From patchwork Fri Jan 13 09:54:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Tretter X-Patchwork-Id: 13100391 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 03743C54EBD for ; Fri, 13 Jan 2023 09:57:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241263AbjAMJ5X (ORCPT ); Fri, 13 Jan 2023 04:57:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240500AbjAMJ47 (ORCPT ); Fri, 13 Jan 2023 04:56:59 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 780E367186 for ; Fri, 13 Jan 2023 01:54:14 -0800 (PST) Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1pGGlI-0003cp-7b; Fri, 13 Jan 2023 10:54:12 +0100 From: Michael Tretter Date: Fri, 13 Jan 2023 10:54:10 +0100 Subject: [PATCH v2 04/16] media: imx-pxp: explicitly disable unused blocks MIME-Version: 1.0 Message-Id: <20230112-imx-pxp-v2-4-e2281da1db55@pengutronix.de> References: <20230112-imx-pxp-v2-0-e2281da1db55@pengutronix.de> In-Reply-To: <20230112-imx-pxp-v2-0-e2281da1db55@pengutronix.de> To: linux-media@vger.kernel.org, devicetree@vger.kernel.org, Philipp Zabel , Laurent Pinchart Cc: Michael Tretter , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Fabio Estevam , Alexander Stein , kernel@pengutronix.de, linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.11.2 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::54 X-SA-Exim-Mail-From: m.tretter@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Various multiplexers in the pipeline are not used with the currently configured data path. Disable all unused multiplexers by selecting the "no output" (3) option. The datasheet doesn't explicitly require this, but the PXP has been seen to hang after processing a few hundreds of frames otherwise. As at it, add documentation for the multiplexers that are actually relevant for the data path. Reviewed-by: Laurent Pinchart Signed-off-by: Michael Tretter Reviewed-by: Philipp Zabel --- Changelog v2: none --- drivers/media/platform/nxp/imx-pxp.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) diff --git a/drivers/media/platform/nxp/imx-pxp.c b/drivers/media/platform/nxp/imx-pxp.c index 675fd00faaac..78e778d68e64 100644 --- a/drivers/media/platform/nxp/imx-pxp.c +++ b/drivers/media/platform/nxp/imx-pxp.c @@ -729,22 +729,28 @@ static u32 pxp_data_path_ctrl0(struct pxp_ctx *ctx) u32 ctrl0; ctrl0 = 0; - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX15_SEL(0); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX15_SEL(3); + /* Bypass Dithering x3CH */ ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX14_SEL(1); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX13_SEL(0); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX13_SEL(3); + /* Select Rotation */ ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX12_SEL(0); + /* Select LUT */ ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX11_SEL(0); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX10_SEL(0); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX10_SEL(3); + /* Select MUX8 for LUT */ ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX9_SEL(1); + /* Select CSC 2 */ ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX8_SEL(0); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX7_SEL(0); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX6_SEL(0); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX5_SEL(0); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX4_SEL(0); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX7_SEL(3); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX6_SEL(3); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX5_SEL(3); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX4_SEL(3); + /* Bypass Rotation 2 */ ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX3_SEL(0); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX2_SEL(0); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX1_SEL(0); - ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX0_SEL(0); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX2_SEL(3); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX1_SEL(3); + ctrl0 |= BF_PXP_DATA_PATH_CTRL0_MUX0_SEL(3); return ctrl0; } @@ -758,8 +764,8 @@ static void pxp_set_data_path(struct pxp_ctx *ctx) ctrl0 = pxp_data_path_ctrl0(ctx); ctrl1 = 0; - ctrl1 |= BF_PXP_DATA_PATH_CTRL1_MUX17_SEL(1); - ctrl1 |= BF_PXP_DATA_PATH_CTRL1_MUX16_SEL(1); + ctrl1 |= BF_PXP_DATA_PATH_CTRL1_MUX17_SEL(3); + ctrl1 |= BF_PXP_DATA_PATH_CTRL1_MUX16_SEL(3); writel(ctrl0, dev->mmio + HW_PXP_DATA_PATH_CTRL0); writel(ctrl1, dev->mmio + HW_PXP_DATA_PATH_CTRL1);