From patchwork Tue Mar 4 01:44:07 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Ciocaltea X-Patchwork-Id: 13999845 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EB451C282D1 for ; Tue, 4 Mar 2025 02:13:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=f4bWFirgc2ZS/XjCObs+npvxFqeeY5Fbe/B8YFfx+0U=; b=cMdGjUK+YMTAD0 RKnv9KkjCqmKI/dHPZ2GmnvkwIsMACwZfAdPGT3Bkw/T+1mvDAgE6R9keE1B1sTSecSWP3PKUYHo9 reIyrFyv4sDYsXtao1ig3Jx4GVRGsBsDcWktUQXzEYIYUIXN00ijlGKX+TranMA1jtFkVF6tUP1uC GTHMUC2ybNrgXUQme+aE8QIz8n4gv1ljbz4PW2RTYruHTMhWGRgXQtitUxy5+TUEi80YGTSg/wvbw EZojKobQtfeFZh2ZVAX6PmdQEy5SKNh6Oz8wgA35fjWFXK4ZIpaFLy2gJlKxI2GFo6mIPPh1grgTh Ao5qAUWpzFZNOvaO7cBA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tpHmg-00000002sH4-2vtJ; Tue, 04 Mar 2025 02:13:26 +0000 Received: from bali.collaboradmins.com ([2a01:4f8:201:9162::2]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tpHKb-00000002o5h-49uS; Tue, 04 Mar 2025 01:44:27 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1741052664; bh=sVknEgGNvct3p8aN+CRi6/k6aF+awKULL5O/9DK0SkA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ak4uWnPZXqtzuQ1GE+TpAm/gdOwpFUg1+TvLQS8H7koUNRxZjYQ+xSUf74miLb04e KnZP5d2MhRpyvKRYn3i3XxNTODrfdGY87iM1H2KhA8PdTd2jVbhQyyTCaQeclXF5s6 4ljvESwXIUKgKEIrRhL8zdZfwZ09VlgiPPax/1qpcgsXeOd9XVx2lUK9p0eJ/FFCfu qzV0lRs8pUBp1EWWgQnQdROrb6OumxNWt7LZVQ6meN25gjlWfR+zuvE5VRB0IFfD0V J13fkfpXCiCHWT+KdpW04Ptp01E7/AKz+Kd0dUWYi0FJVz57cSyzQKahZRJpD2VBwy dUg8UMTZ7k/DQ== Received: from localhost (unknown [188.27.58.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with UTF8SMTPSA id 468E817E1023; Tue, 4 Mar 2025 02:44:24 +0100 (CET) From: Cristian Ciocaltea Date: Tue, 04 Mar 2025 03:44:07 +0200 Subject: [PATCH v4 08/12] phy: rockchip: samsung-hdptx: Provide config params validation support MIME-Version: 1.0 Message-Id: <20250304-phy-sam-hdptx-bpc-v4-8-8657847c13f7@collabora.com> References: <20250304-phy-sam-hdptx-bpc-v4-0-8657847c13f7@collabora.com> In-Reply-To: <20250304-phy-sam-hdptx-bpc-v4-0-8657847c13f7@collabora.com> To: Vinod Koul , Kishon Vijay Abraham I , Heiko Stuebner Cc: Algea Cao , Sandor Yu , Dmitry Baryshkov , Maxime Ripard , kernel@collabora.com, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250303_174426_208209_ADCF0C52 X-CRM114-Status: GOOD ( 11.49 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Implement the phy_ops.validate() callback to allow checking the PHY configuration parameters without actually applying them. Signed-off-by: Cristian Ciocaltea --- drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c index 7e1d1c10758249aa5bbddbdaae0108bba04f30df..47db1395051f5d900197871694bab90ca4d6e38e 100644 --- a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c +++ b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c @@ -1482,6 +1482,17 @@ static int rk_hdptx_phy_verify_hdmi_config(struct rk_hdptx_phy *hdptx, if (!hdmi->tmds_char_rate || hdmi->tmds_char_rate > HDMI20_MAX_RATE) return -EINVAL; + u32 bit_rate = hdmi->tmds_char_rate / 100; + int i; + + for (i = 0; i < ARRAY_SIZE(ropll_tmds_cfg); i++) + if (bit_rate == ropll_tmds_cfg[i].bit_rate) + break; + + if (i == ARRAY_SIZE(ropll_tmds_cfg) && + !rk_hdptx_phy_clk_pll_calc(bit_rate, NULL)) + return -EINVAL; + return 0; } @@ -1789,10 +1800,22 @@ static int rk_hdptx_phy_configure(struct phy *phy, union phy_configure_opts *opt return 0; } +static int rk_hdptx_phy_validate(struct phy *phy, enum phy_mode mode, + int submode, union phy_configure_opts *opts) +{ + struct rk_hdptx_phy *hdptx = phy_get_drvdata(phy); + + if (mode != PHY_MODE_DP) + return rk_hdptx_phy_verify_hdmi_config(hdptx, &opts->hdmi); + + return rk_hdptx_phy_verify_dp_config(hdptx, &opts->dp); +} + static const struct phy_ops rk_hdptx_phy_ops = { .power_on = rk_hdptx_phy_power_on, .power_off = rk_hdptx_phy_power_off, .configure = rk_hdptx_phy_configure, + .validate = rk_hdptx_phy_validate, .owner = THIS_MODULE, };