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authorGianluca Gennari <gennarone@gmail.com>2013-06-17 23:32:45 (GMT)
committerMichael Krufky <mkrufky@linuxtv.org>2013-06-17 23:32:45 (GMT)
commita02dfce109f6dcddf1bfd973f9b3000cd74c3590 (patch)
tree07780ebd7756152b5db315897fd1e7e9a15ee878
parent75931eba5a94461c430a4fb4110cf26222265bda (diff)
r820t: fix imr calibrationr820t
The r820t_imr() calibration function of the Rafael Micro R820T tuner generates this error at every tune attempt: r820t 0-001a: No valid PLL values for 2252021 kHz! The function was inspired by the original Realtek driver for rtl2832 devices with the r820t tuner; anyway, in the original code the XTAL frequency of the tuner was expressed in KHz, while in the kernel driver it is expressed in Hz; so the calibration failed because of an out-of-range initial value. The final result of the computation is then passed to the r820t_set_mux() and r820t_set_pll() functions, but the conversion from KHz to Hz is already correctly implemented. Signed-off-by: Gianluca Gennari <gennarone@gmail.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
-rw-r--r--drivers/media/tuners/r820t.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index 0a5f96b..1c23666 100644
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -1857,9 +1857,9 @@ static int r820t_imr(struct r820t_priv *priv, unsigned imr_mem, bool im_flag)
int reg18, reg19, reg1f;
if (priv->cfg->xtal > 24000000)
- ring_ref = priv->cfg->xtal / 2;
+ ring_ref = priv->cfg->xtal / 2000;
else
- ring_ref = priv->cfg->xtal;
+ ring_ref = priv->cfg->xtal / 1000;
n_ring = 15;
for (n = 0; n < 16; n++) {

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