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device: Const-ify all device driver instance pointers

Browse source 
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.

A coccinelle rule is used for this:

@r_const_dev_1
  disable optional_qualifier
@
@@
-struct device *
+const struct device *

@r_const_dev_2
 disable optional_qualifier
@
@@
-struct device * const
+const struct device *

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This commit is contained in:
Tomasz Bursztyka 2020-04-30 20:33:38 +02:00 • committed by Carles Cufí
commit e18fcbba5a
1426 changed files with 9356 additions and 8368 deletions
Download patch file Download diff file Expand all files Collapse all files

42
drivers/serial/uart_liteuart.c
View file

@ -53,7 +53,7 @@ struct uart_liteuart_data {
* @param dev UART device struct
* @param c Character to send
*/
static void uart_liteuart_poll_out(struct device *dev, unsigned char c)
static void uart_liteuart_poll_out(const struct device *dev, unsigned char c)
{
/* wait for space */
while (sys_read8(UART_TXFULL)) {
@ -70,7 +70,7 @@ static void uart_liteuart_poll_out(struct device *dev, unsigned char c)
*
* @return 0 if a character arrived, -1 if the input buffer if empty.
*/
static int uart_liteuart_poll_in(struct device *dev, unsigned char *c)
static int uart_liteuart_poll_in(const struct device *dev, unsigned char *c)
{
if (!sys_read8(UART_RXEMPTY)) {
*c = sys_read8(UART_RXTX);
@ -93,7 +93,7 @@ static int uart_liteuart_poll_in(struct device *dev, unsigned char *c)
*
* @return N/A
*/
static void uart_liteuart_irq_tx_enable(struct device *dev)
static void uart_liteuart_irq_tx_enable(const struct device *dev)
{
uint8_t enable = sys_read8(UART_EV_ENABLE);
@ -107,7 +107,7 @@ static void uart_liteuart_irq_tx_enable(struct device *dev)
*
* @return N/A
*/
static void uart_liteuart_irq_tx_disable(struct device *dev)
static void uart_liteuart_irq_tx_disable(const struct device *dev)
{
uint8_t enable = sys_read8(UART_EV_ENABLE);
@ -121,7 +121,7 @@ static void uart_liteuart_irq_tx_disable(struct device *dev)
*
* @return N/A
*/
static void uart_liteuart_irq_rx_enable(struct device *dev)
static void uart_liteuart_irq_rx_enable(const struct device *dev)
{
uint8_t enable = sys_read8(UART_EV_ENABLE);
@ -135,7 +135,7 @@ static void uart_liteuart_irq_rx_enable(struct device *dev)
*
* @return N/A
*/
static void uart_liteuart_irq_rx_disable(struct device *dev)
static void uart_liteuart_irq_rx_disable(const struct device *dev)
{
uint8_t enable = sys_read8(UART_EV_ENABLE);
@ -149,7 +149,7 @@ static void uart_liteuart_irq_rx_disable(struct device *dev)
*
* @return 1 if an IRQ has been raised, 0 otherwise
*/
static int uart_liteuart_irq_tx_ready(struct device *dev)
static int uart_liteuart_irq_tx_ready(const struct device *dev)
{
uint8_t val = sys_read8(UART_TXFULL);
@ -163,7 +163,7 @@ static int uart_liteuart_irq_tx_ready(struct device *dev)
*
* @return 1 if an IRQ has been raised, 0 otherwise
*/
static int uart_liteuart_irq_rx_ready(struct device *dev)
static int uart_liteuart_irq_rx_ready(const struct device *dev)
{
uint8_t pending;
@ -185,8 +185,8 @@ static int uart_liteuart_irq_rx_ready(struct device *dev)
*
* @return Number of bytes sent
*/
static int uart_liteuart_fifo_fill(struct device *dev,
const uint8_t *tx_data, int size)
static int uart_liteuart_fifo_fill(const struct device *dev,
const uint8_t *tx_data, int size)
{
int i;
@ -206,8 +206,8 @@ static int uart_liteuart_fifo_fill(struct device *dev,
*
* @return Number of bytes read
*/
static int uart_liteuart_fifo_read(struct device *dev,
uint8_t *rx_data, const int size)
static int uart_liteuart_fifo_read(const struct device *dev,
uint8_t *rx_data, const int size)
{
int i;
@ -223,7 +223,7 @@ static int uart_liteuart_fifo_read(struct device *dev,
return i;
}
static void uart_liteuart_irq_err(struct device *dev)
static void uart_liteuart_irq_err(const struct device *dev)
{
ARG_UNUSED(dev);
}
@ -235,7 +235,7 @@ static void uart_liteuart_irq_err(struct device *dev)
*
* @return 1 if an IRQ is pending, 0 otherwise
*/
static int uart_liteuart_irq_is_pending(struct device *dev)
static int uart_liteuart_irq_is_pending(const struct device *dev)
{
uint8_t pending;
@ -248,7 +248,7 @@ static int uart_liteuart_irq_is_pending(struct device *dev)
}
}
static int uart_liteuart_irq_update(struct device *dev)
static int uart_liteuart_irq_update(const struct device *dev)
{
return 1;
}
@ -261,9 +261,9 @@ static int uart_liteuart_irq_update(struct device *dev)
*
* @return N/A
*/
static void uart_liteuart_irq_callback_set(struct device *dev,
uart_irq_callback_user_data_t cb,
void *cb_data)
static void uart_liteuart_irq_callback_set(const struct device *dev,
uart_irq_callback_user_data_t cb,
void *cb_data)
{
struct uart_liteuart_data *data;
@ -274,7 +274,7 @@ static void uart_liteuart_irq_callback_set(struct device *dev,
static void liteuart_uart_irq_handler(void *arg)
{
struct device *dev = (struct device *)arg;
const struct device *dev = (const struct device *)arg;
struct uart_liteuart_data *data = DEV_DATA(dev);
int key = irq_lock();
@ -311,7 +311,7 @@ static const struct uart_driver_api uart_liteuart_driver_api = {
};
static struct uart_liteuart_data uart_liteuart_data_0;
static int uart_liteuart_init(struct device *dev);
static int uart_liteuart_init(const struct device *dev);
static const struct uart_liteuart_device_config uart_liteuart_dev_cfg_0 = {
.port = UART_BASE_ADDR,
@ -324,7 +324,7 @@ DEVICE_AND_API_INIT(uart_liteuart_0, DT_INST_LABEL(0),
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
(void *)&uart_liteuart_driver_api);
static int uart_liteuart_init(struct device *dev)
static int uart_liteuart_init(const struct device *dev)
{
sys_write8(UART_EV_TX | UART_EV_RX, UART_EV_PENDING);