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[23.128.96.18]) by mx.google.com with ESMTP id g3si19739291plo.138.2021.04.13.21.34.42; Tue, 13 Apr 2021 21:34:59 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@foss.st.com header.s=selector1 header.b=uRcjaPdU; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=foss.st.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347246AbhDMRlG (ORCPT + 99 others); Tue, 13 Apr 2021 13:41:06 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:10264 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232356AbhDMRk6 (ORCPT ); Tue, 13 Apr 2021 13:40:58 -0400 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 13DHWLTQ025271; Tue, 13 Apr 2021 19:40:21 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=selector1; bh=pZ9s/N4lfu05HqEWvS2/jUO/gf8ZaUn/1iPWaeBL6gE=; b=uRcjaPdUe34wNzIXpnwi73magRFgB096RjbKGaaJzULmjXgXJSdEBGdqsoLQ9azelkov hI1h/slpMONIc14wLAa6f6iwikByOLFuNubPl9/sCnGCwIPKMXkj2vRhH/UdKeuq/B4I aQBA+K9t5nAeZsuGqnB3DbNheTn6x8D1/Hk7jrjieZu22oPcFHTll5c7lqpRRO1frmjH q8fFqIXNK4vQSphrlKd1yoXl27mftv8MPTzMeKmIpAXozbX4QEVHWQRyedpAOEtruHgB mNRsoUG159HuD1iW9ViW1rpA2wPA/LSrHioZcUYw+KxrRVPCazydwzm5mzd8P6YDGRyJ MQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 37w3mbv1ar-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 13 Apr 2021 19:40:21 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 75C9810002A; Tue, 13 Apr 2021 19:40:20 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 63CA92159E9; Tue, 13 Apr 2021 19:40:20 +0200 (CEST) Received: from localhost (10.75.127.46) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 13 Apr 2021 19:40:19 +0200 From: Erwan Le Ray To: Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Maxime Coquelin , Alexandre Torgue CC: , , , , , Erwan Le Ray , Fabrice Gasnier , Valentin Caron Subject: [PATCH v2 0/4] stm32 usart add fifo threshold configuration Date: Tue, 13 Apr 2021 19:40:11 +0200 Message-ID: <20210413174015.23011-1-erwan.leray@foss.st.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG3NODE1.st.com (10.75.127.7) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.761 definitions=2021-04-13_12:2021-04-13,2021-04-13 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series adds the support for two optional DT properties to configure RX and TX FIFO thresholds: - rx-threshold - tx-threshold This replaces hard-coded 8 bytes threshold. No functional change expected if unspecified (keep 8 as default). Changes in v2: Change added properties naming and factorize it in serial.yaml as proposed by Rob Herring. Erwan Le Ray (3): dt-bindings: serial: add RX and TX FIFO properties dt-bindings: serial: stm32: override FIFO threshold properties dt-bindings: serial: 8250: update TX FIFO trigger level Fabrice Gasnier (1): serial: stm32: add FIFO threshold configuration .../devicetree/bindings/serial/8250.yaml | 1 - .../devicetree/bindings/serial/serial.yaml | 10 ++++ .../bindings/serial/st,stm32-uart.yaml | 27 +++++++++- drivers/tty/serial/stm32-usart.c | 53 ++++++++++++++++--- drivers/tty/serial/stm32-usart.h | 8 +-- 5 files changed, 85 insertions(+), 14 deletions(-) -- 2.17.1