From patchwork Thu Jan 24 03:45:09 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Patil, Rachna" X-Patchwork-Id: 2029011 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 3B54BDF264 for ; Thu, 24 Jan 2013 03:49:21 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TyDmO-0006kW-9Y; Thu, 24 Jan 2013 03:47:08 +0000 Received: from bear.ext.ti.com ([192.94.94.41]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TyDkd-0005uI-4o for linux-arm-kernel@lists.infradead.org; Thu, 24 Jan 2013 03:45:23 +0000 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0O3j9bg016877; Wed, 23 Jan 2013 21:45:10 -0600 Received: from DBDE71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0O3j9aA002863; Thu, 24 Jan 2013 09:15:09 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Thu, 24 Jan 2013 09:15:09 +0530 Received: from ucmsshproxy.india.ext.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with SMTP id r0O3j8RU016165; Thu, 24 Jan 2013 09:15:08 +0530 Received: from symphony.india.ext.ti.com (unknown [192.168.247.13]) by ucmsshproxy.india.ext.ti.com (Postfix) with ESMTP id 8CC6B158003; Thu, 24 Jan 2013 09:15:08 +0530 (IST) Received: from ubuntu-psp-linux.india.ext.ti.com (ubuntu-psp-linux [192.168.247.46]) by symphony.india.ext.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r0O3j8R15506; Thu, 24 Jan 2013 09:15:08 +0530 (IST) From: "Patil, Rachna" To: , , , , , , Subject: [PATCH v4 5/8] MFD: ti_am335x_tscadc: Add DT support Date: Thu, 24 Jan 2013 09:15:09 +0530 Message-ID: <1358999112-31192-6-git-send-email-rachna@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1358999112-31192-1-git-send-email-rachna@ti.com> References: <1358999112-31192-1-git-send-email-rachna@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130123_224519_343159_8A97CFC3 X-CRM114-Status: GOOD ( 17.77 ) X-Spam-Score: -4.6 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [192.94.94.41 listed in list.dnswl.org] 3.0 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Russell King , Samuel Ortiz , Tony Lindgren , Dmitry Torokhov , Dmitry Torokhov , Rob Herring , gururaja.hebbar@ti.com, Grant Likely , Jonathan Cameron , Rob Landley , "Patil, Rachna" , Benit Cousson X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: "Patil, Rachna" Make changes to add DT support in the MFD core driver. Signed-off-by: Patil, Rachna --- Changes in v4: Non-standard properties prefixed with vendor name. drivers/mfd/ti_am335x_tscadc.c | 28 +++++++++++++++++++++++----- 1 file changed, 23 insertions(+), 5 deletions(-) diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index e9f3fb5..87b446b 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -22,6 +22,8 @@ #include #include #include +#include +#include #include #include @@ -64,20 +66,31 @@ static int ti_tscadc_probe(struct platform_device *pdev) struct resource *res; struct clk *clk; struct mfd_tscadc_board *pdata = pdev->dev.platform_data; + struct device_node *node = pdev->dev.of_node; struct mfd_cell *cell; int err, ctrl; int clk_value, clock_rate; - int tsc_wires, adc_channels = 0, total_channels; + int tsc_wires = 0, adc_channels = 0, total_channels; - if (!pdata) { + if (!pdata && !pdev->dev.of_node) { dev_err(&pdev->dev, "Could not find platform data\n"); return -EINVAL; } - if (pdata->adc_init) - adc_channels = pdata->adc_init->adc_channels; + if (pdev->dev.platform_data) { + if (pdata->tsc_init) + tsc_wires = pdata->tsc_init->wires; + + if (pdata->adc_init) + adc_channels = pdata->adc_init->adc_channels; + } else { + node = of_find_node_by_name(pdev->dev.of_node, "tsc"); + of_property_read_u32(node, "ti,wires", &tsc_wires); + + node = of_find_node_by_name(pdev->dev.of_node, "adc"); + of_property_read_u32(node, "ti,adc-channels", &adc_channels); + } - tsc_wires = pdata->tsc_init->wires; total_channels = tsc_wires + adc_channels; if (total_channels > 8) { @@ -256,11 +269,16 @@ static const struct dev_pm_ops tscadc_pm_ops = { #define TSCADC_PM_OPS NULL #endif +static const struct of_device_id ti_tscadc_dt_ids[] = { + { .compatible = "ti,ti-tscadc", }, +}; + static struct platform_driver ti_tscadc_driver = { .driver = { .name = "ti_tscadc", .owner = THIS_MODULE, .pm = TSCADC_PM_OPS, + .of_match_table = of_match_ptr(ti_tscadc_dt_ids), }, .probe = ti_tscadc_probe, .remove = ti_tscadc_remove,