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Mon, 30 Jan 2023 06:47:54 +0000 From: Sherry Sun To: gregkh@linuxfoundation.org, jirislaby@kernel.org Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, linux-imx@nxp.com Subject: [PATCH 6/6] tty: serial: fsl_lpuart: add imx8ulp support Date: Mon, 30 Jan 2023 14:44:49 +0800 Message-Id: <20230130064449.9564-7-sherry.sun@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230130064449.9564-1-sherry.sun@nxp.com> References: <20230130064449.9564-1-sherry.sun@nxp.com> X-ClientProxiedBy: SI2PR02CA0002.apcprd02.prod.outlook.com (2603:1096:4:194::22) To AS8PR04MB8404.eurprd04.prod.outlook.com (2603:10a6:20b:3f8::7) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AS8PR04MB8404:EE_|PR3PR04MB7228:EE_ X-MS-Office365-Filtering-Correlation-Id: 4be3f948-2745-462d-35ca-08db028de9df X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; 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Here add lpuart support for imx8ulp, and rx_watermark is set to 3 as imx8ulp RX FIFO depth is 8. Signed-off-by: Sherry Sun --- drivers/tty/serial/fsl_lpuart.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index c35e49a09bcc..644827e97cb0 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -252,6 +252,7 @@ enum lpuart_type { LS1021A_LPUART, LS1028A_LPUART, IMX7ULP_LPUART, + IMX8ULP_LPUART, IMX8QXP_LPUART, IMXRT1050_LPUART, }; @@ -319,6 +320,13 @@ static struct lpuart_soc_data imx7ulp_data = { .rx_watermark = 1, }; +static struct lpuart_soc_data imx8ulp_data = { + .devtype = IMX8ULP_LPUART, + .iotype = UPIO_MEM32, + .reg_off = IMX_REG_OFF, + .rx_watermark = 3, +}; + static struct lpuart_soc_data imx8qxp_data = { .devtype = IMX8QXP_LPUART, .iotype = UPIO_MEM32, @@ -337,6 +345,7 @@ static const struct of_device_id lpuart_dt_ids[] = { { .compatible = "fsl,ls1021a-lpuart", .data = &ls1021a_data, }, { .compatible = "fsl,ls1028a-lpuart", .data = &ls1028a_data, }, { .compatible = "fsl,imx7ulp-lpuart", .data = &imx7ulp_data, }, + { .compatible = "fsl,imx8ulp-lpuart", .data = &imx8ulp_data, }, { .compatible = "fsl,imx8qxp-lpuart", .data = &imx8qxp_data, }, { .compatible = "fsl,imxrt1050-lpuart", .data = &imxrt1050_data}, { /* sentinel */ } @@ -357,6 +366,11 @@ static inline bool is_imx7ulp_lpuart(struct lpuart_port *sport) return sport->devtype == IMX7ULP_LPUART; } +static inline bool is_imx8ulp_lpuart(struct lpuart_port *sport) +{ + return sport->devtype == IMX8ULP_LPUART; +} + static inline bool is_imx8qxp_lpuart(struct lpuart_port *sport) { return sport->devtype == IMX8QXP_LPUART; @@ -2691,7 +2705,7 @@ static int lpuart_global_reset(struct lpuart_port *sport) return ret; } - if (is_imx7ulp_lpuart(sport) || is_imx8qxp_lpuart(sport)) { + if (is_imx7ulp_lpuart(sport) || is_imx8ulp_lpuart(sport) || is_imx8qxp_lpuart(sport)) { /* * If the transmitter is used by earlycon, wait for transmit engine to * complete and then reset.