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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0249-drm-vc4-handle-the-case-where-there-are-no-available.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0249-drm-vc4-handle-the-case-where-there-are-no-available.patch67
1 files changed, 0 insertions, 67 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0249-drm-vc4-handle-the-case-where-there-are-no-available.patch b/target/linux/bcm27xx/patches-5.4/950-0249-drm-vc4-handle-the-case-where-there-are-no-available.patch
deleted file mode 100644
index 72b205c2e4..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0249-drm-vc4-handle-the-case-where-there-are-no-available.patch
+++ /dev/null
@@ -1,67 +0,0 @@
-From 1fbbd377bd1c6b4e3342d03091f19089ccb7fcbe Mon Sep 17 00:00:00 2001
-From: Jonathan Bell <jonathan@raspberrypi.org>
-Date: Tue, 28 May 2019 13:56:06 +0100
-Subject: [PATCH] drm: vc4: handle the case where there are no
- available displays
-
-It's reasonable for the firmware to return zero as the number of
-attached displays. Handle this case as otherwise drm thinks that
-the DSI panel is attached, which is nonsense.
-
-Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
----
- drivers/gpu/drm/vc4/vc4_firmware_kms.c | 32 +++++++++++++++-----------
- 1 file changed, 18 insertions(+), 14 deletions(-)
-
---- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
-+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
-@@ -1303,13 +1303,13 @@ static int vc4_fkms_bind(struct device *
- RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS,
- &num_displays, sizeof(u32));
-
-- /* If we fail to get the number of displays, or it returns 0, then
-+ /* If we fail to get the number of displays, then
- * assume old firmware that doesn't have the mailbox call, so just
- * set one display
- */
-- if (ret || num_displays == 0) {
-+ if (ret) {
- num_displays = 1;
-- DRM_WARN("Unable to determine number of displays's. Assuming 1\n");
-+ DRM_WARN("Unable to determine number of displays - assuming 1\n");
- ret = 0;
- }
-
-@@ -1338,17 +1338,21 @@ static int vc4_fkms_bind(struct device *
- display_num);
- }
-
-- /* Map the SMI interrupt reg */
-- crtc_list[0]->regs = vc4_ioremap_regs(pdev, 0);
-- if (IS_ERR(crtc_list[0]->regs))
-- DRM_ERROR("Oh dear, failed to map registers\n");
--
-- writel(0, crtc_list[0]->regs + SMICS);
-- ret = devm_request_irq(dev, platform_get_irq(pdev, 0),
-- vc4_crtc_irq_handler, 0, "vc4 firmware kms",
-- crtc_list);
-- if (ret)
-- DRM_ERROR("Oh dear, failed to register IRQ\n");
-+ if (num_displays > 0) {
-+ /* Map the SMI interrupt reg */
-+ crtc_list[0]->regs = vc4_ioremap_regs(pdev, 0);
-+ if (IS_ERR(crtc_list[0]->regs))
-+ DRM_ERROR("Oh dear, failed to map registers\n");
-+
-+ writel(0, crtc_list[0]->regs + SMICS);
-+ ret = devm_request_irq(dev, platform_get_irq(pdev, 0),
-+ vc4_crtc_irq_handler, 0,
-+ "vc4 firmware kms", crtc_list);
-+ if (ret)
-+ DRM_ERROR("Oh dear, failed to register IRQ\n");
-+ } else {
-+ DRM_WARN("No displays found. Consider forcing hotplug if HDMI is attached\n");
-+ }
-
- platform_set_drvdata(pdev, crtc_list);
-