From mboxrd@z Thu Jan 1 00:00:00 1970 From: broonie@kernel.org (Mark Brown) Date: Tue, 23 Apr 2013 16:15:12 +0100 Subject: [PATCH 1/3] spi: s3c64xx: added support for polling mode In-Reply-To: <1366614565-3743-2-git-send-email-ks.giri@samsung.com> References: <1366614565-3743-1-git-send-email-ks.giri@samsung.com> <1366614565-3743-2-git-send-email-ks.giri@samsung.com> Message-ID: <20130423151511.GR5019@opensource.wolfsonmicro.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Apr 22, 2013 at 12:39:23PM +0530, Girish K S wrote: > From: Girish K S > > The 64xx spi driver supports partial polling mode. > Only the last chunk of the transfer length is transferred > or recieved in polling mode. This appears to have a very noticable negative impact on SPI performance on my S3C6410 based system. Not delved into it to test why but are you sure it's not mistakenly selecting polling? -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 836 bytes Desc: Digital signature URL: