diff options
Diffstat (limited to 'usb/usb-musb-do-not-override-dma-mode-in-channel-program.patch')
| -rw-r--r-- | usb/usb-musb-do-not-override-dma-mode-in-channel-program.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/usb/usb-musb-do-not-override-dma-mode-in-channel-program.patch b/usb/usb-musb-do-not-override-dma-mode-in-channel-program.patch new file mode 100644 index 00000000000000..3da3fdbbe3866b --- /dev/null +++ b/usb/usb-musb-do-not-override-dma-mode-in-channel-program.patch @@ -0,0 +1,39 @@ +From ajay.gupta@ti.com Thu Jul 8 11:41:23 2010 +From: Anand Gadiyar <gadiyar@ti.com> +Date: Thu, 8 Jul 2010 16:34:55 +0530 +Subject: USB: musb: do not override DMA mode in channel program +To: linux-usb@vger.kernel.org +Cc: linux-omap@vger.kernel.org, felipe.balbi@nokia.com, gregkh@suse.de, Anand Gadiyar <gadiyar@ti.com>, Ajay Kumar Gupta <ajay.gupta@ti.com> +Message-ID: <1278587095-16978-3-git-send-email-ajay.gupta@ti.com> + + +From: Anand Gadiyar <gadiyar@ti.com> + +There is no reason for the DMA channel program to override the +DMA mode passed down by its caller. Use the passed parameter +directly, and let the caller handle the decision on which mode +is to be used. + +Signed-off-by: Anand Gadiyar <gadiyar@ti.com> +Acked-by: Felipe Balbi <felipe.balbi@nokia.com> +Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> +Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> + +--- + drivers/usb/musb/musbhsdma.c | 5 +---- + 1 file changed, 1 insertion(+), 4 deletions(-) + +--- a/drivers/usb/musb/musbhsdma.c ++++ b/drivers/usb/musb/musbhsdma.c +@@ -173,10 +173,7 @@ static int dma_channel_program(struct dm + musb_channel->max_packet_sz = packet_sz; + channel->status = MUSB_DMA_STATUS_BUSY; + +- if ((mode == 1) && (len >= packet_sz)) +- configure_channel(channel, packet_sz, 1, dma_addr, len); +- else +- configure_channel(channel, packet_sz, 0, dma_addr, len); ++ configure_channel(channel, packet_sz, mode, dma_addr, len); + + return true; + } |