From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Mon, 21 Feb 2011 11:09:05 +0000 Subject: [PATCH 5/5] mmc: sdhci: add quirk SDHCI_QUIRK_FIX_NO_INT_IN_MULTI_BLK_IO In-Reply-To: <20110221104608.GF2616@pengutronix.de> References: <1298282095-2279-1-git-send-email-richard.zhao@freescale.com> <1298282095-2279-5-git-send-email-richard.zhao@freescale.com> <20110221100439.GE2616@pengutronix.de> <010C9052C42A00499CE76D637FA5EE900C579F@039-SN1MPN1-001.039d.mgd.msft.net> <20110221104608.GF2616@pengutronix.de> Message-ID: <20110221110905.GL14495@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Feb 21, 2011 at 11:46:08AM +0100, Wolfram Sang wrote: > > > > - if (cpu_is_mx35() || cpu_is_mx51()) > > > > + if (cpu_is_mx53()) > > > > + host->quirks |= SDHCI_QUIRK_FIX_NO_INT_IN_MULTI_BLK_IO; > > > > > > Have you tried it doing it via IO-accessors? > > Richard Zhu: This quirk is used to fix a mechanism problem in the MMC CMDs execution procedure. > > It would be very abrupt and ugly, if the IO-accessors are added into these original procedures. > > Please don't get it personal, but IMHO it is pretty ugly the way it is > now. This quirk is very imx-specific and calling something like > SDHCI_VENDOR_SPEC in sdhci.c looks clearly wrong to me. By the way, what > does this bit do, the description doesn't say so? SDHCI_QUIRK_FIX_NO_INT_IN_MULTI_BLK_IO is rather too verbose. Isn't there a shorter version which could be used? SDHCI_QUIRK_SDIO_MULTIBLK_INT maybe?