From: Alan Tull Date: Fri, 24 Mar 2017 00:34:27 +0000 (-0500) Subject: fpga: add config complete timeout X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=42d5ec954719;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git fpga: add config complete timeout Adding timeout for maximum allowed time for FPGA to go to operating mode after a FPGA region has been programmed. Signed-off-by: Alan Tull Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c index 2fe2a52c66ca..ae4c61aada99 100644 --- a/drivers/fpga/fpga-region.c +++ b/drivers/fpga/fpga-region.c @@ -385,6 +385,9 @@ static int fpga_region_notify_pre_apply(struct fpga_region *region, of_property_read_u32(nd->overlay, "region-freeze-timeout-us", &info->disable_timeout_us); + of_property_read_u32(nd->overlay, "config-complete-timeout-us", + &info->config_complete_timeout_us); + /* If FPGA was externally programmed, don't specify firmware */ if ((info->flags & FPGA_MGR_EXTERNAL_CONFIG) && firmware_name) { pr_err("error: specified firmware and external-fpga-config"); diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h index e2ef94fd37af..b4ac24c4411d 100644 --- a/include/linux/fpga/fpga-mgr.h +++ b/include/linux/fpga/fpga-mgr.h @@ -77,11 +77,14 @@ enum fpga_mgr_states { * @flags: boolean flags as defined above * @enable_timeout_us: maximum time to enable traffic through bridge (uSec) * @disable_timeout_us: maximum time to disable traffic through bridge (uSec) + * @config_complete_timeout_us: maximum time for FPGA to switch to operating + * status in the write_complete op. */ struct fpga_image_info { u32 flags; u32 enable_timeout_us; u32 disable_timeout_us; + u32 config_complete_timeout_us; }; /**