From 8afff9a23f8506c3439a7a0d7b21e975aed96ab4 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 27 Feb 2014 08:48:44 -0300 Subject: [PATCH] [media] drx-j: be sure to do a full software reset Mimic what windows driver does here: it writes 0x07 to SIO_CC_SOFT_RST__A, instead of just 0x03. Acked-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/drx39xyj/drxj.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/media/dvb-frontends/drx39xyj/drxj.c b/drivers/media/dvb-frontends/drx39xyj/drxj.c index 97a30057ff09..ed68c52f4e96 100644 --- a/drivers/media/dvb-frontends/drx39xyj/drxj.c +++ b/drivers/media/dvb-frontends/drx39xyj/drxj.c @@ -19876,8 +19876,15 @@ int drxj_open(struct drx_demod_instance *demod) goto rw_error; } - /* Soft reset of sys- and osc-clockdomain */ - rc = drxj_dap_write_reg16(dev_addr, SIO_CC_SOFT_RST__A, (SIO_CC_SOFT_RST_SYS__M | SIO_CC_SOFT_RST_OSC__M), 0); + /* + * Soft reset of sys- and osc-clockdomain + * + * HACK: On windows, it writes a 0x07 here, instead of just 0x03. + * As we didn't load the firmware here yet, we should do the same. + * Btw, this is coherent with DRX-K, where we send reset codes + * for modulation (OFTM, in DRX-k), SYS and OSC clock domains. + */ + rc = drxj_dap_write_reg16(dev_addr, SIO_CC_SOFT_RST__A, (0x04 | SIO_CC_SOFT_RST_SYS__M | SIO_CC_SOFT_RST_OSC__M), 0); if (rc != 0) { pr_err("error %d\n", rc); goto rw_error; -- 2.20.1