From patchwork Thu Jun 25 01:17:37 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joe Perches X-Patchwork-Id: 6671521 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 6C53BC05AC for ; Thu, 25 Jun 2015 01:20:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 480AF20557 for ; Thu, 25 Jun 2015 01:20:35 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0A34720555 for ; Thu, 25 Jun 2015 01:20:34 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Z7vnr-0001Om-DO; Thu, 25 Jun 2015 01:18:07 +0000 Received: from smtprelay0104.hostedemail.com ([216.40.44.104] helo=smtprelay.hostedemail.com) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Z7vnn-0001Mt-0H for linux-arm-kernel@lists.infradead.org; Thu, 25 Jun 2015 01:18:04 +0000 Received: from filter.hostedemail.com (unknown [216.40.38.60]) by smtprelay04.hostedemail.com (Postfix) with ESMTP id D4C9535208F; Thu, 25 Jun 2015 01:17:40 +0000 (UTC) X-Session-Marker: 6A6F6540706572636865732E636F6D X-Spam-Summary: 2, 0, 0, , d41d8cd98f00b204, joe@perches.com, :::::::::::::::::::::, RULES_HIT:1:2:41:69:355:379:541:599:960:968:981:982:988:989:1260:1277:1311:1313:1314:1345:1359:1373:1437:1500:1515:1516:1518:1593:1594:1605:1730:1747:1777:1792:1801:2393:2553:2559:2562:2828:3138:3139:3140:3141:3142:3622:3865:3866:3867:3868:3870:3871:3872:3874:4051:4250:4321:4384:4605:5007:6117:6119:6261:7903:8603:8957:10004:10026:10848:11026:11232:11473:11658:11914:12043:12296:12438:12517:12519:12555:12683:12727:12737:12740:21080, 0, RBL:none, CacheIP:none, Bayesian:0.5, 0.5, 0.5, Netcheck:none, DomainCache:0, MSF:not bulk, SPF:fn, MSBL:0, DNSBL:none, Custom_rules:0:0:0 X-HE-Tag: grass30_875120d34421 X-Filterd-Recvd-Size: 10004 Received: from joe-X200MA.home (pool-173-51-221-2.lsanca.fios.verizon.net [173.51.221.2]) (Authenticated sender: joe@perches.com) by omf02.hostedemail.com (Postfix) with ESMTPA; Thu, 25 Jun 2015 01:17:38 +0000 (UTC) Message-ID: <1435195057.9377.18.camel@perches.com> Subject: Re: [PATCH 02/12] [media] dvb-pll: Add support for THOMSON DTT7546X tuner. From: Joe Perches To: Peter Griffin Date: Wed, 24 Jun 2015 18:17:37 -0700 In-Reply-To: <1435158670-7195-3-git-send-email-peter.griffin@linaro.org> References: <1435158670-7195-1-git-send-email-peter.griffin@linaro.org> <1435158670-7195-3-git-send-email-peter.griffin@linaro.org> X-Mailer: Evolution 3.12.11-0ubuntu3 Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150624_181803_199103_46E45ED7 X-CRM114-Status: GOOD ( 16.98 ) X-Spam-Score: -1.9 (-) Cc: devicetree@vger.kernel.org, mchehab@osg.samsung.com, srinivas.kandagatla@gmail.com, patrice.chotard@st.com, linux-kernel@vger.kernel.org, hugues.fruchet@st.com, linux-media@vger.kernel.org, lee.jones@linaro.org, linux-arm-kernel@lists.infradead.org, maxime.coquelin@st.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On Wed, 2015-06-24 at 16:11 +0100, Peter Griffin wrote: > This is used in conjunction with the STV0367 demodulator on > the STV0367-NIM-V1.0 NIM card which can be used with the STi > STB SoC's. Barely associated to this specific patch, but for dvb-pll.c, another thing that seems possible is to convert the struct dvb_pll_desc uses to const and change the "entries" fixed array size from 12 to [] It'd save a couple KB overall and remove ~5KB of data. $ size drivers/media/dvb-frontends/dvb-pll.o* text data bss dec hex filename 8520 1552 2120 12192 2fa0 drivers/media/dvb-frontends/dvb-pll.o.new 5624 6363 2120 14107 371b drivers/media/dvb-frontends/dvb-pll.o.old Signed-off-by: Joe Perches Reviewed-by: Michael Ira Krufky Reviewed-by: Michael Ira Krufky --- drivers/media/dvb-frontends/dvb-pll.c | 50 +++++++++++++++++------------------ 1 file changed, 25 insertions(+), 25 