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drivers: uart: cc13xx_cc26xx: set power config based on UART base addr

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The power configuration is dependent on which UART is physically used.
In order to allow DT_INST_FOREACH_STATUS_OKAY() to iterate through
instances without the assumption that index 0 corresponds to UART0
(which would be incorrect in the case when only UART1 is enabled),
we need to check the base address to identify which UART is being dealt
with.

Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
This commit is contained in:
Vincent Wan 2020-05-26 20:28:48 -07:00 committed by Carles Cufí
parent 8f4df1784a
commit bacf412c7b
1 changed files with 18 additions and 9 deletions
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27
drivers/serial/uart_cc13xx_cc26xx.c
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@ -490,9 +490,6 @@ static const struct uart_driver_api uart_cc13xx_cc26xx_driver_api = {
#endif /* CONFIG_UART_INTERRUPT_DRIVEN */
};
#define UART_CC13XX_CC26XX_DOMAIN_0 PRCM_DOMAIN_SERIAL
#define UART_CC13XX_CC26XX_DOMAIN_1 PRCM_DOMAIN_PERIPH
#ifdef CONFIG_SYS_POWER_MANAGEMENT
#define UART_CC13XX_CC26XX_POWER_UART(n) \
do { \
@ -500,7 +497,11 @@ static const struct uart_driver_api uart_cc13xx_cc26xx_driver_api = {
get_dev_data(dev)->tx_constrained = false; \
\
/* Set Power dependencies */ \
Power_setDependency(PowerCC26XX_PERIPH_UART##n); \
if (DT_INST_REG_ADDR(n) == 0x40001000) { \
Power_setDependency(PowerCC26XX_PERIPH_UART0); \
} else { \
Power_setDependency(PowerCC26X2_PERIPH_UART1); \
} \
\
/* Register notification function */ \
Power_registerNotify(&get_dev_data(dev)->postNotify, \
@ -510,12 +511,21 @@ static const struct uart_driver_api uart_cc13xx_cc26xx_driver_api = {
#else
#define UART_CC13XX_CC26XX_POWER_UART(n) \
do { \
u32_t domain, periph; \
\
/* Enable UART power domain */ \
PRCMPowerDomainOn(UART_CC13XX_CC26XX_DOMAIN_##n); \
if (DT_INST_REG_ADDR(n) == 0x40001000) { \
domain = PRCM_DOMAIN_SERIAL; \
periph = PRCM_PERIPH_UART0; \
} else { \
domain = PRCM_DOMAIN_PERIPH; \
periph = PRCM_PERIPH_UART1; \
} \
PRCMPowerDomainOn(domain); \
\
/* Enable UART peripherals */ \
PRCMPeripheralRunEnable(PRCM_PERIPH_UART##n); \
PRCMPeripheralSleepEnable(PRCM_PERIPH_UART##n); \
PRCMPeripheralRunEnable(periph); \
PRCMPeripheralSleepEnable(periph); \
\
/* Load PRCM settings */ \
PRCMLoadSet(); \
@ -524,8 +534,7 @@ static const struct uart_driver_api uart_cc13xx_cc26xx_driver_api = {
} \
\
/* UART should not be accessed until power domain is on. */ \
while (PRCMPowerDomainStatus( \
UART_CC13XX_CC26XX_DOMAIN_##n) != \
while (PRCMPowerDomainStatus(domain) != \
PRCM_DOMAIN_POWER_ON) { \
continue; \
} \