From patchwork Sat Feb 8 09:38:01 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antti Palosaari X-Patchwork-Id: 3609901 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 359709F344 for ; Sat, 8 Feb 2014 09:39:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6C25D20163 for ; Sat, 8 Feb 2014 09:39:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 80D7C20138 for ; Sat, 8 Feb 2014 09:39:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751557AbaBHJi6 (ORCPT ); Sat, 8 Feb 2014 04:38:58 -0500 Received: from mail.kapsi.fi ([217.30.184.167]:41095 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751514AbaBHJiv (ORCPT ); Sat, 8 Feb 2014 04:38:51 -0500 Received: from [82.128.187.60] (helo=localhost.localdomain) by mail.kapsi.fi with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1WC4N8-0003IC-9V; Sat, 08 Feb 2014 11:38:50 +0200 From: Antti Palosaari To: linux-media@vger.kernel.org Cc: Mauro Carvalho Chehab , Hans Verkuil , Antti Palosaari Subject: [PATCH 8/8] e4000: convert to Regmap API Date: Sat, 8 Feb 2014 11:38:01 +0200 Message-Id: <1391852281-18291-9-git-send-email-crope@iki.fi> X-Mailer: git-send-email 1.8.5.3 In-Reply-To: <1391852281-18291-1-git-send-email-crope@iki.fi> References: <1391852281-18291-1-git-send-email-crope@iki.fi> X-SA-Exim-Connect-IP: 82.128.187.60 X-SA-Exim-Mail-From: crope@iki.fi X-SA-Exim-Scanned: No (on mail.kapsi.fi); SAEximRunCond expanded to false Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham 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 That comes possible after driver was converted to kernel I2C model (I2C binding & proper I2C client with no gate control hack). All nasty low level I2C routines are now covered by regmap. Also some variable renaming and minor functionality changes. Cc: Mauro Carvalho Chehab Cc: Hans Verkuil Signed-off-by: Antti Palosaari --- drivers/media/tuners/Kconfig | 1 + drivers/media/tuners/e4000.c | 442 ++++++++++++++++---------------------- drivers/media/tuners/e4000_priv.h | 4 +- 3 files changed, 184 insertions(+), 263 deletions(-) diff --git a/drivers/media/tuners/Kconfig b/drivers/media/tuners/Kconfig index ba2e365..a128488 100644 --- a/drivers/media/tuners/Kconfig +++ b/drivers/media/tuners/Kconfig @@ -204,6 +204,7 @@ config MEDIA_TUNER_TDA18212 config MEDIA_TUNER_E4000 tristate "Elonics E4000 silicon tuner" depends on MEDIA_SUPPORT && I2C + select REGMAP_I2C default m if !MEDIA_SUBDRV_AUTOSELECT help Elonics E4000 silicon tuner driver. diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c index e3e3b7e..0d516ad 100644 --- a/drivers/media/tuners/e4000.c +++ b/drivers/media/tuners/e4000.c @@ -21,203 +21,112 @@ #include "e4000_priv.h" #include -/* Max transfer size done by I2C transfer functions */ -#define MAX_XFER_SIZE 64 - -/* write multiple registers */ -static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) -{ - int ret; - u8 buf[MAX_XFER_SIZE]; - struct i2c_msg msg[1] = { - { - .addr = priv->client->addr, - .flags = 0, - .len = 1 + len, - .buf = buf, - } - }; - - if (1 + len > sizeof(buf)) { - dev_warn(&priv->client->dev, - "%s: i2c wr reg=%04x: len=%d is too big!