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Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.26/1083-fix-lcm-reinit-post-resume.patch.patch')
-rwxr-xr-xtarget/linux/s3c24xx/patches-2.6.26/1083-fix-lcm-reinit-post-resume.patch.patch286
1 files changed, 286 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.26/1083-fix-lcm-reinit-post-resume.patch.patch b/target/linux/s3c24xx/patches-2.6.26/1083-fix-lcm-reinit-post-resume.patch.patch
new file mode 100755
index 0000000000..31876a1153
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.26/1083-fix-lcm-reinit-post-resume.patch.patch
@@ -0,0 +1,286 @@
+From 3d71204efba10914e339b411471877b81cf1e5d9 Mon Sep 17 00:00:00 2001
+From: warmcat <andy@warmcat.com>
+Date: Fri, 25 Jul 2008 23:06:01 +0100
+Subject: [PATCH] fix-lcm-reinit-post-resume.patch
+
+---
+ arch/arm/mach-s3c2440/mach-gta02.c | 12 +++++++++
+ drivers/mfd/glamo/glamo-core.c | 15 ++++++++++-
+ drivers/mfd/glamo/glamo-spi-gpio.c | 38 ++++++++++++++++++++++++++--
+ drivers/video/display/jbt6k74.c | 47 ++++++++++++++++++++++++++++++++----
+ include/linux/glamofb.h | 1 +
+ include/linux/jbt6k74.h | 8 ++++++
+ 6 files changed, 111 insertions(+), 10 deletions(-)
+ create mode 100644 include/linux/jbt6k74.h
+
+diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
+index f2b1b66..750fd97 100644
+--- a/arch/arm/mach-s3c2440/mach-gta02.c
++++ b/arch/arm/mach-s3c2440/mach-gta02.c
+@@ -76,6 +76,7 @@
+ #include <asm/plat-s3c24xx/cpu.h>
+ #include <asm/plat-s3c24xx/pm.h>
+ #include <asm/plat-s3c24xx/udc.h>
++#include <linux/jbt6k74.h>
+
+ #include <linux/glamofb.h>
+
+@@ -756,10 +757,21 @@ static struct s3c2410_ts_mach_info gta02_ts_cfg = {
+
+ /* SPI: LCM control interface attached to Glamo3362 */
+
++void gta02_jbt6k74_reset(int devidx, int level)
++{
++ glamo_lcm_reset(level);
++}
++
++
++const struct jbt6k74_platform_data jbt6k74_pdata = {
++ .reset = gta02_jbt6k74_reset,
++};
++
+ static struct spi_board_info gta02_spi_board_info[] = {
+ {
+ .modalias = "jbt6k74",
+ /* platform_data */
++ .platform_data = &jbt6k74_pdata,
+ /* controller_data */
+ /* irq */
+ .max_speed_hz = 10 * 1000 * 1000,
+diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c
+index ffa4945..2076e61 100644
+--- a/drivers/mfd/glamo/glamo-core.c
++++ b/drivers/mfd/glamo/glamo-core.c
+@@ -513,6 +513,17 @@ void glamo_engine_reset(struct glamo_core *glamo, enum glamo_engine engine)
+ }
+ EXPORT_SYMBOL_GPL(glamo_engine_reset);
+
++void glamo_lcm_reset(int level)
++{
++ if (!glamo_handle)
++ return;
++
++ glamo_gpio_setpin(glamo_handle, GLAMO_GPIO4, level);
++ glamo_gpio_cfgpin(glamo_handle, GLAMO_GPIO4_OUTPUT);
++
++}
++EXPORT_SYMBOL_GPL(glamo_lcm_reset);
++
+ enum glamo_pll {
+ GLAMO_PLL1,
+ GLAMO_PLL2,
+@@ -1142,8 +1153,8 @@ static int glamo_resume(struct platform_device *pdev)
+ static struct platform_driver glamo_driver = {
+ .probe = glamo_probe,
+ .remove = glamo_remove,
