[PATCH v7 03/11] clk: imx: scu: add two cells binding support

[Aisheng Dong]

> From: Nathan Chancellor <natechancellor at gmail.com>
> Sent: Friday, October 30, 2020 9:06 AM
> 
> On Wed, Jul 29, 2020 at 04:00:10PM +0800, Dong Aisheng wrote:
> > This patch implements the new two cells binding for SCU clocks.
> > The usage is as follows:
> > clocks = <&uart0_clk IMX_SC_R_UART_0 IMX_SC_PM_CLK_PER>
> >
> > Due to each SCU clock is associated with a power domain, without power
> > on the domain, the SCU clock can't work. So we create platform devices
> > for each domain clock respectively and manually attach the required
> > domain before register the clock devices, then we can register clocks
> > in the clock platform driver accordingly.
> >
> > Note because we do not have power domain info in device tree and the
> > SCU resource ID is the same for power domain and clock, so we use
> > resource ID to find power domains.
> >
> > Later, we will also use this clock platform driver to support
> > suspend/resume and runtime pm.
> >
> > Cc: Stephen Boyd <sboyd at kernel.org>
> > Cc: Shawn Guo <shawnguo at kernel.org>
> > Cc: Sascha Hauer <kernel at pengutronix.de>
> > Cc: Michael Turquette <mturquette at baylibre.com>
> > Signed-off-by: Dong Aisheng <aisheng.dong at nxp.com>
> 
> This patch breaks allmodconfig.

Thanks for the info.
I'm checking it.

Regards
Aisheng

> 
> $ make -skj"$(nproc)" ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-
> distclean allmodconfig drivers/clk/imx/ In file included
> from ./include/linux/device.h:32,
>                  from ./include/linux/of_platform.h:9,
>                  from drivers/clk/imx/clk-scu.c:11:
> ./include/linux/device/driver.h:290:1: warning: data definition has no type or
> storage class
>   290 | device_initcall(__driver##_init);
>       | ^~~~~~~~~~~~~~~
> ./include/linux/platform_device.h:258:2: note: in expansion of macro
> 'builtin_driver'
>   258 |  builtin_driver(__platform_driver, platform_driver_register)
>       |  ^~~~~~~~~~~~~~
> drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro
> 'builtin_platform_driver'
>   545 | builtin_platform_driver(imx_clk_scu_driver);
>       | ^~~~~~~~~~~~~~~~~~~~~~~
> ./include/linux/device/driver.h:290:1: error: type defaults to 'int' in declaration
> of 'device_initcall' [-Werror=implicit-int]
>   290 | device_initcall(__driver##_init);
>       | ^~~~~~~~~~~~~~~
> ./include/linux/platform_device.h:258:2: note: in expansion of macro
> 'builtin_driver'
>   258 |  builtin_driver(__platform_driver, platform_driver_register)
>       |  ^~~~~~~~~~~~~~
> drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro
> 'builtin_platform_driver'
>   545 | builtin_platform_driver(imx_clk_scu_driver);
>       | ^~~~~~~~~~~~~~~~~~~~~~~
> drivers/clk/imx/clk-scu.c:545:1: warning: parameter names (without types) in
> function declaration In file included from ./include/linux/device.h:32,
>                  from ./include/linux/of_platform.h:9,
>                  from drivers/clk/imx/clk-scu.c:11:
> drivers/clk/imx/clk-scu.c:545:25: warning: 'imx_clk_scu_driver_init' defined but
> not used [-Wunused-function]
>   545 | builtin_platform_driver(imx_clk_scu_driver);
>       |                         ^~~~~~~~~~~~~~~~~~
> ./include/linux/device/driver.h:286:19: note: in definition of macro
> 'builtin_driver'
>   286 | static int __init __driver##_init(void) \
>       |                   ^~~~~~~~
> drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro
> 'builtin_platform_driver'
>   545 | builtin_platform_driver(imx_clk_scu_driver);
>       | ^~~~~~~~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
> make[4]: *** [scripts/Makefile.build:283: drivers/clk/imx/clk-scu.o] Error 1
> make[4]: Target '__build' not remade because of errors.
> make[3]: *** [scripts/Makefile.build:500: drivers/clk/imx] Error 2
> make[3]: Target '__build' not remade because of errors.
> make[2]: *** [scripts/Makefile.build:500: drivers/clk] Error 2
> make[2]: Target '__build' not remade because of errors.
> make[1]: *** [Makefile:1799: drivers] Error 2
> make[1]: Target 'drivers/clk/imx/' not remade because of errors.
> make: *** [Makefile:335: __build_one_by_one] Error 2
> make: Target 'distclean' not remade because of errors.
> make: Target 'allmodconfig' not remade because of errors.
> make: Target 'drivers/clk/imx/' not remade because of errors.
> 
> Cheers,
> Nathan