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Second set of Counter updates for 6.16

Browse Source 
Adds compatible for STM32MP25 SoC and enables respective encoder
 capability for stm32-timer-cnt. Implements watch_validate callback for
 microchip-tcb-capture.
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Merge tag 'counter-updates-for-6.16b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wbg/counter into char-misc-next

William writes:

Second set of Counter updates for 6.16

Adds compatible for STM32MP25 SoC and enables respective encoder
capability for stm32-timer-cnt. Implements watch_validate callback for
microchip-tcb-capture.

* tag 'counter-updates-for-6.16b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wbg/counter:
  counter: microchip-tcb-capture: Add watch validation support
  counter: stm32-timer-cnt: add support for stm32mp25
This commit is contained in:
Greg Kroah-Hartman 2025-05-24 08:29:32 +02:00
commit 1b56e7d465
2 changed files with 29 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/counter/microchip-tcb-capture.c
View File

@ -337,6 +337,28 @@ static struct counter_comp mchp_tc_count_ext[] = {
COUNTER_COMP_COMPARE(mchp_tc_count_compare_read, mchp_tc_count_compare_write),
};
static int mchp_tc_watch_validate(struct counter_device *counter,
const struct counter_watch *watch)
{
if (watch->channel == COUNTER_MCHP_EVCHN_CV || watch->channel == COUNTER_MCHP_EVCHN_RA)
switch (watch->event) {
case COUNTER_EVENT_CHANGE_OF_STATE:
case COUNTER_EVENT_OVERFLOW:
case COUNTER_EVENT_CAPTURE:
return 0;
default:
return -EINVAL;
}
if (watch->channel == COUNTER_MCHP_EVCHN_RB && watch->event == COUNTER_EVENT_CAPTURE)
return 0;
if (watch->channel == COUNTER_MCHP_EVCHN_RC && watch->event == COUNTER_EVENT_THRESHOLD)
return 0;
return -EINVAL;
}
static struct counter_count mchp_tc_counts[] = {
{
.id = 0,
@ -356,7 +378,8 @@ static const struct counter_ops mchp_tc_ops = {
.function_read = mchp_tc_count_function_read,
.function_write = mchp_tc_count_function_write,
.action_read = mchp_tc_count_action_read,
.action_write = mchp_tc_count_action_write
.action_write = mchp_tc_count_action_write,
.watch_validate = mchp_tc_watch_validate,
};
static const struct atmel_tcb_config tcb_rm9200_config = {

7
drivers/counter/stm32-timer-cnt.c
View File

@ -669,12 +669,14 @@ static void stm32_timer_cnt_detect_channels(struct device *dev,
dev_dbg(dev, "has %d cc channels\n", priv->nchannels);
}
/* encoder supported on TIM1 TIM2 TIM3 TIM4 TIM5 TIM8 */
#define STM32_TIM_ENCODER_SUPPORTED (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(7))
/* encoder supported on TIM1 TIM2 TIM3 TIM4 TIM5 TIM8 TIM20 */
#define STM32_TIM_ENCODER_SUPPORTED (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(7) | \
BIT(19))
static const char * const stm32_timer_trigger_compat[] = {
"st,stm32-timer-trigger",
"st,stm32h7-timer-trigger",
"st,stm32mp25-timer-trigger",
};
static int stm32_timer_cnt_probe_encoder(struct device *dev,
@ -846,6 +848,7 @@ static SIMPLE_DEV_PM_OPS(stm32_timer_cnt_pm_ops, stm32_timer_cnt_suspend,
static const struct of_device_id stm32_timer_cnt_of_match[] = {
{ .compatible = "st,stm32-timer-counter", },
{ .compatible = "st,stm32mp25-timer-counter", },
{},
};
MODULE_DEVICE_TABLE(of, stm32_timer_cnt_of_match);