+- .suspend = glamo_suspend,
+- .resume = glamo_resume,
++ .suspend_late = glamo_suspend,
++ .resume_early = glamo_resume,
+ .driver = {
+ .name = "glamo3362",
+ .owner = THIS_MODULE,
+diff --git a/drivers/mfd/glamo/glamo-spi-gpio.c b/drivers/mfd/glamo/glamo-spi-gpio.c
+index 73926bd..eda7322 100644
+--- a/drivers/mfd/glamo/glamo-spi-gpio.c
++++ b/drivers/mfd/glamo/glamo-spi-gpio.c
+@@ -224,14 +224,46 @@ static int glamo_spigpio_remove(struct platform_device *pdev)
+ return 0;
+ }
+
+-#define glamo_spigpio_suspend NULL
++/*#define glamo_spigpio_suspend NULL
+ #define glamo_spigpio_resume NULL
++*/
++
++
++#ifdef CONFIG_PM
++static int glamo_spigpio_suspend(struct platform_device *pdev, pm_message_t state)
++{
++ return 0;
++}
++
++static int glamo_spigpio_resume(struct platform_device *pdev)
++{
++ struct glamo_spigpio *sp = platform_get_drvdata(pdev);
++
++ if (!sp)
++ return 0;
++
++ /* set state of spi pins */
++ glamo_gpio_setpin(sp->glamo, sp->info->pin_clk, 0);
++ glamo_gpio_setpin(sp->glamo, sp->info->pin_mosi, 0);
++ glamo_gpio_setpin(sp->glamo, sp->info->pin_cs, 1);
++
++ glamo_gpio_cfgpin(sp->glamo, sp->info->pin_clk);
++ glamo_gpio_cfgpin(sp->glamo, sp->info->pin_mosi);
++ glamo_gpio_cfgpin(sp->glamo, sp->info->pin_cs);
++ if (sp->info->pin_miso)
++ glamo_gpio_cfgpin(sp->glamo, sp->info->pin_miso);
++
++ return 0;
++}
++#endif
+
+ static struct platform_driver glamo_spi_drv = {
+ .probe = glamo_spigpio_probe,
+ .remove = glamo_spigpio_remove,
+- .suspend = glamo_spigpio_suspend,
+- .resume = glamo_spigpio_resume,
++#ifdef CONFIG_PM
++ .suspend_late = glamo_spigpio_suspend,
++ .resume_early = glamo_spigpio_resume,
++#endif
+ .driver = {
+ .name = "glamo-spi-gpio",
+ .owner = THIS_MODULE,
+diff --git a/drivers/video/display/jbt6k74.c b/drivers/video/display/jbt6k74.c
+index d021d7e..d7e9442 100644
+--- a/drivers/video/display/jbt6k74.c
++++ b/drivers/video/display/jbt6k74.c
+@@ -27,6 +27,8 @@
+ #include <linux/device.h>
+ #include <linux/platform_device.h>
+ #include <linux/delay.h>
++#include <linux/workqueue.h>
++#include <linux/jbt6k74.h>
+
+ #include <linux/spi/spi.h>
+
+@@ -114,11 +116,15 @@ struct jbt_info {
+ struct mutex lock; /* protects tx_buf and reg_cache */
+ u16 tx_buf[8];
+ u16 reg_cache[0xEE];
++ struct work_struct work;
+ };
+
+ #define JBT_COMMAND 0x000
+ #define JBT_DATA 0x100
+
++static void jbt_resume_work(struct work_struct *work);
++
++
+ static int jbt_reg_write_nodata(struct jbt_info *jbt, u8 reg)
+ {
+ int rc;
+@@ -130,6 +136,9 @@ static int jbt_reg_write_nodata(struct jbt_info *jbt, u8 reg)
+ 1*sizeof(u16));
+ if (rc == 0)
+ jbt->reg_cache[reg] = 0;
++ else
++ printk(KERN_ERR"jbt_reg_write_nodata spi_write ret %d\n",
++ rc);
+
+ mutex_unlock(&jbt->lock);
+
+@@ -149,6 +158,8 @@ static int jbt_reg_write(struct jbt_info *jbt, u8 reg, u8 data)
+ 2*sizeof(u16));
+ if (rc == 0)
+ jbt->reg_cache[reg] = data;
++ else
++ printk(KERN_ERR"jbt_reg_write spi_write ret %d\n", rc);
