[PATCH v3] video: fbdev: atmel_lcdfb: add COMPILE_TEST support

[Alexandre Belloni]

On 30/05/2019 14:30:19+0200, Bartlomiej Zolnierkiewicz wrote:
> Add COMPILE_TEST support to atmel_lcdfb driver for better compile
> testing coverage.
> 
> While at it fix improper use of UL (to silence build warnings on
> x86_64).
> 
> Cc: Alexandre Belloni <alexandre.belloni at bootlin.com>
Acked-by: Alexandre Belloni <alexandre.belloni at bootlin.com>

> Cc: Ludovic Desroches <ludovic.desroches at microchip.com>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie at samsung.com>
> ---
> v3: fix build warnings on x86_64

Hopefully, no building errors anymore ;)

> 
> v2: add missing HAVE_CLK && HAS IOMEM dependencies
> 
>  drivers/video/fbdev/Kconfig       |    3 ++-
>  drivers/video/fbdev/atmel_lcdfb.c |    4 ++--
>  2 files changed, 4 insertions(+), 3 deletions(-)
> 
> Index: b/drivers/video/fbdev/Kconfig
> ===================================================================
> --- a/drivers/video/fbdev/Kconfig
> +++ b/drivers/video/fbdev/Kconfig
> @@ -855,7 +855,8 @@ config FB_S1D13XXX
>  
>  config FB_ATMEL
>  	tristate "AT91 LCD Controller support"
> -	depends on FB && OF && HAVE_FB_ATMEL
> +	depends on FB && OF && HAVE_CLK && HAS_IOMEM
> +	depends on HAVE_FB_ATMEL || COMPILE_TEST
>  	select FB_BACKLIGHT
>  	select FB_CFB_FILLRECT
>  	select FB_CFB_COPYAREA
> Index: b/drivers/video/fbdev/atmel_lcdfb.c
> ===================================================================
> --- a/drivers/video/fbdev/atmel_lcdfb.c
> +++ b/drivers/video/fbdev/atmel_lcdfb.c
> @@ -673,7 +673,7 @@ static int atmel_lcdfb_set_par(struct fb
>  	lcdc_writel(sinfo, ATMEL_LCDC_MVAL, 0);
>  
>  	/* Disable all interrupts */
> -	lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
> +	lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0U);
>  	/* Enable FIFO & DMA errors */
>  	lcdc_writel(sinfo, ATMEL_LCDC_IER, ATMEL_LCDC_UFLWI | ATMEL_LCDC_OWRI | ATMEL_LCDC_MERI);
>  
> @@ -1291,7 +1291,7 @@ static int atmel_lcdfb_suspend(struct pl
>  	 * We don't want to handle interrupts while the clock is
>  	 * stopped. It may take forever.
>  	 */
> -	lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
> +	lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0U);
>  
>  	sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_CTR);
>  	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0);

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com