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Diffstat (limited to 'target/linux/s3c24xx/patches/0239-fix-hdq-probe.patch.patch')
-rwxr-xr-xtarget/linux/s3c24xx/patches/0239-fix-hdq-probe.patch.patch107
1 files changed, 107 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches/0239-fix-hdq-probe.patch.patch b/target/linux/s3c24xx/patches/0239-fix-hdq-probe.patch.patch
new file mode 100755
index 0000000000..fbf74184ef
--- /dev/null
+++ b/target/linux/s3c24xx/patches/0239-fix-hdq-probe.patch.patch
@@ -0,0 +1,107 @@
+From 5be7f629cff94bd67ba7d95c800763a9026708f2 Mon Sep 17 00:00:00 2001
+From: Andy Green <andy@openmoko.com>
+Date: Wed, 6 Aug 2008 12:16:38 +0100
+Subject: [PATCH] fix-hdq-probe.patch
+
+Signed-off-by: Andy Green <andy@openmoko.com>
+---
+ arch/arm/mach-s3c2440/mach-gta02.c | 9 ++++-----
+ drivers/power/gta02_hdq.c | 22 ++++++++++++++++------
+ 2 files changed, 20 insertions(+), 11 deletions(-)
+
+diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
+index be2d901..aeedd42 100644
+--- a/arch/arm/mach-s3c2440/mach-gta02.c
++++ b/arch/arm/mach-s3c2440/mach-gta02.c
+@@ -38,6 +38,7 @@
+ #include <linux/spi/glamo.h>
+ #include <linux/spi/spi_bitbang.h>
+ #include <linux/mmc/host.h>
++#include <linux/version.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/nand.h>
+@@ -111,8 +112,7 @@ static int gta02_charger_active_status;
+ */
+ struct fiq_ipc fiq_ipc;
+ EXPORT_SYMBOL(fiq_ipc);
+-
+-#define DIVISOR_FROM_US(x) ((x) << 1)
++#define DIVISOR_FROM_US(x) ((x) << 3)
+
+ #define FIQ_DIVISOR_VIBRATOR DIVISOR_FROM_US(100)
+
+@@ -184,9 +184,9 @@ FIQ_HANDLER_ENTRY(256, 512)
+ if (hdq_shifter & 1)
+ hdq_ctr = 50 / HDQ_SAMPLE_PERIOD_US;
+ else
+- hdq_ctr = 120 / HDQ_SAMPLE_PERIOD_US;
++ hdq_ctr = 140 / HDQ_SAMPLE_PERIOD_US;
+ /* carefully precompute the other phase length */
+- hdq_ctr2 = (210 - (hdq_ctr * HDQ_SAMPLE_PERIOD_US)) /
++ hdq_ctr2 = (220 - (hdq_ctr * HDQ_SAMPLE_PERIOD_US)) /
+ HDQ_SAMPLE_PERIOD_US;
+ hdq_state = HDQB_ADS_LOW;
+ hdq_shifter >>= 1;
+@@ -782,7 +782,6 @@ struct platform_device gta02_hdq_device = {
+ };
+ #endif
+
+-
+ /* NOR Flash */
+
+ #define GTA02_FLASH_BASE 0x18000000 /* GCS3 */
+diff --git a/drivers/power/gta02_hdq.c b/drivers/power/gta02_hdq.c
+index 5a79fd6..6c228b4 100644
+--- a/drivers/power/gta02_hdq.c
++++ b/drivers/power/gta02_hdq.c
+@@ -40,7 +40,7 @@ int gta02hdq_read(int address)
+ mutex_lock(&fiq_ipc.hdq_lock);
+
+ fiq_ipc.hdq_ads = address | HDQ_READ;
+- fiq_ipc.hdq_request_ctr++;
++ fiq_ipc.hdq_request_ctr = fiq_ipc.hdq_transaction_ctr + 1;
+ fiq_kick();
+ /*
+ * FIQ takes care of it while we block our calling process
+@@ -53,9 +53,13 @@ int gta02hdq_read(int address)
+ if (fiq_ipc.hdq_request_ctr != fiq_ipc.hdq_transaction_ctr)
+ continue;
+
+- if (fiq_ipc.hdq_error)
++ if (fiq_ipc.hdq_error) {
++ printk(KERN_ERR "hdq timeout %d, %d / %d\n",
++ fiq_ipc.hdq_error, fiq_ipc.hdq_request_ctr,
++ fiq_ipc.hdq_transaction_ctr);
+ goto done; /* didn't see a response in good time */
+-
++ }
++
+ ret = fiq_ipc.hdq_rx_data;
+ goto done;
+ }
+@@ -193,12 +197,18 @@ static int __init gta02hdq_probe(struct platform_device *pdev)
+ {
+ struct resource *r = platform_get_resource(pdev, 0, 0);
+
+- if (!machine_is_neo1973_gta02())
++ printk(KERN_ERR "gta02hdq driver starting\n");
++
++ if (!machine_is_neo1973_gta02()) {
++ printk(KERN_ERR "gta02hdq_probe only for GTA02\n");
+ return -EIO;
++ }
+
+- if (!r)
++ if (!r) {
++ printk(KERN_ERR "gta02hdq_probe missing resource for GPIO\n");
+ return -EINVAL;
+-
++ }
++
+ platform_set_drvdata(pdev, NULL);
+
+ mutex_init(&fiq_ipc.hdq_lock);
+--
+1.5.6.3
+