| Message ID | 20250612-exynos7870-dsim-v1-9-1a330bca89df@disroot.org |
|---|---|
| State | New |
| Headers | show
Received: from layka.disroot.org (layka.disroot.org [178.21.23.139]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3306729B8CE; Thu, 12 Jun 2025 15:19:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.21.23.139 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749741597; cv=none; b=VCsKn4UjXn6ays+g3l1bHnn/OBfienLhHN+RMUVSKES9lIrlHlvDVFbKBwvNA4hDEvmVS8Hu8TWXwyTGcNx09XoypcCOO9ozlFV+rfYWYsiCaGw6DekNu9H/KhX32fd5k4K8ZhHyBJ3qefl0UDOE9hOOt2L4l+MVc+LzGn1UfIA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749741597; c=relaxed/simple; bh=cbcjcKOlSDiXuN1ZryxTPjxHoMCH5EADuQCdyG2cINs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=hD2yjUkTI6zyDkQvP4p9O3QNO2xXO8aEXFfRprFJ4v3MwS6fa2V0x3ROLo0QE/tmtzOKMtB6Z2xB7IVMGQf7eOyTlz9w9StqlLC2Zxde1icrjfSX2jy8Utfru1yJrvHqaZd/bIl2l+UOgtazaSxbetkTN70zdKKGT02DkheXvVg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org; spf=pass smtp.mailfrom=disroot.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b=I7aIZh6L; arc=none smtp.client-ip=178.21.23.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=disroot.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b="I7aIZh6L" Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id B246825FB3; Thu, 12 Jun 2025 17:19:54 +0200 (CEST) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id L9C6iqa3FDfA; Thu, 12 Jun 2025 17:19:54 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1749741594; bh=cbcjcKOlSDiXuN1ZryxTPjxHoMCH5EADuQCdyG2cINs=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=I7aIZh6Ln545sq0unm1sphOQFrhraXVVGY0qJ9f1qHb6rgkTD1MKaaPDlrOh76eXy 3arDXBu/Y/9SmV6QiK/P4JbHat4qGTvxLNMN6+gmj7iJDtl5qrh/WK+BRwgUwddmE9 UX3CZoiw1fGKKxyWj+S90qOOCZOekNJg/tpmYOwgGOe9jQznHGRubUmziPLU6CtYZD SCn3EzGATpmgQOvUt4adeYZM2Rtv+DGo0hc76JhoFMZRPwLQytUIji9IBKeJYlQ8Ck 7zhCHZoXEjsPBoNatdNOANAFsrrZhdja3EYKBx/zP4EW/vefEPFu9MmIxlSz+57icy WY46IgqVm+tAQ== From: Kaustabh Chakraborty <kauschluss@disroot.org> Date: Thu, 12 Jun 2025 20:48:13 +0530 Subject: [PATCH 09/12] drm/bridge: samsung-dsim: increase timeout value for PLL_STABLE Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: <linux-samsung-soc.vger.kernel.org> List-Subscribe: <mailto:linux-samsung-soc+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-samsung-soc+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250612-exynos7870-dsim-v1-9-1a330bca89df@disroot.org> References: <20250612-exynos7870-dsim-v1-0-1a330bca89df@disroot.org> In-Reply-To: <20250612-exynos7870-dsim-v1-0-1a330bca89df@disroot.org> To: Inki Dae <inki.dae@samsung.com>, Jagan Teki <jagan@amarulasolutions.com>, Marek Szyprowski <m.szyprowski@samsung.com>, Andrzej Hajda <andrzej.hajda@intel.com>, Neil Armstrong <neil.armstrong@linaro.org>, Robert Foss <rfoss@kernel.org>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@gmail.com>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>, Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, Conor Dooley <conor+dt@kernel.org>, Seung-Woo Kim <sw0312.kim@samsung.com>, Kyungmin Park <kyungmin.park@samsung.com>, Krzysztof Kozlowski <krzk@kernel.org>, Alim Akhtar <alim.akhtar@samsung.com> Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Kaustabh Chakraborty <kauschluss@disroot.org> X-Developer-Signature: v=1; a=ed25519-sha256; t=1749741499; l=926; i=kauschluss@disroot.org; s=20250202; h=from:subject:message-id; bh=cbcjcKOlSDiXuN1ZryxTPjxHoMCH5EADuQCdyG2cINs=; b=tiIUwQi6DLbTe77YgBJLRkD2Oe6Q6xWPTXRYMY/gZ9JE/8+RjbNwurwr9+FECVQNxZx9ijXlo 38E3959WWPgDBF5hnJ1jpi9uvHuZh8mqko4a4TTPwBQdpQsDGOOkqyZ X-Developer-Key: i=kauschluss@disroot.org; a=ed25519; pk=h2xeR+V2I1+GrfDPAhZa3M+NWA0Cnbdkkq1bH3ct1hE= |
| Series |
Support for Exynos7870 DSIM bridge
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expand
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diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index 5787746c63035a94c0b8b7497df61bb1e69656cd..50dcdb9b81f68098936fbb3f121a0010b11cd8dd 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -751,7 +751,7 @@ static unsigned long samsung_dsim_set_pll(struct samsung_dsim *dsi, samsung_dsim_write(dsi, DSIM_PLLCTRL_REG, reg); - timeout = 1000; + timeout = 3000; do { if (timeout-- == 0) { dev_err(dsi->dev, "PLL failed to stabilize\n");
Exynos7870's DSIM requires more time to stabilize its PLL. The current timeout value, 1000, doesn't suffice. Increase the value to 3000, which is just about enough as observed experimentally. Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org> --- drivers/gpu/drm/bridge/samsung-dsim.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)