[src/trunk]: src/sys/arch/arm/samsung Remove some duplicate code

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a78394281c88
branches:  trunk
changeset: 320408:a78394281c88
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Wed Jul 04 22:16:42 2018 +0000

description:
Remove some duplicate code

diffstat:

 sys/arch/arm/samsung/exynos_gpio.c |  61 +++++++++----------------------------
 1 files changed, 16 insertions(+), 45 deletions(-)

diffs (98 lines):

diff -r 2541cce438cb -r a78394281c88 sys/arch/arm/samsung/exynos_gpio.c
--- a/sys/arch/arm/samsung/exynos_gpio.c        Wed Jul 04 19:37:10 2018 +0000
+++ b/sys/arch/arm/samsung/exynos_gpio.c        Wed Jul 04 22:16:42 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: exynos_gpio.c,v 1.24 2018/07/02 23:54:52 jmcneill Exp $ */
+/*     $NetBSD: exynos_gpio.c,v 1.25 2018/07/04 22:16:42 jmcneill Exp $ */
 
 /*-
 * Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
 #include "gpio.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: exynos_gpio.c,v 1.24 2018/07/02 23:54:52 jmcneill Exp $");
+__KERNEL_RCSID(1, "$NetBSD: exynos_gpio.c,v 1.25 2018/07/04 22:16:42 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -175,33 +175,6 @@
        return UNCONF;
 }
 
-static void
-exynos_gpio_update_cfg_regs(struct exynos_gpio_bank *bank,
-       const struct exynos_gpio_pin_cfg *ncfg)
-{
-       if (bank->bank_cfg.cfg != ncfg->cfg) {
-               GPIO_WRITE(bank, EXYNOS_GPIO_CON, ncfg->cfg);
-               bank->bank_cfg.cfg = ncfg->cfg;
-       }
-       if (bank->bank_cfg.pud != ncfg->pud) {
-               GPIO_WRITE(bank, EXYNOS_GPIO_PUD, ncfg->pud);
-               bank->bank_cfg.pud = ncfg->pud;
-       }
-
-       if (bank->bank_cfg.drv != ncfg->drv) {
-               GPIO_WRITE(bank, EXYNOS_GPIO_DRV, ncfg->drv);
-               bank->bank_cfg.drv = ncfg->drv;
-       }
-       if (bank->bank_cfg.conpwd != ncfg->conpwd) {
-               GPIO_WRITE(bank, EXYNOS_GPIO_CONPWD, ncfg->conpwd);
-               bank->bank_cfg.conpwd = ncfg->conpwd;
-       }
-       if (bank->bank_cfg.pudpwd != ncfg->pudpwd) {
-               GPIO_WRITE(bank, EXYNOS_GPIO_PUDPWD, ncfg->pudpwd);
-               bank->bank_cfg.pudpwd = ncfg->pudpwd;
-       }
-}
-
 static int
 exynos_gpio_pin_read(void *cookie, int pin)
 {
@@ -235,31 +208,29 @@
 exynos_gpio_pin_ctl(void *cookie, int pin, int flags)
 {
        struct exynos_gpio_bank * const bank = cookie;
-       struct exynos_gpio_pin_cfg ncfg = bank->bank_cfg;
-       u_int shift;
-       int pull;
+       struct exynos_gpio_pin_cfg ncfg = { 0 };
 
        /* honour pullup requests */
-       pull = EXYNOS_GPIO_PIN_FLOAT;
-       if (flags & GPIO_PIN_PULLUP)
-               pull = EXYNOS_GPIO_PIN_PULL_UP;
-       if (flags & GPIO_PIN_PULLDOWN)
-               pull = EXYNOS_GPIO_PIN_PULL_DOWN;
-       shift = (pin & 7) << 1;
-       ncfg.pud &= ~(0x3 << shift);
-       ncfg.pud |= pull << shift;
+       if (flags & GPIO_PIN_PULLUP) {
+               ncfg.pud = EXYNOS_GPIO_PIN_PULL_UP;
+               ncfg.pud_valid = true;
+       }
+       if (flags & GPIO_PIN_PULLDOWN) {
+               ncfg.pud = EXYNOS_GPIO_PIN_PULL_DOWN;
+               ncfg.pud_valid = true;
+       }
 
        /* honour i/o */
        if (flags & GPIO_PIN_INPUT) {
-               ncfg.cfg &= ~(0x0f << shift);
-               ncfg.cfg |= EXYNOS_GPIO_FUNC_INPUT << shift;
+               ncfg.cfg = EXYNOS_GPIO_FUNC_INPUT;
+               ncfg.cfg_valid = true;
        } else if (flags & GPIO_PIN_OUTPUT) {
-               ncfg.cfg &= ~(0x0f << shift);
-               ncfg.cfg |= EXYNOS_GPIO_FUNC_OUTPUT << shift;
+               ncfg.cfg = EXYNOS_GPIO_FUNC_OUTPUT;
+               ncfg.cfg_valid = true;
        }
 
        /* update any config registers that changed */
-       exynos_gpio_update_cfg_regs(bank, &ncfg);
+       exynos_gpio_pin_ctl_write(bank, &ncfg, pin);
 }
 
 void exynos_gpio_pin_ctl_write(const struct exynos_gpio_bank *bank,