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path: root/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c')
-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c137
1 files changed, 40 insertions, 97 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
index 16b8c5bf5efa..e1145b48c76c 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
@@ -24,108 +24,51 @@
#include "priv.h"
-struct nve0_gpio_priv {
- struct nouveau_gpio base;
-};
-
-void
-nve0_gpio_intr(struct nouveau_subdev *subdev)
+static void
+nve0_gpio_intr_stat(struct nouveau_gpio *gpio, u32 *hi, u32 *lo)
{
- struct nve0_gpio_priv *priv = (void *)subdev;
- u32 intr0 = nv_rd32(priv, 0xdc00) & nv_rd32(priv, 0xdc08);
- u32 intr1 = nv_rd32(priv, 0xdc80) & nv_rd32(priv, 0xdc88);
- u32 hi = (intr0 & 0x0000ffff) | (intr1 << 16);
- u32 lo = (intr0 >> 16) | (intr1 & 0xffff0000);
- int i;
-
- for (i = 0; (hi | lo) && i < 32; i++) {
- if ((hi | lo) & (1 << i))
- nouveau_event_trigger(priv->base.events, i);
- }
-
- nv_wr32(priv, 0xdc00, intr0);
- nv_wr32(priv, 0xdc88, intr1);
+ u32 intr0 = nv_rd32(gpio, 0x00dc00);
+ u32 intr1 = nv_rd32(gpio, 0x00dc80);
+ u32 stat0 = nv_rd32(gpio, 0x00dc08) & intr0;
+ u32 stat1 = nv_rd32(gpio, 0x00dc88) & intr1;
+ *lo = (stat1 & 0xffff0000) | (stat0 >> 16);
+ *hi = (stat1 << 16) | (stat0 & 0x0000ffff);
+ nv_wr32(gpio, 0x00dc00, intr0);
+ nv_wr32(gpio, 0x00dc80, intr1);
}
void
-nve0_gpio_intr_enable(struct nouveau_event *event, int line)
+nve0_gpio_intr_mask(struct nouveau_gpio *gpio, u32 type, u32 mask, u32 data)
{
- const u32 addr = line < 16 ? 0xdc00 : 0xdc80;
- const u32 mask = 0x00010001 << (line & 0xf);
- nv_wr32(event->priv, addr + 0x08, mask);
- nv_mask(event->priv, addr + 0x00, mask, mask);
-}
-
-void
-nve0_gpio_intr_disable(struct nouveau_event *event, int line)
-{
- const u32 addr = line < 16 ? 0xdc00 : 0xdc80;
- const u32 mask = 0x00010001 << (line & 0xf);
- nv_wr32(event->priv, addr + 0x08, mask);
- nv_mask(event->priv, addr + 0x00, mask, 0x00000000);
-}
-
-int
-nve0_gpio_fini(struct nouveau_object *object, bool suspend)
-{
- struct nve0_gpio_priv *priv = (void *)object;
- nv_wr32(priv, 0xdc08, 0x00000000);
- nv_wr32(priv, 0xdc88, 0x00000000);
- return nouveau_gpio_fini(&priv->base, suspend);
-}
-
-int
-nve0_gpio_init(struct nouveau_object *object)
-{
- struct nve0_gpio_priv *priv = (void *)object;
- int ret;
-
- ret = nouveau_gpio_init(&priv->base);
- if (ret)
- return ret;
-
- nv_wr32(priv, 0xdc00, 0xffffffff);
- nv_wr32(priv, 0xdc80, 0xffffffff);
- return 0;
-}
-
-void
-nve0_gpio_dtor(struct nouveau_object *object)
-{
- struct nve0_gpio_priv *priv = (void *)object;
- nouveau_gpio_destroy(&priv->base);
-}
-
-static int
-nve0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
- struct nouveau_oclass *oclass, void *data, u32 size,
- struct nouveau_object **pobject)
-{
- struct nve0_gpio_priv *priv;
- int ret;
-
- ret = nouveau_gpio_create(parent, engine, oclass, 32, &priv);
- *pobject = nv_object(priv);
- if (ret)
- return ret;
-
- priv->base.reset = nvd0_gpio_reset;
- priv->base.drive = nvd0_gpio_drive;
- priv->base.sense = nvd0_gpio_sense;
- priv->base.events->priv = priv;
- priv->base.events->enable = nve0_gpio_intr_enable;
- priv->base.events->disable = nve0_gpio_intr_disable;
- nv_subdev(priv)->intr = nve0_gpio_intr;
- return 0;
+ u32 inte0 = nv_rd32(gpio, 0x00dc08);
+ u32 inte1 = nv_rd32(gpio, 0x00dc88);
+ if (type & NVKM_GPIO_LO)
+ inte0 = (inte0 & ~(mask << 16)) | (data << 16);
+ if (type & NVKM_GPIO_HI)
+ inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff);
+ mask >>= 16;
+ data >>= 16;
+ if (type & NVKM_GPIO_LO)
+ inte1 = (inte1 & ~(mask << 16)) | (data << 16);
+ if (type & NVKM_GPIO_HI)
+ inte1 = (inte1 & ~mask) | data;
+ nv_wr32(gpio, 0x00dc08, inte0);
+ nv_wr32(gpio, 0x00dc88, inte1);
}
-struct nouveau_oclass
-nve0_gpio_oclass = {
- .handle = NV_SUBDEV(GPIO, 0xe0),
- .ofuncs = &(struct nouveau_ofuncs) {
- .ctor = nve0_gpio_ctor,
- .dtor = nv50_gpio_dtor,
- .init = nve0_gpio_init,
- .fini = nve0_gpio_fini,
+struct nouveau_oclass *
+nve0_gpio_oclass = &(struct nouveau_gpio_impl) {
+ .base.handle = NV_SUBDEV(GPIO, 0xe0),
+ .base.ofuncs = &(struct nouveau_ofuncs) {
+ .ctor = _nouveau_gpio_ctor,
+ .dtor = _nouveau_gpio_dtor,
+ .init = _nouveau_gpio_init,
+ .fini = _nouveau_gpio_fini,
},
-};
+ .lines = 32,
+ .intr_stat = nve0_gpio_intr_stat,
+ .intr_mask = nve0_gpio_intr_mask,
+ .drive = nvd0_gpio_drive,
+ .sense = nvd0_gpio_sense,
+ .reset = nvd0_gpio_reset,
+}.base;