Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752241AbbFYLLF (ORCPT ); Thu, 25 Jun 2015 07:11:05 -0400 Received: from mail-pd0-f182.google.com ([209.85.192.182]:35312 "EHLO mail-pd0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751408AbbFYLKz (ORCPT ); Thu, 25 Jun 2015 07:10:55 -0400 Message-ID: <558BE1B7.2060308@linaro.org> Date: Thu, 25 Jun 2015 16:40:47 +0530 From: Vaibhav Hiremath User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Lee Jones CC: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, yizhang@marvell.com, Chao Xie Subject: Re: [PATCH-v4 1/3] mfd: 88pm800: Add device tree support References: <1435217189-19578-1-git-send-email-vaibhav.hiremath@linaro.org> <1435217189-19578-2-git-send-email-vaibhav.hiremath@linaro.org> <20150625101916.GB15013@x1> In-Reply-To: <20150625101916.GB15013@x1> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2982 Lines: 93 On Thursday 25 June 2015 03:49 PM, Lee Jones wrote: > On Thu, 25 Jun 2015, Vaibhav Hiremath wrote: > >> Add DT support to the 88pm800 driver, along with compatible >> field for it's sub-devices (rtc, onkey and regulator) >> >> Signed-off-by: Chao Xie >> Signed-off-by: Vaibhav Hiremath >> --- >> drivers/mfd/88pm800.c | 23 +++++++++++++++++++++++ >> 1 file changed, 23 insertions(+) >> >> diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c >> index 841717a..40fd014 100644 >> --- a/drivers/mfd/88pm800.c >> +++ b/drivers/mfd/88pm800.c >> @@ -27,6 +27,7 @@ >> #include >> #include >> #include >> +#include >> >> /* Interrupt Registers */ >> #define PM800_INT_STATUS1 (0x05) >> @@ -121,6 +122,11 @@ static const struct i2c_device_id pm80x_id_table[] = { >> }; >> MODULE_DEVICE_TABLE(i2c, pm80x_id_table); >> >> +static const struct of_device_id pm80x_of_match_table[] = { >> + { .compatible = "marvell,88pm800", }, >> + {}, >> +}; >> + >> static struct resource rtc_resources[] = { >> { >> .name = "88pm80x-rtc", >> @@ -133,6 +139,7 @@ static struct resource rtc_resources[] = { >> static struct mfd_cell rtc_devs[] = { >> { >> .name = "88pm80x-rtc", >> + .of_compatible = "marvell,88pm80x-rtc", >> .num_resources = ARRAY_SIZE(rtc_resources), >> .resources = &rtc_resources[0], >> .id = -1, >> @@ -151,6 +158,7 @@ static struct resource onkey_resources[] = { >> static const struct mfd_cell onkey_devs[] = { >> { >> .name = "88pm80x-onkey", >> + .of_compatible = "marvell,88pm80x-onkey", >> .num_resources = 1, >> .resources = &onkey_resources[0], >> .id = -1, >> @@ -160,6 +168,7 @@ static const struct mfd_cell onkey_devs[] = { >> static const struct mfd_cell regulator_devs[] = { >> { >> .name = "88pm80x-regulator", >> + .of_compatible = "marvell,88pm80x-regulator", >> .id = -1, >> }, >> }; >> @@ -544,8 +553,21 @@ static int pm800_probe(struct i2c_client *client, >> int ret = 0; >> struct pm80x_chip *chip; >> struct pm80x_platform_data *pdata = dev_get_platdata(&client->dev); >> + struct device_node *np = client->dev.of_node; >> struct pm80x_subchip *subchip; >> >> + if (!pdata && !np) { >> + dev_err(&client->dev, >> + "pm80x requires platform data or of_node\n"); >> + return -EINVAL; >> + } >> + >> + if (!pdata) { >> + pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); >> + if (!pdata) >> + return -ENOMEM; >> + } > > Why have you allocated data for pdata, then done nothing with it? > Not in this patch, but subsequent patches would use it. Thanks, Vaibhav -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/