\n", - KBUILD_MODNAME, reg, len); - return -EINVAL; - } - - buf[0] = reg; - memcpy(&buf[1], val, len); - - ret = i2c_transfer(priv->client->adapter, msg, 1); - if (ret == 1) { - ret = 0; - } else { - dev_warn(&priv->client->dev, - "%s: i2c wr failed=%d reg=%02x len=%d\n", - KBUILD_MODNAME, ret, reg, len); - ret = -EREMOTEIO; - } - return ret; -} - -/* read multiple registers */ -static int e4000_rd_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) -{ - int ret; - u8 buf[MAX_XFER_SIZE]; - struct i2c_msg msg[2] = { - { - .addr = priv->client->addr, - .flags = 0, - .len = 1, - .buf = ®, - }, { - .addr = priv->client->addr, - .flags = I2C_M_RD, - .len = len, - .buf = buf, - } - }; - - if (len > sizeof(buf)) { - dev_warn(&priv->client->dev, - "%s: i2c rd reg=%04x: len=%d is too big!\n", - KBUILD_MODNAME, reg, len); - return -EINVAL; - } - - ret = i2c_transfer(priv->client->adapter, msg, 2); - if (ret == 2) { - memcpy(val, buf, len); - ret = 0; - } else { - dev_warn(&priv->client->dev, - "%s: i2c rd failed=%d reg=%02x len=%d\n", - KBUILD_MODNAME, ret, reg, len); - ret = -EREMOTEIO; - } - - return ret; -} - -/* write single register */ -static int e4000_wr_reg(struct e4000_priv *priv, u8 reg, u8 val) -{ - return e4000_wr_regs(priv, reg, &val, 1); -} - -/* read single register */ -static int e4000_rd_reg(struct e4000_priv *priv, u8 reg, u8 *val) -{ - return e4000_rd_regs(priv, reg, val, 1); -} - static int e4000_init(struct dvb_frontend *fe) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000 *s = fe->tuner_priv; int ret; - dev_dbg(&priv->client->dev, "%s:\n", __func__); + dev_dbg(&s->client->dev, "%s:\n", __func__); /* dummy I2C to ensure I2C wakes up */ - ret = e4000_wr_reg(priv, 0x02, 0x40); + ret = regmap_write(s->regmap, 0x02, 0x40); /* reset */ - ret = e4000_wr_reg(priv, 0x00, 0x01); - if (ret < 0) + ret = regmap_write(s->regmap, 0x00, 0x01); + if (ret) goto err; /* disable output clock */ - ret = e4000_wr_reg(priv, 0x06, 0x00); - if (ret < 0) + ret = regmap_write(s->regmap, 0x06, 0x00); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x7a, 0x96); - if (ret < 0) + ret = regmap_write(s->regmap, 0x7a, 0x96); + if (ret) goto err; /* configure gains */ - ret = e4000_wr_regs(priv, 0x7e, "\x01\xfe", 2); - if (ret < 0) + ret = regmap_bulk_write(s->regmap, 0x7e, "\x01\xfe", 2); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x82, 0x00); - if (ret < 0) + ret = regmap_write(s->regmap, 0x82, 0x00); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x24, 0x05); - if (ret < 0) + ret = regmap_write(s->regmap, 0x24, 0x05); + if (ret) goto err; - ret = e4000_wr_regs(priv, 0x87, "\x20\x01", 2); - if (ret < 0) + ret = regmap_bulk_write(s->regmap, 0x87, "\x20\x01", 2); + if (ret) goto err; - ret = e4000_wr_regs(priv, 0x9f, "\x7f\x07", 2); - if (ret < 0) + ret = regmap_bulk_write(s->regmap, 0x9f, "\x7f\x07", 2); + if (ret) goto err; /* DC offset control */ - ret = e4000_wr_reg(priv, 0x2d, 0x1f); - if (ret < 0) + ret = regmap_write(s->regmap, 0x2d, 0x1f); + if (ret) goto err; - ret = e4000_wr_regs(priv, 0x70, "\x01\x01", 2); - if (ret < 0) + ret = regmap_bulk_write(s->regmap, 0x70, "\x01\x01", 2); + if (ret) goto err; /* gain control */ - ret = e4000_wr_reg(priv, 0x1a, 0x17); - if (ret < 0) + ret = regmap_write(s->regmap, 0x1a, 0x17); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x1f, 0x1a); - if (ret < 0) + ret = regmap_write(s->regmap, 0x1f, 0x1a); + if (ret) goto err; - priv->active = true; + s->active = true; err: if (ret) - dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret); + dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret); return ret; } static int e4000_sleep(struct dvb_frontend *fe) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000 *s = fe->tuner_priv; int ret; - dev_dbg(&priv->client->dev, "%s:\n", __func__); + dev_dbg(&s->client->dev, "%s:\n", __func__); - priv->active = false; + s->active = false; - ret = e4000_wr_reg(priv, 0x00, 0x00); - if (ret < 0) + ret = regmap_write(s->regmap, 0x00, 0x00); + if (ret) goto err; err: if (ret) - dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret); + dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret); return ret; } static int e4000_set_params(struct dvb_frontend *fe) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000 *s = fe->tuner_priv; struct dtv_frontend_properties *c = &fe->dtv_property_cache; int ret, i, sigma_delta; u64 f_vco; u8 buf[5], i_data[4], q_data[4]; - dev_dbg(&priv->client->dev, + dev_dbg(&s->client->dev, "%s: delivery_system=%d frequency=%u bandwidth_hz=%u\n", __func__, c->delivery_system, c->frequency, c->bandwidth_hz); /* gain control manual */ - ret = e4000_wr_reg(priv, 0x1a, 0x00); - if (ret < 0) + ret = regmap_write(s->regmap, 0x1a, 0x00); + if (ret) goto err; /* PLL */ @@ -232,19 +141,19 @@ static int e4000_set_params(struct dvb_frontend *fe) } f_vco = 1ull * c->frequency * e4000_pll_lut[i].mul; - sigma_delta = div_u64(0x10000ULL * (f_vco % priv->clock), priv->clock); - buf[0] = div_u64(f_vco, priv->clock); + sigma_delta = div_u64(0x10000ULL * (f_vco % s->clock), s->clock); + buf[0] = div_u64(f_vco, s->clock); buf[1] = (sigma_delta >> 0) & 0xff; buf[2] = (sigma_delta >> 8) & 0xff; buf[3] = 0x00; buf[4] = e4000_pll_lut[i].div; - dev_dbg(&priv->client->dev, + dev_dbg(&s->client->dev, "%s: f_vco=%llu pll div=%d sigma_delta=%04x\n", __func__, f_vco, buf[0], sigma_delta); - ret = e4000_wr_regs(priv, 0x09, buf, 5); - if (ret < 0) + ret = regmap_bulk_write(s->regmap, 0x09, buf, 5); + if (ret) goto err; /* LNA filter (RF filter) */ @@ -258,8 +167,8 @@ static int e4000_set_params(struct dvb_frontend *fe) goto err; } - ret = e4000_wr_reg(priv, 0x10, e400_lna_filter_lut[i].val); - if (ret < 0) + ret = regmap_write(s->regmap, 0x10, e400_lna_filter_lut[i].val); + if (ret) goto err; /* IF filters */ @@ -276,8 +185,8 @@ static int e4000_set_params(struct dvb_frontend *fe) buf[0] = e4000_if_filter_lut[i].reg11_val; buf[1] = e4000_if_filter_lut[i].reg12_val; - ret = e4000_wr_regs(priv, 0x11, buf, 2); - if (ret < 0) + ret = regmap_bulk_write(s->regmap, 0x11, buf, 2); + if (ret) goto err; /* frequency band */ @@ -291,34 +200,34 @@ static int e4000_set_params(struct dvb_frontend *fe) goto err; } - ret = e4000_wr_reg(priv, 0x07, e4000_band_lut[i].reg07_val); - if (ret < 0) + ret = regmap_write(s->regmap, 0x07, e4000_band_lut[i].reg07_val); + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x78, e4000_band_lut[i].reg78_val); - if (ret < 0) + ret = regmap_write(s->regmap, 0x78, e4000_band_lut[i].reg78_val); + if (ret) goto err; /* DC offset */ for (i = 0; i < 4; i++) { if (i == 0) - ret = e4000_wr_regs(priv, 0x15, "\x00\x7e\x24", 3); + ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7e\x24", 3); else if (i == 1) - ret = e4000_wr_regs(priv, 0x15, "\x00\x7f", 2); + ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7f", 