[patch 2/6] PS3: Fix lpm read pm interval
From: Geoff Levand <hidden>
Date: 2008-02-08 22:54:22
From: Takashi Yamamoto <redacted> ps3_read_pm (pm_interval) should return an actual HW register value because the pm_interval register is a counter register. This patch removes the shadow pm_interval register. Signed-off-by: Takashi Yamamoto <redacted> Signed-off-by: Geoff Levand <redacted> --- drivers/ps3/ps3-lpm.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-)
--- a/drivers/ps3/ps3-lpm.c
+++ b/drivers/ps3/ps3-lpm.c@@ -76,7 +76,6 @@ * * @pm_control: Shadow of the processor's pm_control register. * @pm_start_stop: Shadow of the processor's pm_start_stop register. - * @pm_interval: Shadow of the processor's pm_interval register. * @group_control: Shadow of the processor's group_control register. * @debug_bus_control: Shadow of the processor's debug_bus_control register. *
@@ -91,7 +90,6 @@ struct ps3_lpm_shadow_regs { u64 pm_control; u64 pm_start_stop; - u64 pm_interval; u64 group_control; u64 debug_bus_control; };
@@ -408,7 +406,14 @@ u32 ps3_read_pm(u32 cpu, enum pm_reg_nam case pm_start_stop: return lpm_priv->shadow.pm_start_stop; case pm_interval: - return lpm_priv->shadow.pm_interval; + result = lv1_set_lpm_interval(lpm_priv->lpm_id, 0, 0, &val); + if (result) { + val = 0; + dev_dbg(sbd_core(), "%s:%u: lv1 set_inteval failed: " + "reg %u, %s\n", __func__, __LINE__, reg, + ps3_result(result)); + } + return (u32)val; case group_control: return lpm_priv->shadow.group_control; case debug_bus_control:
@@ -475,10 +480,8 @@ void ps3_write_pm(u32 cpu, enum pm_reg_n lpm_priv->shadow.pm_control = val; break; case pm_interval: - if (val != lpm_priv->shadow.pm_interval) - result = lv1_set_lpm_interval(lpm_priv->lpm_id, val, - PS3_WRITE_PM_MASK, &dummy); - lpm_priv->shadow.pm_interval = val; + result = lv1_set_lpm_interval(lpm_priv->lpm_id, val, + PS3_WRITE_PM_MASK, &dummy); break; case pm_start_stop: if (val != lpm_priv->shadow.pm_start_stop)
@@ -1140,7 +1143,6 @@ int ps3_lpm_open(enum ps3_lpm_tb_type tb lpm_priv->shadow.pm_control = PS3_LPM_SHADOW_REG_INIT; lpm_priv->shadow.pm_start_stop = PS3_LPM_SHADOW_REG_INIT; - lpm_priv->shadow.pm_interval = PS3_LPM_SHADOW_REG_INIT; lpm_priv->shadow.group_control = PS3_LPM_SHADOW_REG_INIT; lpm_priv->shadow.debug_bus_control = PS3_LPM_SHADOW_REG_INIT;
--