Gx Chip Driver -

gx_mem: allocation failed (size=4194304) → Increase CMA size in bootargs: cma=384M or adjust per-pool sizes in device tree. 7. Device Tree Bindings (Example for GX350) &gx_vpu compatible = "nationalchip,gx350-vpu"; reg = <0x0 0xf1000000 0x0 0x4000>; interrupts = <0 33 4>; clocks = <&clkc GX350_CLK_VPU>, <&clkc GX350_CLK_VPU_AXI>; clock-names = "core", "bus"; firmware-name = "gx_vpu_fw.bin"; memory-region = <&vpu_mem>; ; &gx_disp compatible = "nationalchip,gx350-disp"; reg = <0x0 0xf0000000 0x0 0x2000>; interrupts = <0 25 4>; ports disp_out: endpoint remote-endpoint = <&hdmi_in>; ; ; ;

gx_i2c: bus stuck → Implement i2c recovery (toggle SCL 9 times manually). gx chip driver

GX PM is notoriously minimal : only suspend/resume for system sleep, no runtime PM. Causes high idle power. GX PM is notoriously minimal : only suspend/resume

struct gx_mem_region phys_addr_t start; size_t size; void *cookie; struct list_head list; ; // Allocation from reserved CMA pool void *gx_mem_alloc(size_t size, u32 align); void gx_mem_free(void *handle); If you're stuck, copy working register dumps from

static irqreturn_t gx_disp_irq(int irq, void *dev_id)

If you can avoid GX for a new design, do so. If you're stuck, copy working register dumps from a known-good Android build and compare to your driver’s init sequence.