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Mon, 3 Mar 2025 12:44:13 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTPS id 453uakx58a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 03 Mar 2025 12:44:13 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 523CiDWd015351; Mon, 3 Mar 2025 12:44:13 GMT Received: from hu-devc-hyd-u22-c.qualcomm.com ([10.213.97.252]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTPS id 523CiDEe015347 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 03 Mar 2025 12:44:13 +0000 Received: by hu-devc-hyd-u22-c.qualcomm.com (Postfix, from userid 4047106) id 9F52F53B; Mon, 3 Mar 2025 18:14:12 +0530 (+0530) From: Viken Dadhaniya To: andi.shyti@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, gregkh@linuxfoundation.org, jirislaby@kernel.org, broonie@kernel.or, andersson@kernel.org, konradybcio@kernel.org, johan+linaro@kernel.org, dianders@chromium.org, agross@kernel.org, linux-arm-msm@vger.kernel.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-spi@vger.kernel.org Cc: quic_msavaliy@quicinc.com, quic_anupkulk@quicinc.com, Viken Dadhaniya Subject: [PATCH v3 9/9] serial: qcom-geni: Load UART qup Firmware from linux side Date: Mon, 3 Mar 2025 18:13:49 +0530 Message-Id: <20250303124349.3474185-10-quic_vdadhani@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250303124349.3474185-1-quic_vdadhani@quicinc.com> References: <20250303124349.3474185-1-quic_vdadhani@quicinc.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: BzNceNcfbAGu42Z79uJP8K0ArH62ooyh X-Proofpoint-ORIG-GUID: BzNceNcfbAGu42Z79uJP8K0ArH62ooyh X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-03_07,2025-03-03_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 adultscore=0 mlxscore=0 spamscore=0 malwarescore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502100000 definitions=main-2503030098 Add provision to load firmware of Serial engine for UART protocol from Linux Execution Environment on running on APPS processor. Co-developed-by: Mukesh Kumar Savaliya Signed-off-by: Mukesh Kumar Savaliya Signed-off-by: Viken Dadhaniya --- v2 -> v3: - Load firmware only if the protocol is invalid. v2 Link: https://lore.kernel.org/linux-arm-msm/20250124105309.295769-9-quic_vdadhani@quicinc.com/ v1 -> v2: - No change. v1 Link: https://lore.kernel.org/linux-arm-msm/20241204150326.1470749-8-quic_vdadhani@quicinc.com/ --- --- drivers/tty/serial/qcom_geni_serial.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index a80ce7aaf309..ae66c5f673a6 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -1145,7 +1145,13 @@ static int qcom_geni_serial_port_setup(struct uart_port *uport) int ret; proto = geni_se_read_proto(&port->se); - if (proto != GENI_SE_UART) { + if (proto == GENI_SE_INVALID_PROTO) { + ret = geni_load_se_firmware(&port->se, GENI_SE_UART); + if (ret) { + dev_err(uport->dev, "UART firmware load failed ret: %d\n", ret); + return ret; + } + } else if (proto != GENI_SE_UART) { dev_err(uport->dev, "Invalid FW loaded, proto: %d\n", proto); return -ENXIO; }