dma: imx-sdma: Add new dma type for ssi dual fifo script
This patch adds a new DMA_TYPE for SSI dual FIFO script, included in SDMA firmware version 2. This script would allow SSI use dual fifo mode to transimit/receive data without occasional hardware underrun/overrun. Signed-off-by: Nicolin Chen <b42378@freescale.com> Acked-by: Kumar Gala <galak@codeaurora.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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@ -42,6 +42,7 @@ The full ID of peripheral types can be found below.
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19 IPU Memory
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20 ASRC
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21 ESAI
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22 SSI Dual FIFO (needs firmware ver >= 2)
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The third cell specifies the transfer priority as below.
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@ -725,6 +725,10 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
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per_2_emi = sdma->script_addrs->app_2_mcu_addr;
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emi_2_per = sdma->script_addrs->mcu_2_app_addr;
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break;
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case IMX_DMATYPE_SSI_DUAL:
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per_2_emi = sdma->script_addrs->ssish_2_mcu_addr;
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emi_2_per = sdma->script_addrs->mcu_2_ssish_addr;
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break;
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case IMX_DMATYPE_SSI_SP:
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case IMX_DMATYPE_MMC:
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case IMX_DMATYPE_SDHC:
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@ -39,6 +39,7 @@ enum sdma_peripheral_type {
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IMX_DMATYPE_IPU_MEMORY, /* IPU Memory */
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IMX_DMATYPE_ASRC, /* ASRC */
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IMX_DMATYPE_ESAI, /* ESAI */
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IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */
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};
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enum imx_dma_prio {
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