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[59.120.186.245]) by smtp.gmail.com with ESMTPSA id e20sm304083pfi.35.2019.06.05.19.54.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 05 Jun 2019 19:54:41 -0700 (PDT) From: "Ji-Ze Hong (Peter Hong)" X-Google-Original-From: "Ji-Ze Hong (Peter Hong)" To: johan@kernel.org Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, peter_hong@fintek.com.tw, "Ji-Ze Hong (Peter Hong)" Subject: [PATCH V1 2/6] USB: serial: f81232: Force F81534A with RS232 mode Date: Thu, 6 Jun 2019 10:54:12 +0800 Message-Id: <1559789656-15847-3-git-send-email-hpeter+linux_kernel@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1559789656-15847-1-git-send-email-hpeter+linux_kernel@gmail.com> References: <1559789656-15847-1-git-send-email-hpeter+linux_kernel@gmail.com> Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Force F81534A series UARTs with RS232 mode in port_probe(). Signed-off-by: Ji-Ze Hong (Peter Hong) --- drivers/usb/serial/f81232.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index 84efcc66aa56..75dfc0b9ef30 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -83,12 +83,22 @@ MODULE_DEVICE_TABLE(usb, id_table); #define F81232_F81232_TYPE 1 #define F81232_F81534A_TYPE 2 +/* Serial port self GPIO control, 2bytes [control&output data][input data] */ +#define F81534A_GPIO_REG 0x10e +#define F81534A_GPIO_MODE2_DIR BIT(6) /* 1: input, 0: output */ +#define F81534A_GPIO_MODE1_DIR BIT(5) +#define F81534A_GPIO_MODE0_DIR BIT(4) +#define F81534A_GPIO_MODE2_OUTPUT BIT(2) +#define F81534A_GPIO_MODE1_OUTPUT BIT(1) +#define F81534A_GPIO_MODE0_OUTPUT BIT(0) + struct f81232_private { struct mutex lock; u8 modem_control; u8 modem_status; u8 shadow_lcr; u8 device_type; + u8 gpio_mode; speed_t baud_base; struct work_struct lsr_work; struct work_struct interrupt_work; @@ -871,6 +881,11 @@ static int f81232_port_probe(struct usb_serial_port *port) switch (priv->device_type) { case F81232_F81534A_TYPE: priv->process_read_urb = f81534a_process_read_urb; + priv->gpio_mode = F81534A_GPIO_MODE2_DIR; + + /* tri-state with pull-high, default RS232 Mode */ + status = f81232_set_register(port, F81534A_GPIO_REG, + priv->gpio_mode); break; case F81232_F81232_TYPE: -- 2.7.4