]> git.ipfire.org Git - thirdparty/kernel/stable-queue.git/commitdiff
3.10-stable patches
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 11 May 2014 19:17:36 +0000 (21:17 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 11 May 2014 19:17:36 +0000 (21:17 +0200)
added patches:
drm-cirrus-add-power-management-support.patch

queue-3.10/drm-cirrus-add-power-management-support.patch [new file with mode: 0644]
queue-3.10/series

diff --git a/queue-3.10/drm-cirrus-add-power-management-support.patch b/queue-3.10/drm-cirrus-add-power-management-support.patch
new file mode 100644 (file)
index 0000000..d88228c
--- /dev/null
@@ -0,0 +1,106 @@
+From 2f1e800799bf478494cec3573cd63eb34ca89c9d Mon Sep 17 00:00:00 2001
+From: Gerd Hoffmann <kraxel@redhat.com>
+Date: Mon, 14 Apr 2014 11:34:48 +0200
+Subject: drm: cirrus: add power management support
+
+From: Gerd Hoffmann <kraxel@redhat.com>
+
+commit 2f1e800799bf478494cec3573cd63eb34ca89c9d upstream.
+
+cirrus kms driver lacks power management support, thus
+the vga display doesn't work any more after S3 resume.
+
+Fix this by adding suspend and resume functions.
+Also make the mode_set function unblank the screen.
+
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+Signed-off-by: Dave Airlie <airlied@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/gpu/drm/cirrus/cirrus_drv.c  |   42 +++++++++++++++++++++++++++++++++++
+ drivers/gpu/drm/cirrus/cirrus_mode.c |    3 ++
+ 2 files changed, 45 insertions(+)
+
+--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
++++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
+@@ -11,6 +11,7 @@
+ #include <linux/module.h>
+ #include <linux/console.h>
+ #include <drm/drmP.h>
++#include <drm/drm_crtc_helper.h>
+ #include "cirrus_drv.h"
+@@ -75,6 +76,41 @@ static void cirrus_pci_remove(struct pci
+       drm_put_dev(dev);
+ }
++static int cirrus_pm_suspend(struct device *dev)
++{
++      struct pci_dev *pdev = to_pci_dev(dev);
++      struct drm_device *drm_dev = pci_get_drvdata(pdev);
++      struct cirrus_device *cdev = drm_dev->dev_private;
++
++      drm_kms_helper_poll_disable(drm_dev);
++
++      if (cdev->mode_info.gfbdev) {
++              console_lock();
++              fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 1);
++              console_unlock();
++      }
++
++      return 0;
++}
++
++static int cirrus_pm_resume(struct device *dev)
++{
++      struct pci_dev *pdev = to_pci_dev(dev);
++      struct drm_device *drm_dev = pci_get_drvdata(pdev);
++      struct cirrus_device *cdev = drm_dev->dev_private;
++
++      drm_helper_resume_force_mode(drm_dev);
++
++      if (cdev->mode_info.gfbdev) {
++              console_lock();
++              fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 0);
++              console_unlock();
++      }
++
++      drm_kms_helper_poll_enable(drm_dev);
++      return 0;
++}
++
+ static const struct file_operations cirrus_driver_fops = {
+       .owner = THIS_MODULE,
+       .open = drm_open,
+@@ -105,11 +141,17 @@ static struct drm_driver driver = {
+       .dumb_destroy = cirrus_dumb_destroy,
+ };
++static const struct dev_pm_ops cirrus_pm_ops = {
++      SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend,
++                              cirrus_pm_resume)
++};
++
+ static struct pci_driver cirrus_pci_driver = {
+       .name = DRIVER_NAME,
+       .id_table = pciidlist,
+       .probe = cirrus_pci_probe,
+       .remove = cirrus_pci_remove,
++      .driver.pm = &cirrus_pm_ops,
+ };
+ static int __init cirrus_init(void)
+--- a/drivers/gpu/drm/cirrus/cirrus_mode.c
++++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
+@@ -308,6 +308,9 @@ static int cirrus_crtc_mode_set(struct d
+       WREG_HDR(hdr);
+       cirrus_crtc_do_set_base(crtc, old_fb, x, y, 0);
++
++      /* Unblank (needed on S3 resume, vgabios doesn't do it then) */
++      outb(0x20, 0x3c0);
+       return 0;
+ }
index 491e8b53cd3f9ba483126fc49b71e5194cb50996..3c3619dcf13c0f8e74cee7c1ee50f23e8c341a1d 100644 (file)
@@ -45,3 +45,4 @@ dm-thin-fix-dangling-bio-in-process_deferred_bios-error-path.patch
 lockd-ensure-we-tear-down-any-live-sockets-when-socket-creation-fails-during-lockd_up.patch
 input-synaptics-add-min-max-quirk-for-thinkpad-t431s-l440-l540-s1-yoga-and-x1.patch
 input-synaptics-add-min-max-quirk-for-thinkpad-edge-e431.patch
+drm-cirrus-add-power-management-support.patch