From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1D5CF1D2B27; Wed, 2 Oct 2024 14:38:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727879882; cv=none; b=USol9/PoTYlfxQLcIsyBOgqKICzZ13uyxr1OZvDqIvZBuB+vYKEKKUj12falvqhkOmzrr+JuKaKYBAgwpMWO+AC54D4oiNZr22+ji/hYKMjeSwpuYRwDw+/yYPm/wFjoR8QHHZb1wkHnOkAiXmRZmfPdqjHUQxBmouIbD2Odq34= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727879882; c=relaxed/simple; bh=9Nhb3fCzLLDDzzyUfYURFDkqBQ5tC3tQG92PqIKhbeo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hMoEdBDeFGm1NzKxDwSAV/8uEyuESUgivpnfkx7nQ9n9B5t2QjmiDAZFlFRTSRTvxT+QliOiLU2b4iWU7jkIjnyWltnG3+OoJLdEGP4+WlbVQqOhh4h4xBl/ZNLyOMlZPaF5rZY1iNmzYr2BaFMu3Ed2OWSIxQI0KV5AEsRkrVo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iBe7UPqN; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iBe7UPqN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3DF22C4CECD; Wed, 2 Oct 2024 14:38:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1727879881; bh=9Nhb3fCzLLDDzzyUfYURFDkqBQ5tC3tQG92PqIKhbeo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iBe7UPqNko1CFRT3upLvtTa589KNx+lZdZkAvYWbgd2N63x/ZWjsNjR/5F/zCarf5 Cclv/VFaUStcPs8asTW95Y+lpguSRK3zI4IWdjsYOcoxbfpyGTVqVRWspRkUtp6xFi W0HS5jBChON27K/1T9dTWfpmU6R4vcGLfDX224hI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Pengfei Li , Jacky Bai , Peng Fan , Abel Vesa , Sasha Levin Subject: [PATCH 6.6 263/538] clk: imx: fracn-gppll: fix fractional part of PLL getting lost Date: Wed, 2 Oct 2024 14:58:22 +0200 Message-ID: <20241002125802.638870056@linuxfoundation.org> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20241002125751.964700919@linuxfoundation.org> References: <20241002125751.964700919@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Pengfei Li [ Upstream commit 7622f888fca125ae46f695edf918798ebc0506c5 ] Fractional part of PLL gets lost after re-enabling the PLL. the MFN can NOT be automatically loaded when doing frac PLL enable/disable, So when re-enable PLL, configure mfn explicitly. Fixes: 1b26cb8a77a4 ("clk: imx: support fracn gppll") Signed-off-by: Pengfei Li Reviewed-by: Jacky Bai Signed-off-by: Peng Fan Reviewed-by: Abel Vesa Link: https://lore.kernel.org/r/20240607133347.3291040-5-peng.fan@oss.nxp.com Signed-off-by: Abel Vesa Signed-off-by: Sasha Levin --- drivers/clk/imx/clk-fracn-gppll.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/clk/imx/clk-fracn-gppll.c b/drivers/clk/imx/clk-fracn-gppll.c index 44462ab50e513..1becba2b62d0b 100644 --- a/drivers/clk/imx/clk-fracn-gppll.c +++ b/drivers/clk/imx/clk-fracn-gppll.c @@ -291,6 +291,10 @@ static int clk_fracn_gppll_prepare(struct clk_hw *hw) if (val & POWERUP_MASK) return 0; + if (pll->flags & CLK_FRACN_GPPLL_FRACN) + writel_relaxed(readl_relaxed(pll->base + PLL_NUMERATOR), + pll->base + PLL_NUMERATOR); + val |= CLKMUX_BYPASS; writel_relaxed(val, pll->base + PLL_CTRL); -- 2.43.0