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 52ECC1863 for ; Wed, 28 Dec 2022 15:38:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C8853C433EF; Wed, 28 Dec 2022 15:38:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672241921; bh=1yS5ZiO4I4cvZ+6wIElHWtR1ssr18Zd8PCaPJOAdhHQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GvD8+LAvb+NkFwQdoq528oCmH88JUlRlPCYgfV9R5uUlZH6IqcL1DXHOisyMrZ/WJ x494DolQjSE/xeqWPYjadMCK6x0qF9WgXw26Puju/sl4xMrEmOKbZTOOQ9X5gA5WTf 3ytl4uO8YwC5VRLVMd8inFhsi9biQMd/4DFGITKw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Geert Uytterhoeven , Wolfram Sang , Sasha Levin Subject: [PATCH 6.1 0305/1146] clk: renesas: r8a779f0: Fix SCIF parent clocks Date: Wed, 28 Dec 2022 15:30:44 +0100 Message-Id: <20221228144338.438355345@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144330.180012208@linuxfoundation.org> References: <20221228144330.180012208@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Wolfram Sang [ Upstream commit 2e0d7d3eabce3babae1fd66d7650e00c848a3b45 ] As serial communication requires a clean clock signal, the Serial Communication Interfaces with FIFO (SCIF) are clocked by a clock that is not affected by Spread Spectrum or Fractional Multiplication. Hence change the parent clocks for the SCIF modules from the S0D12_PER clock to the SASYNCPERD4 clock (which has the same clock rate), cfr. R-Car S4-8 Hardware User's Manual rev. 0.81. Fixes: 24aaff6a6ce4 ("clk: renesas: cpg-mssr: Add support for R-Car S4-8") Reported-by: Geert Uytterhoeven Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20221103143440.46449-3-wsa+renesas@sang-engineering.com Signed-off-by: Geert Uytterhoeven Signed-off-by: Sasha Levin --- drivers/clk/renesas/r8a779f0-cpg-mssr.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/renesas/r8a779f0-cpg-mssr.c b/drivers/clk/renesas/r8a779f0-cpg-mssr.c index f293a8a54fb2..27b668def357 100644 --- a/drivers/clk/renesas/r8a779f0-cpg-mssr.c +++ b/drivers/clk/renesas/r8a779f0-cpg-mssr.c @@ -142,10 +142,10 @@ static const struct mssr_mod_clk r8a779f0_mod_clks[] __initconst = { DEF_MOD("msiof3", 621, R8A779F0_CLK_MSO), DEF_MOD("pcie0", 624, R8A779F0_CLK_S0D2), DEF_MOD("pcie1", 625, R8A779F0_CLK_S0D2), - DEF_MOD("scif0", 702, R8A779F0_CLK_S0D12_PER), - DEF_MOD("scif1", 703, R8A779F0_CLK_S0D12_PER), - DEF_MOD("scif3", 704, R8A779F0_CLK_S0D12_PER), - DEF_MOD("scif4", 705, R8A779F0_CLK_S0D12_PER), + DEF_MOD("scif0", 702, R8A779F0_CLK_SASYNCPERD4), + DEF_MOD("scif1", 703, R8A779F0_CLK_SASYNCPERD4), + DEF_MOD("scif3", 704, R8A779F0_CLK_SASYNCPERD4), + DEF_MOD("scif4", 705, R8A779F0_CLK_SASYNCPERD4), DEF_MOD("sdhi0", 706, R8A779F0_CLK_SD0), DEF_MOD("sys-dmac0", 709, R8A779F0_CLK_S0D3_PER), DEF_MOD("sys-dmac1", 710, R8A779F0_CLK_S0D3_PER), -- 2.35.1