drivers/spi/spi-pci1xxxx.c:373:34: sparse: sparse: incorrect type in argument 2 (different address spaces)

drivers/spi/spi-pci1xxxx.c:373:34: sparse: sparse: incorrect type in argument 2 (different address spaces)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c2ee9f594da826bea183ed14f2cc029c719bf4da
commit: 9538edeb72c989a4b90964ae4bba107eaf21a791 spi: mchp-pci1xxxx: DMA support for copying data to and from SPI Buf
date:   9 months ago
config: mips-randconfig-r131-20241020 (https://download.01.org/0day-ci/archive/20241023/202410231613.esFBi2e7-lkp@intel.com/config)
compiler: mips64-linux-gcc (GCC) 14.1.0
reproduce: (https://download.01.org/0day-ci/archive/20241023/202410231613.esFBi2e7-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410231613.esFBi2e7-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   drivers/spi/spi-pci1xxxx.c:369:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *base @@     got void [noderef] __iomem * @@
   drivers/spi/spi-pci1xxxx.c:369:22: sparse:     expected void *base
   drivers/spi/spi-pci1xxxx.c:369:22: sparse:     got void [noderef] __iomem *
   drivers/spi/spi-pci1xxxx.c:371:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *base @@     got void [noderef] __iomem * @@
   drivers/spi/spi-pci1xxxx.c:371:22: sparse:     expected void *base
   drivers/spi/spi-pci1xxxx.c:371:22: sparse:     got void [noderef] __iomem *
>> drivers/spi/spi-pci1xxxx.c:373:34: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   drivers/spi/spi-pci1xxxx.c:373:34: sparse:     expected void volatile [noderef] __iomem *mem
   drivers/spi/spi-pci1xxxx.c:373:34: sparse:     got void *
   drivers/spi/spi-pci1xxxx.c:374:26: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   drivers/spi/spi-pci1xxxx.c:374:26: sparse:     expected void volatile [noderef] __iomem *mem
   drivers/spi/spi-pci1xxxx.c:374:26: sparse:     got void *
   drivers/spi/spi-pci1xxxx.c:375:46: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   drivers/spi/spi-pci1xxxx.c:375:46: sparse:     expected void volatile [noderef] __iomem *mem
   drivers/spi/spi-pci1xxxx.c:375:46: sparse:     got void *
   drivers/spi/spi-pci1xxxx.c:376:46: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   drivers/spi/spi-pci1xxxx.c:376:46: sparse:     expected void volatile [noderef] __iomem *mem
   drivers/spi/spi-pci1xxxx.c:376:46: sparse:     got void *
   drivers/spi/spi-pci1xxxx.c:378:21: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   drivers/spi/spi-pci1xxxx.c:378:21: sparse:     expected void volatile [noderef] __iomem *mem
   drivers/spi/spi-pci1xxxx.c:378:21: sparse:     got void *
   drivers/spi/spi-pci1xxxx.c:380:21: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   drivers/spi/spi-pci1xxxx.c:380:21: sparse:     expected void volatile [noderef] __iomem *mem
   drivers/spi/spi-pci1xxxx.c:380:21: sparse:     got void *

vim +373 drivers/spi/spi-pci1xxxx.c

   362	
   363	static void pci1xxxx_spi_setup_dma_from_io(struct pci1xxxx_spi_internal *p,
   364						   dma_addr_t dma_addr, u32 len)
   365	{
   366		void *base;
   367	
   368		if (!p->hw_inst)
   369			base = p->parent->dma_offset_bar + SPI_DMA_CH0_WR_BASE;
   370		else
   371			base = p->parent->dma_offset_bar + SPI_DMA_CH1_WR_BASE;
   372	
 > 373		writel(DMA_INTR_EN, base + SPI_DMA_CH_CTL1_OFFSET);
   374		writel(len, base + SPI_DMA_CH_XFER_LEN_OFFSET);
   375		writel(lower_32_bits(dma_addr), base + SPI_DMA_CH_DAR_LO_OFFSET);
   376		writel(upper_32_bits(dma_addr), base + SPI_DMA_CH_DAR_HI_OFFSET);
   377		writel(lower_32_bits(SPI_PERI_ADDR_BASE + SPI_MST_RSP_BUF_OFFSET(p->hw_inst)),
   378		       base + SPI_DMA_CH_SAR_LO_OFFSET);
   379		writel(upper_32_bits(SPI_PERI_ADDR_BASE + SPI_MST_RSP_BUF_OFFSET(p->hw_inst)),
   380		       base + SPI_DMA_CH_SAR_HI_OFFSET);
   381	}
   382	

-- 
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https://github.com/intel/lkp-tests/wiki