Merge tag 'drm-misc-next-2025-10-02' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.19:

UAPI Changes:

Cross-subsystem Changes:
-  fbcon cleanups.
- Make drivers depend on FB_TILEBLITTING instead of selecting it,
  and hide FB_MODE_HELPERS.

Core Changes:
- More preparations for rust.
- Throttle dirty worker with vblank
- Use drm_for_each_bridge_in_chain_scoped in drm's bridge code and
  assorted fixes.
- Ensure drm_client_modeset tests are enabled in UML.
- Rename ttm_bo_put to ttm_bo_fini, as a further step in removing the
  TTM bo refcount.
- Add POST_LT_ADJ_REQ training sequence.
- Show list of removed but still allocated bridges.
- Add a simulated vblank interrupt for hardware without it,
  and add some helpers to use them in vkms and hypervdrm.

Driver Changes:
- Assorted small fixes, cleanups and updates to host1x, tegra,
  panthor,   amdxdna, gud, vc4, ssd130x, ivpu, panfrost, panthor,
  sysfb, bridge/sn65dsi86, solomon, ast, tidss.
- Convert drivers from using .round_rate() to .determine_rate()
- Add support for KD116N3730A07/A12, chromebook mt8189, JT101TM023,
  LQ079L1SX01, raspberrypi 5" panels.
- Improve reclocking on tegra186+ with nouveau.
- Improve runtime pm in amdxdna.
- Add support for HTX_PAI in imx.
- Use a helper to calculate dumb buffer sizes in most drivers.

Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://lore.kernel.org/r/b412fb91-8545-466a-8102-d89c0f2758a7@linux.intel.com

1 files changed, 64 insertions, 3 deletions

diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index 473faa92d08c..a89735c6a462 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -37,6 +37,7 @@
 #include <drm/drm_fbdev_shmem.h>
 #include <drm/drm_gem_shmem_helper.h>
 #include <drm/drm_module.h>
+#include <drm/drm_print.h>
 #include <drm/drm_probe_helper.h>
 
 #include "ast_drv.h"
@@ -46,6 +47,32 @@ static int ast_modeset = -1;
 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
 module_param_named(modeset, ast_modeset, int, 0400);
 
+void ast_device_init(struct ast_device *ast,
+		     enum ast_chip chip,
+		     enum ast_config_mode config_mode,
+		     void __iomem *regs,
+		     void __iomem *ioregs)
+{
+	ast->chip = chip;
+	ast->config_mode = config_mode;
+	ast->regs = regs;
+	ast->ioregs = ioregs;
+}
+
+void __ast_device_set_tx_chip(struct ast_device *ast, enum ast_tx_chip tx_chip)
+{
+	static const char * const info_str[] = {
+		"analog VGA",
+		"Sil164 TMDS transmitter",
+		"DP501 DisplayPort transmitter",
+		"ASPEED DisplayPort transmitter",
+	};
+
+	drm_info(&ast->base, "Using %s\n", info_str[tx_chip]);
+
+	ast->tx_chip = tx_chip;
+}
+
 /*
  * DRM driver
  */
@@ -266,7 +293,7 @@ static int ast_detect_chip(struct pci_dev *pdev,
 	*chip_out = chip;
 	*config_mode_out = config_mode;
 
-	return 0;
+	return __AST_CHIP_GEN(chip);
 }
 
 static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
@@ -277,6 +304,7 @@ static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	void __iomem *ioregs;
 	enum ast_config_mode config_mode;
 	enum ast_chip chip;
+	unsigned int chip_gen;
 	struct drm_device *drm;
 	bool need_post = false;
 
@@ -349,10 +377,43 @@ static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return ret;
 
 	ret = ast_detect_chip(pdev, regs, ioregs, &chip, &config_mode);
-	if (ret)
+	if (ret < 0)
 		return ret;
+	chip_gen = ret;
 
-	drm = ast_device_create(pdev, &ast_driver, chip, config_mode, regs, ioregs, need_post);
+	switch (chip_gen) {
+	case 1:
+		drm = ast_2000_device_create(pdev, &ast_driver, chip, config_mode,
+					     regs, ioregs, need_post);
+		break;
+	case 2:
+		drm = ast_2100_device_create(pdev, &ast_driver, chip, config_mode,
+					     regs, ioregs, need_post);
+		break;
+	case 3:
+		drm = ast_2200_device_create(pdev, &ast_driver, chip, config_mode,
+					     regs, ioregs, need_post);
+		break;
+	case 4:
+		drm = ast_2300_device_create(pdev, &ast_driver, chip, config_mode,
+					     regs, ioregs, need_post);
+		break;
+	case 5:
+		drm = ast_2400_device_create(pdev, &ast_driver, chip, config_mode,
+					     regs, ioregs, need_post);
+		break;
+	case 6:
+		drm = ast_2500_device_create(pdev, &ast_driver, chip, config_mode,
+					     regs, ioregs, need_post);
+		break;
+	case 7:
+		drm = ast_2600_device_create(pdev, &ast_driver, chip, config_mode,
+					     regs, ioregs, need_post);
+		break;
+	default:
+		dev_err(&pdev->dev, "Gen%d not supported\n", chip_gen);
+		return -ENODEV;
+	}
 	if (IS_ERR(drm))
 		return PTR_ERR(drm);
 	pci_set_drvdata(pdev, drm);