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authorOlof Johansson2012-10-18 02:05:25 +0200
committerOlof Johansson2012-10-18 02:05:25 +0200
commitb5beb20d03c89a1ea7cb208c445546f2c62225e4 (patch)
tree903875467ff7fef37762be9edb3e8407bd49f056 /arch/arm
parentMerge tag 'tegra-for-3.7-fixes-for-rc2' of git://git.kernel.org/pub/scm/linux... (diff)
parentARM: OMAP2+: Allow kernel to boot even if GPMC fails to reserve memory (diff)
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Merge tag 'omap-for-v3.7-rc1/fixes-take5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren: A boot problem fix for am33xx beaglebone caused by GPMC, a regression fix for local timer, and a clockdomain locking fix. Also few minor fixes for boot time and sparse warnings. * tag 'omap-for-v3.7-rc1/fixes-take5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Allow kernel to boot even if GPMC fails to reserve memory ARM: OMAP: clockdomain: Fix locking on _clkdm_clk_hwmod_enable / disable ARM: OMAP4: devices: fixup OMAP4 DMIC platform device error message ARM: OMAP2+: clock data: Add dev-id for the omap-gpmc dummy fck ARM: OMAP: resolve sparse warning concerning debug_card_init() ARM: OMAP4: Fix twd_local_timer_register regression
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-omap2/clock44xx_data.c2
-rw-r--r--arch/arm/mach-omap2/clockdomain.c15
-rw-r--r--arch/arm/mach-omap2/devices.c2
-rw-r--r--arch/arm/mach-omap2/gpmc.c24
-rw-r--r--arch/arm/mach-omap2/timer.c2
-rw-r--r--arch/arm/plat-omap/debug-devices.c1
6 files changed, 34 insertions, 12 deletions
diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index d661d138f270..6efc30c961a5 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -3294,7 +3294,7 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "auxclk5_src_ck", &auxclk5_src_ck, CK_443X),
CLK(NULL, "auxclk5_ck", &auxclk5_ck, CK_443X),
CLK(NULL, "auxclkreq5_ck", &auxclkreq5_ck, CK_443X),
- CLK(NULL, "gpmc_ck", &dummy_ck, CK_443X),
+ CLK("omap-gpmc", "fck", &dummy_ck, CK_443X),
CLK("omap_i2c.1", "ick", &dummy_ck, CK_443X),
CLK("omap_i2c.2", "ick", &dummy_ck, CK_443X),
CLK("omap_i2c.3", "ick", &dummy_ck, CK_443X),
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index cbb879139c51..512e79a842cb 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -925,15 +925,18 @@ static int _clkdm_clk_hwmod_enable(struct clockdomain *clkdm)
if (!clkdm || !arch_clkdm || !arch_clkdm->clkdm_clk_enable)
return -EINVAL;
+ spin_lock_irqsave(&clkdm->lock, flags);
+
/*
* For arch's with no autodeps, clkcm_clk_enable
* should be called for every clock instance or hwmod that is
* enabled, so the clkdm can be force woken up.
