From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/gpu/drm/gma500/cdv_intel_lvds.c | 123 ++--------------------------------------
1 files changed, 8 insertions(+), 115 deletions(-)
diff --git a/kernel/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/kernel/drivers/gpu/drm/gma500/cdv_intel_lvds.c
index 9c84461..eaaf4ef 100644
--- a/kernel/drivers/gpu/drm/gma500/cdv_intel_lvds.c
+++ b/kernel/drivers/gpu/drm/gma500/cdv_intel_lvds.c
@@ -1,18 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright © 2006-2011 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* Authors:
* Eric Anholt <eric@anholt.net>
@@ -20,17 +8,18 @@
* Jesse Barnes <jesse.barnes@intel.com>
*/
-#include <linux/i2c.h>
#include <linux/dmi.h>
-#include <drm/drmP.h>
+#include <linux/i2c.h>
+#include <linux/pm_runtime.h>
+#include <drm/drm_simple_kms_helper.h>
+
+#include "cdv_device.h"
#include "intel_bios.h"
+#include "power.h"
#include "psb_drv.h"
#include "psb_intel_drv.h"
#include "psb_intel_reg.h"
-#include "power.h"
-#include <linux/pm_runtime.h>
-#include "cdv_device.h"
/**
* LVDS I2C backlight control macros
@@ -84,89 +73,6 @@
return retval;
}
-
-#if 0
-/*
- * Set LVDS backlight level by I2C command
- */
-static int cdv_lvds_i2c_set_brightness(struct drm_device *dev,
- unsigned int level)
-{
- struct drm_psb_private *dev_priv = dev->dev_private;
- struct psb_intel_i2c_chan *lvds_i2c_bus = dev_priv->lvds_i2c_bus;
- u8 out_buf[2];
- unsigned int blc_i2c_brightness;
-
- struct i2c_msg msgs[] = {
- {
- .addr = lvds_i2c_bus->slave_addr,
- .flags = 0,
- .len = 2,
- .buf = out_buf,
- }
- };
-
- blc_i2c_brightness = BRIGHTNESS_MASK & ((unsigned int)level *
- BRIGHTNESS_MASK /
- BRIGHTNESS_MAX_LEVEL);
-
- if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
- blc_i2c_brightness = BRIGHTNESS_MASK - blc_i2c_brightness;
-
- out_buf[0] = dev_priv->lvds_bl->brightnesscmd;
- out_buf[1] = (u8)blc_i2c_brightness;
-
- if (i2c_transfer(&lvds_i2c_bus->adapter, msgs, 1) == 1)
- return 0;
-
- DRM_ERROR("I2C transfer error\n");
- return -1;
-}
-
-
-static int cdv_lvds_pwm_set_brightness(struct drm_device *dev, int level)
-{
- struct drm_psb_private *dev_priv = dev->dev_private;
-
- u32 max_pwm_blc;
- u32 blc_pwm_duty_cycle;
-
- max_pwm_blc = cdv_intel_lvds_get_max_backlight(dev);
-
- /*BLC_PWM_CTL Should be initiated while backlight device init*/
- BUG_ON((max_pwm_blc & PSB_BLC_MAX_PWM_REG_FREQ) == 0);
-
- blc_pwm_duty_cycle = level * max_pwm_blc / BRIGHTNESS_MAX_LEVEL;
-
- if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
- blc_pwm_duty_cycle = max_pwm_blc - blc_pwm_duty_cycle;
-
- blc_pwm_duty_cycle &= PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR;
- REG_WRITE(BLC_PWM_CTL,
- (max_pwm_blc << PSB_BACKLIGHT_PWM_CTL_SHIFT) |
- (blc_pwm_duty_cycle));
-
- return 0;
-}
-
-/*
- * Set LVDS backlight level either by I2C or PWM
- */
-void cdv_intel_lvds_set_brightness(struct drm_device *dev, int level)
-{
- struct drm_psb_private *dev_priv = dev->dev_private;
-
- if (!dev_priv->lvds_bl) {
- DRM_ERROR("NO LVDS Backlight Info\n");
- return;
- }
-
- if (dev_priv->lvds_bl->type == BLC_I2C_TYPE)
- cdv_lvds_i2c_set_brightness(dev, level);
- else
- cdv_lvds_pwm_set_brightness(dev, level);
-}
-#endif
/**
* Sets the backlight level.
@@ -512,16 +418,6 @@
.destroy = cdv_intel_lvds_destroy,
};
-
-static void cdv_intel_lvds_enc_destroy(struct drm_encoder *encoder)
-{
- drm_encoder_cleanup(encoder);
-}
-
-static const struct drm_encoder_funcs cdv_intel_lvds_enc_funcs = {
- .destroy = cdv_intel_lvds_enc_destroy,
-};
-
/*
* Enumerate the child dev array parsed from VBT to check whether
* the LVDS is present.
@@ -629,10 +525,7 @@
&cdv_intel_lvds_connector_funcs,
DRM_MODE_CONNECTOR_LVDS);
- drm_encoder_init(dev, encoder,
- &cdv_intel_lvds_enc_funcs,
- DRM_MODE_ENCODER_LVDS, NULL);
-
+ drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_LVDS);
gma_connector_attach_encoder(gma_connector, gma_encoder);
gma_encoder->type = INTEL_OUTPUT_LVDS;
--
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