From adfba3220b625ce4bee08e7e6f48c8a27aac23bb Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Tue, 8 Jan 2013 23:07:27 +0200 Subject: mei: don't use cached value for hcsr in mei_hw_reset Open code mei_hw_reset to avoid using cached hcsr. Using cached hcsr can cause unwanted side effects. Move mei_hw_restet function to hw-me.c as it is hw dependent Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/init.c | 28 ---------------------------- 1 file changed, 28 deletions(-) (limited to 'drivers/misc/mei/init.c') diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 2391832bfa6f..5c2054d06f6b 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -169,22 +169,6 @@ out: return ret; } -/** - * mei_hw_reset - resets fw via mei csr register. - * - * @dev: the device structure - * @interrupts_enabled: if interrupt should be enabled after reset. - */ -static void mei_hw_reset(struct mei_device *dev, int interrupts_enabled) -{ - dev->host_hw_state |= (H_RST | H_IG); - - if (interrupts_enabled) - mei_enable_interrupts(dev); - else - mei_disable_interrupts(dev); -} - /** * mei_reset - resets host and fw. * @@ -207,20 +191,8 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) dev->dev_state != MEI_DEV_POWER_DOWN && dev->dev_state != MEI_DEV_POWER_UP); - dev->host_hw_state = mei_hcsr_read(dev); - - dev_dbg(&dev->pdev->dev, "before reset host_hw_state = 0x%08x.\n", - dev->host_hw_state); - mei_hw_reset(dev, interrupts_enabled); - dev->host_hw_state &= ~H_RST; - dev->host_hw_state |= H_IG; - - mei_hcsr_set(dev); - - dev_dbg(&dev->pdev->dev, "currently saved host_hw_state = 0x%08x.\n", - dev->host_hw_state); if (dev->dev_state != MEI_DEV_INITIALIZING) { if (dev->dev_state != MEI_DEV_DISABLED && -- cgit v1.2.3