zephyr/drivers/clock_control/clock_control_mcux_ccm.c
Andrzej Głąbek 20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig
These changes were obtained by running a script  created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:

1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
   #define X Y)
3. Check if that name is also the name of a Kconfig option
   3.a If it is, then do nothing
   3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
       has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
   (.c, .h, .ld)

Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.

Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00

83 lines
1.7 KiB
C

/*
* Copyright (c) 2017, NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include <soc.h>
#include <clock_control.h>
#include <dt-bindings/clock/imx_ccm.h>
#include <fsl_clock.h>
#define LOG_LEVEL CONFIG_CLOCK_CONTROL_LOG_LEVEL
#include <logging/log.h>
LOG_MODULE_REGISTER(clock_control);
static const clock_name_t lpspi_clocks[] = {
kCLOCK_Usb1PllPfd1Clk,
kCLOCK_Usb1PllPfd0Clk,
kCLOCK_SysPllClk,
kCLOCK_SysPllPfd2Clk,
};
static int mcux_ccm_on(struct device *dev,
clock_control_subsys_t sub_system)
{
return 0;
}
static int mcux_ccm_off(struct device *dev,
clock_control_subsys_t sub_system)
{
return 0;
}
static int mcux_ccm_get_subsys_rate(struct device *dev,
clock_control_subsys_t sub_system,
u32_t *rate)
{
u32_t clock_name = (u32_t) sub_system;
switch (clock_name) {
case IMX_CCM_LPSPI_CLK:
{
u32_t lpspi_mux = CLOCK_GetMux(kCLOCK_LpspiMux);
clock_name_t lpspi_clock = lpspi_clocks[lpspi_mux];
*rate = CLOCK_GetFreq(lpspi_clock)
/ (CLOCK_GetDiv(kCLOCK_LpspiDiv) + 1);
break;
}
case IMX_CCM_LPUART_CLK:
if (CLOCK_GetMux(kCLOCK_UartMux) == 0) {
*rate = CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6
/ (CLOCK_GetDiv(kCLOCK_UartDiv) + 1);
} else {
*rate = CLOCK_GetOscFreq()
/ (CLOCK_GetDiv(kCLOCK_UartDiv) + 1);
}
break;
}
return 0;
}
static int mcux_ccm_init(struct device *dev)
{
return 0;
}
static const struct clock_control_driver_api mcux_ccm_driver_api = {
.on = mcux_ccm_on,
.off = mcux_ccm_off,
.get_rate = mcux_ccm_get_subsys_rate,
};
DEVICE_AND_API_INIT(mcux_ccm, DT_MCUX_CCM_NAME,
&mcux_ccm_init,
NULL, NULL,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
&mcux_ccm_driver_api);