dmaengine/amba-pl08x: Remove redundant comment and rewrite original
Similar comment is present over routine also pl08x_choose_master_bus(). Keeping one of them. Also rewrite that comment to convey message clearly. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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@ -497,9 +497,13 @@ struct pl08x_lli_build_data {
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};
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/*
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* Autoselect a master bus to use for the transfer this prefers the
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* destination bus if both available if fixed address on one bus the
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* other will be chosen
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* Autoselect a master bus to use for the transfer. Slave will be the chosen as
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* victim in case src & dest are not similarly aligned. i.e. If after aligning
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* masters address with width requirements of transfer (by sending few byte by
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* byte data), slave is still not aligned, then its width will be reduced to
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* BYTE.
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* - prefers the destination bus if both available
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* - if fixed address on one bus the other will be chosen
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*/
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static void pl08x_choose_master_bus(struct pl08x_lli_build_data *bd,
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struct pl08x_bus_data **mbus, struct pl08x_bus_data **sbus, u32 cctl)
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@ -625,11 +629,6 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x,
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/* We need to count this down to zero */
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bd.remainder = txd->len;
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/*
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* Choose bus to align to
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* - prefers destination bus if both available
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* - if fixed address on one bus chooses other
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*/
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pl08x_choose_master_bus(&bd, &mbus, &sbus, cctl);
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dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu llimax=%zu\n",
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