summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/tty/goldfish.c18
-rw-r--r--drivers/tty/nozomi.c5
-rw-r--r--drivers/tty/serial/max310x.c57
-rw-r--r--include/linux/goldfish.h8
4 files changed, 38 insertions, 50 deletions
diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c
index c8c5cdfc5e19..cd23a4b05c8f 100644
--- a/drivers/tty/goldfish.c
+++ b/drivers/tty/goldfish.c
@@ -61,13 +61,13 @@ static void do_rw_io(struct goldfish_tty *qtty,
spin_lock_irqsave(&qtty->lock, irq_flags);
gf_write_ptr((void *)address, base + GOLDFISH_TTY_REG_DATA_PTR,
base + GOLDFISH_TTY_REG_DATA_PTR_HIGH);
- writel(count, base + GOLDFISH_TTY_REG_DATA_LEN);
+ __raw_writel(count, base + GOLDFISH_TTY_REG_DATA_LEN);
if (is_write)
- writel(GOLDFISH_TTY_CMD_WRITE_BUFFER,
+ __raw_writel(GOLDFISH_TTY_CMD_WRITE_BUFFER,
base + GOLDFISH_TTY_REG_CMD);
else
- writel(GOLDFISH_TTY_CMD_READ_BUFFER,
+ __raw_writel(GOLDFISH_TTY_CMD_READ_BUFFER,
base + GOLDFISH_TTY_REG_CMD);
spin_unlock_irqrestore(&qtty->lock, irq_flags);
@@ -142,7 +142,7 @@ static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id)
unsigned char *buf;
u32 count;
- count = readl(base + GOLDFISH_TTY_REG_BYTES_READY);
+ count = __raw_readl(base + GOLDFISH_TTY_REG_BYTES_READY);
if (count == 0)
return IRQ_NONE;
@@ -159,7 +159,7 @@ static int goldfish_tty_activate(struct tty_port *port, struct tty_struct *tty)
{
struct goldfish_tty *qtty = container_of(port, struct goldfish_tty,
port);
- writel(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
+ __raw_writel(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
return 0;
}
@@ -167,7 +167,7 @@ static void goldfish_tty_shutdown(struct tty_port *port)
{
struct goldfish_tty *qtty = container_of(port, struct goldfish_tty,
port);
- writel(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
+ __raw_writel(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
}
static int goldfish_tty_open(struct tty_struct *tty, struct file *filp)
@@ -202,7 +202,7 @@ static int goldfish_tty_chars_in_buffer(struct tty_struct *tty)
{
struct goldfish_tty *qtty = &goldfish_ttys[tty->index];
void __iomem *base = qtty->base;
- return readl(base + GOLDFISH_TTY_REG_BYTES_READY);
+ return __raw_readl(base + GOLDFISH_TTY_REG_BYTES_READY);
}
static void goldfish_tty_console_write(struct console *co, const char *b,
@@ -357,7 +357,7 @@ static int goldfish_tty_probe(struct platform_device *pdev)
* on Ranchu emulator (qemu2) returns 1 here and
* driver will use physical addresses.
*/
- qtty->version = readl(base + GOLDFISH_TTY_REG_VERSION);
+ qtty->version = __raw_readl(base + GOLDFISH_TTY_REG_VERSION);
/*
* Goldfish TTY device on Ranchu emulator (qemu2)
@@ -376,7 +376,7 @@ static int goldfish_tty_probe(struct platform_device *pdev)
}
}
- writel(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_REG_CMD);
+ __raw_writel(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_REG_CMD);
ret = request_irq(irq, goldfish_tty_interrupt, IRQF_SHARED,
"goldfish_tty", qtty);
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index d42b854cb7df..861e95043191 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c
@@ -414,11 +414,9 @@ static void read_mem32(u32 *buf, const void __iomem *mem_addr_start,
buf16 = (u16 *) buf;
*buf16 = __le16_to_cpu(readw(ptr));
goto out;
- break;
case 4: /* 4 bytes */
*(buf) = __le32_to_cpu(readl(ptr));
goto out;
- break;
}
while (i < size_bytes) {
@@ -460,15 +458,14 @@ static u32 write_mem32(void __iomem *mem_addr_start, const u32 *buf,
buf16 = (const u16 *)buf;
writew(__cpu_to_le16(*buf16), ptr);
return 2;
- break;
case 1: /*
* also needs to write 4 bytes in this case
* so falling through..