+
+ mutex_unlock(&jbt->lock);
+
+@@ -169,6 +180,8 @@ static int jbt_reg_write16(struct jbt_info *jbt, u8 reg, u16 data)
+ 3*sizeof(u16));
+ if (rc == 0)
+ jbt->reg_cache[reg] = data;
++ else
++ printk(KERN_ERR"jbt_reg_write16 spi_write ret %d\n", rc);
+
+ mutex_unlock(&jbt->lock);
+
+@@ -563,6 +576,8 @@ static int __devinit jbt_probe(struct spi_device *spi)
+ if (!jbt)
+ return -ENOMEM;
+
++ INIT_WORK(&jbt->work, jbt_resume_work);
++
+ jbt->spi_dev = spi;
+ jbt->state = JBT_STATE_DEEP_STANDBY;
+ mutex_init(&jbt->lock);
+@@ -618,28 +633,50 @@ static int __devexit jbt_remove(struct spi_device *spi)
+ static int jbt_suspend(struct spi_device *spi, pm_message_t state)
+ {
+ struct jbt_info *jbt = dev_get_drvdata(&spi->dev);
++ struct jbt6k74_platform_data *jbt6k74_pdata = spi->dev.platform_data;
+
+ /* Save mode for resume */
+ jbt->last_state = jbt->state;
+ jbt6k74_enter_state(jbt, JBT_STATE_DEEP_STANDBY);
+
++ (jbt6k74_pdata->reset)(0, 0);
++
+ return 0;
+ }
+
+-static int jbt_resume(struct spi_device *spi)
++static void jbt_resume_work(struct work_struct *work)
+ {
+- struct jbt_info *jbt = dev_get_drvdata(&spi->dev);
++ struct jbt_info *jbt = container_of(work, struct jbt_info, work);
++
++ printk(KERN_INFO"jbt_resume_work waiting...\n");
++ msleep(2000);
++ printk(KERN_INFO"jbt_resume_work GO...\n");
+
+- jbt6k74_enter_state(jbt, jbt->last_state);
++ jbt6k74_enter_state(jbt, JBT_STATE_DEEP_STANDBY);
++ msleep(100);
+
+ switch (jbt->last_state) {
+- case JBT_STATE_NORMAL:
+ case JBT_STATE_QVGA_NORMAL:
+- jbt6k74_display_onoff(jbt, 1);
++ jbt6k74_enter_state(jbt, JBT_STATE_QVGA_NORMAL);
+ break;
+ default:
++ jbt6k74_enter_state(jbt, JBT_STATE_NORMAL);
+ break;
+ }
++ jbt6k74_display_onoff(jbt, 1);
++
++ printk(KERN_INFO"jbt_resume_work done...\n");
++}
++
++static int jbt_resume(struct spi_device *spi)
++{
++ struct jbt_info *jbt = dev_get_drvdata(&spi->dev);
++ struct jbt6k74_platform_data *jbt6k74_pdata = spi->dev.platform_data;
++
++ (jbt6k74_pdata->reset)(0, 1);
++
++ if (!schedule_work(&jbt->work))
++ dev_err(&spi->dev, "Unable to schedule LCM wakeup work\n");
+
+ return 0;
+ }
+diff --git a/include/linux/glamofb.h b/include/linux/glamofb.h
+index 24742a2..75eefef 100644
+--- a/include/linux/glamofb.h
++++ b/include/linux/glamofb.h
+@@ -35,5 +35,6 @@ struct glamofb_platform_data {
+
+ void glamofb_cmd_mode(struct glamofb_handle *gfb, int on);
+ int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val);
++void glamo_lcm_reset(int level);
+
+ #endif
+diff --git a/include/linux/jbt6k74.h b/include/linux/jbt6k74.h
+new file mode 100644
+index 0000000..3fbe178
+--- /dev/null
++++ b/include/linux/jbt6k74.h
+@@ -0,0 +1,8 @@
++#ifndef __JBT6K74_H__
++#define __JBT6K74_H__
++
++struct jbt6k74_platform_data {
++ void (* reset)(int devindex, int level);
++};
++
++#endif
+--
+1.5.6.3
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 23:57:22 +0000