From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/gpu/drm/gma500/mdfld_device.c | 50 ++++++++++++++++++++++++++++++--------------------
1 files changed, 30 insertions(+), 20 deletions(-)
diff --git a/kernel/drivers/gpu/drm/gma500/mdfld_device.c b/kernel/drivers/gpu/drm/gma500/mdfld_device.c
index e2ab858..be9cf6b 100644
--- a/kernel/drivers/gpu/drm/gma500/mdfld_device.c
+++ b/kernel/drivers/gpu/drm/gma500/mdfld_device.c
@@ -1,29 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0-only
/**************************************************************************
* Copyright (c) 2011, Intel Corporation.
* All Rights Reserved.
*
- * 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.
- *
**************************************************************************/
-#include "psb_drv.h"
-#include "mid_bios.h"
-#include "mdfld_output.h"
-#include "mdfld_dsi_output.h"
-#include "tc35876x-dsi-lvds.h"
+#include <linux/delay.h>
+#include <linux/gpio/machine.h>
#include <asm/intel_scu_ipc.h>
+
+#include "mdfld_dsi_output.h"
+#include "mdfld_output.h"
+#include "mid_bios.h"
+#include "psb_drv.h"
+#include "tc35876x-dsi-lvds.h"
#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
@@ -342,7 +333,7 @@
if (pipenum == 1) {
/* restore palette (gamma) */
- /*DRM_UDELAY(50000); */
+ /* udelay(50000); */
for (i = 0; i < 256; i++)
PSB_WVDC32(pipe->palette[i], map->palette + (i << 2));
@@ -404,7 +395,7 @@
PSB_WVDC32(pipe->conf, map->conf);
/* restore palette (gamma) */
- /*DRM_UDELAY(50000); */
+ /* udelay(50000); */
for (i = 0; i < 256; i++)
PSB_WVDC32(pipe->palette[i], map->palette + (i << 2));
@@ -515,12 +506,31 @@
},
};
+/*
+ * The GPIO lines for resetting DSI pipe 0 and 2 are available in the
+ * PCI device 0000:00:0c.0 on the Medfield.
+ */
+static struct gpiod_lookup_table mdfld_dsi_pipe_gpio_table = {
+ .table = {
+ GPIO_LOOKUP("0000:00:0c.0", 128, "dsi-pipe0-reset",
+ GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("0000:00:0c.0", 34, "dsi-pipe2-reset",
+ GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
static int mdfld_chip_setup(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
if (pci_enable_msi(dev->pdev))
dev_warn(dev->dev, "Enabling MSI failed!\n");
dev_priv->regmap = mdfld_regmap;
+
+ /* Associate the GPIO lines with the DRM device */
+ mdfld_dsi_pipe_gpio_table.dev_id = dev_name(dev->dev);
+ gpiod_add_lookup_table(&mdfld_dsi_pipe_gpio_table);
+
return mid_chip_setup(dev);
}
--
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