diff for duplicates of <20150319095927.GX32683@intel.com> diff --git a/a/1.txt b/N1/1.txt index 1cc36bc..45d981b 100644 --- a/a/1.txt +++ b/N1/1.txt @@ -19,7 +19,7 @@ On Thu, Mar 19, 2015 at 08:12:57AM +0000, yoshihiro shimoda wrote: > This is because that a usb peripheral driver (this is one of a client driver) > will handle a single buffer to transfer data. So, the usb peripheral driver will > use dmaengine_prep_slave_single(). -> Also, if this usb-dmac driver handles sg_len = 1 only, this driver code becomes more simple. +> Also, if this usb-dmac driver handles sg_len == 1 only, this driver code becomes more simple. Well having an assumption like this is not a reight design. There is nothing in hardware which prevents you from supporting > 1 sg_len right. @@ -40,10 +40,11 @@ drivers.. > > can you explain this comment? > > I'm sorry for the lack comment. This is related to the following: -> http://thread.gmane.org/gmane.linux.drivers.devicetree/109578/focusD468 -> ==== extract from the email =====> This USB-DMAC has a function to detect a USB specific packet (called short-length-packet). +> http://thread.gmane.org/gmane.linux.drivers.devicetree/109578/focus=44468 +> ======= extract from the email =========== +> This USB-DMAC has a function to detect a USB specific packet (called short-length-packet). > If the USB-DMAC detects it, the USB-DMAC assumes the USB-DMAC completes the transfer. -> ===================== +> ========================================== > > So, a usb peripheral driver (this is one of a client driver) will call > dmaengine_tx_status() after the USB-DMAC completes the transfer. @@ -147,3 +148,8 @@ On top of that you should free/disable the irq as well -- ~Vinod + +-- +To unsubscribe from this list: send the line "unsubscribe devicetree" in +the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org +More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/a/content_digest b/N1/content_digest index 73bc1df..6a1ab3f 100644 --- a/a/content_digest +++ b/N1/content_digest @@ -3,9 +3,9 @@ "ref\020150318082215.GF32683@intel.com\0" "ref\0SIXPR06MB33355F6F0532539A23ED8A9D8010@SIXPR06MB333.apcprd06.prod.outlook.com\0" "ref\0SIXPR06MB33355F6F0532539A23ED8A9D8010-ptTgG45MbEnBsD+8QL/kzr9PrO6axcR4XA4E9RH9d+qIuWR1G4zioA@public.gmane.org\0" - "From\0Vinod Koul <vinod.koul@intel.com>\0" + "From\0Vinod Koul <vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>\0" "Subject\0Re: [PATCH v2 2/2] dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver\0" - "Date\0Thu, 19 Mar 2015 10:11:27 +0000\0" + "Date\0Thu, 19 Mar 2015 15:29:27 +0530\0" "To\0yoshihiro shimoda <yoshihiro.shimoda.uh-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>\0" "Cc\0dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org <dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>" laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org <laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org> @@ -42,7 +42,7 @@ "> This is because that a usb peripheral driver (this is one of a client driver)\n" "> will handle a single buffer to transfer data. So, the usb peripheral driver will\n" "> use dmaengine_prep_slave_single().\n" - "> Also, if this usb-dmac driver handles sg_len = 1 only, this driver code becomes more simple.\n" + "> Also, if this usb-dmac driver handles sg_len == 1 only, this driver code becomes more simple.\n" "Well having an assumption like this is not a reight design. There is nothing\n" "in hardware which prevents you from supporting > 1 sg_len right.\n" "\n" @@ -63,10 +63,11 @@ "> > can you explain this comment?\n" "> \n" "> I'm sorry for the lack comment. This is related to the following:\n" - "> http://thread.gmane.org/gmane.linux.drivers.devicetree/109578/focusD468\n" - "> ==== extract from the email =====> This USB-DMAC has a function to detect a USB specific packet (called short-length-packet).\n" + "> http://thread.gmane.org/gmane.linux.drivers.devicetree/109578/focus=44468\n" + "> ======= extract from the email ===========\n" + "> This USB-DMAC has a function to detect a USB specific packet (called short-length-packet).\n" "> If the USB-DMAC detects it, the USB-DMAC assumes the USB-DMAC completes the transfer.\n" - "> =====================\n" + "> ==========================================\n" "> \n" "> So, a usb peripheral driver (this is one of a client driver) will call\n" "> dmaengine_tx_status() after the USB-DMAC completes the transfer.\n" @@ -169,6 +170,11 @@ "On top of that you should free/disable the irq as well\n" "\n" "-- \n" - ~Vinod + "~Vinod\n" + "\n" + "--\n" + "To unsubscribe from this list: send the line \"unsubscribe devicetree\" in\n" + "the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org\n" + More majordomo info at http://vger.kernel.org/majordomo-info.html -0c16ec46a355963f148f81a36125e9968defe7c3e9f5eae2d4f5c1d40ef0f5ca +b45e8d1065ee48cc6bc66271ab7835cc83b3d7d221f406b2df6ef99f6d65f278
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