6.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sherry Sun sherry.sun@nxp.com
[ Upstream commit b6a8f6ab2c53e5ea3c7f2a3978db378a89bb7595 ]
Use u32 and u8 rather than unsigned long or unsigned char for register variables for clarity and consistency.
Signed-off-by: Sherry Sun sherry.sun@nxp.com Link: https://lore.kernel.org/r/20250312023904.1343351-2-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Stable-dep-of: e98ab45ec518 ("tty: serial: lpuart: only disable CTS instead of overwriting the whole UARTMODIR register") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/serial/fsl_lpuart.c | 93 ++++++++++++++++----------------- 1 file changed, 46 insertions(+), 47 deletions(-)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 433cf2267e162..1afcfc40079d5 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -441,7 +441,7 @@ static unsigned int lpuart_get_baud_clk_rate(struct lpuart_port *sport)
static void lpuart_stop_tx(struct uart_port *port) { - unsigned char temp; + u8 temp;
temp = readb(port->membase + UARTCR2); temp &= ~(UARTCR2_TIE | UARTCR2_TCIE); @@ -450,7 +450,7 @@ static void lpuart_stop_tx(struct uart_port *port)
static void lpuart32_stop_tx(struct uart_port *port) { - unsigned long temp; + u32 temp;
temp = lpuart32_read(port, UARTCTRL); temp &= ~(UARTCTRL_TIE | UARTCTRL_TCIE); @@ -459,7 +459,7 @@ static void lpuart32_stop_tx(struct uart_port *port)
static void lpuart_stop_rx(struct uart_port *port) { - unsigned char temp; + u8 temp;
temp = readb(port->membase + UARTCR2); writeb(temp & ~UARTCR2_RE, port->membase + UARTCR2); @@ -467,7 +467,7 @@ static void lpuart_stop_rx(struct uart_port *port)
static void lpuart32_stop_rx(struct uart_port *port) { - unsigned long temp; + u32 temp;
temp = lpuart32_read(port, UARTCTRL); lpuart32_write(port, temp & ~UARTCTRL_RE, UARTCTRL); @@ -642,7 +642,7 @@ static int lpuart_poll_init(struct uart_port *port) struct lpuart_port *sport = container_of(port, struct lpuart_port, port); unsigned long flags; - unsigned char temp; + u8 temp;
sport->port.fifosize = 0;
@@ -752,7 +752,7 @@ static inline void lpuart_transmit_buffer(struct lpuart_port *sport) static inline void lpuart32_transmit_buffer(struct lpuart_port *sport) { struct tty_port *tport = &sport->port.state->port; - unsigned long txcnt; + u32 txcnt; unsigned char c;
if (sport->port.x_char) { @@ -789,7 +789,7 @@ static void lpuart_start_tx(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); - unsigned char temp; + u8 temp;
temp = readb(port->membase + UARTCR2); writeb(temp | UARTCR2_TIE, port->membase + UARTCR2); @@ -806,7 +806,7 @@ static void lpuart_start_tx(struct uart_port *port) static void lpuart32_start_tx(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); - unsigned long temp; + u32 temp;
if (sport->lpuart_dma_tx_use) { if (!lpuart_stopped_or_empty(port)) @@ -839,8 +839,8 @@ static unsigned int lpuart_tx_empty(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); - unsigned char sr1 = readb(port->membase + UARTSR1); - unsigned char sfifo = readb(port->membase + UARTSFIFO); + u8 sr1 = readb(port->membase + UARTSR1); + u8 sfifo = readb(port->membase + UARTSFIFO);
if (sport->dma_tx_in_progress) return 0; @@ -855,9 +855,9 @@ static unsigned int lpuart32_tx_empty(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); - unsigned long stat = lpuart32_read(port, UARTSTAT); - unsigned long sfifo = lpuart32_read(port, UARTFIFO); - unsigned long ctrl = lpuart32_read(port, UARTCTRL); + u32 stat = lpuart32_read(port, UARTSTAT); + u32 sfifo = lpuart32_read(port, UARTFIFO); + u32 ctrl = lpuart32_read(port, UARTCTRL);
if (sport->dma_tx_in_progress) return 0; @@ -884,7 +884,7 @@ static void lpuart_rxint(struct lpuart_port *sport) { unsigned int flg, ignored = 0, overrun = 0; struct tty_port *port = &sport->port.state->port; - unsigned char rx, sr; + u8 rx, sr;
uart_port_lock(&sport->port);
@@ -961,7 +961,7 @@ static void lpuart32_rxint(struct lpuart_port *sport) { unsigned int flg, ignored = 0; struct tty_port *port = &sport->port.state->port; - unsigned long rx, sr; + u32 rx, sr; bool is_break;
