From nobody Fri Dec 19 09:51:50 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (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 EF90725A331 for ; Thu, 23 Oct 2025 10:32:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761215563; cv=none; b=Qrr7TGAEuj+GKnrlRQJsD5abRbIKeSTpLKIvqckPNdJqVCJh7JVqy6U3y9qmGwetmE9d3pqCraJFEudKtGuNeXzyFO4Vm+F11DvhE+dB3k3yohSR4rCaXX4VvehCLrwNeAO06MTdQl6ArK4hDxUhqNkvh78D7u4UaDxYFjr4YA4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761215563; c=relaxed/simple; bh=lSDd/4nhJnzxN3k8pgkmPWerL0Tj6/Cjw5aVAz/B1Is=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=UKL5KOhlbXdd5+pobayjtBu9Vkwaub1VFRg6LxcA57uFBp9G7iJ+36mkTxI3kizVhQegihRzmwiNZOT+Dx5Mqw2g1x/9oRN9kATmxxSX28yl7naXW2dysGb2xuaFH72naPAhXMHIJB5QIicOFNmM3+1ULoAmpDEsQqEgDj0zqU8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=euFdY/TZ; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="euFdY/TZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1761215560; bh=lSDd/4nhJnzxN3k8pgkmPWerL0Tj6/Cjw5aVAz/B1Is=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=euFdY/TZFUL6j/MkSIU1mbyRTa2dopsC5tHXusKAu71wbGGg9dbyaAx6AjbLEIxkv sRUGIVIvqJYm3KF9keTqLtwLt7K9Nvd+t+Cik+LrSHb9v9+4OJZHY+9FVeTJb/IB1u QOicJQsR1QcdZND6jcBZdLAIrTfL26jVnSj/wCVGOrAJhMoAOUI9B0jmqqJpZJUqxM OQrl0PwpETz1I+MH8kK8w4QZxsDrIcFNBG/zPKNEPjYnFOWXBHvdc3/dEimmlxVi1A 68fQ3Q8Jvbx2XiaERCje3WzdVWiyStPR5ykel98HNsOphhWBQzZFfOwXphuYnD5tCJ BzuAhjCEyFQiw== Received: from yukiji.home (amontpellier-657-1-116-247.w83-113.abo.wanadoo.fr [83.113.51.247]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: laeyraud) by bali.collaboradmins.com (Postfix) with ESMTPSA id B1BB117E1276; Thu, 23 Oct 2025 12:32:39 +0200 (CEST) From: Louis-Alexis Eyraud Date: Thu, 23 Oct 2025 12:32:28 +0200 Subject: [PATCH v11 02/11] drm/mediatek: mtk_hdmi: Improve mtk_hdmi_get_all_clk() flexibility Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251023-mediatek-drm-hdmi-v2-v11-2-7873ec4a1edf@collabora.com> References: <20251023-mediatek-drm-hdmi-v2-v11-0-7873ec4a1edf@collabora.com> In-Reply-To: <20251023-mediatek-drm-hdmi-v2-v11-0-7873ec4a1edf@collabora.com> To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Simona Vetter , Matthias Brugger , AngeloGioacchino Del Regno , CK Hu Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Louis-Alexis Eyraud X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1761215558; l=3369; i=louisalexis.eyraud@collabora.com; s=20250113; h=from:subject:message-id; bh=BiJqUOLr3Ozp+lUob6f4lgHZQwTvu+9LECr39RKK/dA=; b=Ab+LPviRxj7aLhNs+ZiN0txUlq0P7DuY0zd5ZqGd2jIbzljFi7D8g2zrfebsMLh8a4DaSToJ2 cvPfiCwoe3SDC+fKkkvGaTf6Xq3TGZpstAMx69CENDRZisAwlTVyl5d X-Developer-Key: i=louisalexis.eyraud@collabora.com; a=ed25519; pk=CHFBDB2Kqh4EHc6JIqFn69GhxJJAzc0Zr4e8QxtumuM= From: AngeloGioacchino Del Regno In preparation for splitting common bits of this driver and for introducing a new version of the MediaTek HDMI Encoder IP, improve the flexibility of function mtk_hdmi_get_all_clk() by adding a pointer to the clock names array and size of it to its parameters. Also change the array of struct clock pointers in the mtk_hdmi structure to be dynamically allocated, and allocate it in probe. Reviewed-by: CK Hu Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Louis-Alexis Eyraud --- drivers/gpu/drm/mediatek/mtk_hdmi.