From d0875edd9374296af8702d850254809e34a809cd Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 23 Jul 2010 11:31:08 +1000 Subject: [PATCH] drm/nv50: add function to control GPIO IRQ reporting Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_drv.h | 1 + drivers/gpu/drm/nouveau/nv50_display.c | 20 ++------------------ drivers/gpu/drm/nouveau/nv50_gpio.c | 19 +++++++++++++++++++ drivers/gpu/drm/nouveau/nv50_mc.c | 13 +++++++++++++ 4 files changed, 35 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 9d53f3d1487..6b24186a103 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -1140,6 +1140,7 @@ int nv17_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state); /* nv50_gpio.c */ int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag); int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state); +void nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on); /* nv50_calc. */ int nv50_calc_pll(struct drm_device *, struct pll_lims *, int clk, diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index c19ed8c8e3b..fbd91c251ee 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -184,7 +184,7 @@ nv50_display_init(struct drm_device *dev) struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; struct nouveau_channel *evo = dev_priv->evo; struct drm_connector *connector; - uint32_t val, ram_amount, hpd_en[2]; + uint32_t val, ram_amount; uint64_t start; int ret, i; @@ -365,26 +365,10 @@ nv50_display_init(struct drm_device *dev) NV50_PDISPLAY_INTR_EN_CLK_UNK40)); /* enable hotplug interrupts */ - hpd_en[0] = hpd_en[1] = 0; list_for_each_entry(connector, &dev->mode_config.connector_list, head) { struct nouveau_connector *conn = nouveau_connector(connector); - struct dcb_gpio_entry *gpio; - - if (conn->dcb->gpio_tag == 0xff) - continue; - - gpio = nouveau_bios_gpio_entry(dev, conn->dcb->gpio_tag); - if (!gpio) - continue; - hpd_en[gpio->line >> 4] |= (0x00010001 << (gpio->line & 0xf)); - } - - nv_wr32(dev, 0xe054, 0xffffffff); - nv_wr32(dev, 0xe050, hpd_en[0]); - if (dev_priv->chipset >= 0x90) { - nv_wr32(dev, 0xe074, 0xffffffff); - nv_wr32(dev, 0xe070, hpd_en[1]); + nv50_gpio_irq_enable(dev, conn->dcb->gpio_tag, true); } return 0; diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c index bb47ad73726..88715c5003c 100644 --- a/drivers/gpu/drm/nouveau/nv50_gpio.c +++ b/drivers/gpu/drm/nouveau/nv50_gpio.c @@ -74,3 +74,22 @@ nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state) nv_wr32(dev, r, v); return 0; } + +void +nv50_gpio_irq_enable(struct drm_device *dev, enum dcb_gpio_tag tag, bool on) +{ + struct dcb_gpio_entry *gpio; + u32 reg, mask; + + gpio = nouveau_bios_gpio_entry(dev, tag); + if (!gpio) { + NV_ERROR(dev, "gpio tag 0x%02x not found\n", tag); + return; + } + + reg = gpio->line < 16 ? 0xe050 : 0xe070; + mask = 0x00010001 << (gpio->line & 0xf); + + nv_wr32(dev, reg + 4, mask); + nv_mask(dev, reg + 0, mask, on ? mask : 0); +} diff --git a/drivers/gpu/drm/nouveau/nv50_mc.c b/drivers/gpu/drm/nouveau/nv50_mc.c index e0a9c3faa20..f680e8e121b 100644 --- a/drivers/gpu/drm/nouveau/nv50_mc.c +++ b/drivers/gpu/drm/nouveau/nv50_mc.c @@ -31,7 +31,20 @@ int nv50_mc_init(struct drm_device *dev) { + struct drm_nouveau_private *dev_priv = dev->dev_private; + nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF); + + /* disable, and ack any pending gpio interrupts + * XXX doesn't technically belong here, but it'll do for the moment + */ + nv_wr32(dev, 0xe050, 0x00000000); + nv_wr32(dev, 0xe054, 0xffffffff); + if (dev_priv->chipset >= 0x90) { + nv_wr32(dev, 0xe070, 0x00000000); + nv_wr32(dev, 0xe074, 0xffffffff); + } + return 0; } -- 2.20.1