From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:60900 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755320AbcJNRfF (ORCPT ); Fri, 14 Oct 2016 13:35:05 -0400 From: Philipp Zabel To: linux-media@vger.kernel.org Cc: Steve Longerbeam , Marek Vasut , Hans Verkuil , Gary Bisson , kernel@pengutronix.de, Philipp Zabel Subject: [PATCH v2 16/21] gpu: ipuv3: add ipu_csi_set_downsize Date: Fri, 14 Oct 2016 19:34:36 +0200 Message-Id: <1476466481-24030-17-git-send-email-p.zabel@pengutronix.de> In-Reply-To: <1476466481-24030-1-git-send-email-p.zabel@pengutronix.de> References: <1476466481-24030-1-git-send-email-p.zabel@pengutronix.de> Sender: linux-media-owner@vger.kernel.org List-ID: Support downsizing to 1/2 width and/or height in the CSI. Signed-off-by: Philipp Zabel --- drivers/gpu/ipu-v3/ipu-csi.c | 16 ++++++++++++++++ include/video/imx-ipu-v3.h | 1 + 2 files changed, 17 insertions(+) diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c index 06631ac..77f172e 100644 --- a/drivers/gpu/ipu-v3/ipu-csi.c +++ b/drivers/gpu/ipu-v3/ipu-csi.c @@ -527,6 +527,22 @@ void ipu_csi_set_window(struct ipu_csi *csi, struct v4l2_rect *w) } EXPORT_SYMBOL_GPL(ipu_csi_set_window); +void ipu_csi_set_downsize(struct ipu_csi *csi, bool horiz, bool vert) +{ + unsigned long flags; + u32 reg; + + spin_lock_irqsave(&csi->lock, flags); + + reg = ipu_csi_read(csi, CSI_OUT_FRM_CTRL); + reg &= ~(CSI_HORI_DOWNSIZE_EN | CSI_VERT_DOWNSIZE_EN); + reg |= (horiz ? CSI_HORI_DOWNSIZE_EN : 0) | + (vert ? CSI_VERT_DOWNSIZE_EN : 0); + ipu_csi_write(csi, reg, CSI_OUT_FRM_CTRL); + + spin_unlock_irqrestore(&csi->lock, flags); +} + void ipu_csi_set_test_generator(struct ipu_csi *csi, bool active, u32 r_value, u32 g_value, u32 b_value, u32 pix_clk) diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h index 7adeaae0..5f2f26d 100644 --- a/include/video/imx-ipu-v3.h +++ b/include/video/imx-ipu-v3.h @@ -271,6 +271,7 @@ int ipu_csi_init_interface(struct ipu_csi *csi, bool ipu_csi_is_interlaced(struct ipu_csi *csi); void ipu_csi_get_window(struct ipu_csi *csi, struct v4l2_rect *w); void ipu_csi_set_window(struct ipu_csi *csi, struct v4l2_rect *w); +void ipu_csi_set_downsize(struct ipu_csi *csi, bool horiz, bool vert); void ipu_csi_set_test_generator(struct ipu_csi *csi, bool active, u32 r_value, u32 g_value, u32 b_value, u32 pix_clk); -- 2.9.3