On Thu, 1 Mar 2012 12:28:33 +0000, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Thursday 01 March 2012, Stephen Rothwell wrote:
> > Today's linux-next merge of the arm-soc tree got conflicts in
> > arch/arm/mach-omap1/gpio16xx.c between commit ab985f0f7c2c ("gpio/omap:
> > cleanup omap_gpio_mod_init function") from the gpio tree and commit
> > 63325ff235de ("ARM: OMAP1: Move 16xx GPIO system clock to platform init
> > code") from the arm-soc tree.
> >
> > OK, I can't decide which is correct here - the former adds this code
> > inside the loop (even though it seems to not depend on anything in the
> > loop) and the latter adds it before. I have used the former (but am
> > happy to be corrected). And both commits remove the code in
> > drivers/gpio/gpio-omap.c.
>
> Right, having the code outside of the loop seems correct to me, too.
>
> Grant, I would suggest that I resolve this by merging the the
> omap/gpio/runtime-pm-cleanup branch (f86bcc3) that is in your
> tree into the arm-soc tree as a dependency for the omap1 stuff,
> with the resolution below.
Okay by me.
g.
>
> Arnd
>
> --- a/arch/arm/mach-omap1/gpio16xx.c
> +++ b/arch/arm/mach-omap1/gpio16xx.c
> @@@ -218,17 -225,34 +225,34 @@@ static int __init omap16xx_gpio_init(vo
> if (!cpu_is_omap16xx())
> return -EINVAL;
>
> + /*
> + * Enable system clock for GPIO module.
> + * The CAM_CLK_CTRL *is* really the right place.
> + */
> + omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04,
> + ULPD_CAM_CLK_CTRL);
> +
> - for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++)
> - platform_device_register(omap16xx_gpio_dev[i]);
> + for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++) {
> + pdev = omap16xx_gpio_dev[i];
> + pdata = pdev->dev.platform_data;
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + if (unlikely(!res)) {
> + dev_err(&pdev->dev, "Invalid mem resource.\n");
> + return -ENODEV;
> + }
>
> - gpio_bank_count = ARRAY_SIZE(omap16xx_gpio_dev);
> + base = ioremap(res->start, resource_size(res));
> + if (unlikely(!base)) {
> + dev_err(&pdev->dev, "ioremap failed.\n");
> + return -ENOMEM;
> + }
> +
> + __raw_writel(SYSCONFIG_WORD, base + OMAP1610_GPIO_SYSCONFIG);
> + iounmap(base);
> +
> - /*
> - * Enable system clock for GPIO module.
> - * The CAM_CLK_CTRL *is* really the right place.
> - */
> - omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04,
> - ULPD_CAM_CLK_CTRL);
> -
> + platform_device_register(omap16xx_gpio_dev[i]);
> + }
>
> return 0;
> }
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