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 39E682459FF; Mon, 23 Jun 2025 13:13:40 +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=1750684420; cv=none; b=MuHkKOtcOV6dsQX7ofdRxyX8xgNQiNetjDVlsutyywzowBoM0xRiZy49YQCvMZdC2eQJgOE6L37UAuOf/XdGE8FsutPdOeMzI7TsJwXGFFyY66rI+4L8qO85Xs1bvES+h9qGIlX4MIO0lZyxZ1vdfpxtQ6vxiBrdvUuXUCKeHYY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750684420; c=relaxed/simple; bh=1Crsd2P+Dsz1gb2RPJkbXgmM+7Owv0Byezgx2+8ZTyA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=J3X0DI5d/p1faXmBNZG8tGIZrSvIxVOMx5p4XGVdMW9fiA3X5hCIy5Flsldry3kwRb9334Mv496ezjPZu3e1nJ7vIfwT957tDbJGZLfhsadaowyzYTM4ZEKcMlk+FQjN5yZIgy+XwFLw9mmnra6lkLyeQh6r30SfqP9GE8igiuQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VznEsNiE; 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="VznEsNiE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B81BAC4CEEA; Mon, 23 Jun 2025 13:13:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750684420; bh=1Crsd2P+Dsz1gb2RPJkbXgmM+7Owv0Byezgx2+8ZTyA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VznEsNiEZIiERiXfubfrb4/ANqmLvYdn+EQXkbvcLMMU7+q0uEJ6eOm9aU6mjy2Nl W/xRjQdcxZDcR+pusVffSMo91jowyFNscfWgEs7B4bJtVcmQYn/9GZBOFSduF8EsZY Uk+Ycn0ZarFAypPhe3hTaVbVtEWFIrVJFzkzQz1k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sakari Ailus , Laurent Pinchart , Hans Verkuil Subject: [PATCH 6.15 061/592] media: ccs-pll: Start VT pre-PLL multiplier search from correct value Date: Mon, 23 Jun 2025 15:00:19 +0200 Message-ID: <20250623130701.708139592@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130700.210182694@linuxfoundation.org> References: <20250623130700.210182694@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: Sakari Ailus commit 06d2d478b09e6764fb6161d1621fc10d9f0f2860 upstream. The ccs_pll_calculate_vt_tree() function does a search over possible VT PLL configurations to find the "best" one. If the sensor does not support odd pre-PLL divisors and the minimum value (with constraints) isn't 1, other odd values could be errorneously searched (and selected) for the pre-PLL divisor. Fix this. Fixes: 415ddd993978 ("media: ccs-pll: Split limits and PLL configuration into front and back parts") Cc: stable@vger.kernel.org Signed-off-by: Sakari Ailus Reviewed-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman --- drivers/media/i2c/ccs-pll.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/media/i2c/ccs-pll.c +++ b/drivers/media/i2c/ccs-pll.c @@ -397,6 +397,8 @@ static int ccs_pll_calculate_vt_tree(str min_pre_pll_clk_div = max_t(u16, min_pre_pll_clk_div, pll->ext_clk_freq_hz / lim_fr->max_pll_ip_clk_freq_hz); + if (!(pll->flags & CCS_PLL_FLAG_EXT_IP_PLL_DIVIDER)) + min_pre_pll_clk_div = clk_div_even(min_pre_pll_clk_div); dev_dbg(dev, "vt min/max_pre_pll_clk_div: %u,%u\n", min_pre_pll_clk_div, max_pre_pll_clk_div);