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BT: porting cpy 2704

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PD#172583: bt power and uart rts

Change-Id: I392b3caf0771c9608d532694ecd16b52dccf05a3
Signed-off-by: Kuibao Zhang <kuibao.zhang@amlogic.com>
This commit is contained in:
Kuibao Zhang
2018-09-07 15:45:56 +08:00
committed by Jianxin Pan
parent 22084c568b
commit 655155d978
2 changed files with 9 additions and 4 deletions
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11
drivers/amlogic/uart/meson_uart.c
View File

@@ -162,7 +162,7 @@ __setup("printk_no_block", new_printk_enable);
module_param_named(new_printk, new_printk_enabled,
bool, S_IRUGO | S_IWUSR);
bool, 0644);
MODULE_PARM_DESC(new_printk, "printk use no block mode");
@@ -181,7 +181,7 @@ static ssize_t printk_mode_store(struct device_driver *drv, const char *buf,
return count;
}
static DRIVER_ATTR(printkmode, S_IRUGO | S_IWUSR, printk_mode_show,
static DRIVER_ATTR(printkmode, 0644, printk_mode_show,
printk_mode_store);
@@ -203,7 +203,7 @@ static ssize_t support_sysrq_store(struct device_driver *drv, const char *buf,
return count;
}
static DRIVER_ATTR(sysrqsupport, S_IRUGO | S_IWUSR, support_sysrq_show,
static DRIVER_ATTR(sysrqsupport, 0644, support_sysrq_show,
support_sysrq_store);
@@ -346,6 +346,7 @@ static void meson_uart_shutdown(struct uart_port *port)
val = readl(port->membase + AML_UART_CONTROL);
val &= ~(AML_UART_RX_EN | AML_UART_TX_EN);
val &= ~(AML_UART_RX_INT_EN | AML_UART_TX_INT_EN);
val |= UART_CTS_EN;
writel(val, port->membase + AML_UART_CONTROL);
spin_unlock_irqrestore(&port->lock, flags);
@@ -526,6 +527,7 @@ static int meson_uart_startup(struct uart_port *port)
writel(val, port->membase + AML_UART_CONTROL);
val |= (AML_UART_RX_INT_EN | AML_UART_TX_INT_EN);
val &= ~UART_CTS_EN;
writel(val, port->membase + AML_UART_CONTROL);
return ret;
@@ -708,6 +710,9 @@ static int meson_uart_request_port(struct uart_port *port)
val = (AML_UART_RECV_IRQ(1) | AML_UART_XMIT_IRQ(port->fifosize / 2));
writel(val, port->membase + AML_UART_MISC);
writel(readl(port->membase + AML_UART_CONTROL) | UART_CTS_EN,
port->membase + AML_UART_CONTROL);
ret = request_irq(port->irq, meson_uart_interrupt, 0,
meson_uart_type(port), port);
return 0;

2
drivers/amlogic/uart/meson_uart.h
View File

@@ -36,7 +36,7 @@
#define UART_RXRST (0x01<<23)
#define UART_RXINT_EN (0x01<<27)
#define UART_TXINT_EN (0x01<<28)
#define UART_CTS_EN (0x01<<31)
#define UART_WFIFO 0
#define UART_RFIFO 1
#define UART_CONTROL 2