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authorSouptick Joarder <jrdr.linux@gmail.com>2019-07-30 22:33:20 +0300
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2019-08-19 16:52:28 +0300
commit2012f7762e8d800fbb3e33af409921bc8bade761 (patch)
tree7fba970a73eed9fc8397c6f0b8efd5059cef3194 /drivers/video
parentefbd44abaf742127a7bb2f9afcac7a526c52eccb (diff)
downloadlinux-2012f7762e8d800fbb3e33af409921bc8bade761.tar.xz
video: fbdev: viafb: Remove dead code
This is dead code since 3.15. If there is no plan to use it further, this can be removed forever. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> [b.zolnierkie: fix patch summary] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/1564515200-5020-1-git-send-email-jrdr.linux@gmail.com
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/via/via-core.c43
1 files changed, 0 insertions, 43 deletions
diff --git a/drivers/video/fbdev/via/via-core.c b/drivers/video/fbdev/via/via-core.c
index e2b2062673da..ffa2ca2d3f5e 100644
--- a/drivers/video/fbdev/via/via-core.c
+++ b/drivers/video/fbdev/via/via-core.c
@@ -221,49 +221,6 @@ void viafb_release_dma(void)
}
EXPORT_SYMBOL_GPL(viafb_release_dma);
-
-#if 0
-/*
- * Copy a single buffer from FB memory, synchronously. This code works
- * but is not currently used.
- */
-void viafb_dma_copy_out(unsigned int offset, dma_addr_t paddr, int len)
-{
- unsigned long flags;
- int csr;
-
- mutex_lock(&viafb_dma_lock);
- init_completion(&viafb_dma_completion);
- /*
- * Program the controller.
- */
- spin_lock_irqsave(&global_dev.reg_lock, flags);
- viafb_mmio_write(VDMA_CSR0, VDMA_C_ENABLE|VDMA_C_DONE);
- /* Enable ints; must happen after CSR0 write! */
- viafb_mmio_write(VDMA_MR0, VDMA_MR_TDIE);
- viafb_mmio_write(VDMA_MARL0, (int) (paddr & 0xfffffff0));
- viafb_mmio_write(VDMA_MARH0, (int) ((paddr >> 28) & 0xfff));
- /* Data sheet suggests DAR0 should be <<4, but it lies */
- viafb_mmio_write(VDMA_DAR0, offset);
- viafb_mmio_write(VDMA_DQWCR0, len >> 4);
- viafb_mmio_write(VDMA_TMR0, 0);
- viafb_mmio_write(VDMA_DPRL0, 0);
- viafb_mmio_write(VDMA_DPRH0, 0);
- viafb_mmio_write(VDMA_PMR0, 0);
- csr = viafb_mmio_read(VDMA_CSR0);
- viafb_mmio_write(VDMA_CSR0, VDMA_C_ENABLE|VDMA_C_START);
- spin_unlock_irqrestore(&global_dev.reg_lock, flags);
- /*
- * Now we just wait until the interrupt handler says
- * we're done.
- */
- wait_for_completion_interruptible(&viafb_dma_completion);
- viafb_mmio_write(VDMA_MR0, 0); /* Reset int enable */
- mutex_unlock(&viafb_dma_lock);
-}
-EXPORT_SYMBOL_GPL(viafb_dma_copy_out);
-#endif
-
/*
* Do a scatter/gather DMA copy from FB memory. You must have done
* a successful call to viafb_request_dma() first.