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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/gpu/drm/gma500/cdv_intel_lvds.c
....@@ -1,18 +1,6 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Copyright © 2006-2011 Intel Corporation
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program; if not, write to the Free Software Foundation, Inc.,
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- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
164  *
175  * Authors:
186  *	Eric Anholt <eric@anholt.net>
....@@ -20,17 +8,18 @@
208  *	Jesse Barnes <jesse.barnes@intel.com>
219  */
2210 
23
-#include <linux/i2c.h>
2411 #include <linux/dmi.h>
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-#include <drm/drmP.h>
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+#include <linux/i2c.h>
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+#include <linux/pm_runtime.h>
2614 
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+#include <drm/drm_simple_kms_helper.h>
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+
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+#include "cdv_device.h"
2718 #include "intel_bios.h"
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+#include "power.h"
2820 #include "psb_drv.h"
2921 #include "psb_intel_drv.h"
3022 #include "psb_intel_reg.h"
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-#include "power.h"
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-#include <linux/pm_runtime.h>
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-#include "cdv_device.h"
3423 
3524 /**
3625  * LVDS I2C backlight control macros
....@@ -84,89 +73,6 @@
8473 
8574 	return retval;
8675 }
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-
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-#if 0
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-/*
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- * Set LVDS backlight level by I2C command
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- */
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-static int cdv_lvds_i2c_set_brightness(struct drm_device *dev,
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-					unsigned int level)
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-{
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-	struct drm_psb_private *dev_priv = dev->dev_private;
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-	struct psb_intel_i2c_chan *lvds_i2c_bus = dev_priv->lvds_i2c_bus;
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-	u8 out_buf[2];
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-	unsigned int blc_i2c_brightness;
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-
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-	struct i2c_msg msgs[] = {
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-		{
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-			.addr = lvds_i2c_bus->slave_addr,
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-			.flags = 0,
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-			.len = 2,
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-			.buf = out_buf,
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-		}
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-	};
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-
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-	blc_i2c_brightness = BRIGHTNESS_MASK & ((unsigned int)level *
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-			     BRIGHTNESS_MASK /
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-			     BRIGHTNESS_MAX_LEVEL);
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-
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-	if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
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-		blc_i2c_brightness = BRIGHTNESS_MASK - blc_i2c_brightness;
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-
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-	out_buf[0] = dev_priv->lvds_bl->brightnesscmd;
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-	out_buf[1] = (u8)blc_i2c_brightness;
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-
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-	if (i2c_transfer(&lvds_i2c_bus->adapter, msgs, 1) == 1)
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-		return 0;
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-
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-	DRM_ERROR("I2C transfer error\n");
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-	return -1;
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-}
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-
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-
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-static int cdv_lvds_pwm_set_brightness(struct drm_device *dev, int level)
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-{
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-	struct drm_psb_private *dev_priv = dev->dev_private;
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-
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-	u32 max_pwm_blc;
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-	u32 blc_pwm_duty_cycle;
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-
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-	max_pwm_blc = cdv_intel_lvds_get_max_backlight(dev);
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-
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-	/*BLC_PWM_CTL Should be initiated while backlight device init*/
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-	BUG_ON((max_pwm_blc & PSB_BLC_MAX_PWM_REG_FREQ) == 0);
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-
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-	blc_pwm_duty_cycle = level * max_pwm_blc / BRIGHTNESS_MAX_LEVEL;
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-
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-	if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
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-		blc_pwm_duty_cycle = max_pwm_blc - blc_pwm_duty_cycle;
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-
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-	blc_pwm_duty_cycle &= PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR;
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-	REG_WRITE(BLC_PWM_CTL,
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-		  (max_pwm_blc << PSB_BACKLIGHT_PWM_CTL_SHIFT) |
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-		  (blc_pwm_duty_cycle));
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-
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-	return 0;
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-}
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-
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-/*
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- * Set LVDS backlight level either by I2C or PWM
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- */
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-void cdv_intel_lvds_set_brightness(struct drm_device *dev, int level)
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-{
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-	struct drm_psb_private *dev_priv = dev->dev_private;
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-
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-	if (!dev_priv->lvds_bl) {
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-		DRM_ERROR("NO LVDS Backlight Info\n");
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-		return;
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-	}
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-
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-	if (dev_priv->lvds_bl->type == BLC_I2C_TYPE)
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-		cdv_lvds_i2c_set_brightness(dev, level);
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-	else
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-		cdv_lvds_pwm_set_brightness(dev, level);
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-}
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-#endif
17076 
17177 /**
17278  * Sets the backlight level.
....@@ -512,16 +418,6 @@
512418 	.destroy = cdv_intel_lvds_destroy,
513419 };
514420 
515
-
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-static void cdv_intel_lvds_enc_destroy(struct drm_encoder *encoder)
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-{
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-	drm_encoder_cleanup(encoder);
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-}
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-
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-static const struct drm_encoder_funcs cdv_intel_lvds_enc_funcs = {
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-	.destroy = cdv_intel_lvds_enc_destroy,
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-};
524
-
525421 /*
526422  * Enumerate the child dev array parsed from VBT to check whether
527423  * the LVDS is present.
....@@ -629,10 +525,7 @@
629525 			   &cdv_intel_lvds_connector_funcs,
630526 			   DRM_MODE_CONNECTOR_LVDS);
631527 
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-	drm_encoder_init(dev, encoder,
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-			 &cdv_intel_lvds_enc_funcs,
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-			 DRM_MODE_ENCODER_LVDS, NULL);
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-
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+	drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_LVDS);
636529 
637530 	gma_connector_attach_encoder(gma_connector, gma_encoder);
638531 	gma_encoder->type = INTEL_OUTPUT_LVDS;