luchianmihai/walnux
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

arch/risc-v/espressif/ledc: Update common source code functions

Browse source 
Updates the common source code for the LEDC peripheral used by
Espressif's RISC-Vs SoCs. This enables newer SoCs to be supported
in the future while maintaining backwards compatibility.

Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.com>
This commit is contained in:
Tiago Medicci Serrano 2025-09-30 14:25:57 -03:00 • committed by Xiang Xiao
parent 251b19272f
commit ae5a6005dc
1 changed files with 26 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
arch/risc-v/src/common/espressif/esp_ledc.c
View file

@ -44,8 +44,10 @@
#include "hal/ledc_hal.h"
#include "hal/ledc_types.h"
#include "soc/soc_caps.h"
#include "soc/ledc_periph.h"
#include "clk_ctrl_os.h"
#include "esp_clk_tree.h"
#include "esp_private/esp_clk_tree_common.h"
#include "esp_attr.h"
/****************************************************************************
@ -462,7 +464,6 @@ static bool ledc_ctx_create(void)
ledc_hal_init(&(ledc_new_mode_obj->ledc_hal), LEDC_LOW_SPEED_MODE);
ledc_new_mode_obj->glb_clk = LEDC_SLOW_CLK_UNINIT;
p_ledc_obj = ledc_new_mode_obj;
periph_module_enable(PERIPH_LEDC_MODULE);
}
}
@ -861,8 +862,12 @@ static int ledc_set_timer_div(ledc_timer_t timer_num,
if (p_ledc_obj->glb_clk != glb_clk)
{
p_ledc_obj->glb_clk = glb_clk;
esp_clk_tree_enable_src((soc_module_clk_t)p_ledc_obj->glb_clk, true);
LEDC_FUNC_CLOCK_ATOMIC()
{
ledc_hal_set_slow_clk_sel(&(p_ledc_obj->ledc_hal), glb_clk);
}
}
leave_critical_section(flags);
@ -1324,8 +1329,7 @@ static void setup_channel(struct esp_ledc_s *priv, int cn)
pwmerr("ERROR: No memory for LEDC context\n");
PANIC();
}
#ifndef CONFIG_ARCH_CHIP_ESP32H2
#if !(defined(CONFIG_ARCH_CHIP_ESP32H2) || defined(CONFIG_ARCH_CHIP_ESP32P4))
/* On such targets, the default ledc core(global) clock does not connect to
* any clock source. Setting channel configurations and updating bits
* before core clock is enabled could lead to an error.
@ -1341,10 +1345,13 @@ static void setup_channel(struct esp_ledc_s *priv, int cn)
flags = enter_critical_section();
if (p_ledc_obj->glb_clk == LEDC_SLOW_CLK_UNINIT)
{
LEDC_FUNC_CLOCK_ATOMIC()
{
ledc_hal_set_slow_clk_sel(&(p_ledc_obj->ledc_hal),
LEDC_LL_GLOBAL_CLK_DEFAULT);
}
}
leave_critical_section(flags);
}
@ -1405,8 +1412,8 @@ static int pwm_setup(struct pwm_lowerhalf_s *dev)
esp_configgpio(priv->chans[i].pin, OUTPUT | PULLUP);
esp_gpio_matrix_out(priv->chans[i].pin,
LEDC_LS_SIG_OUT0_IDX + priv->chans[i].num,
0, 0);
ledc_periph_signal[0].sig_out0_idx +
priv->chans[i].num, 0, 0);
}
return OK;
@ -1454,10 +1461,20 @@ static int pwm_shutdown(struct pwm_lowerhalf_s *dev)
if (p_ledc_obj != NULL)
{
periph_module_disable(PERIPH_LEDC_MODULE);
kmm_free(p_ledc_obj);
p_ledc_obj = NULL;
s_ledc_slow_clk_rc_fast_freq = 0;
LEDC_BUS_CLOCK_ATOMIC()
{
ledc_ll_enable_bus_clock(false);
ledc_ll_enable_reset_reg(true);
}
LEDC_FUNC_CLOCK_ATOMIC()
{
ledc_ll_enable_clock(LEDC_LL_GET_HW(), false);
}
}
else
{