uart_port_lock(&sport->port); @@ -1039,7 +1039,7 @@ static void lpuart32_rxint(struct lpuart_port *sport) static irqreturn_t lpuart_int(int irq, void *dev_id) { struct lpuart_port *sport = dev_id; - unsigned char sts; + u8 sts;
sts = readb(sport->port.membase + UARTSR1);
@@ -1113,7 +1113,7 @@ static void lpuart_copy_rx_to_tty(struct lpuart_port *sport) int count, copied;
if (lpuart_is_32(sport)) { - unsigned long sr = lpuart32_read(&sport->port, UARTSTAT); + u32 sr = lpuart32_read(&sport->port, UARTSTAT);
if (sr & (UARTSTAT_PE | UARTSTAT_FE)) { /* Clear the error flags */ @@ -1125,10 +1125,10 @@ static void lpuart_copy_rx_to_tty(struct lpuart_port *sport) sport->port.icount.frame++; } } else { - unsigned char sr = readb(sport->port.membase + UARTSR1); + u8 sr = readb(sport->port.membase + UARTSR1);
if (sr & (UARTSR1_PE | UARTSR1_FE)) { - unsigned char cr2; + u8 cr2;
/* Disable receiver during this operation... */ cr2 = readb(sport->port.membase + UARTCR2); @@ -1279,7 +1279,7 @@ static void lpuart32_dma_idleint(struct lpuart_port *sport) static irqreturn_t lpuart32_int(int irq, void *dev_id) { struct lpuart_port *sport = dev_id; - unsigned long sts, rxcount; + u32 sts, rxcount;
sts = lpuart32_read(&sport->port, UARTSTAT); rxcount = lpuart32_read(&sport->port, UARTWATER); @@ -1411,12 +1411,12 @@ static inline int lpuart_start_rx_dma(struct lpuart_port *sport) dma_async_issue_pending(chan);
if (lpuart_is_32(sport)) { - unsigned long temp = lpuart32_read(&sport->port, UARTBAUD); + u32 temp = lpuart32_read(&sport->port, UARTBAUD);
lpuart32_write(&sport->port, temp | UARTBAUD_RDMAE, UARTBAUD);
if (sport->dma_idle_int) { - unsigned long ctrl = lpuart32_read(&sport->port, UARTCTRL); + u32 ctrl = lpuart32_read(&sport->port, UARTCTRL);
lpuart32_write(&sport->port, ctrl | UARTCTRL_ILIE, UARTCTRL); } @@ -1482,7 +1482,7 @@ static int lpuart32_config_rs485(struct uart_port *port, struct ktermios *termio struct lpuart_port *sport = container_of(port, struct lpuart_port, port);
- unsigned long modem = lpuart32_read(&sport->port, UARTMODIR) + u32 modem = lpuart32_read(&sport->port, UARTMODIR) & ~(UARTMODIR_TXRTSPOL | UARTMODIR_TXRTSE); u32 ctrl;
@@ -1577,7 +1577,7 @@ static void lpuart32_set_mctrl(struct uart_port *port, unsigned int mctrl)
static void lpuart_break_ctl(struct uart_port *port, int break_state) { - unsigned char temp; + u8 temp;
temp = readb(port->membase + UARTCR2) & ~UARTCR2_SBK;
@@ -1589,7 +1589,7 @@ static void lpuart_break_ctl(struct uart_port *port, int break_state)
static void lpuart32_break_ctl(struct uart_port *port, int break_state) { - unsigned long temp; + u32 temp;
temp = lpuart32_read(port, UARTCTRL);
@@ -1623,8 +1623,7 @@ static void lpuart32_break_ctl(struct uart_port *port, int break_state)
static void lpuart_setup_watermark(struct lpuart_port *sport) { - unsigned char val, cr2; - unsigned char cr2_saved; + u8 val, cr2, cr2_saved;
cr2 = readb(sport->port.membase + UARTCR2); cr2_saved = cr2; @@ -1657,7 +1656,7 @@ static void lpuart_setup_watermark(struct lpuart_port *sport)
static void lpuart_setup_watermark_enable(struct lpuart_port *sport) { - unsigned char cr2; + u8 cr2;
lpuart_setup_watermark(sport);
@@ -1668,8 +1667,7 @@ static void lpuart_setup_watermark_enable(struct lpuart_port *sport)
static void lpuart32_setup_watermark(struct lpuart_port *sport) { - unsigned long val, ctrl; - unsigned long ctrl_saved; + u32 val, ctrl, ctrl_saved;
ctrl = lpuart32_read(&sport->port, UARTCTRL); ctrl_saved = ctrl; @@ -1778,7 +1776,7 @@ static void lpuart_tx_dma_startup(struct lpuart_port *sport) static void lpuart_rx_dma_startup(struct lpuart_port *sport) { int ret; - unsigned char cr3; + u8 cr3;
if (uart_console(&sport->port)) goto err; @@ -1828,7 +1826,7 @@ static void lpuart_hw_setup(struct lpuart_port *sport) static int lpuart_startup(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); - unsigned char temp; + u8 temp;
