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 E3855217F35; Tue, 12 Aug 2025 19:20:42 +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=1755026444; cv=none; b=bZIMW+ERRRngvmPPNUoHUgdtrheJE+yRIXnn9UzIno/81NR6GrKnv0vSaSxq1tPBgNlSzc+Y4vRFgNut15wlCqdSNd66GGyNsZvezH0+5GN/IGUl3b/eqjwOO2TzBYBAmDt2x7cMwMIznTxhobtVPzzt9Rt3n1SYWgqoN6l8ZPo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755026444; c=relaxed/simple; bh=BtbrkSmZ7TYn0Vin9RK+bJ20eXeGDgsvL0Z13Zn/ItE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NetUN/itCtd5gaEHIx7U7mXsZ6KQMNVQA037qUPnZP2J2Z5qwLKLkV834NTH5YGyRRpA+CYTT1VY+wHjrwY9quPs3yCzTgkPtlCnulbreTZQBLCCnMJYi3LjgbWkTZhEc1kjnoAA69uUI6fKh/Z9rOODUEYfP8xNSD5+gIFT6uc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=bZ5IucMs; 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="bZ5IucMs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E9EC4C4CEF0; Tue, 12 Aug 2025 19:20:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755026442; bh=BtbrkSmZ7TYn0Vin9RK+bJ20eXeGDgsvL0Z13Zn/ItE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bZ5IucMs+wyhR12b64vsxW+cYgW4kzrlOR2redaMGikWFVWew8mHsnzmYozzJ96l8 RjBuMPxXvRiQiKngRXXos88OIFiv1TNBRgKsVst54L8V9chrHYgodPjPPSgcRVJRj4 HP8oVN78NuavYdHimd9d7FZY3Rs264Eql5a3U8Rk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Brian Masney , Alexandre Belloni , Sasha Levin Subject: [PATCH 6.15 339/480] rtc: ds1307: fix incorrect maximum clock rate handling Date: Tue, 12 Aug 2025 19:49:07 +0200 Message-ID: <20250812174411.422873513@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250812174357.281828096@linuxfoundation.org> References: <20250812174357.281828096@linuxfoundation.org> User-Agent: quilt/0.68 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 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Brian Masney [ Upstream commit cf6eb547a24af7ad7bbd2abe9c5327f956bbeae8 ] When ds3231_clk_sqw_round_rate() is called with a requested rate higher than the highest supported rate, it currently returns 0, which disables the clock. According to the clk API, round_rate() should instead return the highest supported rate. Update the function to return the maximum supported rate in this case. Fixes: 6c6ff145b3346 ("rtc: ds1307: add clock provider support for DS3231") Signed-off-by: Brian Masney Link: https://lore.kernel.org/r/20250710-rtc-clk-round-rate-v1-1-33140bb2278e@redhat.com Signed-off-by: Alexandre Belloni Signed-off-by: Sasha Levin --- drivers/rtc/rtc-ds1307.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 5efbe69bf5ca..c8a666de9cbe 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -1466,7 +1466,7 @@ static long ds3231_clk_sqw_round_rate(struct clk_hw *hw, unsigned long rate, return ds3231_clk_sqw_rates[i]; } - return 0; + return ds3231_clk_sqw_rates[ARRAY_SIZE(ds3231_clk_sqw_rates) - 1]; } static int ds3231_clk_sqw_set_rate(struct clk_hw *hw, unsigned long rate, -- 2.39.5