deletions(-) diff --git a/drivers/media/dvb-frontends/dvb-pll.c b/drivers/media/dvb-frontends/dvb-pll.c index 6d8fe88..53089e1 100644 --- a/drivers/media/dvb-frontends/dvb-pll.c +++ b/drivers/media/dvb-frontends/dvb-pll.c @@ -34,7 +34,7 @@ struct dvb_pll_priv { struct i2c_adapter *i2c; /* the PLL descriptor */ - struct dvb_pll_desc *pll_desc; + const struct dvb_pll_desc *pll_desc; /* cached frequency/bandwidth */ u32 frequency; @@ -57,7 +57,7 @@ MODULE_PARM_DESC(id, "force pll id to use (DEBUG ONLY)"); /* ----------------------------------------------------------- */ struct dvb_pll_desc { - char *name; + const char *name; u32 min; u32 max; u32 iffreq; @@ -71,13 +71,13 @@ struct dvb_pll_desc { u32 stepsize; u8 config; u8 cb; - } entries[12]; + } entries[]; }; /* ----------------------------------------------------------- */ /* descriptions */ -static struct dvb_pll_desc dvb_pll_thomson_dtt7579 = { +static const struct dvb_pll_desc dvb_pll_thomson_dtt7579 = { .name = "Thomson dtt7579", .min = 177000000, .max = 858000000, @@ -99,7 +99,7 @@ static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf) buf[3] |= 0x10; } -static struct dvb_pll_desc dvb_pll_thomson_dtt759x = { +static const struct dvb_pll_desc dvb_pll_thomson_dtt759x = { .name = "Thomson dtt759x", .min = 177000000, .max = 896000000, @@ -123,7 +123,7 @@ static void thomson_dtt7520x_bw(struct dvb_frontend *fe, u8 *buf) buf[3] ^= 0x10; } -static struct dvb_pll_desc dvb_pll_thomson_dtt7520x = { +static const struct dvb_pll_desc dvb_pll_thomson_dtt7520x = { .name = "Thomson dtt7520x", .min = 185000000, .max = 900000000, @@ -141,7 +141,7 @@ static struct dvb_pll_desc dvb_pll_thomson_dtt7520x = { }, }; -static struct dvb_pll_desc dvb_pll_lg_z201 = { +static const struct dvb_pll_desc dvb_pll_lg_z201 = { .name = "LG z201", .min = 174000000, .max = 862000000, @@ -157,7 +157,7 @@ static struct dvb_pll_desc dvb_pll_lg_z201 = { }, }; -static struct dvb_pll_desc dvb_pll_unknown_1 = { +static const struct dvb_pll_desc dvb_pll_unknown_1 = { .name = "unknown 1", /* used by dntv live dvb-t */ .min = 174000000, .max = 862000000, @@ -179,7 +179,7 @@ static struct dvb_pll_desc dvb_pll_unknown_1 = { /* Infineon TUA6010XS * used in Thomson Cable Tuner */ -static struct dvb_pll_desc dvb_pll_tua6010xs = { +static const struct dvb_pll_desc dvb_pll_tua6010xs = { .name = "Infineon TUA6010XS", .min = 44250000, .max = 858000000, @@ -193,7 +193,7 @@ static struct dvb_pll_desc dvb_pll_tua6010xs = { }; /* Panasonic env57h1xd5 (some Philips PLL ?) */ -static struct dvb_pll_desc dvb_pll_env57h1xd5 = { +static const struct dvb_pll_desc dvb_pll_env57h1xd5 = { .name = "Panasonic ENV57H1XD5", .min = 44250000, .max = 858000000, @@ -217,7 +217,7 @@ static void tda665x_bw(struct dvb_frontend *fe, u8 *buf) buf[3] |= 0x08; } -static struct dvb_pll_desc dvb_pll_tda665x = { +static const struct dvb_pll_desc dvb_pll_tda665x = { .name = "Philips TDA6650/TDA6651", .min = 44250000, .max = 858000000, @@ -251,7 +251,7 @@ static void tua6034_bw(struct dvb_frontend *fe, u8 *buf) buf[3] |= 0x08; } -static struct dvb_pll_desc dvb_pll_tua6034 = { +static const struct dvb_pll_desc dvb_pll_tua6034 = { .name = "Infineon TUA6034", .min = 44250000, .max = 858000000, @@ -275,7 +275,7 @@ static void tded4_bw(struct dvb_frontend *fe, u8 *buf) buf[3] |= 0x04; } -static struct dvb_pll_desc dvb_pll_tded4 = { +static const struct dvb_pll_desc dvb_pll_tded4 = { .name = "ALPS TDED4", .min = 47000000, .max = 863000000, @@ -293,7 +293,7 @@ static struct dvb_pll_desc dvb_pll_tded4 = { /* ALPS TDHU2 * used in AverTVHD MCE A180 */ -static struct dvb_pll_desc dvb_pll_tdhu2 = { +static const struct dvb_pll_desc dvb_pll_tdhu2 = { .name = "ALPS TDHU2", .min = 