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35 lines
1.4 KiB
Diff
35 lines
1.4 KiB
Diff
From cd8688a55e62094cb6605ee8594985f862d57a95 Mon Sep 17 00:00:00 2001
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From: Gunar Schorcht <gunar@schorcht.net>
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Date: Tue, 8 Mar 2022 11:35:11 +0100
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Subject: [PATCH 16/17] driver/i2c.h: expose i2c_hw_fsm_reset to RIOT code
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---
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components/driver/i2c.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/components/driver/i2c.c b/components/driver/i2c.c
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index be26fdeffc3..cff410b9d1b 100644
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--- a/components/driver/i2c.c
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+++ b/components/driver/i2c.c
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@@ -209,7 +209,7 @@ static i2c_clk_alloc_t i2c_clk_alloc[I2C_SCLK_MAX] = {
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static i2c_obj_t *p_i2c_obj[I2C_NUM_MAX] = {0};
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static void i2c_isr_handler_default(void *arg);
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static void IRAM_ATTR i2c_master_cmd_begin_static(i2c_port_t i2c_num);
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-static esp_err_t IRAM_ATTR i2c_hw_fsm_reset(i2c_port_t i2c_num);
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+esp_err_t IRAM_ATTR i2c_hw_fsm_reset(i2c_port_t i2c_num);
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static void i2c_hw_disable(i2c_port_t i2c_num)
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{
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@@ -595,7 +595,7 @@ static esp_err_t i2c_master_clear_bus(i2c_port_t i2c_num)
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* If we remove the power supply for the slave during I2C is reading, or directly connect SDA or SCL to ground,
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* this would cause the I2C FSM get stuck in wrong state, all we can do is to reset the I2C hardware in this case.
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**/
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-static esp_err_t i2c_hw_fsm_reset(i2c_port_t i2c_num)
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+esp_err_t i2c_hw_fsm_reset(i2c_port_t i2c_num)
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{
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#if !SOC_I2C_SUPPORT_HW_FSM_RST
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int scl_low_period, scl_high_period;
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--
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2.17.1
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