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Tue, 9 Jan 2018 00:24:22 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1261.35 via Frontend Transport; Tue, 9 Jan 2018 00:24:22 -0600 Received: from ula0393675.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id w096NYbt016327; Tue, 9 Jan 2018 00:24:18 -0600 From: Keerthy To: , , , Subject: [PATCH v7 8/9] pwm: pwm-omap-dmtimer: Adapt driver to utilize dmtimer pdata ops Date: Tue, 9 Jan 2018 11:53:06 +0530 Message-ID: <1515478987-5786-9-git-send-email-j-keerthy@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1515478987-5786-1-git-send-email-j-keerthy@ti.com> References: <1515478987-5786-1-git-send-email-j-keerthy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180108_222454_498890_2A7DE6A4 X-CRM114-Status: GOOD ( 11.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-pwm@vger.kernel.org, ladis@linux-mips.org, narmstrong@baylibre.com, j-keerthy@ti.com, linux-kernel@vger.kernel.org, t-kristo@ti.com, robh+dt@kernel.org, sebastian.reichel@collabora.co.uk, grygorii.strashko@ti.com, linux-omap@vger.kernel.org, Claudiu.Beznea@microchip.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Adapt driver to utilize dmtimer pdata ops instead of pdata-quirks. Signed-off-by: Keerthy Acked-by: Neil Armstrong Reviewed-by: Claudiu Beznea --- drivers/pwm/pwm-omap-dmtimer.c | 68 ++++++++++++++++++++++++++---------------- 1 file changed, 43 insertions(+), 25 deletions(-) diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c index 5ad42f3..cc485d9 100644 --- a/drivers/pwm/pwm-omap-dmtimer.c +++ b/drivers/pwm/pwm-omap-dmtimer.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -37,7 +38,7 @@ struct pwm_omap_dmtimer_chip { struct pwm_chip chip; struct mutex mutex; pwm_omap_dmtimer *dm_timer; - struct pwm_omap_dmtimer_pdata *pdata; + struct omap_dm_timer_ops *pdata; struct platform_device *dm_timer_pdev; }; @@ -242,19 +243,35 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct device_node *timer; + struct platform_device *timer_pdev; struct pwm_omap_dmtimer_chip *omap; - struct pwm_omap_dmtimer_pdata *pdata; + struct dmtimer_platform_data *timer_pdata; + struct omap_dm_timer_ops *pdata; pwm_omap_dmtimer *dm_timer; u32 v; - int status; + int status, ret; - pdata = dev_get_platdata(&pdev->dev); - if (!pdata) { - dev_err(&pdev->dev, "Missing dmtimer platform data\n"); - return -EINVAL; + timer = of_parse_phandle(np, "ti,timers", 0); + if (!timer) + return -ENODEV; + + timer_pdev = of_find_device_by_node(timer); + if (!timer_pdev) { + dev_err(&pdev->dev, "Unable to find Timer pdev\n"); + ret = -ENODEV; + goto put; } - if (!pdata->request_by_node || + timer_pdata = dev_get_platdata(&timer_pdev->dev); + if (!timer_pdata) { + dev_err(&pdev->dev, "dmtimer pdata structure NULL\n"); + ret = -EINVAL; + goto put; + } + + pdata = timer_pdata->timer_ops; + + if (!pdata || !pdata->request_by_node || !pdata->free || !pdata->enable || !pdata->disable || @@ -267,37 +284,32 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev) !pdata->set_prescaler || !pdata->write_counter) { dev_err(&pdev->dev, "Incomplete dmtimer pdata structure\n"); - return -EINVAL; + ret = -EINVAL; + goto put; } - timer = of_parse_phandle(np, "ti,timers", 0); - if (!timer) - return -ENODEV; - if (!of_get_property(timer, "ti,timer-pwm", NULL)) { dev_err(&pdev->dev, "Missing ti,timer-pwm capability\n"); - return -ENODEV; + ret = -ENODEV; + goto put; } dm_timer = pdata->request_by_node(timer); - if (!dm_timer) - return -EPROBE_DEFER; + if (!dm_timer) { + ret = -EPROBE_DEFER; + goto put; + } omap = devm_kzalloc(&pdev->dev, sizeof(*omap), GFP_KERNEL); if (!omap) { pdata->free(dm_timer); - return -ENOMEM; + ret = -ENOMEM; + goto put; } omap->pdata = pdata; omap->dm_timer = dm_timer; - - omap->dm_timer_pdev = of_find_device_by_node(timer); - if (!omap->dm_timer_pdev) { - dev_err(&pdev->dev, "Unable to find timer pdev\n"); - omap->pdata->free(dm_timer); - return -EINVAL; - } + omap->dm_timer_pdev = timer_pdev; /* * Ensure that the timer is stopped before we allow PWM core to call @@ -326,12 +338,18 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev) if (status < 0) { dev_err(&pdev->dev, "failed to register PWM\n"); omap->pdata->free(omap->dm_timer); - return status; + ret = status; + goto put; } platform_set_drvdata(pdev, omap); return 0; + +put: + of_node_put(timer); + + return ret; } static int pwm_omap_dmtimer_remove(struct platform_device *pdev)