2); else if (i == 2) - ret = e4000_wr_regs(priv, 0x15, "\x01", 1); + ret = regmap_bulk_write(s->regmap, 0x15, "\x01", 1); else - ret = e4000_wr_regs(priv, 0x16, "\x7e", 1); + ret = regmap_bulk_write(s->regmap, 0x16, "\x7e", 1); - if (ret < 0) + if (ret) goto err; - ret = e4000_wr_reg(priv, 0x29, 0x01); - if (ret < 0) + ret = regmap_write(s->regmap, 0x29, 0x01); + if (ret) goto err; - ret = e4000_rd_regs(priv, 0x2a, buf, 3); - if (ret < 0) + ret = regmap_bulk_read(s->regmap, 0x2a, buf, 3); + if (ret) goto err; i_data[i] = (((buf[2] >> 0) & 0x3) << 6) | (buf[0] & 0x3f); @@ -328,30 +237,30 @@ static int e4000_set_params(struct dvb_frontend *fe) swap(q_data[2], q_data[3]); swap(i_data[2], i_data[3]); - ret = e4000_wr_regs(priv, 0x50, q_data, 4); - if (ret < 0) + ret = regmap_bulk_write(s->regmap, 0x50, q_data, 4); + if (ret) goto err; - ret = e4000_wr_regs(priv, 0x60, i_data, 4); - if (ret < 0) + ret = regmap_bulk_write(s->regmap, 0x60, i_data, 4); + if (ret) goto err; /* gain control auto */ - ret = e4000_wr_reg(priv, 0x1a, 0x17); - if (ret < 0) + ret = regmap_write(s->regmap, 0x1a, 0x17); + if (ret) goto err; err: if (ret) - dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret); + dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret); return ret; } static int e4000_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000 *s = fe->tuner_priv; - dev_dbg(&priv->client->dev, "%s:\n", __func__); + dev_dbg(&s->client->dev, "%s:\n", __func__); *frequency = 0; /* Zero-IF */ @@ -360,143 +269,144 @@ static int e4000_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) static int e4000_set_lna_gain(struct dvb_frontend *fe) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000 *s = fe->tuner_priv; int ret; u8 u8tmp; - dev_dbg(&priv->client->dev, "%s: lna auto=%d->%d val=%d->%d\n", - __func__, priv->lna_gain_auto->cur.val, - priv->lna_gain_auto->val, priv->lna_gain->cur.val, - priv->lna_gain->val); + dev_dbg(&s->client->dev, "%s: lna auto=%d->%d val=%d->%d\n", + __func__, s->lna_gain_auto->cur.val, + s->lna_gain_auto->val, s->lna_gain->cur.val, + s->lna_gain->val); - if (priv->lna_gain_auto->val && priv->if_gain_auto->cur.val) + if (s->lna_gain_auto->val && s->if_gain_auto->cur.val) u8tmp = 0x17; - else if (priv->lna_gain_auto->val) + else if (s->lna_gain_auto->val) u8tmp = 0x19; - else if (priv->if_gain_auto->cur.val) + else if (s->if_gain_auto->cur.val) u8tmp = 0x16; else u8tmp = 0x10; - ret = e4000_wr_reg(priv, 0x1a, u8tmp); + ret = regmap_write(s->regmap, 0x1a, u8tmp); if (ret) goto err; - if (priv->lna_gain_auto->val == false) { - ret = e4000_wr_reg(priv, 0x14, priv->lna_gain->val); + if (s->lna_gain_auto->val == false) { + ret = regmap_write(s->regmap, 0x14, s->lna_gain->val); if (ret) goto err; } err: if (ret) - dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret); + dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret); return ret; } static int e4000_set_mixer_gain(struct dvb_frontend *fe) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000 *s = fe->tuner_priv; int ret; u8 u8tmp; - dev_dbg(&priv->client->dev, "%s: mixer auto=%d->%d val=%d->%d\n", - __func__, priv->mixer_gain_auto->cur.val, - priv->mixer_gain_auto->val, priv->mixer_gain->cur.val, - priv->mixer_gain->val); + dev_dbg(&s->client->dev, "%s: mixer