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authorDave Airlie <airlied@redhat.com>2017-09-28 05:45:27 +1000
committerDave Airlie <airlied@redhat.com>2017-09-28 05:46:15 +1000
commit29baa82aa55f40d67cfc8138c944fd8880c27e8e (patch)
tree19119a07d3ec8eb1407a68b48ec627239ee3e681 /drivers/gpu/drm/pl111/pl111_versatile.c
parente19b205be43d11bff638cad4487008c48d21c103 (diff)
parentac6c35a4d8c77083525044a192cb1a8711381e94 (diff)
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Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next
UAPI Changes: Cross-subsystem Changes: Core Changes: - DP SDP defines (Ville) - polish for scdc helpers (Thierry Reding) - fix lifetimes for connector/plane state across crtc changes (Maarten Lankhorst). - sparse fixes (Ville+Thierry) - make legacy kms ioctls all interruptible (Maarten) - push edid override into the edid helpers (out of probe helpers) (Jani) - DP ESI defines for link status (DK) Driver Changes: - drm-panel is now in drm-misc! - minor panel-simple cleanups/refactoring by various folks - drm_bridge_add cleanup (Inki Dae) - constify a few i2c_device_id structs (Arvind Yadav) - More patches from Noralf's fb/gem helper cleanup - bridge/synopsis: reset fix (Philippe Cornu) - fix tracepoint include handling in drivers (Thierry) - rockchip: lvds support (Sandy Huang) - move sun4i into drm-misc fold (Maxime Ripard) - sun4i: refactor driver load + support TCON backend/layer muxing (Chen-Yu Tsai) - pl111: support more pl11x variants (Linus Walleij) - bridge/adv7511: robustify probing/edid handling (Lars-Petersen Clausen) New hw support: - S6E63J0X03 panel (Hoegeun Kwon) - OTM8009A panel (Philippe CORNU) - Seiko 43WVF1G panel (Marco Franchi) - tve200 driver (Linus Walleij) Plus assorted of tiny patches all over, including our first outreachy patches from applicants for the winter round! * tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc: (101 commits) drm: add backwards compatibility support for drm_kms_helper.edid_firmware drm: handle override and firmware EDID at drm_do_get_edid() level drm/dp: DPCD register defines for link status within ESI field drm/rockchip: Replace dev_* with DRM_DEV_* drm/tinydrm: Drop driver registered message drm/gem-fb-helper: Use debug message on gem lookup failure drm/imx: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() drm/bridge: adv7511: Constify HDMI CODEC platform data drm/bridge: adv7511: Enable connector polling when no interrupt is specified drm/bridge: adv7511: Remove private copy of the EDID drm/bridge: adv7511: Properly update EDID when no EDID was found drm/crtc: Convert setcrtc ioctl locking to interruptible. drm/atomic: Convert pageflip ioctl locking to interruptible. drm/legacy: Convert setplane ioctl locking to interruptible. drm/legacy: Convert cursor ioctl locking to interruptible. drm/atomic: Convert atomic ioctl locking to interruptible. drm/atomic: Prepare drm_modeset_lock infrastructure for interruptible waiting, v2. drm/tve200: Clean up panel bridging drm/doc: Update todo.rst drm/dp/mst: Sideband message transaction to power up/down nodes ...
Diffstat (limited to 'drivers/gpu/drm/pl111/pl111_versatile.c')
-rw-r--r--drivers/gpu/drm/pl111/pl111_versatile.c270
1 files changed, 270 insertions, 0 deletions
diff --git a/drivers/gpu/drm/pl111/pl111_versatile.c b/drivers/gpu/drm/pl111/pl111_versatile.c
new file mode 100644
index 000000000000..97d4af6925a3
--- /dev/null
+++ b/drivers/gpu/drm/pl111/pl111_versatile.c
@@ -0,0 +1,270 @@
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <drm/drmP.h>
+#include "pl111_versatile.h"
+#include "pl111_drm.h"
+
+static struct regmap *versatile_syscon_map;
+
+/*
+ * We detect the different syscon types from the compatible strings.
+ */
+enum versatile_clcd {
+ INTEGRATOR_CLCD_CM,
+ VERSATILE_CLCD,
+ REALVIEW_CLCD_EB,
+ REALVIEW_CLCD_PB1176,
+ REALVIEW_CLCD_PB11MP,
+ REALVIEW_CLCD_PBA8,
+ REALVIEW_CLCD_PBX,
+};
+
+static const struct of_device_id versatile_clcd_of_match[] = {
+ {
+ .compatible = "arm,core-module-integrator",
+ .data = (void *)INTEGRATOR_CLCD_CM,
+ },
+ {
+ .compatible = "arm,versatile-sysreg",
+ .data = (void *)VERSATILE_CLCD,
+ },
+ {
+ .compatible = "arm,realview-eb-syscon",
+ .data = (void *)REALVIEW_CLCD_EB,
+ },
+ {
+ .compatible = "arm,realview-pb1176-syscon",
+ .data = (void *)REALVIEW_CLCD_PB1176,
+ },
+ {
+ .compatible = "arm,realview-pb11mp-syscon",
+ .data = (void *)REALVIEW_CLCD_PB11MP,
+ },
+ {
+ .compatible = "arm,realview-pba8-syscon",
+ .data = (void *)REALVIEW_CLCD_PBA8,
+ },
+ {
+ .compatible = "arm,realview-pbx-syscon",
+ .data = (void *)REALVIEW_CLCD_PBX,
+ },
+ {},
+};
+
+/*
+ * Core module CLCD control on the Integrator/CP, bits
+ * 8 thru 19 of the CM_CONTROL register controls a bunch
+ * of CLCD settings.
