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Commit 549aaa84 authored by Sonic Zhang's avatar Sonic Zhang Committed by Bryan Wu
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[Blackfin] arch: Fix bug - Setting peripheral_map only when dma channel is UART2/3. 



Singed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent cad2ab65

arch/blackfin/kernel/bfin_dma_5xx.c

+8 −7
Original line number Diff line number Diff line
@@ -105,13 +105,14 @@ int request_dma(unsigned int channel, char *device_id) 
	mutex_unlock(&(dma_ch[channel].dmalock));



#ifdef CONFIG_BF54x

	if (channel >= CH_UART2_RX && channel <= CH_UART3_TX &&

		strncmp(device_id, "BFIN_UART", 9) == 0)

	if (channel >= CH_UART2_RX && channel <= CH_UART3_TX) {

		if (strncmp(device_id, "BFIN_UART", 9) == 0)

			dma_ch[channel].regs->peripheral_map |=

				(channel - CH_UART2_RX + 0xC);

		else

			dma_ch[channel].regs->peripheral_map |=

				(channel - CH_UART2_RX + 0x6);

	}

#endif



	dma_ch[channel].device_id = device_id;