From mboxrd@z Thu Jan 1 00:00:00 1970 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 04A14CD3427 for ; Sun, 10 May 2026 09:58:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=DWZ4GiBEFujDrd/076IUmJSFK/5E0kNgV5LKOYyEubk=; b=MedXH9w6vv9NUs4KOC1YSvJW76 VKUTWfJWQmly6kpxSxpldV5nDT78V2N/DHwClD3YCiolXdDfASXCVz3dn1V2q9+0WDOFP2QFfw44n wnxnBUGEWSdx28NEPzbAdovDRLaxzha73SSQscEzWc3KSJmXd4999FyHBZ5c4sY2HpjQPsVl+pi/O CuZ06Xj7l73iwWijM5Br9mltB+t4s7mchGcP+LC7eyN8+K9PgqBwc1bFkcsNOjd0IOLCapCODYo9r IO7Ckq5/uegdd9hbKEZwJE1v1cwooLjf4EqqQp/bbBR9YDiURkl5udyUsjKV0OYquc2Vm7AUBKvow Zv8fKTgQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wM0v7-0000000AWKy-0yX9; Sun, 10 May 2026 09:57:57 +0000 Received: from smtp.forwardemail.net ([121.127.44.66]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wM0v2-0000000AWHY-0lSU for linux-arm-kernel@lists.infradead.org; Sun, 10 May 2026 09:57:54 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-ID: Date: Subject: Cc: To: From; q=dns/txt; s=fe-e1b5cab7be; t=1778407069; bh=DWZ4GiBEFujDrd/076IUmJSFK/5E0kNgV5LKOYyEubk=; b=e90Y/pVao2vvY+WuLwm7FHyikeREQvJLwtAjwmQkCDocx/9wYW8fcQiUOBRIzG1uvd90NNyq1 SUxLYR1rUGP4wrc/nwj+AW/sI5SXSxiO/BHSnx9Cw7iQ1GiaomRnNwoWNkHUu1c4qTw1pyNLzpO ip+CTomwKDStTMyVsh601bX+IPmqa+DDP71tU6GGXMOF0bLgeIHxrcrKxzLLZ2oflk9mLTai7Dt OgaNW9BtjCoT02t6rxUcgAnHpVe/+5RIW/I3OiRo2dOPxyPXdcAjL37rckAwD2ll8FCwhzitHkM WOehdpcnOZHk06qZG0F4zrsAzov0TJDPKsZ47RAHlEgQ== X-Forward-Email-ID: 6a00569249521910acdb9441 X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.66 X-Forward-Email-Version: 2.8.0 X-Forward-Email-Website: https://forwardemail.net X-Complaints-To: abuse@forwardemail.net X-Report-Abuse: abuse@forwardemail.net X-Report-Abuse-To: abuse@forwardemail.net From: Jonas Karlman To: Vinod Koul , Neil Armstrong , Heiko Stuebner Cc: linux-phy@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jonas Karlman Subject: [PATCH v2 1/2] phy: rockchip: inno-hdmi: Add configure() and validate() ops Date: Sun, 10 May 2026 09:57:29 +0000 Message-ID: <20260510095731.1222705-2-jonas@kwiboo.se> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260510095731.1222705-1-jonas@kwiboo.se> References: <20260510095731.1222705-1-jonas@kwiboo.se> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260510_025752_310056_51BAA5B9 X-CRM114-Status: GOOD ( 19.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The commit 10ed34d6eaaf ("phy: Add HDMI configuration options") introduced a way for HDMI PHYs to be configured through the generic phy_configure() function. This driver derives the TMDS character rate from the pixel clock and the PHY bus width setting. However, no in-tree consumer of this PHY has ever called phy_set_bus_width() to change the TMDS character rate as only 8-bit RGB output is supported by the HDMI display driver. Add configure() and validate() ops to allow consumers to configure the TMDS character rate using phy_configure(). Fallback to the deprecated way of using the PHY bus width to configure the TMDS character rate. Signed-off-by: Jonas Karlman --- Changes in v2: - Add validate() ops to validate that the TMDS rate is supported - Split out parts that remove the old workaround into a separate patch --- drivers/phy/rockchip/phy-rockchip-inno-hdmi.c | 47 ++++++++++++++++++- 1 file changed, 46 insertions(+), 1 deletion(-) diff --git a/drivers/phy/rockchip/phy-rockchip-inno-hdmi.c b/drivers/phy/rockchip/phy-rockchip-inno-hdmi.c index 1483907413fa..9cfe956fefe7 100644 --- a/drivers/phy/rockchip/phy-rockchip-inno-hdmi.c +++ b/drivers/phy/rockchip/phy-rockchip-inno-hdmi.c @@ -245,6 +245,7 @@ struct inno_hdmi_phy { struct clk *phyclk; unsigned long pixclock; unsigned long tmdsclock; + struct phy_configure_opts_hdmi hdmi_cfg; }; struct pre_pll_config { @@ -554,7 +555,12 @@ static inline void inno_update_bits(struct inno_hdmi_phy *inno, u8 reg, static unsigned long inno_hdmi_phy_get_tmdsclk(struct inno_hdmi_phy *inno, unsigned long rate) { - int bus_width = phy_get_bus_width(inno->phy); + int bus_width; + + if (inno->hdmi_cfg.tmds_char_rate) + return inno->hdmi_cfg.tmds_char_rate; + + bus_width = phy_get_bus_width(inno->phy); switch (bus_width) { case 4: @@ -602,6 +608,42 @@ static irqreturn_t inno_hdmi_phy_rk3328_irq(int irq, void *dev_id) return IRQ_HANDLED; } +static int inno_hdmi_phy_validate(struct phy *phy, enum phy_mode mode, + int submode, union phy_configure_opts *opts) +{ + const struct pre_pll_config *cfg = pre_pll_cfg_table; + unsigned long tmdsclock; + + if (!(mode == PHY_MODE_HDMI && submode == PHY_HDMI_MODE_TMDS)) + return -EINVAL; + + if (!opts->hdmi.tmds_char_rate || opts->hdmi.tmds_char_rate > 594000000) + return -EINVAL; + + tmdsclock = opts->hdmi.tmds_char_rate; + for (; cfg->pixclock != 0; cfg++) + if (cfg->pixclock == tmdsclock && cfg->tmdsclock == tmdsclock) + return 0; + + return -EINVAL; +} + +static int inno_hdmi_phy_configure(struct phy *phy, + union phy_configure_opts *opts) +{ + struct inno_hdmi_phy *inno = phy_get_drvdata(phy); + int ret; + + ret = inno_hdmi_phy_validate(phy, phy_get_mode(phy), + PHY_HDMI_MODE_TMDS, opts); + if (ret) + return ret; + + inno->hdmi_cfg = opts->hdmi; + + return 0; +} + static int inno_hdmi_phy_power_on(struct phy *phy) { struct inno_hdmi_phy *inno = phy_get_drvdata(phy); @@ -670,6 +712,8 @@ static const struct phy_ops inno_hdmi_phy_ops = { .owner = THIS_MODULE, .power_on = inno_hdmi_phy_power_on, .power_off = inno_hdmi_phy_power_off, + .configure = inno_hdmi_phy_configure, + .validate = inno_hdmi_phy_validate, }; static const @@ -1392,6 +1436,7 @@ static int inno_hdmi_phy_probe(struct platform_device *pdev) } phy_set_drvdata(inno->phy, inno); + phy_set_mode_ext(inno->phy, PHY_MODE_HDMI, PHY_HDMI_MODE_TMDS); phy_set_bus_width(inno->phy, 8); if (inno->plat_data->ops->init) { -- 2.54.0