auto=%d->%d val=%d->%d\n", + __func__, s->mixer_gain_auto->cur.val, + s->mixer_gain_auto->val, s->mixer_gain->cur.val, + s->mixer_gain->val); - if (priv->mixer_gain_auto->val) + if (s->mixer_gain_auto->val) u8tmp = 0x15; else u8tmp = 0x14; - ret = e4000_wr_reg(priv, 0x20, u8tmp); + ret = regmap_write(s->regmap, 0x20, u8tmp); if (ret) goto err; - if (priv->mixer_gain_auto->val == false) { - ret = e4000_wr_reg(priv, 0x15, priv->mixer_gain->val); + if (s->mixer_gain_auto->val == false) { + ret = regmap_write(s->regmap, 0x15, s->mixer_gain->val); if (ret) goto err; } err: if (ret) - dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret); + dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret); return ret; } static int e4000_set_if_gain(struct dvb_frontend *fe) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000 *s = fe->tuner_priv; int ret; u8 buf[2]; u8 u8tmp; - dev_dbg(&priv->client->dev, "%s: if auto=%d->%d val=%d->%d\n", - __func__, priv->if_gain_auto->cur.val, - priv->if_gain_auto->val, priv->if_gain->cur.val, - priv->if_gain->val); + dev_dbg(&s->client->dev, "%s: if auto=%d->%d val=%d->%d\n", + __func__, s->if_gain_auto->cur.val, + s->if_gain_auto->val, s->if_gain->cur.val, + s->if_gain->val); - if (priv->if_gain_auto->val && priv->lna_gain_auto->cur.val) + if (s->if_gain_auto->val && s->lna_gain_auto->cur.val) u8tmp = 0x17; - else if (priv->lna_gain_auto->cur.val) + else if (s->lna_gain_auto->cur.val) u8tmp = 0x19; - else if (priv->if_gain_auto->val) + else if (s->if_gain_auto->val) u8tmp = 0x16; else u8tmp = 0x10; - ret = e4000_wr_reg(priv, 0x1a, u8tmp); + ret = regmap_write(s->regmap, 0x1a, u8tmp); if (ret) goto err; - if (priv->if_gain_auto->val == false) { - buf[0] = e4000_if_gain_lut[priv->if_gain->val].reg16_val; - buf[1] = e4000_if_gain_lut[priv->if_gain->val].reg17_val; - ret = e4000_wr_regs(priv, 0x16, buf, 2); + if (s->if_gain_auto->val == false) { + buf[0] = e4000_if_gain_lut[s->if_gain->val].reg16_val; + buf[1] = e4000_if_gain_lut[s->if_gain->val].reg17_val; + ret = regmap_bulk_write(s->regmap, 0x16, buf, 2); if (ret) goto err; } err: if (ret) - dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret); + dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret); return ret; } static int e4000_pll_lock(struct dvb_frontend *fe) { - struct e4000_priv *priv = fe->tuner_priv; + struct e4000 *s = fe->tuner_priv; int ret; - u8 u8tmp; - - if (priv->active == false) - return 0; + unsigned int utmp; - ret = e4000_rd_reg(priv, 0x07, &u8tmp); + ret = regmap_read(s->regmap, 0x07, &utmp); if (ret) goto err; - priv->pll_lock->val = (u8tmp & 0x01); + s->pll_lock->val = (utmp & 0x01); err: if (ret) - dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret); + dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret); return ret; } static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { - struct e4000_priv *priv = - container_of(ctrl->handler, struct e4000_priv, hdl); + struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl); int ret; + if (s->active == false) + return 0; + switch (ctrl->id) { case V4L2_CID_PLL_LOCK: - ret = e4000_pll_lock(priv->fe); + ret = e4000_pll_lock(s->fe); break; default: + dev_dbg(&s->client->dev, "%s: unknown ctrl: id=%d name=%s\n", + __func__, ctrl->id, ctrl->name); ret = -EINVAL; } @@ -505,36 +415,35 @@ static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl) static int e4000_s_ctrl(struct v4l2_ctrl *ctrl) { - struct e4000_priv *priv = - container_of(ctrl->handler, struct e4000_priv, hdl); - struct dvb_frontend *fe = priv->fe; + struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl); + struct dvb_frontend *fe = s->fe; struct dtv_frontend_properties *c = &fe->dtv_property_cache; int ret; - dev_dbg(&priv->client->dev, - "%s: id=%d name=%s val=%d min=%d max=%d step=%d\n", - __func__, ctrl->id, ctrl->name, ctrl->val, - ctrl->minimum, ctrl->maximum, ctrl->step); + if (s->active == false) + return 0; switch (ctrl->id) { case V4L2_CID_BANDWIDTH_AUTO: case V4L2_CID_BANDWIDTH: - c->bandwidth_hz = priv->bandwidth->val; - ret = e4000_set_params(priv->fe); + c->bandwidth_hz = s->bandwidth->val; + ret = e4000_set_params(s->fe); break; case V4L2_CID_LNA_GAIN_AUTO: case V4L2_CID_LNA_GAIN: - ret = e4000_set_lna_gain(priv->fe); + ret = e4000_set_lna_gain(s->fe); break; case V4L2_CID_MIXER_GAIN_AUTO: case V4L2_CID_MIXER_GAIN: - ret = e4000_set_mixer_gain(priv->fe); + ret = e4000_set_mixer_gain(s->fe); break; case V4L2_CID_IF_GAIN_AUTO: case V4L2_CID_IF_GAIN: - ret = e4000_set_if_gain(priv->fe); + ret = e4000_set_if_gain(s->fe); break; default: + dev_dbg(&s->client->dev, "%s: unknown ctrl: id=%d name=%s\n", + __func__, ctrl->id, ctrl->name); ret = -EINVAL; } @@ -562,8 +471,8 @@ static const struct dvb_tuner_ops e4000_tuner_ops = { struct v4l2_ctrl_handler *e4000_get_ctrl_handler(struct dvb_frontend *fe) { - struct e4000_priv *priv = fe->tuner_priv; - return &priv->hdl; + struct e4000 *s = fe->tuner_priv; + return &s->hdl; } EXPORT_SYMBOL(e4000_get_ctrl_handler); @@ -572,82 +481,91 @@ static int e4000_probe(struct i2c_client *client, { struct e4000_config *cfg = client->dev.platform_data; struct dvb_frontend *fe = cfg->fe; - struct e4000_priv *priv; + struct e4000 *s; int ret; - u8 chip_id; + unsigned int utmp; + static const struct regmap_config regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }; - priv = kzalloc(sizeof(struct e4000_priv), GFP_KERNEL); - if (!priv) { + s = kzalloc(sizeof(struct e4000), GFP_KERNEL); + if (!s) { ret = -ENOMEM; dev_err(&client->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME); goto err; } - priv->clock = cfg->clock; - priv->client = client; - priv->fe = cfg->fe; + s->clock = cfg->clock; + s->client = client; + s->fe = cfg->fe; + s->regmap = devm_regmap_init_i2c(client, ®map_config); + if (IS_ERR(s->regmap)) { + ret = PTR_ERR(s->regmap); + goto err; + } /* check if the tuner is there */ - ret = e4000_rd_reg(priv, 0x02, &chip_id); - if (ret < 0) + ret = regmap_read(s->regmap, 0x02, &utmp); + if (ret) goto err; - dev_dbg(&priv->client->dev, - "%s: chip_id=%02x\n", __func__, chip_id); + dev_dbg(&s->client->dev, "%s: chip id=%02x\n", __func__, utmp); - if (chip_id != 0x40) { + if (utmp != 0x40) { ret = -ENODEV; goto err; } /* put sleep as chip seems to be in normal mode by default */ - ret = e4000_wr_reg(priv, 0x00, 0x00); - if (ret < 0) + ret = regmap_write(s->regmap, 0x00, 0x00); + if (ret) goto err; /* Register controls */ - v4l2_ctrl_handler_init(&priv->hdl, 9); - priv->bandwidth_auto = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + v4l2_ctrl_handler_init(&s->hdl, 9); + s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_BANDWIDTH_AUTO, 