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| author |   Lars Svensson <lars1.svensson@sonymobile.com> | 2015-10-07 09:20:14 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-13 10:52:31 -0700 |
| commit | 6b626c77be5ecf34534a45bb2012f6ed0565a0a7 (patch) | |
| tree | 38aed64c4c53ad761748c11d963932c96599e727 /drivers/staging/fbtft/fbtft-bus.c | |
| parent | staging: fbtft: use alternate screen pointer (diff) | |
| download | linux-dev-6b626c77be5ecf34534a45bb2012f6ed0565a0a7.tar.xz linux-dev-6b626c77be5ecf34534a45bb2012f6ed0565a0a7.zip | |
staging: fbtft: access screen buffer directly
In fbtft-bus.c:fbtft_write_vmem16_bus9(), ioread8() is used for
accessing the provided screen array. Since screen_buffer actually
points to an ordinary buffer, instead access it directly.
Signed-off-by: Lars Svensson <lars1.svensson@sonymobile.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fbtft/fbtft-bus.c')
| -rw-r--r-- | drivers/staging/fbtft/fbtft-bus.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c index 9a95fde194d5..58449ad84f46 100644 --- a/drivers/staging/fbtft/fbtft-bus.c +++ b/drivers/staging/fbtft/fbtft-bus.c @@ -179,7 +179,7 @@ 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 __iomem *vmem8; + u8 *vmem8; u16 *txbuf16 = par->txbuf.buf; size_t remain; size_t to_copy; @@ -207,12 +207,12 @@ 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 | ioread8(vmem8 + i + 1); - txbuf16[i + 1] = 0x0100 | ioread8(vmem8 + i); + txbuf16[i] = 0x0100 | vmem8[i + 1]; + txbuf16[i + 1] = 0x0100 | vmem8[i]; } #else for (i = 0; i < to_copy; i++) - txbuf16[i] = 0x0100 | ioread8(vmem8 + i); + txbuf16[i] = 0x0100 | vmem8[i]; #endif vmem8 = vmem8 + to_copy; ret = par->fbtftops.write(par, par->txbuf.buf, to_copy * 2); |