[media] omap3isp: Use devm_* managed functions

Replace kzalloc, request_mem_region, ioremap, clk_get and regulator_get
with their devm_* managed replacement.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

5 files changed, 27 insertions, 113 deletions

diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index e4aaee91201d..383a727b8aa0 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -1406,28 +1406,15 @@ static const char *isp_clocks[] = {
         "l3_ick",
 };
 
-static void isp_put_clocks(struct isp_device *isp)
-{
-        unsigned int i;
-
-        for (i = 0; i < ARRAY_SIZE(isp_clocks); ++i) {
-                if (isp->clock[i]) {
-                        clk_put(isp->clock[i]);
-                        isp->clock[i] = NULL;
-                }
-        }
-}
-
 static int isp_get_clocks(struct isp_device *isp)
 {
         struct clk *clk;
         unsigned int i;
 
         for (i = 0; i < ARRAY_SIZE(isp_clocks); ++i) {
-                clk = clk_get(isp->dev, isp_clocks[i]);
+                clk = devm_clk_get(isp->dev, isp_clocks[i]);
                 if (IS_ERR(clk)) {
                         dev_err(isp->dev, "clk_get %s failed\n", isp_clocks[i]);
-                        isp_put_clocks(isp);
                         return PTR_ERR(clk);
                 }
 
@@ -1993,7 +1980,6 @@ error_csiphy:
 static int isp_remove(struct platform_device *pdev)
 {
         struct isp_device *isp = platform_get_drvdata(pdev);
-        int i;
 
         isp_unregister_entities(isp);
         isp_cleanup_modules(isp);
@@ -2004,26 +1990,6 @@ static int isp_remove(struct platform_device *pdev)
         isp->domain = NULL;
         omap3isp_put(isp);
 
-        free_irq(isp->irq_num, isp);
-        isp_put_clocks(isp);
-
-        for (i = 0; i < OMAP3_ISP_IOMEM_LAST; i++) {
-                if (isp->mmio_base[i]) {
-                        iounmap(isp->mmio_base[i]);
-                        isp->mmio_base[i] = NULL;
-                }
-
-                if (isp->mmio_base_phys[i]) {
-                        release_mem_region(isp->mmio_base_phys[i],
-                                           isp->mmio_size[i]);
-                        isp->mmio_base_phys[i] = 0;
-                }
-        }
-
-        regulator_put(isp->isp_csiphy1.vdd);
-        regulator_put(isp->isp_csiphy2.vdd);
-        kfree(isp);
-
         return 0;
 }
 
@@ -2041,7 +2007,8 @@ static int isp_map_mem_resource(struct platform_device *pdev,
                 return -ENODEV;
         }
 
-        if (!request_mem_region(mem->start, resource_size(mem), pdev->name)) {
+        if (!devm_request_mem_region(isp->dev, mem->start, resource_size(mem),
+                                     pdev->name)) {
                 dev_err(isp->dev,
                         "cannot reserve camera register I/O region\n");
                 return -ENODEV;
@@ -2050,8 +2017,9 @@ static int isp_map_mem_resource(struct platform_device *pdev,
         isp->mmio_size[res] = resource_size(mem);
 
         /* map the region */
-        isp->mmio_base[res] = ioremap_nocache(isp->mmio_base_phys[res],
-                                              isp->mmio_size[res]);
+        isp->mmio_base[res] = devm_ioremap_nocache(isp->dev,
+                                                   isp->mmio_base_phys[res],
+                                                   isp->mmio_size[res]);
         if (!isp->mmio_base[res]) {
                 dev_err(isp->dev, "cannot map camera register I/O region\n");
                 return -ENODEV;
@@ -2081,7 +2049,7 @@ static int isp_probe(struct platform_device *pdev)
         if (pdata == NULL)
                 return -EINVAL;
 
-        isp = kzalloc(sizeof(*isp), GFP_KERNEL);
+        isp = devm_kzalloc(&pdev->dev, sizeof(*isp), GFP_KERNEL);
         if (!isp) {
                 dev_err(&pdev->dev, "could not allocate memory\n");
                 return -ENOMEM;
@@ -2104,8 +2072,8 @@ static int isp_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, isp);
 