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek= /mtk_hdmi.c index 9a2d4a904ff12b5abfbbd47a803fc568c0a09147..691e0011a8f99093655270e2147= 17d74d1ca7121 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -159,7 +159,7 @@ struct mtk_hdmi { struct phy *phy; struct device *cec_dev; struct i2c_adapter *ddc_adpt; - struct clk *clk[MTK_HDMI_CLK_COUNT]; + struct clk **clk; struct drm_display_mode mode; bool dvi_mode; struct regmap *sys_regmap; @@ -1072,17 +1072,18 @@ static const char * const mtk_hdmi_clk_names[MTK_HD= MI_CLK_COUNT] =3D { [MTK_HDMI_CLK_AUD_SPDIF] =3D "spdif", }; =20 -static int mtk_hdmi_get_all_clk(struct mtk_hdmi *hdmi, - struct device_node *np) +static int mtk_hdmi_get_all_clk(struct mtk_hdmi *hdmi, struct device_node = *np, + const char * const *clock_names, size_t num_clocks) { int i; =20 - for (i =3D 0; i < ARRAY_SIZE(mtk_hdmi_clk_names); i++) { - hdmi->clk[i] =3D of_clk_get_by_name(np, - mtk_hdmi_clk_names[i]); + for (i =3D 0; i < num_clocks; i++) { + hdmi->clk[i] =3D of_clk_get_by_name(np, clock_names[i]); + if (IS_ERR(hdmi->clk[i])) return PTR_ERR(hdmi->clk[i]); } + return 0; } =20 @@ -1379,15 +1380,15 @@ static int mtk_hdmi_get_cec_dev(struct mtk_hdmi *hd= mi, struct device *dev, struc return 0; } =20 -static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, - struct platform_device *pdev) +static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, struct platform_= device *pdev, + const char * const *clk_names, size_t num_clocks) { struct device *dev =3D &pdev->dev; struct device_node *np =3D dev->of_node; struct device_node *remote, *i2c_np; int ret; =20 - ret =3D mtk_hdmi_get_all_clk(hdmi, np); + ret =3D mtk_hdmi_get_all_clk(hdmi, np, clk_names, num_clocks); if (ret) return dev_err_probe(dev, ret, "Failed to get clocks\n"); =20 @@ -1636,6 +1637,7 @@ static int mtk_hdmi_probe(struct platform_device *pde= v) { struct mtk_hdmi *hdmi; struct device *dev =3D &pdev->dev; + const int num_clocks =3D MTK_HDMI_CLK_COUNT; int ret; =20 hdmi =3D devm_drm_bridge_alloc(dev, struct mtk_hdmi, bridge, @@ -1646,7 +1648,11 @@ static int mtk_hdmi_probe(struct platform_device *pd= ev) hdmi->dev =3D dev; hdmi->conf =3D of_device_get_match_data(dev); =20 - ret =3D mtk_hdmi_dt_parse_pdata(hdmi, pdev); + hdmi->clk =3D devm_kcalloc(dev, num_clocks, sizeof(*hdmi->clk), GFP_KERNE= L); + if (!hdmi->clk) + return -ENOMEM; + + ret =3D mtk_hdmi_dt_parse_pdata(hdmi, pdev, mtk_hdmi_clk_names, num_clock= s); if (ret) return ret; =20 --=20 2.51.0