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[89.139.223.180]) by smtp.googlemail.com with ESMTPSA id a7-20020a19ca07000000b0051189b53f93sm24005lfg.302.2024.02.10.13.53.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 Feb 2024 13:53:25 -0800 (PST) From: Michael Zaidman To: chrysh@christina-quast.de, daniel.beer@igorinstitute.com, jikos@kernel.org Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, linux-serial@vger.kernel.org, ilpo.jarvinen@linux.intel.com, johan@kernel.org, gregkh@linuxfoundation.org, equinox@diac24.net, michael.zaidman@gmail.com Subject: [PATCH v1 09/19] hid-ft260: uart: wakeup device early to not lose rx data Date: Sat, 10 Feb 2024 23:51:37 +0200 Message-Id: <20240210215147.77629-10-michael.zaidman@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240210215147.77629-1-michael.zaidman@gmail.com> References: <20240210215147.77629-1-michael.zaidman@gmail.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Waking up the ft260 device from power saving mode earlier reduces the probability of incoming data loss. Signed-off-by: Michael Zaidman --- drivers/hid/hid-ft260.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-ft260.c b/drivers/hid/hid-ft260.c index ccd20f590720..6266e4f1100d 100644 --- a/drivers/hid/hid-ft260.c +++ b/drivers/hid/hid-ft260.c @@ -1285,8 +1285,6 @@ static int ft260_uart_change_speed(struct ft260_device *port, bool wakeup_workaraund = false; int ret; - ft260_uart_wakeup(port); - memset(&req, 0, sizeof(req)); req.report = FT260_SYSTEM_SETTINGS; @@ -1529,6 +1527,9 @@ static int ft260_uart_activate(struct tty_port *tport, struct tty_struct *tty) ft260_uart_change_speed(port, &tty->termios, NULL); clear_bit(TTY_IO_ERROR, &tty->flags); + /* Wake up the chip as early as possible to not miss incoming data */ + ft260_uart_wakeup(port); + if (port->reschedule_work) { mod_timer(&port->wakeup_timer, jiffies + msecs_to_jiffies(FT260_WAKEUP_NEEDED_AFTER_MS));