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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 869E0C00140 for ; Mon, 15 Aug 2022 19:13:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343921AbiHOTNk (ORCPT ); Mon, 15 Aug 2022 15:13:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343695AbiHOTKO (ORCPT ); Mon, 15 Aug 2022 15:10:14 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A296B2D1C8; Mon, 15 Aug 2022 11:36:28 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 3EE3960FB8; Mon, 15 Aug 2022 18:36:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47EFFC433D6; Mon, 15 Aug 2022 18:36:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660588587; bh=Sl8pAt6Q0dhidSZAmwSvNFkkV5IgZon/SaDP+uWCIr0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=n/p9KiYjA2mTR37XWRlF3GObNNJ8fTQ8rRQMo+v8xF/Po//H96Sae4HEMZydrO7il gj1lwT9MpHmOanrYd2MUeE9WU+odIt/D/NQKOZtc6bKPtY94Mrc8ZC2xzUINBtn3NA vYr7jCEAkTDSMdWYaFo1ymo9crl7U0syRKd4JRmY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Robert Marko , Bjorn Andersson , Sasha Levin Subject: [PATCH 5.15 451/779] clk: qcom: ipq8074: SW workaround for UBI32 PLL lock Date: Mon, 15 Aug 2022 20:01:35 +0200 Message-Id: <20220815180356.556661797@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Robert Marko [ Upstream commit 3401ea2856ef84f39b75f0dc5ebcaeda81cb90ec ] UBI32 Huayra PLL fails to lock in 5 us in some SoC silicon and thus it will cause the wait_for_pll() to timeout and thus return the error indicating that the PLL failed to lock. This is bug in Huayra PLL HW for which SW workaround is to set bit 26 of TEST_CTL register. This is ported from the QCA 5.4 based downstream kernel. Fixes: b8e7e519625f ("clk: qcom: ipq8074: add remaining PLL’s") Signed-off-by: Robert Marko Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20220515210048.483898-2-robimarko@gmail.com Signed-off-by: Sasha Levin --- drivers/clk/qcom/gcc-ipq8074.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clk/qcom/gcc-ipq8074.c b/drivers/clk/qcom/gcc-ipq8074.c index 1a5141da7e23..b4291ba53c78 100644 --- a/drivers/clk/qcom/gcc-ipq8074.c +++ b/drivers/clk/qcom/gcc-ipq8074.c @@ -4805,6 +4805,9 @@ static int gcc_ipq8074_probe(struct platform_device *pdev) if (IS_ERR(regmap)) return PTR_ERR(regmap); + /* SW Workaround for UBI32 Huayra PLL */ + regmap_update_bits(regmap, 0x2501c, BIT(26), BIT(26)); + clk_alpha_pll_configure(&ubi32_pll_main, regmap, &ubi32_pll_config); clk_alpha_pll_configure(&nss_crypto_pll_main, regmap, &nss_crypto_pll_config); -- 2.35.1