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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2007-03-14 13:23:44 +0100
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2007-04-27 13:44:13 +0200
commit188ff65d49dadf7b0e9b6718abc3fe98a5098711 (patch)
tree29c930e7609d441f543baade2ddac70665d7bf54 /arch/avr32
parent19b7ce8bad718a2850ea19aeb7383f1728596c24 (diff)
downloadlinux-2.6.34-ux500-188ff65d49dadf7b0e9b6718abc3fe98a5098711.tar.gz
[AVR32] Don't enable clocks with no users
Bring the code that sets the initial PM clock masks in line with the comment preceding it by only enabling clocks that have users != 0. Fix SM clock definition and avr32_hpt_init() so that the SM and TC0 clocks keep ticking. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32')
-rw-r--r--arch/avr32/mach-at32ap/at32ap7000.c14
-rw-r--r--arch/avr32/mach-at32ap/time-tc.c1
2 files changed, 14 insertions, 1 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
index 6eeda60b828..56db45b99a0 100644
--- a/arch/avr32/mach-at32ap/at32ap7000.c
+++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -417,7 +417,15 @@ struct platform_device at32_sm_device = {
.resource = sm_resource,
.num_resources = ARRAY_SIZE(sm_resource),
};
-DEV_CLK(pclk, at32_sm, pbb, 0);
+static struct clk at32_sm_pclk = {
+ .name = "pclk",
+ .dev = &at32_sm_device.dev,
+ .parent = &pbb_clk,
+ .mode = pbb_clk_mode,
+ .get_rate = pbb_clk_get_rate,
+ .users = 1,
+ .index = 0,
+};
static struct resource intc0_resource[] = {
PBMEM(0xfff00400),
@@ -443,6 +451,7 @@ static struct clk hramc_clk = {
.mode = hsb_clk_mode,
.get_rate = hsb_clk_get_rate,
.users = 1,
+ .index = 3,
};
static struct resource smc0_resource[] = {
@@ -1080,6 +1089,9 @@ void __init at32_clock_init(void)
for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
struct clk *clk = at32_clock_list[i];
+ if (clk->users == 0)
+ continue;
+
if (clk->mode == &cpu_clk_mode)
cpu_mask |= 1 << clk->index;
else if (clk->mode == &hsb_clk_mode)
diff --git a/arch/avr32/mach-at32ap/time-tc.c b/arch/avr32/mach-at32ap/time-tc.c
index 7ac0e94d8ed..e3070bdd4bb 100644
--- a/arch/avr32/mach-at32ap/time-tc.c
+++ b/arch/avr32/mach-at32ap/time-tc.c
@@ -135,6 +135,7 @@ int avr32_hpt_init(unsigned int count)
pr_debug("timer: could not get clk: %ld\n", PTR_ERR(pclk));
goto out_error;
}
+ clk_enable(pclk);
regs = platform_get_resource(&at32_systc0_device, IORESOURCE_MEM, 0);
if (!regs) {