Merge tag 'imx-drm-next-2015-01-09' of git://git.pengutronix.de/git/pza/linux into drm-next

imx-drm mode fixup support, imx-hdmi bridge conversion and imx-drm cleanup

- Implement mode_fixup for a DI vertical timing limitation
- Use generic DRM OF helpers in DRM core
- Convert imx-hdmi to dw_hdmi drm_bridge and add rockchip
  driver
- Add DC use counter to fix multi-display support
- Simplify handling of DI clock flags
- A few small fixes and cleanup

* tag 'imx-drm-next-2015-01-09' of git://git.pengutronix.de/git/pza/linux: (26 commits)
  imx-drm: core: handling of DI clock flags to ipu_crtc_mode_set()
  gpu: ipu-di: Switch to DIV_ROUND_CLOSEST for DI clock divider calc
  gpu: ipu-v3: Use videomode in struct ipu_di_signal_cfg
  imx-drm: encoder prepare/mode_set must use adjusted mode
  imx-drm: ipuv3-crtc: Implement mode_fixup
  drm_modes: add drm_display_mode_to_videomode
  gpu: ipu-di: remove some non-functional code
  gpu: ipu-di: Add ipu_di_adjust_videomode()
  drm: rockchip: export functions needed by rockchip dw_hdmi bridge driver
  drm: bridge/dw_hdmi: request interrupt only after initializing the mutes
  drm: bridge/dw_hdmi: add rockchip rk3288 support
  dt-bindings: Add documentation for rockchip dw hdmi
  drm: bridge/dw_hdmi: add function dw_hdmi_phy_enable_spare
  drm: bridge/dw_hdmi: clear i2cmphy_stat0 reg in hdmi_phy_wait_i2c_done
  drm: bridge/dw_hdmi: add mode_valid support
  drm: bridge/dw_hdmi: add support for multi-byte register width access
  dt-bindings: add document for dw_hdmi
  drm: imx: imx-hdmi: move imx-hdmi to bridge/dw_hdmi
  drm: imx: imx-hdmi: split phy configuration to platform driver
  drm: imx: imx-hdmi: convert imx-hdmi to drm_bridge mode
  ...

1 files changed, 20 insertions, 67 deletions

diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
index b250130debc..a002f53aab0 100644
--- a/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -25,6 +25,7 @@
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_plane_helper.h>
+#include <drm/drm_of.h>
 
 #include "imx-drm.h"
 
@@ -46,7 +47,6 @@ struct imx_drm_crtc {
 	struct drm_crtc				*crtc;
 	int					pipe;
 	struct imx_drm_crtc_helper_funcs	imx_drm_helper_funcs;
-	struct device_node			*port;
 };
 
 static int legacyfb_depth = 16;
@@ -116,8 +116,7 @@ int imx_drm_panel_format_pins(struct drm_encoder *encoder,
 	helper = &imx_crtc->imx_drm_helper_funcs;
 	if (helper->set_interface_pix_fmt)
 		return helper->set_interface_pix_fmt(encoder->crtc,
-				encoder->encoder_type, interface_pix_fmt,
-				hsync_pin, vsync_pin);
+				interface_pix_fmt, hsync_pin, vsync_pin);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(imx_drm_panel_format_pins);
@@ -365,9 +364,10 @@ int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
 
 	imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs;
 	imx_drm_crtc->pipe = imxdrm->pipes++;
-	imx_drm_crtc->port = port;
 	imx_drm_crtc->crtc = crtc;
 
+	crtc->port = port;
+
 	imxdrm->crtc[imx_drm_crtc->pipe] = imx_drm_crtc;
 
 	*new_crtc = imx_drm_crtc;
@@ -408,33 +408,28 @@ int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc)
 }
 EXPORT_SYMBOL_GPL(imx_drm_remove_crtc);
 
-/*
- * Find the DRM CRTC possible mask for the connected endpoint.
- *
- * The encoder possible masks are defined by their position in the
- * mode_config crtc_list.  This means that CRTCs must not be added
- * or removed once the DRM device has been fully initialised.
- */
-static uint32_t imx_drm_find_crtc_mask(struct imx_drm_device *imxdrm,
-	struct device_node *endpoint)
+int imx_drm_encoder_parse_of(struct drm_device *drm,
+	struct drm_encoder *encoder, struct device_node *np)
 {
-	struct device_node *port;
-	unsigned i;
+	uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np);
 
-	port = of_graph_get_remote_port(endpoint);
-	if (!port)
-		return 0;
-	of_node_put(port);
+	/*
+	 * If we failed to find the CRTC(s) which this encoder is
+	 * supposed to be connected to, it's because the CRTC has
+	 * not been registered yet.  Defer probing, and hope that
+	 * the required CRTC is added later.
+	 */
+	if (crtc_mask == 0)
+		return -EPROBE_DEFER;
 
-	for (i = 0; i < MAX_CRTC; i++) {
-		struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[i];
+	encoder->possible_crtcs = crtc_mask;
 
-		if (imx_drm_crtc && imx_drm_crtc->port == port)
-			return drm_crtc_mask(imx_drm_crtc->crtc);
-	}
+	/* FIXME: this is the mask of outputs which can clone this output. */
+	encoder->possible_clones = ~0;
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of);
 
 static struct device_node *imx_drm_of_get_next_endpoint(
 		const struct device_node *parent, struct device_node *prev)
@@ -445,48 +440,6 @@ static struct device_node *imx_drm_of_get_next_endpoint(
 	return node;
 }
 
-int imx_drm_encoder_parse_of(struct drm_device *drm,
-	struct drm_encoder *encoder, struct device_node *np)
-{
-	struct imx_drm_device *imxdrm = drm->dev_private;
-	struct device_node *ep = NULL;
-	uint32_t crtc_mask = 0;
-	int i;
-
-	for (i = 0; ; i++) {
-		u32 mask;
-
-		ep = imx_drm_of_get_next_endpoint(np, ep);
-		if (!ep)
-			break;
-
-		mask = imx_drm_find_crtc_mask(imxdrm, ep);
-
-		/*
-		 * If we failed to find the CRTC(s) which this encoder is
-		 * supposed to be connected to, it's because the CRTC has
-		 * not been registered yet.  Defer probing, and hope that
-		 * the required CRTC is added later.
-		 */
-		if (mask == 0)
-			return -EPROBE_DEFER;
-
-		crtc_mask |= mask;
-	}
-
-	of_node_put(ep);
-	if (i == 0)
-		return -ENOENT;
-
-	encoder->possible_crtcs = crtc_mask;
-
-	/* FIXME: this is the mask of outputs which can clone this output. */
-	encoder->possible_clones = ~0;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of);
-
 /*
  * @node: device tree node containing encoder input ports
  * @encoder: drm_encoder
@@ -510,7 +463,7 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
 
 		port = of_graph_get_remote_port(ep);
 		of_node_put(port);
-		if (port == imx_crtc->port) {
+		if (port == imx_crtc->crtc->port) {
 			ret = of_graph_parse_endpoint(ep, &endpoint);
 			return ret ? ret : endpoint.port;
 		}