V4L/DVB (5799): Or51211: remove hardcoded fcv1236d tuner programming

[linux-2.6-omap-h63xx.git] / drivers / acpi / ec.c

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index e08cf98f504f12583174d23468a60bf4f9a28c14..82f496c07675c66e3cf76020cfbf81fc3dc4139f 100644 (file)
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -147,9 +147,10 @@ static inline int acpi_ec_check_status(struct acpi_ec *ec, enum ec_event event,
        return 0;
 }
 
-static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, unsigned count)
+static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event,
+                        unsigned count, int force_poll)
 {
-       if (acpi_ec_mode == EC_POLL) {
+       if (unlikely(force_poll) || acpi_ec_mode == EC_POLL) {
                unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY);
                while (time_before(jiffies, delay)) {
                        if (acpi_ec_check_status(ec, event, 0))
@@ -173,14 +174,15 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, unsigned count)
 
 static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
                                        const u8 * wdata, unsigned wdata_len,
-                                       u8 * rdata, unsigned rdata_len)
+                                       u8 * rdata, unsigned rdata_len,
+                                       int force_poll)
 {
        int result = 0;
        unsigned count = atomic_read(&ec->event_count);
        acpi_ec_write_cmd(ec, command);
 
        for (; wdata_len > 0; --wdata_len) {
-               result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count);
+               result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count, force_poll);
                if (result) {
                        printk(KERN_ERR PREFIX
                               "write_cmd timeout, command = %d\n", command);
@@ -191,7 +193,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
        }
 
        if (!rdata_len) {
-               result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count);
+               result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count, force_poll);
                if (result) {
                        printk(KERN_ERR PREFIX
                               "finish-write timeout, command = %d\n", command);
@@ -202,7 +204,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
        }
 
        for (; rdata_len > 0; --rdata_len) {
-               result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, count);
+               result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, count, force_poll);
                if (result) {
                        printk(KERN_ERR PREFIX "read timeout, command = %d\n",
                               command);
@@ -217,7 +219,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
 
 static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
                               const u8 * wdata, unsigned wdata_len,
-                              u8 * rdata, unsigned rdata_len)
+                              u8 * rdata, unsigned rdata_len,
+                              int force_poll)
 {
        int status;
        u32 glk;
@@ -240,7 +243,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
        /* Make sure GPE is enabled before doing transaction */
        acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
 
-       status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0);
+       status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0, 0);
        if (status) {
                printk(KERN_DEBUG PREFIX
                       "input buffer is not empty, aborting transaction\n");
@@ -249,7 +252,8 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 
        status = acpi_ec_transaction_unlocked(ec, command,
                                              wdata, wdata_len,
-                                             rdata, rdata_len);
+                                             rdata, rdata_len,
+                                             force_poll);
 
       end:
 
@@ -267,12 +271,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 int acpi_ec_burst_enable(struct acpi_ec *ec)
 {
        u8 d;
-       return acpi_ec_transaction(ec, ACPI_EC_BURST_ENABLE, NULL, 0, &d, 1);
+       return acpi_ec_transaction(ec, ACPI_EC_BURST_ENABLE, NULL, 0, &d, 1, 0);
 }
 
 int acpi_ec_burst_disable(struct acpi_ec *ec)
 {
-       return acpi_ec_transaction(ec, ACPI_EC_BURST_DISABLE, NULL, 0, NULL, 0);
+       return acpi_ec_transaction(ec, ACPI_EC_BURST_DISABLE, NULL, 0, NULL, 0, 0);
 }
 
 static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
@@ -281,7 +285,7 @@ static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
        u8 d;
 
        result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_READ,
-                                    &address, 1, &d, 1);
+                                    &address, 1, &d, 1, 0);
        *data = d;
        return result;
 }
@@ -290,7 +294,7 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data)
 {
        u8 wdata[2] = { address, data };
        return acpi_ec_transaction(ec, ACPI_EC_COMMAND_WRITE,
-                                  wdata, 2, NULL, 0);
+                                  wdata, 2, NULL, 0, 0);
 }
 
 /*
@@ -349,13 +353,15 @@ EXPORT_SYMBOL(ec_write);
 
 int ec_transaction(u8 command,
                   const u8 * wdata, unsigned wdata_len,
-                  u8 * rdata, unsigned rdata_len)
+                  u8 * rdata, unsigned rdata_len,
+                  int force_poll)
 {
        if (!first_ec)
                return -ENODEV;
 
        return acpi_ec_transaction(first_ec, command, wdata,
-                                  wdata_len, rdata, rdata_len);
+                                  wdata_len, rdata, rdata_len,
+                                  force_poll);
 }
 
 EXPORT_SYMBOL(ec_transaction);
@@ -374,7 +380,7 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 * data)
         * bit to be cleared (and thus clearing the interrupt source).
         */
 
-       result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_QUERY, NULL, 0, &d, 1);
+       result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_QUERY, NULL, 0, &d, 1, 0);
        if (result)
                return result;
 
@@ -410,6 +416,7 @@ static u32 acpi_ec_gpe_handler(void *data)
        acpi_status status = AE_OK;
        u8 value;
        struct acpi_ec *ec = data;
+
        atomic_inc(&ec->event_count);
 
        if (acpi_ec_mode == EC_INTR) {