From patchwork Fri Apr 8 11:22:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 12806529 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 2D0DFC433EF for ; Fri, 8 Apr 2022 11:33:20 +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=Fhzhj8f1zV4Gi/e8NYtxBUSYI5ntRytMU/0tmb+MxHc=; b=wgBOAECUJKTo7h CM+gdhAksimvJlYUR+Agvu/t4svjo/TNewNEV3B6I+omIkeFExvNgD2pkLLkczzOjiAfpCavboD0V dtSYOR0oG2sZdgAdELSGPMEbM+pTJGlUxqKzES5R1Pujp1yCEaje3+/F5EF+jdsJC+wQ2Zv/7PTvK wH+22C0Q4UKPNISV6nD/gHVth3iWzfG1l9oe2tRCzBnopDmu7bwDdCqQreiFRqC4qilEEK7rLzXd4 NqI7zt0WfStDViFfwEsRUZXt3QomaiO/0BRsCjLe82Z3PXtJtNVxFGv8mo8DXs3yYQPFcIHM6Ap65 Uu8eyN8Q7EbHIjrnIFAg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ncmrb-00GdyM-Ou; Fri, 08 Apr 2022 11:33:15 +0000 Received: from desiato.infradead.org ([90.155.92.199]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ncmht-00GYH4-49 for linux-rockchip@bombadil.infradead.org; Fri, 08 Apr 2022 11:23:13 +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=p75/r1Cwj8HqtATa44wihlQSP7jl+1nxqpzYh6m/jr0=; b=k6QHL0MT1JOhGyc3/EEW/8OTTf QJJsLIwPeHJ9loSQWEJrbhiIgF036ihlWSmwYxBLTNLOwizLrVXDvmVctzO2fyj1y60aTaYVZrSET e2iLmzPSBIAM/OLrrDAzBKpvBgfcYz1hbzDqggska1Ba7ZPb6MW4Lvvp924MxYhsKwN//vdxZi1xi sfVIbrU2UqTQwbyX4CBK9VDfYbvzcoDg9J0ScFto6PC2y/ExFQmammzQVu5oKbryWe3L7O443C//6 evhfczhIH0+BCBtfEjrOD2qzdSPVXfZQxlOAvK7fFTx4leiysYGox54QZbri2kRlhp/Fg9nMXzWlA /M4ADYyw==; 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 1ncmhe-002t9o-TS for linux-rockchip@lists.infradead.org; Fri, 08 Apr 2022 11:23:06 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ncmhT-0002K6-9B; Fri, 08 Apr 2022 13:22:47 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1ncmhT-001n4b-JA; Fri, 08 Apr 2022 13:22:46 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1ncmhO-005Z4D-ET; Fri, 08 Apr 2022 13:22:42 +0200 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 v10 13/24] drm/rockchip: dw_hdmi: Set cur_ctr to 0 always Date: Fri, 8 Apr 2022 13:22:27 +0200 Message-Id: <20220408112238.1274817-14-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220408112238.1274817-1-s.hauer@pengutronix.de> References: <20220408112238.1274817-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 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-20220408_122300_457314_71446015 X-CRM114-Status: GOOD ( 10.65 ) 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 008ab20f39ee6..5be5d1d4963cd 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c @@ -180,20 +180,8 @@ 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}, } };