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Message-Id: <20221118122539.384993-2-brgl@bgdev.pl>
Date: Fri, 18 Nov 2022 13:25:25 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...ainline.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Vinod Koul <vkoul@...nel.org>, Alex Elder <elder@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-serial@...r.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 01/15] tty: serial: qcom-geni-serial: drop unneeded forward definitions
From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
If we shuffle the code a bit, we can drop all forward definitions of
various static functions.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
drivers/tty/serial/qcom_geni_serial.c | 79 +++++++++++++--------------
1 file changed, 37 insertions(+), 42 deletions(-)
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 83b66b73303a..9f2212e7b5ec 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -147,11 +147,6 @@ static const struct uart_ops qcom_geni_console_pops;
static const struct uart_ops qcom_geni_uart_pops;
static struct uart_driver qcom_geni_console_driver;
static struct uart_driver qcom_geni_uart_driver;
-static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop);
-static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop);
-static unsigned int qcom_geni_serial_tx_empty(struct uart_port *port);
-static void qcom_geni_serial_stop_rx(struct uart_port *uport);
-static void qcom_geni_serial_handle_rx(struct uart_port *uport, bool drop);
#define to_dev_port(ptr, member) \
container_of(ptr, struct qcom_geni_serial_port, member)
@@ -590,6 +585,11 @@ static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
return ret;
}
+static unsigned int qcom_geni_serial_tx_empty(struct uart_port *uport)
+{
+ return !readl(uport->membase + SE_GENI_TX_FIFO_STATUS);
+}
+
static void qcom_geni_serial_start_tx(struct uart_port *uport)
{
u32 irq_en;
@@ -635,25 +635,29 @@ static void qcom_geni_serial_stop_tx(struct uart_port *uport)
writel(M_CMD_CANCEL_EN, uport->membase + SE_GENI_M_IRQ_CLEAR);
}
-static void qcom_geni_serial_start_rx(struct uart_port *uport)
+static void qcom_geni_serial_handle_rx(struct uart_port *uport, bool drop)
{
- u32 irq_en;
u32 status;
+ u32 word_cnt;
+ u32 last_word_byte_cnt;
+ u32 last_word_partial;
+ u32 total_bytes;
struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
- status = readl(uport->membase + SE_GENI_STATUS);
- if (status & S_GENI_CMD_ACTIVE)
- qcom_geni_serial_stop_rx(uport);
-
- geni_se_setup_s_cmd(&port->se, UART_START_READ, 0);
-
- irq_en = readl(uport->membase + SE_GENI_S_IRQ_EN);
- irq_en |= S_RX_FIFO_WATERMARK_EN | S_RX_FIFO_LAST_EN;
- writel(irq_en, uport->membase + SE_GENI_S_IRQ_EN);
+ status = readl(uport->membase + SE_GENI_RX_FIFO_STATUS);
+ word_cnt = status & RX_FIFO_WC_MSK;
+ last_word_partial = status & RX_LAST;
+ last_word_byte_cnt = (status & RX_LAST_BYTE_VALID_MSK) >>
+ RX_LAST_BYTE_VALID_SHFT;
- irq_en = readl(uport->membase + SE_GENI_M_IRQ_EN);
- irq_en |= M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN;
- writel(irq_en, uport->membase + SE_GENI_M_IRQ_EN);
+ if (!word_cnt)
+ return;
+ total_bytes = BYTES_PER_FIFO_WORD * (word_cnt - 1);
+ if (last_word_partial && last_word_byte_cnt)
+ total_bytes += last_word_byte_cnt;
+ else
+ total_bytes += BYTES_PER_FIFO_WORD;
+ port->handle_rx(uport, total_bytes, drop);
}
static void qcom_geni_serial_stop_rx(struct uart_port *uport)
@@ -694,29 +698,25 @@ static void qcom_geni_serial_stop_rx(struct uart_port *uport)
qcom_geni_serial_abort_rx(uport);
}
-static void qcom_geni_serial_handle_rx(struct uart_port *uport, bool drop)
+static void qcom_geni_serial_start_rx(struct uart_port *uport)
{
+ u32 irq_en;
u32 status;
- u32 word_cnt;
- u32 last_word_byte_cnt;
- u32 last_word_partial;
- u32 total_bytes;
struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
- status = readl(uport->membase + SE_GENI_RX_FIFO_STATUS);
- word_cnt = status & RX_FIFO_WC_MSK;
- last_word_partial = status & RX_LAST;
- last_word_byte_cnt = (status & RX_LAST_BYTE_VALID_MSK) >>
- RX_LAST_BYTE_VALID_SHFT;
+ status = readl(uport->membase + SE_GENI_STATUS);
+ if (status & S_GENI_CMD_ACTIVE)
+ qcom_geni_serial_stop_rx(uport);
- if (!word_cnt)
- return;
- total_bytes = BYTES_PER_FIFO_WORD * (word_cnt - 1);
- if (last_word_partial && last_word_byte_cnt)
- total_bytes += last_word_byte_cnt;
- else
- total_bytes += BYTES_PER_FIFO_WORD;
- port->handle_rx(uport, total_bytes, drop);
+ geni_se_setup_s_cmd(&port->se, UART_START_READ, 0);
+
+ irq_en = readl(uport->membase + SE_GENI_S_IRQ_EN);
+ irq_en |= S_RX_FIFO_WATERMARK_EN | S_RX_FIFO_LAST_EN;
+ writel(irq_en, uport->membase + SE_GENI_S_IRQ_EN);
+
+ irq_en = readl(uport->membase + SE_GENI_M_IRQ_EN);
+ irq_en |= M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN;
+ writel(irq_en, uport->membase + SE_GENI_M_IRQ_EN);
}
static void qcom_geni_serial_handle_tx(struct uart_port *uport, bool done,
@@ -1122,11 +1122,6 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport,
qcom_geni_serial_start_rx(uport);
}
-static unsigned int qcom_geni_serial_tx_empty(struct uart_port *uport)
-{
- return !readl(uport->membase + SE_GENI_TX_FIFO_STATUS);
-}
-
#ifdef CONFIG_SERIAL_QCOM_GENI_CONSOLE
static int qcom_geni_console_setup(struct console *co, char *options)
{
--
2.37.2
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