*/
- if ((atomic_inc_return(&clkdm->usecount) > 1) && autodeps)
+ if ((atomic_inc_return(&clkdm->usecount) > 1) && autodeps) {
+ spin_unlock_irqrestore(&clkdm->lock, flags);
return 0;
+ }
- spin_lock_irqsave(&clkdm->lock, flags);
arch_clkdm->clkdm_clk_enable(clkdm);
pwrdm_state_switch(clkdm->pwrdm.ptr);
spin_unlock_irqrestore(&clkdm->lock, flags);
@@ -950,15 +953,19 @@ static int _clkdm_clk_hwmod_disable(struct clockdomain *clkdm)
if (!clkdm || !arch_clkdm || !arch_clkdm->clkdm_clk_disable)
return -EINVAL;
+ spin_lock_irqsave(&clkdm->lock, flags);
+
if (atomic_read(&clkdm->usecount) == 0) {
+ spin_unlock_irqrestore(&clkdm->lock, flags);
WARN_ON(1); /* underflow */
return -ERANGE;
}
- if (atomic_dec_return(&clkdm->usecount) > 0)
+ if (atomic_dec_return(&clkdm->usecount) > 0) {
+ spin_unlock_irqrestore(&clkdm->lock, flags);
return 0;
+ }
- spin_lock_irqsave(&clkdm->lock, flags);
arch_clkdm->clkdm_clk_disable(clkdm);
pwrdm_state_switch(clkdm->pwrdm.ptr);
spin_unlock_irqrestore(&clkdm->lock, flags);
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index c8c211731d26..cba60e05e32e 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -341,7 +341,7 @@ static void __init omap_init_dmic(void)
oh = omap_hwmod_lookup("dmic");
if (!oh) {
- printk(KERN_ERR "Could not look up mcpdm hw_mod\n");
+ pr_err("Could not look up dmic hw_mod\n");
return;
}
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 5ac5cf30406a..92b5718fa722 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -868,9 +868,9 @@ static void __devexit gpmc_mem_exit(void)
}
-static void __devinit gpmc_mem_init(void)
+static int __devinit gpmc_mem_init(void)
{
- int cs;
+ int cs, rc;
unsigned long boot_rom_space = 0;
/* never allocate the first page, to facilitate bug detection;
@@ -890,13 +890,21 @@ static void __devinit gpmc_mem_init(void)
if (!gpmc_cs_mem_enabled(cs))
continue;
gpmc_cs_get_memconf(cs, &base, &size);
- if (gpmc_cs_insert_mem(cs, base, size) < 0)
- BUG();
+ rc = gpmc_cs_insert_mem(cs, base, size);
+ if (IS_ERR_VALUE(rc)) {
+ while (--cs >= 0)
+ if (gpmc_cs_mem_enabled(cs))
+ gpmc_cs_delete_mem(cs);
+ return rc;
+ }
}
+
+ return 0;
}
static __devinit int gpmc_probe(struct platform_device *pdev)
{
+ int rc;
u32 l;
struct resource *res;
@@ -936,7 +944,13 @@ static __devinit int gpmc_probe(struct platform_device *pdev)
dev_info(gpmc_dev, "GPMC revision %d.%d\n", GPMC_REVISION_MAJOR(l),
GPMC_REVISION_MINOR(l));
- gpmc_mem_init();
+ rc = gpmc_mem_init();
+ if (IS_ERR_VALUE(rc)) {
+ clk_disable_unprepare(gpmc_l3_clk);
+ clk_put(gpmc_l3_clk);
+ dev_err(gpmc_dev, "failed to reserve memory\n");
+ return rc;
+ }
if (IS_ERR_VALUE(gpmc_setup_irq()))
dev_warn(gpmc_dev, "gpmc_setup_irq failed\n");
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 44f9aa7ec0c0..69e46631a7cd 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -467,7 +467,7 @@ OMAP_SYS_TIMER(3_am33xx)
#ifdef CONFIG_ARCH_OMAP4
#ifdef CONFIG_LOCAL_TIMERS
static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
- OMAP44XX_LOCAL_TWD_BASE, 29 + OMAP_INTC_START);
+ OMAP44XX_LOCAL_TWD_BASE, 29);
#endif
static void __init omap4_timer_init(void)
diff --git a/arch/arm/plat-omap/debug-devices.c b/arch/arm/plat-omap/debug-devices.c
index c7a4c0902b38..5a4678edd65a 100644
--- a/arch/arm/plat-omap/debug-devices.c
+++ b/arch/arm/plat-omap/debug-devices.c
@@ -16,6 +16,7 @@
#include <linux/smc91x.h>
#include <mach/hardware.h>
+#include "../mach-omap2/debug-devices.h"
/* Many OMAP development platforms reuse the same "debug board"; these
* platforms include H2, H3, H4, and Perseus2.