +-
> > arch/powerpc/platforms/83xx/mpc836x_rdk.c          |  4 +-
> > arch/powerpc/platforms/85xx/common.c               |  2 +-
> > arch/powerpc/platforms/85xx/corenet_generic.c      |  2 +-
> > arch/powerpc/platforms/85xx/mpc85xx_mds.c          |  4 +-
> > arch/powerpc/platforms/85xx/mpc85xx_rdb.c          |  4 +-
> > arch/powerpc/platforms/85xx/twr_p102x.c            |  4 +-
> > arch/powerpc/platforms/Kconfig                     | 19 ---------
> > arch/powerpc/sysdev/Makefile                       |  1 -
> > arch/powerpc/sysdev/qe_lib/Kconfig                 | 27 -------------
> > drivers/net/ethernet/freescale/fsl_pq_mdio.c       |  2 +-
> > drivers/net/ethernet/freescale/ucc_geth.c          |  8 ++--
> > drivers/net/ethernet/freescale/ucc_geth.h          |  8 ++--
> > drivers/soc/Kconfig                                |  2 +
> > drivers/soc/Makefile                               |  1 +
> > drivers/soc/fsl-qe/Kconfig                         | 45
> ++++++++++++++++++++++
> > .../sysdev/qe_lib => drivers/soc/fsl-qe}/Makefile  |  0
> > .../sysdev/qe_lib => drivers/soc/fsl-qe}/gpio.c    |  2 +-
> > .../sysdev/qe_lib => drivers/soc/fsl-qe}/qe.c      |  4 +-
> > .../sysdev/qe_lib => drivers/soc/fsl-qe}/qe_ic.c   |  2 +-
> > .../sysdev/qe_lib => drivers/soc/fsl-qe}/qe_ic.h   |  2 +-
> > .../sysdev/qe_lib => drivers/soc/fsl-qe}/qe_io.c   |  2 +-
> > .../sysdev/qe_lib => drivers/soc/fsl-qe}/ucc.c     |  6 +--
> > .../qe_lib => drivers/soc/fsl-qe}/ucc_fast.c       |  8 ++--
> > .../qe_lib => drivers/soc/fsl-qe}/ucc_slow.c       |  8 ++--
> > .../sysdev/qe_lib => drivers/soc/fsl-qe}/usb.c     |  4 +-
> > drivers/spi/spi-fsl-cpm.c                          |  2 +-
> > drivers/tty/serial/ucc_uart.c                      |  2 +-
> > drivers/usb/gadget/fsl_qe_udc.c                    |  2 +-
> > drivers/usb/host/fhci-hcd.c                        |  2 +-
> > drivers/usb/host/fhci-hub.c                        |  2 +-
> > drivers/usb/host/fhci-sched.c                      |  2 +-
> > drivers/usb/host/fhci.h                            |  4 +-
> > .../include/asm => include/linux/fsl}/immap_qe.h   |  0
> > .../powerpc/include/asm => include/linux/fsl}/qe.h |  2 +-
> > .../include/asm => include/linux/fsl}/qe_ic.h      |  0
> > .../include/asm => include/linux/fsl}/ucc.h        |  4 +-
> > .../include/asm => include/linux/fsl}/ucc_fast.h   |  6 +--
> > .../include/asm => include/linux/fsl}/ucc_slow.h   |  6 +--
> > 44 files changed, 112 insertions(+), 113 deletions(-) delete mode
> > 100644 arch/powerpc/sysdev/qe_lib/Kconfig
> > create mode 100644 drivers/soc/fsl-qe/Kconfig rename
> > {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl-qe}/Makefile (100%)
> > rename {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl-qe}/gpio.c (99%)
> > rename {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl-qe}/qe.c (99%)
> > rename {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl-qe}/qe_ic.c
> > (99%) rename {arch/powerpc/sysdev/qe_lib =>
> > drivers/soc/fsl-qe}/qe_ic.h (98%) rename {arch/powerpc/sysdev/qe_lib
> > => drivers/soc/fsl-qe}/qe_io.c (99%) rename
> > {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl-qe}/ucc.c (98%) rename
> > {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl-qe}/ucc_fast.c (98%)
> > rename {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl-qe}/ucc_slow.c
> > (98%) rename {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl-qe}/usb.c
> > (96%) rename {arch/powerpc/include/asm =>
> > include/linux/fsl}/immap_qe.h (100%) rename {arch/powerpc/include/asm
> > => include/linux/fsl}/qe.h (99%) rename {arch/powerpc/include/asm =>
> > include/linux/fsl}/qe_ic.h (100%) rename {arch/powerpc/include/asm =>
> > include/linux/fsl}/ucc.h (96%) rename {arch/powerpc/include/asm =>
> > include/linux/fsl}/ucc_fast.h (98%) rename {arch/powerpc/include/asm
> > => include/linux/fsl}/ucc_slow.h (99%)
> 
> 
> So you should be moving things to drivers/soc/fsl/qe/ not
> drivers/soc/fsl-qe/
> 
> The headers should be in include/soc/fsl, not include/linux/fsl

I don't understand why I need to put headers in include/soc/fsl,
Can you explain more?

> 
> In addition before this move is accepted, other changes need to be made
> to convert to using standard frameworks for various functionality in QE
> lib.
> 
> 1. gpio.c -> needs to be converted to GPIO framework and placed in
> drivers/gpio 2. qe_ic* should probably move into drivers/irqchip 3.
> qe_io.c should be converted over to pinmux and put in drivers/pinctrl 4.
> Some of the clock could should be looked to be converted to use the clk
> framework
> 
> These changes need to be addressed before any of the qe_lib code can get
> moved into drivers/soc
> 
> - k

Best Regards
Zhao Qiang