On 10/02/2012 10:05 PM, Mauro Carvalho Chehab wrote:
Due to udev-182, the firmware load was changed to be async, as
otherwise udev would give up of loading a firmware.

Add an option to return to the previous behaviour, async firmware
loads cause failures with the tda18271 driver.

Signed-off-by: Mauro Carvalho Chehab <mche...@redhat.com>

Tested-by: Antti Palosaari <cr...@iki.fi>

Hauppauge WinTV HVR 930C
MaxMedia UB425-TC
PCTV QuatroStick nano (520e)


---
  drivers/media/dvb-frontends/drxk.h      |  2 ++
  drivers/media/dvb-frontends/drxk_hard.c | 20 +++++++++++++++-----
  2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/drivers/media/dvb-frontends/drxk.h 
b/drivers/media/dvb-frontends/drxk.h
index d615d7d..94fecfb 100644
--- a/drivers/media/dvb-frontends/drxk.h
+++ b/drivers/media/dvb-frontends/drxk.h
@@ -28,6 +28,7 @@
   *                            A value of 0 (default) or lower indicates that
   *                            the correct number of parameters will be
   *                            automatically detected.
+ * @load_firmware_sync:                Force the firmware load to be 
synchronous.
   *
   * On the *_gpio vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is
   * UIO-3.
@@ -39,6 +40,7 @@ struct drxk_config {
        bool    parallel_ts;
        bool    dynamic_clk;
        bool    enable_merr_cfg;
+       bool    load_firmware_sync;

        bool    antenna_dvbt;
        u16     antenna_gpio;
diff --git a/drivers/media/dvb-frontends/drxk_hard.c 
b/drivers/media/dvb-frontends/drxk_hard.c
index 1ab8154..8b4c6d5 100644
--- a/drivers/media/dvb-frontends/drxk_hard.c
+++ b/drivers/media/dvb-frontends/drxk_hard.c
@@ -6609,15 +6609,25 @@ struct dvb_frontend *drxk_attach(const struct 
drxk_config *config,

        /* Load firmware and initialize DRX-K */
        if (state->microcode_name) {
-               status = request_firmware_nowait(THIS_MODULE, 1,
+               if (config->load_firmware_sync) {
+                       const struct firmware *fw = NULL;
+
+                       status = request_firmware(&fw, state->microcode_name,
+                                                 state->i2c->dev.parent);
+                       if (status < 0)
+                               fw = NULL;
+                       load_firmware_cb(fw, state);
+               } else {
+                       status = request_firmware_nowait(THIS_MODULE, 1,
                                              state->microcode_name,
                                              state->i2c->dev.parent,
                                              GFP_KERNEL,
                                              state, load_firmware_cb);
-               if (status < 0) {
-                       printk(KERN_ERR
-                       "drxk: failed to request a firmware\n");
-                       return NULL;
+                       if (status < 0) {
+                               printk(KERN_ERR
+                                      "drxk: failed to request a firmware\n");
+                               return NULL;
+                       }
                }
        } else if (init_drxk(state) < 0)
                goto error;



--
http://palosaari.fi/
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