/* determine FIFO size and enable FIFO mode */ temp = readb(sport->port.membase + UARTPFIFO); @@ -1848,7 +1846,7 @@ static int lpuart_startup(struct uart_port *port)
static void lpuart32_hw_disable(struct lpuart_port *sport) { - unsigned long temp; + u32 temp;
temp = lpuart32_read(&sport->port, UARTCTRL); temp &= ~(UARTCTRL_RIE | UARTCTRL_ILIE | UARTCTRL_RE | @@ -1858,7 +1856,7 @@ static void lpuart32_hw_disable(struct lpuart_port *sport)
static void lpuart32_configure(struct lpuart_port *sport) { - unsigned long temp; + u32 temp;
temp = lpuart32_read(&sport->port, UARTCTRL); if (!sport->lpuart_dma_rx_use) @@ -1888,7 +1886,7 @@ static void lpuart32_hw_setup(struct lpuart_port *sport) static int lpuart32_startup(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); - unsigned long temp; + u32 temp;
/* determine FIFO size */ temp = lpuart32_read(&sport->port, UARTFIFO); @@ -1942,7 +1940,7 @@ static void lpuart_dma_shutdown(struct lpuart_port *sport) static void lpuart_shutdown(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); - unsigned char temp; + u8 temp; unsigned long flags;
uart_port_lock_irqsave(port, &flags); @@ -1962,7 +1960,7 @@ static void lpuart32_shutdown(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); - unsigned long temp; + u32 temp; unsigned long flags;
uart_port_lock_irqsave(port, &flags); @@ -1993,7 +1991,7 @@ lpuart_set_termios(struct uart_port *port, struct ktermios *termios, { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); unsigned long flags; - unsigned char cr1, old_cr1, old_cr2, cr3, cr4, bdh, modem; + u8 cr1, old_cr1, old_cr2, cr3, cr4, bdh, modem; unsigned int baud; unsigned int old_csize = old ? old->c_cflag & CSIZE : CS8; unsigned int sbr, brfa; @@ -2231,7 +2229,7 @@ lpuart32_set_termios(struct uart_port *port, struct ktermios *termios, { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); unsigned long flags; - unsigned long ctrl, old_ctrl, bd, modem; + u32 ctrl, old_ctrl, bd, modem; unsigned int baud; unsigned int old_csize = old ? old->c_cflag & CSIZE : CS8;
@@ -2498,7 +2496,7 @@ static void lpuart_console_write(struct console *co, const char *s, unsigned int count) { struct lpuart_port *sport = lpuart_ports[co->index]; - unsigned char old_cr2, cr2; + u8 old_cr2, cr2; unsigned long flags; int locked = 1;
@@ -2528,7 +2526,7 @@ static void lpuart32_console_write(struct console *co, const char *s, unsigned int count) { struct lpuart_port *sport = lpuart_ports[co->index]; - unsigned long old_cr, cr; + u32 old_cr, cr; unsigned long flags; int locked = 1;
@@ -2562,7 +2560,7 @@ static void __init lpuart_console_get_options(struct lpuart_port *sport, int *baud, int *parity, int *bits) { - unsigned char cr, bdh, bdl, brfa; + u8 cr, bdh, bdl, brfa; unsigned int sbr, uartclk, baud_raw;
cr = readb(sport->port.membase + UARTCR2); @@ -2611,7 +2609,7 @@ static void __init lpuart32_console_get_options(struct lpuart_port *sport, int *baud, int *parity, int *bits) { - unsigned long cr, bd; + u32 cr, bd; unsigned int sbr, uartclk, baud_raw;
cr = lpuart32_read(&sport->port, UARTCTRL); @@ -2817,7 +2815,7 @@ static int lpuart_global_reset(struct lpuart_port *sport) { struct uart_port *port = &sport->port; void __iomem *global_addr; - unsigned long ctrl, bd; + u32 ctrl, bd; unsigned int val = 0; int ret;
@@ -3023,7 +3021,7 @@ static int lpuart_runtime_resume(struct device *dev)
static void serial_lpuart_enable_wakeup(struct lpuart_port *sport, bool on) { - unsigned int val, baud; + u32 val, baud;
if (lpuart_is_32(sport)) { val = lpuart32_read(&sport->port, UARTCTRL); @@ -3088,7 +3086,7 @@ static int lpuart_suspend_noirq(struct device *dev) static int lpuart_resume_noirq(struct device *dev) { struct lpuart_port *sport = dev_get_drvdata(dev); - unsigned int val; + u32 val;
pinctrl_pm_select_default_state(dev);
@@ -3108,7 +3106,8 @@ static int lpuart_resume_noirq(struct device *dev) static int lpuart_suspend(struct device *dev) { struct lpuart_port *sport = dev_get_drvdata(dev); - unsigned long temp, flags; + u32 temp; + unsigned long flags;
uart_suspend_port(&lpuart_reg, &sport->port);