pvr_device_reg_init(9)

💖 NAME 💖

okay so we're on the pvr_device_reg_init(9) page from the Kernel API Manual, and this one is literally about initializing kernel access to a PowerVR device's control registers. slay.

✨ SYNOPSIS ✨

int pvr_device_reg_init (struct pvr_device *pvr_dev );

🎀 ARGUMENTS 🎀

• pvr_dev — target PowerVR device. that's the one, bestie 🫶

🦋 DESCRIPTION 🦋

so this function sets struct pvr_device->regs. main character behavior, honestly.

mapping the device control registers into memory this way means they get unmapped when the driver is detached — i.e. no explicit cleanup is required. lowkey iconic, no manual cleanup era 💅

🔥 RETURN 🔥

• 0 on success, or
• any error returned by devm_platform_get_and_ioremap_resource. yep, it hands those errors straight to you 🙈

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/imagination/pvr_device.c
• pvr_device_clk_init(9)
• pvr_device_process_active_queues(9)
• pvr_device_irq_init(9)
• pvr_device_irq_fini(9)
• pvr_build_firmware_filename(9)
• pvr_request_firmware(9)
• pvr_gpuid_decode_reg(9)
• pvr_gpuid_decode_string(9)
• enum pvr_gpu_support_level(9)
• pvr_load_gpu_id(9)
• pvr_set_dma_info(9)
• pvr_device_gpu_init(9)
• pvr_device_gpu_fini(9)
• pvr_device_init(9)
• pvr_device_fini(9)
• pvr_device_has_feature(9)

xoxo, your kernel bestie 💅 — source/version: ./drivers/gpu/drm/imagination, dated October 2026 🎀