From patchwork Fri Mar 11 08:33:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 12777661 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E0DD2C433EF for ; Fri, 11 Mar 2022 08:43:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ofa+7YTc0nufzqLGoe43ePPoXqSLhanmpJqGTMQfL4I=; b=E1ZGlmcaqLLwtp eSH+VdoLhjQklGKyWy8t3xequviO7V8tTpUL2Eg1QRQp29oQVLmpGgEAK6SVONoqf5GW1YC9on+Ol RM5sI2PYK6WTmkoEwAWB+jOO0zsXjXnV2v6bgsYQ1xqHCyDYoxAsf1114fQt4xDorH6TWSacoKRG/ 3SuanZQG+7FFxH2wkK8ZT+lifk32JdOSNoClt/oavhCs1DVg9HkpmxTAlU671l7DRQZgSRk78Au0o QRFTLa8VumrfNS1vmmC/DFCbaxSUW9XhfuiFu9qvJieeQxNBTTZ7VPwM0ecE+yo77ocw8MjkGp6eo LxyukI3K3Y3fh3E0FAnQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nSasN-00FeZl-EY; Fri, 11 Mar 2022 08:43:55 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nSaih-00FZPt-J3 for linux-rockchip@bombadil.infradead.org; Fri, 11 Mar 2022 08:33:55 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=YinZ2zN+6g6HDQfeyvB2RGYYlTVsxcYMoFTjyV32JIU=; b=BP7JNfr3d0oicSrjk8JhAnslNq 7TdGB4ghFUztSuE9CYmX+u8PwV9i/fO79rsy9RyzbUtJRRQ1U8pRWhw5LdoSXSgk6kNHBHNBtIwZ6 wfd852dNMiHQTxRQ3fHhMDPV50xtelB1CUPKLm8uHeeJe4XP7ffu/3Ix3U27x3b42XVzTmdIJVfeZ 7wLlZiYH8IsCeOuIKj06XVXd9BOmw34MtgJcydPriOxli4smfkWPmCmSea/BmBMEr85VA8czNJHTc gFMSyy0gxY/LOEMDtrB9JGWjfKeq2OQqJibjMv9pQxl5z5nQifVJc+CDw0V60FyNaUOJPOtV84lxJ zCceQCQw==; Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by desiato.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nSaie-00HOFU-4R for linux-rockchip@lists.infradead.org; Fri, 11 Mar 2022 08:33:54 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nSaiL-0000aS-Cg; Fri, 11 Mar 2022 09:33:33 +0100 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nSaiE-0040hF-KQ; Fri, 11 Mar 2022 09:33:26 +0100 From: Sascha Hauer To: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, kernel@pengutronix.de, Andy Yan , Benjamin Gaignard , Michael Riesch , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Peter Geis , Douglas Anderson , Yakir Yang , Sascha Hauer Subject: [PATCH v8 14/24] drm/rockchip: dw_hdmi: Set cur_ctr to 0 always Date: Fri, 11 Mar 2022 09:33:13 +0100 Message-Id: <20220311083323.887372-15-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220311083323.887372-1-s.hauer@pengutronix.de> References: <20220311083323.887372-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-rockchip@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220311_083352_446663_F55A5342 X-CRM114-Status: GOOD ( 10.75 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org From: Douglas Anderson Jitter was improved by lowering the MPLL bandwidth to account for high frequency noise in the rk3288 PLL. In each case MPLL bandwidth was lowered only enough to get us a comfortable margin. We believe that lowering the bandwidth like this is safe given sufficient testing. Signed-off-by: Douglas Anderson Signed-off-by: Yakir Yang Signed-off-by: Sascha Hauer --- Notes: Changes since v3: - new patch drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c index 4f912cbea73bb..f56c79c60d149 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c @@ -181,20 +181,8 @@ static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = { static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = { /* pixelclk bpp8 bpp10 bpp12 */ { - 40000000, { 0x0018, 0x0018, 0x0018 }, - }, { - 65000000, { 0x0028, 0x0028, 0x0028 }, - }, { - 66000000, { 0x0038, 0x0038, 0x0038 }, - }, { - 74250000, { 0x0028, 0x0038, 0x0038 }, - }, { - 83500000, { 0x0028, 0x0038, 0x0038 }, - }, { - 146250000, { 0x0038, 0x0038, 0x0038 }, - }, { - 148500000, { 0x0000, 0x0038, 0x0038 }, - }, { + 600000000, { 0x0000, 0x0000, 0x0000 }, + }, { ~0UL, { 0x0000, 0x0000, 0x0000}, } };