         /* Regulators */
-        isp->isp_csiphy1.vdd = regulator_get(&pdev->dev, "VDD_CSIPHY1");
-        isp->isp_csiphy2.vdd = regulator_get(&pdev->dev, "VDD_CSIPHY2");
+        isp->isp_csiphy1.vdd = devm_regulator_get(&pdev->dev, "VDD_CSIPHY1");
+        isp->isp_csiphy2.vdd = devm_regulator_get(&pdev->dev, "VDD_CSIPHY2");
 
         /* Clocks
          *
@@ -2180,7 +2148,8 @@ static int isp_probe(struct platform_device *pdev)
                 goto detach_dev;
         }
 
-        if (request_irq(isp->irq_num, isp_isr, IRQF_SHARED, "OMAP3 ISP", isp)) {
+        if (devm_request_irq(isp->dev, isp->irq_num, isp_isr, IRQF_SHARED,
+                             "OMAP3 ISP", isp)) {
                 dev_err(isp->dev, "Unable to request IRQ\n");
                 ret = -EINVAL;
                 goto detach_dev;
@@ -2189,7 +2158,7 @@ static int isp_probe(struct platform_device *pdev)
         /* Entities */
         ret = isp_initialize_modules(isp);
         if (ret < 0)
-                goto error_irq;
+                goto detach_dev;
 
         ret = isp_register_entities(isp);
         if (ret < 0)
@@ -2202,8 +2171,6 @@ static int isp_probe(struct platform_device *pdev)
 
 error_modules:
         isp_cleanup_modules(isp);
-error_irq:
-        free_irq(isp->irq_num, isp);
 detach_dev:
         iommu_detach_device(isp->domain, &pdev->dev);
 free_domain:
@@ -2211,26 +2178,9 @@ free_domain:
 error_isp:
         omap3isp_put(isp);
 error:
-        isp_put_clocks(isp);
-
-        for (i = 0; i < OMAP3_ISP_IOMEM_LAST; i++) {
-                if (isp->mmio_base[i]) {
-                        iounmap(isp->mmio_base[i]);
-                        isp->mmio_base[i] = NULL;
-                }
-
-                if (isp->mmio_base_phys[i]) {
-                        release_mem_region(isp->mmio_base_phys[i],
-                                           isp->mmio_size[i]);
-                        isp->mmio_base_phys[i] = 0;
-                }
-        }
-        regulator_put(isp->isp_csiphy2.vdd);
-        regulator_put(isp->isp_csiphy1.vdd);
         platform_set_drvdata(pdev, NULL);
 
         mutex_destroy(&isp->isp_mutex);
-        kfree(isp);
 
         return ret;
 }
diff --git a/drivers/media/platform/omap3isp/ispccp2.c b/drivers/media/platform/omap3isp/ispccp2.c
index 85f0de85f37c..c5d84c977e29 100644
--- a/drivers/media/platform/omap3isp/ispccp2.c
+++ b/drivers/media/platform/omap3isp/ispccp2.c
@@ -1136,7 +1136,7 @@ int omap3isp_ccp2_init(struct isp_device *isp)
          * TODO: Don't hardcode the usage of PHY1 (shared with CSI2c).
          */
         if (isp->revision == ISP_REVISION_2_0) {
-                ccp2->vdds_csib = regulator_get(isp->dev, "vdds_csib");
+                ccp2->vdds_csib = devm_regulator_get(isp->dev, "vdds_csib");
                 if (IS_ERR(ccp2->vdds_csib)) {
                         dev_dbg(isp->dev,
                                 "Could not get regulator vdds_csib\n");
@@ -1147,10 +1147,8 @@ int omap3isp_ccp2_init(struct isp_device *isp)
         }
 
         ret = ccp2_init_entities(ccp2);
-        if (ret < 0) {
-                regulator_put(ccp2->vdds_csib);
+        if (ret < 0)
                 return ret;
-        }
 
         ccp2_reset(ccp2);
         return 0;
@@ -1166,6 +1164,4 @@ void omap3isp_ccp2_cleanup(struct isp_device *isp)
 
