Commit 6b626c77 authored by Lars Svensson's avatar Lars Svensson Committed by Greg Kroah-Hartman

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: default avatarLars Svensson <lars1.svensson@sonymobile.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4b6dc179
...@@ -179,7 +179,7 @@ EXPORT_SYMBOL(fbtft_write_vmem16_bus8); ...@@ -179,7 +179,7 @@ EXPORT_SYMBOL(fbtft_write_vmem16_bus8);
/* 16 bit pixel over 9-bit SPI bus: dc + high byte, dc + low byte */ /* 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) 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; u16 *txbuf16 = par->txbuf.buf;
size_t remain; size_t remain;
size_t to_copy; size_t to_copy;
...@@ -207,12 +207,12 @@ int fbtft_write_vmem16_bus9(struct fbtft_par *par, size_t offset, size_t len) ...@@ -207,12 +207,12 @@ int fbtft_write_vmem16_bus9(struct fbtft_par *par, size_t offset, size_t len)
#ifdef __LITTLE_ENDIAN #ifdef __LITTLE_ENDIAN
for (i = 0; i < to_copy; i += 2) { for (i = 0; i < to_copy; i += 2) {
txbuf16[i] = 0x0100 | ioread8(vmem8 + i + 1); txbuf16[i] = 0x0100 | vmem8[i + 1];
txbuf16[i + 1] = 0x0100 | ioread8(vmem8 + i); txbuf16[i + 1] = 0x0100 | vmem8[i];
} }
#else #else
for (i = 0; i < to_copy; i++) for (i = 0; i < to_copy; i++)
txbuf16[i] = 0x0100 | ioread8(vmem8 + i); txbuf16[i] = 0x0100 | vmem8[i];
#endif #endif
vmem8 = vmem8 + to_copy; vmem8 = vmem8 + to_copy;
ret = par->fbtftops.write(par, par->txbuf.buf, to_copy * 2); ret = par->fbtftops.write(par, par->txbuf.buf, to_copy * 2);
......
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