From 02eb884f4e26a8649724fdf236822d371998f2bb Mon Sep 17 00:00:00 2001 From: Tolga Ceylan Date: Fri, 1 May 2015 23:40:35 -0700 Subject: [PATCH] drivers: staging: fbtft: fbtft-bus.c: Fix different address space warning on I/O mem To fix sparse warning of incorrect type in assignment (different address space), added annotation __iomem to vmem8 and modified direct reads with ioread8(). Signed-off-by: Tolga Ceylan Signed-off-by: Greg Kroah-Hartman --- drivers/staging/fbtft/fbtft-bus.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c index 52af9cbbc2a6..912c6328fb87 100644 --- a/drivers/staging/fbtft/fbtft-bus.c +++ b/drivers/staging/fbtft/fbtft-bus.c @@ -184,7 +184,7 @@ EXPORT_SYMBOL(fbtft_write_vmem16_bus8); /* 16 bit pixel over 9-bit SPI bus: dc + high byte, dc + low byte */ int fbtft_write_vmem16_bus9(struct fbtft_par *par, size_t offset, size_t len) { - u8 *vmem8; + u8 __iomem *vmem8; u16 *txbuf16 = par->txbuf.buf; size_t remain; size_t to_copy; @@ -212,12 +212,12 @@ int fbtft_write_vmem16_bus9(struct fbtft_par *par, size_t offset, size_t len) #ifdef __LITTLE_ENDIAN for (i = 0; i < to_copy; i += 2) { - txbuf16[i] = 0x0100 | vmem8[i+1]; - txbuf16[i+1] = 0x0100 | vmem8[i]; + txbuf16[i] = 0x0100 | ioread8(vmem8 + i + 1); + txbuf16[i + 1] = 0x0100 | ioread8(vmem8 + i); } #else for (i = 0; i < to_copy; i++) - txbuf16[i] = 0x0100 | vmem8[i]; + txbuf16[i] = 0x0100 | ioread8(vmem8 + i); #endif vmem8 = vmem8 + to_copy; ret = par->fbtftops.write(par, par->txbuf.buf, to_copy*2); -- 2.34.1