From patchwork Wed Jan 10 10:20:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tudor Ambarus X-Patchwork-Id: 13515924 Received: from mail-wm1-f52.google.com (mail-wm1-f52.google.com [209.85.128.52]) (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 C80E14778E for ; Wed, 10 Jan 2024 10:21:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="XiaxeP1F" Received: by mail-wm1-f52.google.com with SMTP id 5b1f17b1804b1-40d8902da73so37762495e9.2 for ; Wed, 10 Jan 2024 02:21:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1704882077; x=1705486877; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=X4OrxluJS1Dxt0QsygYV4JA7ss0pHdXLycYpqP8S/nY=; b=XiaxeP1F/NrMhXsnnLE7Hr2pHbh298NywDAybFLZmrWm632DevmscaQ+QMWERiOvby XGtbUetrkmiFlSiM9wLA+UqdgnLXsroAnsJ21jjBuU2Ko7CuZVb5Fgb2MK5+nVpy9ujQ e1tZzL41uyarHCe9d3kcphhPjfUS9jVf4xVwB8tkaLka2kquTlbixIzFt5IGfXJIFJ// 8Poofs3EJCBg5Adu4UQOJdqaO/rpp3YNlgqLIDQucmev/hWnrO8McsoB9jepyfvruQwh A9xacRXOOsDENxKLPzwwjBxhLLveuh4ALxrANCMAYSw1pbSmgyqsESohQmRWjJ3G7alR DfFA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704882077; x=1705486877; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=X4OrxluJS1Dxt0QsygYV4JA7ss0pHdXLycYpqP8S/nY=; b=XeFVhEQLm30f+gHlvqQAKut/xBEQyxgKq6M9ylLkhU7TEYcjNzOe8sbC9PdgCrNrr+ QmwVv4Od1tIByd8BKdOT7dhawl5e9W3eJiAUATINBl2Cy6ueDzvrDQipphFraIXCVSLx JH/Tlv/2t3TQrR+3ozQhgucU5RWx7++uIQa7VTWmO+SkxK/vawRWScnv0WDeuSZ0WJjK WPC08JMGuuageiuPOU+lJeqlbhHUWEPn10SU979c1T9ferf7ltxbUb/jpAYdYsmg4lPt zHEj0px0MiO9g8EsDlnPpwNZWnGUitd/Jjk3K55lN6VWLtCHuAsT7UnfipyoIJjtdOSo 0V9Q== X-Gm-Message-State: AOJu0YxjxPxDF7f6PbLu3PfkfMgloBayhEKwlFesdUFFPgR+HlKrwsxl ED3pGkkiwS8tAlbJbOURF/4HFE4grS7kCA== X-Google-Smtp-Source: AGHT+IH2pHpqQ2IvcL8mLqW4mDIBGBWO/XFWarVigmK91FlJxQn+wyWXYGgkF4J4hdXMLY2WPdpvQQ== X-Received: by 2002:a05:600c:511e:b0:40e:42b4:23b6 with SMTP id o30-20020a05600c511e00b0040e42b423b6mr498393wms.55.1704882077261; Wed, 10 Jan 2024 02:21:17 -0800 (PST) Received: from ta2.c.googlers.com.com (88.140.78.34.bc.googleusercontent.com. [34.78.140.88]) by smtp.gmail.com with ESMTPSA id j7-20020a05600c190700b0040e52cac976sm1625302wmq.29.2024.01.10.02.21.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Jan 2024 02:21:16 -0800 (PST) From: Tudor Ambarus To: krzysztof.kozlowski@linaro.org, alim.akhtar@samsung.com, gregkh@linuxfoundation.org, jirislaby@kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, andre.draszik@linaro.org, peter.griffin@linaro.org, kernel-team@android.com, willmcvicker@google.com, Tudor Ambarus Subject: [PATCH 12/18] tty: serial: samsung: use TIOCSER_TEMT for tx_empty() Date: Wed, 10 Jan 2024 10:20:56 +0000 Message-ID: <20240110102102.61587-13-tudor.ambarus@linaro.org> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog In-Reply-To: <20240110102102.61587-1-tudor.ambarus@linaro.org> References: <20240110102102.61587-1-tudor.ambarus@linaro.org> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The core expects for tx_empty() either TIOCSER_TEMT when the tx is empty or 0 otherwise. Respect the core and use TIOCSER_TEMT. Signed-off-by: Tudor Ambarus --- drivers/tty/serial/samsung_tty.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c index f2413da14b1d..46fba70f3d77 100644 --- a/drivers/tty/serial/samsung_tty.c +++ b/drivers/tty/serial/samsung_tty.c @@ -990,11 +990,10 @@ static unsigned int s3c24xx_serial_tx_empty(struct uart_port *port) if (ufcon & S3C2410_UFCON_FIFOMODE) { if ((ufstat & info->tx_fifomask) || (ufstat & info->tx_fifofull)) return 0; - - return 1; + return TIOCSER_TEMT; } - return s3c24xx_serial_txempty_nofifo(port); + return s3c24xx_serial_txempty_nofifo(port) ? TIOCSER_TEMT : 0; } /* no modem control lines */