From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Thu, 11 Jan 2018 14:28:44 +0100 Subject: [PATCH v5 2/2] media: V3s: Add support for Allwinner CSI. In-Reply-To: <1515639966-35902-1-git-send-email-yong.deng@magewell.com> References: <1515639966-35902-1-git-send-email-yong.deng@magewell.com> Message-ID: <20180111132844.mok7upqjycpx3bqm@flea.lan> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Yong, On Thu, Jan 11, 2018 at 11:06:06AM +0800, Yong Deng wrote: > Allwinner V3s SoC features two CSI module. CSI0 is used for MIPI CSI-2 > interface and CSI1 is used for parallel interface. This is not > documented in datasheet but by test and guess. > > This patch implement a v4l2 framework driver for it. > > Currently, the driver only support the parallel interface. MIPI-CSI2, > ISP's support are not included in this patch. > > Signed-off-by: Yong Deng I've needed this patch in order to fix a NULL pointer dereference: http://code.bulix.org/oz6gmb-257359?raw This is needed because while it's ok to have a NULL pointer to v4l2_subdev_pad_config when you call the subdev set_fmt with V4L2_SUBDEV_FORMAT_ACTIVE, it's not with V4L2_SUBDEV_FORMAT_TRY, and sensors will assume taht it's a valid pointer. Otherwise, Tested-by: Maxime Ripard -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: