diff options
author | Tommaso Merciai <tommaso.merciai@amarulasolutions.com> | 2022-03-26 12:19:05 +0100 |
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committer | Stefano Babic <sbabic@denx.de> | 2022-04-12 19:10:44 +0200 |
commit | 2c432563dfd0f9976eb9d962bff726ae7b497ae7 (patch) | |
tree | 3b85fcc239816a5c388b354114d472e58936a645 /drivers/pwm/pwm-imx-util.c | |
parent | ec191a81766575b955cd099e24db666781da42a9 (diff) |
drivers: pwm: pwm-imx: move pwm-imx-util into pwm-imx
Move pwm_imx_get_parms, pwm_id_to_reg functions into pwm-imx.c
and drop off pwm-imx-util.c
Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Diffstat (limited to 'drivers/pwm/pwm-imx-util.c')
-rw-r--r-- | drivers/pwm/pwm-imx-util.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/drivers/pwm/pwm-imx-util.c b/drivers/pwm/pwm-imx-util.c deleted file mode 100644 index 823a9d2d6b..0000000000 --- a/drivers/pwm/pwm-imx-util.c +++ /dev/null @@ -1,80 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * (C) Copyright 2014 - * Heiko Schocher, DENX Software Engineering, hs@denx.de. - * - * Basic support for the pwm module on imx6. - * - * Based on linux:drivers/pwm/pwm-imx.c - * from - * Sascha Hauer <s.hauer@pengutronix.de> - */ - -#include <common.h> -#include <div64.h> -#include <asm/arch/imx-regs.h> - -/* pwm_id from 0..7 */ -struct pwm_regs *pwm_id_to_reg(int pwm_id) -{ - switch (pwm_id) { - case 0: - return (struct pwm_regs *)PWM1_BASE_ADDR; - case 1: - return (struct pwm_regs *)PWM2_BASE_ADDR; -#ifdef CONFIG_MX6 - case 2: - return (struct pwm_regs *)PWM3_BASE_ADDR; - case 3: - return (struct pwm_regs *)PWM4_BASE_ADDR; -#endif -#ifdef CONFIG_MX6SX - case 4: - return (struct pwm_regs *)PWM5_BASE_ADDR; - case 5: - return (struct pwm_regs *)PWM6_BASE_ADDR; - case 6: - return (struct pwm_regs *)PWM7_BASE_ADDR; - case 7: - return (struct pwm_regs *)PWM8_BASE_ADDR; -#endif - default: - printf("unknown pwm_id: %d\n", pwm_id); - break; - } - return NULL; -} - -int pwm_imx_get_parms(int period_ns, int duty_ns, unsigned long *period_c, - unsigned long *duty_c, unsigned long *prescale) -{ - unsigned long long c; - - /* - * we have not yet a clock framework for imx6, so add the clock - * value here as a define. Replace it when we have the clock - * framework. - */ - c = CONFIG_IMX6_PWM_PER_CLK; - c = c * period_ns; - do_div(c, 1000000000); - *period_c = c; - - *prescale = *period_c / 0x10000 + 1; - - *period_c /= *prescale; - c = *period_c * (unsigned long long)duty_ns; - do_div(c, period_ns); - *duty_c = c; - - /* - * according to imx pwm RM, the real period value should be - * PERIOD value in PWMPR plus 2. - */ - if (*period_c > 2) - *period_c -= 2; - else - *period_c = 0; - - return 0; -} |