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device: Const-ify all device driver instance pointers

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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
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24
drivers/watchdog/wdt_esp32.c
View file

@ -68,18 +68,18 @@ struct wdt_esp32_config {
* magic value of TIMG_WDT_WKEY_VALUE. The datasheet recommends unsealing,
* making modifications, and sealing for every watchdog modification.
*/
static inline void wdt_esp32_seal(struct device *dev)
static inline void wdt_esp32_seal(const struct device *dev)
{
DEV_BASE(dev)->wprotect = 0U;
}
static inline void wdt_esp32_unseal(struct device *dev)
static inline void wdt_esp32_unseal(const struct device *dev)
{
DEV_BASE(dev)->wprotect = TIMG_WDT_WKEY_VALUE;
}
static void wdt_esp32_enable(struct device *dev)
static void wdt_esp32_enable(const struct device *dev)
{
wdt_esp32_unseal(dev);
DEV_BASE(dev)->config0 |= BIT(TIMG_WDT_EN_S);
@ -87,7 +87,7 @@ static void wdt_esp32_enable(struct device *dev)
}
static int wdt_esp32_disable(struct device *dev)
static int wdt_esp32_disable(const struct device *dev)
{
wdt_esp32_unseal(dev);
DEV_BASE(dev)->config0 &= ~BIT(TIMG_WDT_EN_S);
@ -96,7 +96,7 @@ static int wdt_esp32_disable(struct device *dev)
return 0;
}
static void adjust_timeout(struct device *dev, uint32_t timeout)
static void adjust_timeout(const struct device *dev, uint32_t timeout)
{
/* MWDT ticks every 12.5ns. Set the prescaler to 40000, so the
* counter for each watchdog stage is decremented every 0.5ms.
@ -106,9 +106,9 @@ static void adjust_timeout(struct device *dev, uint32_t timeout)
DEV_BASE(dev)->config3 = timeout;
}
static void wdt_esp32_isr(struct device *dev);
static void wdt_esp32_isr(const struct device *dev);
static int wdt_esp32_feed(struct device *dev, int channel_id)
static int wdt_esp32_feed(const struct device *dev, int channel_id)
{
wdt_esp32_unseal(dev);
DEV_BASE(dev)->feed = 0xABAD1DEA; /* Writing any value to WDTFEED will reload it. */
@ -117,7 +117,7 @@ static int wdt_esp32_feed(struct device *dev, int channel_id)
return 0;
}
static void set_interrupt_enabled(struct device *dev, bool setting)
static void set_interrupt_enabled(const struct device *dev, bool setting)
{
*DEV_CFG(dev)->irq_regs.timer_int_clr |= TIMG_WDT_INT_CLR;
@ -130,7 +130,7 @@ static void set_interrupt_enabled(struct device *dev, bool setting)
}
}
static int wdt_esp32_set_config(struct device *dev, uint8_t options)
static int wdt_esp32_set_config(const struct device *dev, uint8_t options)
{
struct wdt_esp32_data *data = DEV_DATA(dev);
uint32_t v = DEV_BASE(dev)->config0;
@ -177,7 +177,7 @@ static int wdt_esp32_set_config(struct device *dev, uint8_t options)
return 0;
}
static int wdt_esp32_install_timeout(struct device *dev,
static int wdt_esp32_install_timeout(const struct device *dev,
const struct wdt_timeout_cfg *cfg)
{
struct wdt_esp32_data *data = DEV_DATA(dev);
@ -200,7 +200,7 @@ static int wdt_esp32_install_timeout(struct device *dev,
return 0;
}
static int wdt_esp32_init(struct device *dev)
static int wdt_esp32_init(const struct device *dev)
{
#ifdef CONFIG_WDT_DISABLE_AT_BOOT
wdt_esp32_disable(dev);
@ -258,7 +258,7 @@ static const struct wdt_driver_api wdt_api = {
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE, \
&wdt_api)
static void wdt_esp32_isr(struct device *dev)
static void wdt_esp32_isr(const struct device *dev)
{
struct wdt_esp32_data *data = DEV_DATA(dev);