From dfb19ed20c322616a73b212c96f2e0309e35cd1a Mon Sep 17 00:00:00 2001 From: Deepak M Date: Thu, 4 Feb 2016 18:55:15 +0200 Subject: [PATCH] drm/i915: Extend gpio read/write to other cores MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Make the gpio read/write functions more generic iosf sideband read/write functions, taking the iosf port as argument. v2: rebase v3: rebase v4 by Jani: address Ville's review v5 by Jani: drop the PCI_DEVFN change (Ville) Signed-off-by: Deepak M Reviewed-by: Ville Syrjälä Signed-off-by: Jani Nikula Link: http://patchwork.freedesktop.org/patch/msgid/1454604915-17142-1-git-send-email-jani.nikula@intel.com --- drivers/gpu/drm/i915/i915_drv.h | 4 ++-- drivers/gpu/drm/i915/i915_reg.h | 2 ++ drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 5 +++-- drivers/gpu/drm/i915/intel_sideband.c | 9 +++++---- 4 files changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index bd126ff3a6e2..8216665405eb 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3471,8 +3471,8 @@ int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr); void vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val); u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr); -u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg); -void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); +u32 vlv_iosf_sb_read(struct drm_i915_private *dev_priv, u8 port, u32 reg); +void vlv_iosf_sb_write(struct drm_i915_private *dev_priv, u8 port, u32 reg, u32 val); u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg); void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 6867295dbdc1..6732fc139196 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -618,6 +618,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define IOSF_PORT_CCK 0x14 #define IOSF_PORT_DPIO_2 0x1a #define IOSF_PORT_FLISDSI 0x1b +#define IOSF_PORT_GPIO_SC 0x48 +#define IOSF_PORT_GPIO_SUS 0xa8 #define IOSF_PORT_CCU 0xa9 #define VLV_IOSF_DATA _MMIO(VLV_DISPLAY_BASE + 0x2104) #define VLV_IOSF_ADDR _MMIO(VLV_DISPLAY_BASE + 0x2108) diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c index 6f013efba45b..76dbd1a36c57 100644 --- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c +++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c @@ -221,14 +221,15 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data) if (!gtable[gpio].init) { /* program the function */ /* FIXME: remove constant below */ - vlv_gpio_nc_write(dev_priv, function, 0x2000CC00); + vlv_iosf_sb_write(dev_priv, IOSF_PORT_GPIO_NC, function, + 0x2000CC00); gtable[gpio].init = 1; } val = 0x4 | action; /* pull up/down */ - vlv_gpio_nc_write(dev_priv, pad, val); + vlv_iosf_sb_write(dev_priv, IOSF_PORT_GPIO_NC, pad, val); mutex_unlock(&dev_priv->sb_lock); out: diff --git a/drivers/gpu/drm/i915/intel_sideband.c b/drivers/gpu/drm/i915/intel_sideband.c index f5b0ab6f5942..c3998188cf35 100644 --- a/drivers/gpu/drm/i915/intel_sideband.c +++ b/drivers/gpu/drm/i915/intel_sideband.c @@ -129,17 +129,18 @@ u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr) return val; } -u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg) +u32 vlv_iosf_sb_read(struct drm_i915_private *dev_priv, u8 port, u32 reg) { u32 val = 0; - vlv_sideband_rw(dev_priv, PCI_DEVFN(0, 0), IOSF_PORT_GPIO_NC, + vlv_sideband_rw(dev_priv, PCI_DEVFN(0, 0), port, SB_CRRDDA_NP, reg, &val); return val; } -void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val) +void vlv_iosf_sb_write(struct drm_i915_private *dev_priv, + u8 port, u32 reg, u32 val) { - vlv_sideband_rw(dev_priv, PCI_DEVFN(0, 0), IOSF_PORT_GPIO_NC, + vlv_sideband_rw(dev_priv, PCI_DEVFN(0, 0), port, SB_CRWRDA_NP, reg, &val); } -- 2.30.2