0, 1, 1, 1); - priv->bandwidth = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + s->bandwidth = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_BANDWIDTH, 4300000, 11000000, 100000, 4300000); - v4l2_ctrl_auto_cluster(2, &priv->bandwidth_auto, 0, false); - priv->lna_gain_auto = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false); + s->lna_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_LNA_GAIN_AUTO, 0, 1, 1, 1); - priv->lna_gain = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_LNA_GAIN, 0, 15, 1, 10); - v4l2_ctrl_auto_cluster(2, &priv->lna_gain_auto, 0, false); - priv->mixer_gain_auto = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + v4l2_ctrl_auto_cluster(2, &s->lna_gain_auto, 0, false); + s->mixer_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_MIXER_GAIN_AUTO, 0, 1, 1, 1); - priv->mixer_gain = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_MIXER_GAIN, 0, 1, 1, 1); - v4l2_ctrl_auto_cluster(2, &priv->mixer_gain_auto, 0, false); - priv->if_gain_auto = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + v4l2_ctrl_auto_cluster(2, &s->mixer_gain_auto, 0, false); + s->if_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_IF_GAIN_AUTO, 0, 1, 1, 1); - priv->if_gain = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + s->if_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_IF_GAIN, 0, 54, 1, 0); - v4l2_ctrl_auto_cluster(2, &priv->if_gain_auto, 0, false); - priv->pll_lock = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops, + v4l2_ctrl_auto_cluster(2, &s->if_gain_auto, 0, false); + s->pll_lock = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops, V4L2_CID_PLL_LOCK, 0, 1, 1, 0); - if (priv->hdl.error) { - ret = priv->hdl.error; - dev_err(&priv->client->dev, "Could not initialize controls\n"); - v4l2_ctrl_handler_free(&priv->hdl); + if (s->hdl.error) { + ret = s->hdl.error; + dev_err(&s->client->dev, "Could not initialize controls\n"); + v4l2_ctrl_handler_free(&s->hdl); goto err; } - dev_info(&priv->client->dev, + dev_info(&s->client->dev, "%s: Elonics E4000 successfully identified\n", KBUILD_MODNAME); - fe->tuner_priv = priv; + fe->tuner_priv = s; memcpy(&fe->ops.tuner_ops, &e4000_tuner_ops, sizeof(struct dvb_tuner_ops)); - i2c_set_clientdata(client, priv); + i2c_set_clientdata(client, s); err: if (ret) { dev_dbg(&client->dev, "%s: failed=%d\n", __func__, ret); - kfree(priv); + kfree(s); } return ret; @@ -655,15 +573,15 @@ err: static int e4000_remove(struct i2c_client *client) { - struct e4000_priv *priv = i2c_get_clientdata(client); - struct dvb_frontend *fe = priv->fe; + struct e4000 *s = i2c_get_clientdata(client); + struct dvb_frontend *fe = s->fe; dev_dbg(&client->dev, "%s:\n", __func__); - v4l2_ctrl_handler_free(&priv->hdl); + v4l2_ctrl_handler_free(&s->hdl); memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops)); fe->tuner_priv = NULL; - kfree(priv); + kfree(s); return 0; } diff --git a/drivers/media/tuners/e4000_priv.h b/drivers/media/tuners/e4000_priv.h index d41dbcc..ee36de1 100644 --- a/drivers/media/tuners/e4000_priv.h +++ b/drivers/media/tuners/e4000_priv.h @@ -23,9 +23,11 @@ #include "e4000.h" #include +#include -struct e4000_priv { +struct e4000 { struct i2c_client *client; + struct regmap *regmap; u32 clock; struct dvb_frontend *fe; bool active;