X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0529-drm-v3d-Add-support-for-V3D-v4.2.patch;fp=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0529-drm-v3d-Add-support-for-V3D-v4.2.patch;h=0000000000000000000000000000000000000000;hb=c2308a7e4adbb2acc8ff149f91d1ca46801c135e;hp=35fc072d8af8816b8af181cdcffbe3aaf9f39e1b;hpb=67dcc43f3a22dc3a7ac07a7065971b426feeb043;p=openwrt%2Fstaging%2Fwigyori.git diff --git a/target/linux/brcm2708/patches-4.19/950-0529-drm-v3d-Add-support-for-V3D-v4.2.patch b/target/linux/brcm2708/patches-4.19/950-0529-drm-v3d-Add-support-for-V3D-v4.2.patch deleted file mode 100644 index 35fc072d8a..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0529-drm-v3d-Add-support-for-V3D-v4.2.patch +++ /dev/null @@ -1,207 +0,0 @@ -From b0e7b8814e74be0559e07f737ef18cc3709d4ac4 Mon Sep 17 00:00:00 2001 -From: Eric Anholt -Date: Thu, 4 Oct 2018 17:22:43 -0700 -Subject: [PATCH] drm/v3d: Add support for V3D v4.2. - -No compatible string for it yet, just the version-dependent changes. -They've now tied the hub and the core interrupt lines into a single -interrupt line coming out of the block. It also turns out I made a -mistake in modeling the V3D v3.3 and v4.1 bridge as a part of V3D -itself -- the bridge is going away in favor of an external reset -controller in a larger HW module. - -v2: Use consistent checks for whether we're on 4.2, and fix a leak in - an error path. -v3: Use more general means of determining if the current 4.2 changes - are in place, as apparently other platforms may switch back (noted - by Dave). Update the binding doc. - -Signed-off-by: Eric Anholt ---- - .../devicetree/bindings/gpu/brcm,bcm-v3d.txt | 11 ++++-- - drivers/gpu/drm/v3d/v3d_drv.c | 21 +++++++++--- - drivers/gpu/drm/v3d/v3d_drv.h | 2 ++ - drivers/gpu/drm/v3d/v3d_gem.c | 12 ++++++- - drivers/gpu/drm/v3d/v3d_irq.c | 34 ++++++++++++++----- - 5 files changed, 63 insertions(+), 17 deletions(-) - ---- a/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.txt -+++ b/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.txt -@@ -6,15 +6,20 @@ For V3D 2.x, see brcm,bcm-vc4.txt. - Required properties: - - compatible: Should be "brcm,7268-v3d" or "brcm,7278-v3d" - - reg: Physical base addresses and lengths of the register areas --- reg-names: Names for the register areas. The "hub", "bridge", and "core0" -+- reg-names: Names for the register areas. The "hub" and "core0" - register areas are always required. The "gca" register area -- is required if the GCA cache controller is present. -+ is required if the GCA cache controller is present. The -+ "bridge" register area is required if an external reset -+ controller is not present. - - interrupts: The interrupt numbers. The first interrupt is for the hub, -- while the following interrupts are for the cores. -+ while the following interrupts are separate interrupt lines -+ for the cores (if they don't share the hub's interrupt). - See bindings/interrupt-controller/interrupts.txt - - Optional properties: - - clocks: The core clock the unit runs on -+- resets: The reset line for v3d, if not using a mapping of the bridge -+ See bindings/reset/reset.txt - - v3d { - compatible = "brcm,7268-v3d"; ---- a/drivers/gpu/drm/v3d/v3d_drv.c -+++ b/drivers/gpu/drm/v3d/v3d_drv.c -@@ -19,6 +19,7 @@ - #include - #include - #include -+#include - #include - #include - -@@ -265,10 +266,6 @@ static int v3d_platform_drm_probe(struct - v3d->pdev = pdev; - drm = &v3d->drm; - -- ret = map_regs(v3d, &v3d->bridge_regs, "bridge"); -- if (ret) -- goto dev_free; -- - ret = map_regs(v3d, &v3d->hub_regs, "hub"); - if (ret) - goto dev_free; -@@ -283,6 +280,22 @@ static int v3d_platform_drm_probe(struct - v3d->cores = V3D_GET_FIELD(ident1, V3D_HUB_IDENT1_NCORES); - WARN_ON(v3d->cores > 1); /* multicore not yet implemented */ - -+ v3d->reset = devm_reset_control_get_exclusive(dev, NULL); -+ if (IS_ERR(v3d->reset)) { -+ ret = PTR_ERR(v3d->reset); -+ -+ if (ret == -EPROBE_DEFER) -+ goto dev_free; -+ -+ v3d->reset = NULL; -+ ret = map_regs(v3d, &v3d->bridge_regs, "bridge"); -+ if (ret) { -+ dev_err(dev, -+ "Failed to get reset control or bridge regs\n"); -+ goto dev_free; -+ } -+ } -+ - if (v3d->ver < 41) { - ret = map_regs(v3d, &v3d->gca_regs, "gca"); - if (ret) ---- a/drivers/gpu/drm/v3d/v3d_drv.h -+++ b/drivers/gpu/drm/v3d/v3d_drv.h -@@ -34,6 +34,7 @@ struct v3d_dev { - * and revision. - */ - int ver; -+ bool single_irq_line; - - struct device *dev; - struct platform_device *pdev; -@@ -42,6 +43,7 @@ struct v3d_dev { - void __iomem *bridge_regs; - void __iomem *gca_regs; - struct clk *clk; -+ struct reset_control *reset; - - /* Virtual and DMA addresses of the single shared page table. */ - volatile u32 *pt; ---- a/drivers/gpu/drm/v3d/v3d_gem.c -+++ b/drivers/gpu/drm/v3d/v3d_gem.c -@@ -6,6 +6,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -69,7 +70,7 @@ v3d_idle_gca(struct v3d_dev *v3d) - } - - static void --v3d_reset_v3d(struct v3d_dev *v3d) -+v3d_reset_by_bridge(struct v3d_dev *v3d) - { - int version = V3D_BRIDGE_READ(V3D_TOP_GR_BRIDGE_REVISION); - -@@ -89,6 +90,15 @@ v3d_reset_v3d(struct v3d_dev *v3d) - V3D_TOP_GR_BRIDGE_SW_INIT_1_V3D_CLK_108_SW_INIT); - V3D_BRIDGE_WRITE(V3D_TOP_GR_BRIDGE_SW_INIT_1, 0); - } -+} -+ -+static void -+v3d_reset_v3d(struct v3d_dev *v3d) -+{ -+ if (v3d->reset) -+ reset_control_reset(v3d->reset); -+ else -+ v3d_reset_by_bridge(v3d); - - v3d_init_hw_state(v3d); - } ---- a/drivers/gpu/drm/v3d/v3d_irq.c -+++ b/drivers/gpu/drm/v3d/v3d_irq.c -@@ -27,6 +27,9 @@ - V3D_HUB_INT_MMU_CAP | \ - V3D_HUB_INT_TFUC)) - -+static irqreturn_t -+v3d_hub_irq(int irq, void *arg); -+ - static void - v3d_overflow_mem_work(struct work_struct *work) - { -@@ -112,6 +115,12 @@ v3d_irq(int irq, void *arg) - if (intsts & V3D_INT_GMPV) - dev_err(v3d->dev, "GMP violation\n"); - -+ /* V3D 4.2 wires the hub and core IRQs together, so if we & -+ * didn't see the common one then check hub for MMU IRQs. -+ */ -+ if (v3d->single_irq_line && status == IRQ_NONE) -+ return v3d_hub_irq(irq, arg); -+ - return status; - } - -@@ -170,15 +179,22 @@ v3d_irq_init(struct v3d_dev *v3d) - V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); - V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS); - -- ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0), -- v3d_hub_irq, IRQF_SHARED, -- "v3d_hub", v3d); -- if (ret) -- goto fail; -- -- ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 1), -- v3d_irq, IRQF_SHARED, -- "v3d_core0", v3d); -+ if (platform_get_irq(v3d->pdev, 1) < 0) { -+ ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0), -+ v3d_irq, IRQF_SHARED, -+ "v3d", v3d); -+ v3d->single_irq_line = true; -+ } else { -+ ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0), -+ v3d_hub_irq, IRQF_SHARED, -+ "v3d_hub", v3d); -+ if (ret) -+ goto fail; -+ -+ ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 1), -+ v3d_irq, IRQF_SHARED, -+ "v3d_core0", v3d); -+ } - if (ret) - goto fail; -