linux-kernel - [PATCH v4 04/11] counter: stm32-timer-cnt: adopt signal definitions

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Message-ID: <20240227173803.53906-5-fabrice.gasnier@foss.st.com>
Date: Tue, 27 Feb 2024 18:37:56 +0100
From: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To: <william.gray@...aro.org>
CC: <lee@...nel.org>, <alexandre.torgue@...s.st.com>,
        <fabrice.gasnier@...s.st.com>, <linux-iio@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v4 04/11] counter: stm32-timer-cnt: adopt signal definitions

Adopt signals definitions to ease later signals additions.
There are no intended functional changes here.

Reviewed-by: William Breathitt Gray <william.gray@...aro.org>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
---
Changes in v4:
- Add William's Reviewed-by tag
Changes in v3:
 New patch split from "counter: stm32-timer-cnt: introduce clock signal"
---
 drivers/counter/stm32-timer-cnt.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/counter/stm32-timer-cnt.c b/drivers/counter/stm32-timer-cnt.c
index 668e9d1061d3..c34747d7857e 100644
--- a/drivers/counter/stm32-timer-cnt.c
+++ b/drivers/counter/stm32-timer-cnt.c
@@ -21,6 +21,9 @@
 #define TIM_CCER_MASK	(TIM_CCER_CC1P | TIM_CCER_CC1NP | \
 			 TIM_CCER_CC2P | TIM_CCER_CC2NP)
 
+#define STM32_CH1_SIG		0
+#define STM32_CH2_SIG		1
+
 struct stm32_timer_regs {
 	u32 cr1;
 	u32 cnt;
@@ -247,14 +250,14 @@ static int stm32_action_read(struct counter_device *counter,
 		return 0;
 	case COUNTER_FUNCTION_QUADRATURE_X2_A:
 		/* counts up/down on TI1FP1 edge depending on TI2FP2 level */
-		if (synapse->signal->id == count->synapses[0].signal->id)
+		if (synapse->signal->id == STM32_CH1_SIG)
 			*action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
 		else
 			*action = COUNTER_SYNAPSE_ACTION_NONE;
 		return 0;
 	case COUNTER_FUNCTION_QUADRATURE_X2_B:
 		/* counts up/down on TI2FP2 edge depending on TI1FP1 level */
-		if (synapse->signal->id == count->synapses[1].signal->id)
+		if (synapse->signal->id == STM32_CH2_SIG)
 			*action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
 		else
 			*action = COUNTER_SYNAPSE_ACTION_NONE;
@@ -278,11 +281,11 @@ static const struct counter_ops stm32_timer_cnt_ops = {
 
 static struct counter_signal stm32_signals[] = {
 	{
-		.id = 0,
+		.id = STM32_CH1_SIG,
 		.name = "Channel 1"
 	},
 	{
-		.id = 1,
+		.id = STM32_CH2_SIG,
 		.name = "Channel 2"
 	}
 };
@@ -291,12 +294,12 @@ static struct counter_synapse stm32_count_synapses[] = {
 	{
 		.actions_list = stm32_synapse_actions,
 		.num_actions = ARRAY_SIZE(stm32_synapse_actions),
-		.signal = &stm32_signals[0]
+		.signal = &stm32_signals[STM32_CH1_SIG]
 	},
 	{
 		.actions_list = stm32_synapse_actions,
 		.num_actions = ARRAY_SIZE(stm32_synapse_actions),
-		.signal = &stm32_signals[1]
+		.signal = &stm32_signals[STM32_CH2_SIG]
 	}
 };
 
-- 
2.25.1