From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F925C433E1 for ; Mon, 10 Aug 2020 15:26:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 599DE22D06 for ; Mon, 10 Aug 2020 15:26:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597073202; bh=RF1YYZcrR8jAOi1ZJRiN7u4xbfpSyq4rjhuxrTj5BHc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=utJ1Wd6Gext5oAwVGFTJHiLpLYJxKfs+i9waQsHWhRksrxvAUW5njukhwbSHLAOqw 3V0z9/vUbTLQPSeAErmiQo841GvOB248JyTDR89uonuSSRbUu3Qv263owkKwgMBUUf d70QB7NV9WrkfdMWGJnS51h5ozQriUwvDPxR9fEc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728654AbgHJP0k (ORCPT ); Mon, 10 Aug 2020 11:26:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:60598 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728374AbgHJP0i (ORCPT ); Mon, 10 Aug 2020 11:26:38 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4BAC322BEA; Mon, 10 Aug 2020 15:26:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597073197; bh=RF1YYZcrR8jAOi1ZJRiN7u4xbfpSyq4rjhuxrTj5BHc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=myUUAzb+3GD3bQrjJ8fn0ga9gOW+WQ2KjJIAfFP5BUXZ5dJWS5eNabreO2ERXL1Kg 9818bgcJfOU6LtC54rpk5KICVQsA4PpkXpnl1gDQt3UGgubXcvNJQyG/fQVp5wS1/r yzxC8MvHq2+myhKtzelYFXou81EehHUtUG2WnrFg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Adam Ford , Tomi Valkeinen , Dave Airlie , Rob Clark , Bartlomiej Zolnierkiewicz Subject: [PATCH 5.4 20/67] omapfb: dss: Fix max fclk divider for omap36xx Date: Mon, 10 Aug 2020 17:21:07 +0200 Message-Id: <20200810151810.420588550@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200810151809.438685785@linuxfoundation.org> References: <20200810151809.438685785@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Adam Ford commit 254503a2b186caa668a188dbbd7ab0d25149c0a5 upstream. The drm/omap driver was fixed to correct an issue where using a divider of 32 breaks the DSS despite the TRM stating 32 is a valid number. Through experimentation, it appears that 31 works, and it is consistent with the value used by the drm/omap driver. This patch fixes the divider for fbdev driver instead of the drm. Fixes: f76ee892a99e ("omapfb: copy omapdss & displays for omapfb") Cc: #4.5+ Signed-off-by: Adam Ford Reviewed-by: Tomi Valkeinen Cc: Dave Airlie Cc: Rob Clark [b.zolnierkie: mark patch as applicable to stable 4.5+ (was 4.9+)] Signed-off-by: Bartlomiej Zolnierkiewicz Link: https://patchwork.freedesktop.org/patch/msgid/20200630182636.439015-1-aford173@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/video/fbdev/omap2/omapfb/dss/dss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/video/fbdev/omap2/omapfb/dss/dss.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dss.c @@ -833,7 +833,7 @@ static const struct dss_features omap34x }; static const struct dss_features omap3630_dss_feats = { - .fck_div_max = 32, + .fck_div_max = 31, .dss_fck_multiplier = 1, .parent_clk_name = "dpll4_ck", .dpi_select_source = &dss_dpi_select_source_omap2_omap3,