+ */
+#define INTEGRATOR_HDR_CTRL_OFFSET 0x0C
+#define INTEGRATOR_CLCD_LCDBIASEN BIT(8)
+#define INTEGRATOR_CLCD_LCDBIASUP BIT(9)
+#define INTEGRATOR_CLCD_LCDBIASDN BIT(10)
+/* Bits 11,12,13 controls the LCD type */
+#define INTEGRATOR_CLCD_LCDMUX_MASK (BIT(11)|BIT(12)|BIT(13))
+#define INTEGRATOR_CLCD_LCDMUX_LCD24 BIT(11)
+#define INTEGRATOR_CLCD_LCDMUX_VGA565 BIT(12)
+#define INTEGRATOR_CLCD_LCDMUX_SHARP (BIT(11)|BIT(12))
+#define INTEGRATOR_CLCD_LCDMUX_VGA555 BIT(13)
+#define INTEGRATOR_CLCD_LCDMUX_VGA24 (BIT(11)|BIT(12)|BIT(13))
+#define INTEGRATOR_CLCD_LCD0_EN BIT(14)
+#define INTEGRATOR_CLCD_LCD1_EN BIT(15)
+/* R/L flip on Sharp */
+#define INTEGRATOR_CLCD_LCD_STATIC1 BIT(16)
+/* U/D flip on Sharp */
+#define INTEGRATOR_CLCD_LCD_STATIC2 BIT(17)
+/* No connection on Sharp */
+#define INTEGRATOR_CLCD_LCD_STATIC BIT(18)
+/* 0 = 24bit VGA, 1 = 18bit VGA */
+#define INTEGRATOR_CLCD_LCD_N24BITEN BIT(19)
+
+#define INTEGRATOR_CLCD_MASK (INTEGRATOR_CLCD_LCDBIASEN | \
+ INTEGRATOR_CLCD_LCDBIASUP | \
+ INTEGRATOR_CLCD_LCDBIASDN | \
+ INTEGRATOR_CLCD_LCDMUX_MASK | \
+ INTEGRATOR_CLCD_LCD0_EN | \
+ INTEGRATOR_CLCD_LCD1_EN | \
+ INTEGRATOR_CLCD_LCD_STATIC1 | \
+ INTEGRATOR_CLCD_LCD_STATIC2 | \
+ INTEGRATOR_CLCD_LCD_STATIC | \
+ INTEGRATOR_CLCD_LCD_N24BITEN)
+
+static void pl111_integrator_enable(struct drm_device *drm, u32 format)
+{
+ u32 val;
+
+ dev_info(drm->dev, "enable Integrator CLCD connectors\n");
+
+ /* FIXME: really needed? */
+ val = INTEGRATOR_CLCD_LCD_STATIC1 | INTEGRATOR_CLCD_LCD_STATIC2 |
+ INTEGRATOR_CLCD_LCD0_EN | INTEGRATOR_CLCD_LCD1_EN;
+
+ switch (format) {
+ case DRM_FORMAT_XBGR8888:
+ case DRM_FORMAT_XRGB8888:
+ break;
+ case DRM_FORMAT_BGR565:
+ case DRM_FORMAT_RGB565:
+ /* truecolor RGB565 */
+ val |= INTEGRATOR_CLCD_LCDMUX_VGA565;
+ break;
+ case DRM_FORMAT_XBGR1555:
+ case DRM_FORMAT_XRGB1555:
+ /* Pseudocolor, RGB555, BGR555 */
+ val |= INTEGRATOR_CLCD_LCDMUX_VGA555;
+ break;
+ default:
+ dev_err(drm->dev, "unhandled format on Integrator 0x%08x\n",
+ format);
+ break;
+ }
+
+ regmap_update_bits(versatile_syscon_map,
+ INTEGRATOR_HDR_CTRL_OFFSET,
+ INTEGRATOR_CLCD_MASK,
+ val);
+}
+
+/*
+ * This configuration register in the Versatile and RealView
+ * family is uniformly present but appears more and more
+ * unutilized starting with the RealView series.