*/
+ fallthrough;
case 4: /* 4 bytes */
writel(__cpu_to_le32(*buf), ptr);
return 4;
- break;
}
while (i < size_bytes) {
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 21130af106bb..9795b2e8b0b2 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -15,8 +15,8 @@
#include <linux/device.h>
#include <linux/gpio/driver.h>
#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/serial_core.h>
#include <linux/serial.h>
@@ -267,7 +267,7 @@ struct max310x_one {
container_of(_port, struct max310x_one, port)
struct max310x_port {
- struct max310x_devtype *devtype;
+ const struct max310x_devtype *devtype;
struct regmap *regmap;
struct clk *clk;
#ifdef CONFIG_GPIOLIB
@@ -1269,11 +1269,10 @@ static int max310x_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
}
#endif
-static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,
+static int max310x_probe(struct device *dev, const struct max310x_devtype *devtype,
struct regmap *regmap, int irq)
{
int i, ret, fmin, fmax, freq, uartclk;
- struct clk *clk_osc, *clk_xtal;
struct max310x_port *s;
bool xtal = false;
@@ -1287,23 +1286,24 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,
return -ENOMEM;
}
- clk_osc = devm_clk_get(dev, "osc");
- clk_xtal = devm_clk_get(dev, "xtal");
- if (!IS_ERR(clk_osc)) {
- s->clk = clk_osc;
+ s->clk = devm_clk_get_optional(dev, "osc");
+ if (IS_ERR(s->clk))
+ return PTR_ERR(s->clk);
+ if (s->clk) {
fmin = 500000;
fmax = 35000000;
- } else if (!IS_ERR(clk_xtal)) {
- s->clk = clk_xtal;
- fmin = 1000000;
- fmax = 4000000;
- xtal = true;
- } else if (PTR_ERR(clk_osc) == -EPROBE_DEFER ||
- PTR_ERR(clk_xtal) == -EPROBE_DEFER) {
- return -EPROBE_DEFER;
} else {
- dev_err(dev, "Cannot get clock\n");
- return -EINVAL;
+ s->clk = devm_clk_get_optional(dev, "xtal");
+ if (IS_ERR(s->clk))
+ return PTR_ERR(s->clk);
+ if (s->clk) {
+ fmin = 1000000;
+ fmax = 4000000;
+ xtal = true;
+ } else {
+ dev_err(dev, "Cannot get clock\n");
+ return -EINVAL;
+ }
}
ret = clk_prepare_enable(s->clk);
@@ -1478,7 +1478,7 @@ static struct regmap_config regcfg = {
#ifdef CONFIG_SPI_MASTER
static int max310x_spi_probe(struct spi_device *spi)
{
- struct max310x_devtype *devtype;
+ const struct max310x_devtype *devtype;
struct regmap *regmap;
int ret;
@@ -1490,18 +1490,9 @@ static int max310x_spi_probe(struct spi_device *spi)
if (ret)
return ret;
- if (spi->dev.of_node) {
- const struct of_device_id *of_id =
- of_match_device(max310x_dt_ids, &spi->dev);
- if (!of_id)
- return -ENODEV;
-
- devtype = (struct max310x_devtype *)of_id->data;
- } else {
- const struct spi_device_id *id_entry = spi_get_device_id(spi);
-
- devtype = (struct max310x_devtype *)id_entry->driver_data;
- }
+ devtype = device_get_match_data(&spi->dev);
+ if (!devtype)
+ devtype = (struct max310x_devtype *)spi_get_device_id(spi)->driver_data;
regcfg.max_register = devtype->nr * 0x20 - 1;
regmap = devm_regmap_init_spi(spi, &regcfg);
@@ -1526,7 +1517,7 @@ MODULE_DEVICE_TABLE(spi, max310x_id_table);
static struct spi_driver max310x_spi_driver = {
.driver = {
.name = MAX310X_NAME,
- .of_match_table = of_match_ptr(max310x_dt_ids),
+ .of_match_table = max310x_dt_ids,
.pm = &max310x_pm_ops,
},
.probe = max310x_spi_probe,
diff --git a/include/linux/goldfish.h b/include/linux/goldfish.h
index 265a099cd3b8..12be1601fd84 100644
--- a/include/linux/goldfish.h
+++ b/include/linux/goldfish.h
@@ -13,9 +13,9 @@ static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
{
const unsigned long addr = (unsigned long)ptr;
- writel(lower_32_bits(addr), portl);
+ __raw_writel(lower_32_bits(addr), portl);
#ifdef CONFIG_64BIT
- writel(upper_32_bits(addr), porth);
+ __raw_writel(upper_32_bits(addr), porth);
#endif
}
@@ -23,9 +23,9 @@ static inline void gf_write_dma_addr(const dma_addr_t addr,
void __iomem *portl,
void __iomem *porth)
{
- writel(lower_32_bits(addr), portl);
+ __raw_writel(lower_32_bits(addr), portl);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
- writel(upper_32_bits(addr), porth);
+ __raw_writel(upper_32_bits(addr), porth);
#endif
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-21 13:32:47 +0300