54000000, .max = 864000000, @@ -310,7 +310,7 @@ static struct dvb_pll_desc dvb_pll_tdhu2 = { /* Samsung TBMV30111IN / TBMV30712IN1 * used in Air2PC ATSC - 2nd generation (nxt2002) */ -static struct dvb_pll_desc dvb_pll_samsung_tbmv = { +static const struct dvb_pll_desc dvb_pll_samsung_tbmv = { .name = "Samsung TBMV30111IN / TBMV30712IN1", .min = 54000000, .max = 860000000, @@ -329,7 +329,7 @@ static struct dvb_pll_desc dvb_pll_samsung_tbmv = { /* * Philips SD1878 Tuner. */ -static struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = { +static const struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = { .name = "Philips SD1878", .min = 950000, .max = 2150000, @@ -395,7 +395,7 @@ static void opera1_bw(struct dvb_frontend *fe, u8 *buf) return; } -static struct dvb_pll_desc dvb_pll_opera1 = { +static const struct dvb_pll_desc dvb_pll_opera1 = { .name = "Opera Tuner", .min = 900000, .max = 2250000, @@ -442,7 +442,7 @@ static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf) } /* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */ -static struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = { +static const struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = { .name = "Samsung DTOS403IH102A", .min = 44250000, .max = 858000000, @@ -462,7 +462,7 @@ static struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = { }; /* Samsung TDTC9251DH0 DVB-T NIM, as used on AirStar 2 */ -static struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = { +static const struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = { .name = "Samsung TDTC9251DH0", .min = 48000000, .max = 863000000, @@ -476,7 +476,7 @@ static struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = { }; /* Samsung TBDU18132 DVB-S NIM with TSA5059 PLL, used in SkyStar2 DVB-S 2.3 */ -static struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = { +static const struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = { .name = "Samsung TBDU18132", .min = 950000, .max = 2150000, /* guesses */ @@ -497,7 +497,7 @@ static struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = { }; /* Samsung TBMU24112 DVB-S NIM with SL1935 zero-IF tuner */ -static struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = { +static const struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = { .name = "Samsung TBMU24112", .min = 950000, .max = 2150000, /* guesses */ @@ -518,7 +518,7 @@ static struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = { * 153 - 430 0 * 0 0 0 0 1 0 0x02 * 430 - 822 0 * 0 0 1 0 0 0 0x08 * 822 - 862 1 * 0 0 1 0 0 0 0x88 */ -static struct dvb_pll_desc dvb_pll_alps_tdee4 = { +static const struct dvb_pll_desc dvb_pll_alps_tdee4 = { .name = "ALPS TDEE4", .min = 47000000, .max = 862000000, @@ -534,7 +534,7 @@ static struct dvb_pll_desc dvb_pll_alps_tdee4 = { /* ----------------------------------------------------------- */ -static struct dvb_pll_desc *pll_list[] = { +static const struct dvb_pll_desc *pll_list[] = { [DVB_PLL_UNDEFINED] = NULL, [DVB_PLL_THOMSON_DTT7579] = &dvb_pll_thomson_dtt7579, [DVB_PLL_THOMSON_DTT759X] = &dvb_pll_thomson_dtt759x, @@ -564,7 +564,7 @@ static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf, const u32 frequency) { struct dvb_pll_priv *priv = fe->tuner_priv; - struct dvb_pll_desc *desc = priv->pll_desc; + const struct dvb_pll_desc *desc = priv->pll_desc; u32 div; int i; @@ -758,7 +758,7 @@ struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr, .buf = b1, .len = 1 }; struct dvb_pll_priv *priv = NULL; int ret; - struct dvb_pll_desc *desc; + const struct dvb_pll_desc *desc; if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) && (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list)))