From 571157f685aadb66d521e15ef5010629f29aacc0 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Thu, 22 May 2008 11:33:54 -0600 Subject: [PATCH] OMAP3 PM: convert open-coded iterator to use pwrdm_for_each_clkdm() Convert iterators of the list of clockdomains in a powerdomain to use pwrdm_for_each_clkdm(), rather than an open-coded for-loop. This also fixes a bug when the D2D clockdomain is added to the 3430ES2 chip. The open-coded for-loop tested for a NULL pointer in pwrdm_clkdms[] to determine when to end the loop. This causes the iterator to fall off the end of the array when the powerdomain contains the maximum number of clockdomains per powerdomain (currently 3). Signed-off-by: Paul Walmsley Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/pm34xx.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index a1bfb30f0cf..7e775cc2b20 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -179,6 +179,22 @@ static int omap3_can_sleep(void) return 1; } +/* _clkdm_deny_idle - private callback function used by set_pwrdm_state() */ +static int _clkdm_deny_idle(struct powerdomain *pwrdm, + struct clockdomain *clkdm) +{ + omap2_clkdm_deny_idle(clkdm); + return 0; +} + +/* _clkdm_allow_idle - private callback function used by set_pwrdm_state() */ +static int _clkdm_allow_idle(struct powerdomain *pwrdm, + struct clockdomain *clkdm) +{ + omap2_clkdm_allow_idle(clkdm); + return 0; +} + /* This sets pwrdm state (other than mpu & core. Currently only ON & * RET are supported. Function is assuming that clkdm doesn't have * hw_sup mode enabled. */ @@ -186,7 +202,6 @@ static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state) { u32 cur_state; int ret = 0; - int i = 0; if (pwrdm == NULL || IS_ERR(pwrdm)) return -EINVAL; @@ -196,8 +211,7 @@ static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state) if (cur_state == state) return ret; - for (i = 0; pwrdm->pwrdm_clkdms[i]; i++) - omap2_clkdm_deny_idle(pwrdm->pwrdm_clkdms[i]); + pwrdm_for_each_clkdm(pwrdm, _clkdm_deny_idle); ret = pwrdm_set_next_pwrst(pwrdm, state); if (ret) { @@ -206,8 +220,7 @@ static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state) goto err; } - for (i = 0; pwrdm->pwrdm_clkdms[i]; i++) - omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[i]); + pwrdm_for_each_clkdm(pwrdm, _clkdm_allow_idle); err: return ret; -- 2.41.1