+ */
+#define SYS_CLCD 0x50
+#define SYS_CLCD_MODE_MASK (BIT(0)|BIT(1))
+#define SYS_CLCD_MODE_888 0
+#define SYS_CLCD_MODE_5551 BIT(0)
+#define SYS_CLCD_MODE_565_R_LSB BIT(1)
+#define SYS_CLCD_MODE_565_B_LSB (BIT(0)|BIT(1))
+#define SYS_CLCD_CONNECTOR_MASK (BIT(2)|BIT(3)|BIT(4)|BIT(5))
+#define SYS_CLCD_NLCDIOON BIT(2)
+#define SYS_CLCD_VDDPOSSWITCH BIT(3)
+#define SYS_CLCD_PWR3V5SWITCH BIT(4)
+#define SYS_CLCD_VDDNEGSWITCH BIT(5)
+
+static void pl111_versatile_disable(struct drm_device *drm)
+{
+ dev_info(drm->dev, "disable Versatile CLCD connectors\n");
+ regmap_update_bits(versatile_syscon_map,
+ SYS_CLCD,
+ SYS_CLCD_CONNECTOR_MASK,
+ 0);
+}
+
+static void pl111_versatile_enable(struct drm_device *drm, u32 format)
+{
+ u32 val = 0;
+
+ dev_info(drm->dev, "enable Versatile CLCD connectors\n");
+
+ switch (format) {
+ case DRM_FORMAT_ABGR8888:
+ case DRM_FORMAT_XBGR8888:
+ case DRM_FORMAT_ARGB8888:
+ case DRM_FORMAT_XRGB8888:
+ val |= SYS_CLCD_MODE_888;
+ break;
+ case DRM_FORMAT_BGR565:
+ val |= SYS_CLCD_MODE_565_R_LSB;
+ break;
+ case DRM_FORMAT_RGB565:
+ val |= SYS_CLCD_MODE_565_B_LSB;
+ break;
+ case DRM_FORMAT_ABGR1555:
+ case DRM_FORMAT_XBGR1555:
+ case DRM_FORMAT_ARGB1555:
+ case DRM_FORMAT_XRGB1555:
+ val |= SYS_CLCD_MODE_5551;
+ break;
+ default:
+ dev_err(drm->dev, "unhandled format on Versatile 0x%08x\n",
+ format);
+ break;
+ }
+
+ /* Set up the MUX */
+ regmap_update_bits(versatile_syscon_map,
+ SYS_CLCD,
+ SYS_CLCD_MODE_MASK,
+ val);
+
+ /* Then enable the display */
+ regmap_update_bits(versatile_syscon_map,
+ SYS_CLCD,
+ SYS_CLCD_CONNECTOR_MASK,
+ SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH);
+}
+
+static void pl111_realview_clcd_disable(struct drm_device *drm)
+{
+ dev_info(drm->dev, "disable RealView CLCD connectors\n");
+ regmap_update_bits(versatile_syscon_map,
+ SYS_CLCD,
+ SYS_CLCD_CONNECTOR_MASK,
+ 0);
+}
+
+static void pl111_realview_clcd_enable(struct drm_device *drm, u32 format)
+{
+ dev_info(drm->dev, "enable RealView CLCD connectors\n");
+ regmap_update_bits(versatile_syscon_map,
+ SYS_CLCD,
+ SYS_CLCD_CONNECTOR_MASK,
+ SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH);
+}
+
+int pl111_versatile_init(struct device *dev, struct pl111_drm_dev_private *priv)
+{
+ const struct of_device_id *clcd_id;
+ enum versatile_clcd versatile_clcd_type;
+ struct device_node *np;
+ struct regmap *map;
+
+ np = of_find_matching_node_and_match(NULL, versatile_clcd_of_match,
+ &clcd_id);
+ if (!np) {
+ /* Non-ARM reference designs, just bail out */
+ return 0;
+ }
+ versatile_clcd_type = (enum versatile_clcd)clcd_id->data;
+
+ map = syscon_node_to_regmap(np);
+ if (IS_ERR(map)) {
+ dev_err(dev, "no Versatile syscon regmap\n");
+ return PTR_ERR(map);
+ }
+
+ switch (versatile_clcd_type) {
+ case INTEGRATOR_CLCD_CM:
+ versatile_syscon_map = map;
+ priv->variant_display_enable = pl111_integrator_enable;
+ dev_info(dev, "set up callbacks for Integrator PL110\n");
+ break;
+ case VERSATILE_CLCD:
+ versatile_syscon_map = map;
+ priv->variant_display_enable = pl111_versatile_enable;
+ priv->variant_display_disable = pl111_versatile_disable;
+ dev_info(dev, "set up callbacks for Versatile PL110+\n");
+ break;
+ case REALVIEW_CLCD_EB:
+ case REALVIEW_CLCD_PB1176:
+ case REALVIEW_CLCD_PB11MP:
+ case REALVIEW_CLCD_PBA8:
+ case REALVIEW_CLCD_PBX:
+ versatile_syscon_map = map;
+ priv->variant_display_enable = pl111_realview_clcd_enable;
+ priv->variant_display_disable = pl111_realview_clcd_disable;
+ dev_info(dev, "set up callbacks for RealView PL111\n");
+ break;
+ default:
+ dev_info(dev, "unknown Versatile system controller\n");
+ break;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pl111_versatile_init);