From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Andrzej Siewior Subject: [PATCH 10/22] mfd/ti_am335x_tscadc: Add DT support Date: Wed, 5 Jun 2013 18:24:43 +0200 Message-ID: <1370449495-29981-11-git-send-email-bigeasy@linutronix.de> References: <1370449495-29981-1-git-send-email-bigeasy@linutronix.de> Return-path: Received: from www.linutronix.de ([62.245.132.108]:35271 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754553Ab3FEQ1W (ORCPT ); Wed, 5 Jun 2013 12:27:22 -0400 In-Reply-To: <1370449495-29981-1-git-send-email-bigeasy@linutronix.de> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Samuel Ortiz Cc: Felipe Balbi , linux-iio@vger.kernel.org, linux-input@vger.kernel.org, Dmitry Torokhov , Jonathan Cameron , "Patil, Rachna" , Pantelis Antoniou , Sebastian Andrzej Siewior From: "Patil, Rachna" Make changes to add DT support in the MFD core driver. [ panto@antoniou-consulting.com : use of_get_child_by_name instead of of_find_node_by_name ] Signed-off-by: Pantelis Antoniou Signed-off-by: Patil, Rachna Signed-off-by: Felipe Balbi [bigeasy: module alias, rename to ti,am3359-tscadc as it was tested on AM3359] Signed-off-by: Sebastian Andrzej Siewior --- drivers/mfd/ti_am335x_tscadc.c | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-) diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 7b091c4..e74e7e0 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -21,6 +21,8 @@ #include #include #include +#include +#include #include #include @@ -79,20 +81,31 @@ 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_get_child_by_name(pdev->dev.of_node, "tsc"); + of_property_read_u32(node, "ti,wires", &tsc_wires); + + node = of_get_child_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) { @@ -264,11 +277,18 @@ 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,am3359-tscadc", }, + { } +}; +MODULE_DEVICE_TABLE(of, ti_tscadc_dt_ids); + static struct platform_driver ti_tscadc_driver = { .driver = { - .name = "ti_tscadc", + .name = "ti_am3359-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, -- 1.7.10.4