linux-kernel - Re: [PATCH -next] ARM: spear: Fix build error with CONFIG_ARCH

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Message-ID: <20210409040315.vc55eogaxs4zu4xb@vireshk-i7>
Date:   Fri, 9 Apr 2021 09:33:15 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Chen Lifu <chenlifu@...wei.com>
Cc:     Viresh Kumar <vireshk@...nel.org>,
        Shiraz Hashim <shiraz.linux.kernel@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH -next] ARM: spear: Fix build error with
 CONFIG_ARCH_SPEAR3XX

On 09-04-21, 09:55, Chen Lifu wrote:
> commit 77f983a9df42 ("spi: pl022: Use GPIOs looked up by the core")
> deleted 'struct pl022_ssp_controller' member 'num_chipselect'.
> We get build error when CONFIG_ARCH_SPEAR3XX is set:
> arch/arm/mach-spear/spear3xx.c:42:3: error: 'struct pl022_ssp_controller' has no member named 'num_chipselect'
>    42 |  .num_chipselect = 2,
>       |   ^~~~~~~~~~~~~~
> arch/arm/mach-spear/spear3xx.c:42:20: warning: initialization of 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
>    42 |  .num_chipselect = 2,
>       |                    ^
> 
> Fix the issue by deleting the initialization of 'num_chipselect'
> in spear3xx.c.
> 
> Fixes: 77f983a9df42 ("spi: pl022: Use GPIOs looked up by the core")
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Chen Lifu <chenlifu@...wei.com>
> ---
>  arch/arm/mach-spear/spear3xx.c | 10 ----------
>  1 file changed, 10 deletions(-)
> 
> diff --git a/arch/arm/mach-spear/spear3xx.c b/arch/arm/mach-spear/spear3xx.c
> index 8537fcffe5a8..f83321d5e353 100644
> --- a/arch/arm/mach-spear/spear3xx.c
> +++ b/arch/arm/mach-spear/spear3xx.c
> @@ -30,16 +30,6 @@ struct pl022_ssp_controller pl022_plat_data = {
>  	.dma_filter = pl08x_filter_id,
>  	.dma_tx_param = "ssp0_tx",
>  	.dma_rx_param = "ssp0_rx",
> -	/*
> -	 * This is number of spi devices that can be connected to spi. There are
> -	 * two type of chipselects on which slave devices can work. One is chip
> -	 * select provided by spi masters other is controlled through external
> -	 * gpio's. We can't use chipselect provided from spi master (because as
> -	 * soon as FIFO becomes empty, CS is disabled and transfer ends). So
> -	 * this number now depends on number of gpios available for spi. each
> -	 * slave on each master requires a separate gpio pin.
> -	 */
> -	.num_chipselect = 2,
>  };

A patch is already applied by Mark to fix this issue.

-- 
viresh