diff options
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1142-s3c24xx-pwm-platform-driver.patch.patch')
| -rw-r--r-- | target/linux/s3c24xx/patches-2.6.24/1142-s3c24xx-pwm-platform-driver.patch.patch | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.24/1142-s3c24xx-pwm-platform-driver.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1142-s3c24xx-pwm-platform-driver.patch.patch deleted file mode 100644 index 4e23331ed2..0000000000 --- a/target/linux/s3c24xx/patches-2.6.24/1142-s3c24xx-pwm-platform-driver.patch.patch +++ /dev/null @@ -1,127 +0,0 @@ -From 966a29020932751ba6a1a137b0e1e25ac0708be7 Mon Sep 17 00:00:00 2001 -From: matt_hsu <matt_hsu@openmoko.org> -Date: Thu, 8 May 2008 10:23:07 +0100 -Subject: [PATCH] s3c24xx-pwm-platform-driver.patch - -This patch is to register pwm as platform driver to keep the PWM-related -config when system is in suspend/resume. This could fix the following -issue after resume: - -- HDQ read timeout -- LEDs blinked abnormally(if LEDs is driven by PWM) - -Signed-off-by: Matt Hsu <matt_hsu@openmoko.org> ---- - arch/arm/mach-s3c2410/pwm.c | 63 ++++++++++++++++++++++++++++++++++++ - arch/arm/mach-s3c2440/mach-gta02.c | 6 +++ - 2 files changed, 69 insertions(+), 0 deletions(-) - -diff --git a/arch/arm/mach-s3c2410/pwm.c b/arch/arm/mach-s3c2410/pwm.c -index 23738c1..86a4faa 100644 ---- a/arch/arm/mach-s3c2410/pwm.c -+++ b/arch/arm/mach-s3c2410/pwm.c -@@ -20,10 +20,17 @@ - #include <linux/kernel.h> - #include <linux/init.h> - #include <linux/clk.h> -+#include <linux/device.h> - #include <asm/hardware.h> - #include <asm/plat-s3c/regs-timer.h> - #include <asm/arch/pwm.h> - -+#ifdef CONFIG_PM -+ static unsigned long standby_reg_tcon; -+ static unsigned long standby_reg_tcfg0; -+ static unsigned long standby_reg_tcfg1; -+#endif -+ - int s3c2410_pwm_disable(struct s3c2410_pwm *pwm) - { - unsigned long tcon; -@@ -212,3 +219,59 @@ int s3c2410_pwm_dumpregs(void) - return 0; - } - EXPORT_SYMBOL_GPL(s3c2410_pwm_dumpregs); -+ -+static int __init s3c24xx_pwm_probe(struct platform_device *pdev) -+{ -+ dev_info(&pdev->dev, "s3c24xx_pwm is registered \n"); -+ -+ return 0; -+} -+ -+#ifdef CONFIG_PM -+static int s3c24xx_pwm_suspend(struct platform_device *pdev, pm_message_t state) -+{ -+ /* PWM config should be kept in suspending */ -+ standby_reg_tcon = __raw_readl(S3C2410_TCON); -+ standby_reg_tcfg0 = __raw_readl(S3C2410_TCFG0); -+ standby_reg_tcfg1 = __raw_readl(S3C2410_TCFG1); -+ -+ return 0; -+} -+ -+static int s3c24xx_pwm_resume(struct platform_device *pdev) -+{ -+ __raw_writel(standby_reg_tcon, S3C2410_TCON); -+ __raw_writel(standby_reg_tcfg0, S3C2410_TCFG0); -+ __raw_writel(standby_reg_tcfg1, S3C2410_TCFG1); -+ -+ return 0; -+} -+#else -+#define sc32440_pwm_suspend NULL -+#define sc32440_pwm_resume NULL -+#endif -+ -+static struct platform_driver s3c24xx_pwm_driver = { -+ .driver = { -+ .name = "s3c24xx_pwm", -+ .owner = THIS_MODULE, -+ }, -+ .probe = s3c24xx_pwm_probe, -+ .suspend = s3c24xx_pwm_suspend, -+ .resume = s3c24xx_pwm_resume, -+}; -+ -+static int __init s3c24xx_pwm_init(void) -+{ -+ return platform_driver_register(&s3c24xx_pwm_driver); -+} -+ -+static void __exit s3c24xx_pwm_exit(void) -+{ -+} -+ -+MODULE_AUTHOR("Javi Roman <javiroman@kernel-labs.org>"); -+MODULE_LICENSE("GPL"); -+ -+module_init(s3c24xx_pwm_init); -+module_exit(s3c24xx_pwm_exit); -diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c -index 27babc9..1954121 100644 ---- a/arch/arm/mach-s3c2440/mach-gta02.c -+++ b/arch/arm/mach-s3c2440/mach-gta02.c -@@ -719,6 +719,11 @@ static struct platform_device gta02_sdio_dev = { - .num_resources = ARRAY_SIZE(gta02_sdio_resources), - }; - -+struct platform_device s3c24xx_pwm_device = { -+ .name = "s3c24xx_pwm", -+ .num_resources = 0, -+}; -+ - static struct platform_device *gta02_devices[] __initdata = { - &s3c_device_usb, - &s3c_device_wdt, -@@ -731,6 +736,7 @@ static struct platform_device *gta02_devices[] __initdata = { - >a02_nor_flash, - &sc32440_fiq_device, - >a02_version_device, -+ &s3c24xx_pwm_device, - }; - - static struct s3c2410_nand_set gta02_nand_sets[] = { --- -1.5.6.5 - |