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drivers: video: isx012: Fix system clock to HV mode

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ISX012 doesn't work if CONFIG_CPUFREQ_RELEASE_LOCK is enabled
without this changes.
This commit is contained in:
SPRESENSE 2023-06-27 18:46:04 +09:00 committed by Petro Karashchenko
parent d0d787c1b0
commit 6611bf99c4
1 changed files with 17 additions and 0 deletions
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17
boards/arm/cxd56xx/common/src/cxd56_isx012.c
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@ -37,6 +37,7 @@
#include "cxd56_i2c.h"
#include <arch/board/board.h>
#include <arch/chip/pm.h>
/****************************************************************************
* Pre-processor Definitions
@ -59,6 +60,14 @@
#define POWER_CHECK_RETRY (10)
/****************************************************************************
* Private Data
****************************************************************************/
static struct pm_cpu_freqlock_s g_hv_lock =
PM_CPUFREQLOCK_INIT(PM_CPUFREQLOCK_TAG('I', 'S', 0),
PM_CPUFREQLOCK_FLAG_HV);
/****************************************************************************
* Public Functions
****************************************************************************/
@ -163,6 +172,10 @@ struct i2c_master_s *board_isx012_initialize(void)
{
_info("Initializing ISX012...\n");
/* Fix system clock to HV mode */
up_pm_acquire_freqlock(&g_hv_lock);
#ifdef IMAGER_ALERT
cxd56_gpio_config(IMAGER_ALERT, true);
#endif
@ -184,6 +197,10 @@ int board_isx012_uninitialize(struct i2c_master_s *i2c)
_info("Uninitializing ISX012...\n");
/* Release system clock */
up_pm_release_freqlock(&g_hv_lock);
/* Initialize i2c device */
ret = isx012_uninitialize();