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SubjectRe: [PATCH v4 15/24] fpga: dfl-fme-pr: add compat_id support for dfl-fme-region platform device.
On Tue, Feb 13, 2018 at 3:24 AM, Wu Hao <hao.wu@intel.com> wrote:

Hi Hao,

> This patch adds compat_id support when driver creates the platform
> device for dfl-fme-region. It allows dfl-fme-region platform driver
> to create fpga-region with correct compat_id.
>
> Signed-off-by: Wu Hao <hao.wu@intel.com>
> ---
> drivers/fpga/dfl-fme-pr.c | 20 ++++++++++++++++++++
> drivers/fpga/dfl-fme-pr.h | 3 +++
> 2 files changed, 23 insertions(+)
>
> diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c
> index 526e90b..c17170b 100644
> --- a/drivers/fpga/dfl-fme-pr.c
> +++ b/drivers/fpga/dfl-fme-pr.c
> @@ -314,6 +314,25 @@ static void fpga_fme_destroy_bridges(struct feature_platform_data *pdata)
> }
>
> /**
> + * fpga_fme_get_region_compat_id - read region compat_id from hardware
> + *
> + * @dev: fme device.
> + */
> +static struct fpga_region_compat_id
> +fpga_fme_get_region_compat_id(struct device *dev)
> +{
> + struct fpga_region_compat_id compat_id;
> + void __iomem *fme_pr;
> +
> + fme_pr = get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_PR_MGMT);
> +
> + compat_id.id_l = readq(fme_pr + FME_PR_INTFC_ID_L);
> + compat_id.id_h = readq(fme_pr + FME_PR_INTFC_ID_H);

I tried building for 32 bit ARM and ran into readq and writeq not
being defined. v2 had proper '#indef readq/writeq', so looks like we
need that after all.

Alan

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