         omap3isp_video_cleanup(&ccp2->video_in);
         media_entity_cleanup(&ccp2->subdev.entity);
-
-        regulator_put(ccp2->vdds_csib);
 }
diff --git a/drivers/media/platform/omap3isp/isph3a_aewb.c b/drivers/media/platform/omap3isp/isph3a_aewb.c
index 1b908fd2e3cf..75fd82b152ba 100644
--- a/drivers/media/platform/omap3isp/isph3a_aewb.c
+++ b/drivers/media/platform/omap3isp/isph3a_aewb.c
@@ -300,9 +300,8 @@ int omap3isp_h3a_aewb_init(struct isp_device *isp)
         struct ispstat *aewb = &isp->isp_aewb;
         struct omap3isp_h3a_aewb_config *aewb_cfg;
         struct omap3isp_h3a_aewb_config *aewb_recover_cfg;
-        int ret;
 
-        aewb_cfg = kzalloc(sizeof(*aewb_cfg), GFP_KERNEL);
+        aewb_cfg = devm_kzalloc(isp->dev, sizeof(*aewb_cfg), GFP_KERNEL);
         if (!aewb_cfg)
                 return -ENOMEM;
 
@@ -313,12 +312,12 @@ int omap3isp_h3a_aewb_init(struct isp_device *isp)
         aewb->isp = isp;
 
         /* Set recover state configuration */
-        aewb_recover_cfg = kzalloc(sizeof(*aewb_recover_cfg), GFP_KERNEL);
+        aewb_recover_cfg = devm_kzalloc(isp->dev, sizeof(*aewb_recover_cfg),
+                                        GFP_KERNEL);
         if (!aewb_recover_cfg) {
                 dev_err(aewb->isp->dev, "AEWB: cannot allocate memory for "
                                         "recover configuration.\n");
-                ret = -ENOMEM;
-                goto err_recover_alloc;
+                return -ENOMEM;
         }
 
         aewb_recover_cfg->saturation_limit = OMAP3ISP_AEWB_MAX_SATURATION_LIM;
@@ -335,25 +334,13 @@ int omap3isp_h3a_aewb_init(struct isp_device *isp)
         if (h3a_aewb_validate_params(aewb, aewb_recover_cfg)) {
                 dev_err(aewb->isp->dev, "AEWB: recover configuration is "
                                         "invalid.\n");
-                ret = -EINVAL;
-                goto err_conf;
+                return -EINVAL;
         }
 
         aewb_recover_cfg->buf_size = h3a_aewb_get_buf_size(aewb_recover_cfg);
         aewb->recover_priv = aewb_recover_cfg;
 
-        ret = omap3isp_stat_init(aewb, "AEWB", &h3a_aewb_subdev_ops);
-        if (ret)
-                goto err_conf;
-
-        return 0;
-
-err_conf:
-        kfree(aewb_recover_cfg);
-err_recover_alloc:
-        kfree(aewb_cfg);
-
-        return ret;
+        return omap3isp_stat_init(aewb, "AEWB", &h3a_aewb_subdev_ops);
 }
 
 /*
@@ -361,7 +348,5 @@ err_recover_alloc:
  */
 void omap3isp_h3a_aewb_cleanup(struct isp_device *isp)
 {
-        kfree(isp->isp_aewb.priv);
-        kfree(isp->isp_aewb.recover_priv);
         omap3isp_stat_cleanup(&isp->isp_aewb);
 }
diff --git a/drivers/media/platform/omap3isp/isph3a_af.c b/drivers/media/platform/omap3isp/isph3a_af.c
index d645b418ca6a..a0bf5af32438 100644
--- a/drivers/media/platform/omap3isp/isph3a_af.c
+++ b/drivers/media/platform/omap3isp/isph3a_af.c
@@ -363,9 +363,8 @@ int omap3isp_h3a_af_init(struct isp_device *isp)
         struct ispstat *af = &isp->isp_af;
         struct omap3isp_h3a_af_config *af_cfg;
         struct omap3isp_h3a_af_config *af_recover_cfg;
-        int ret;
 
-        af_cfg = kzalloc(sizeof(*af_cfg), GFP_KERNEL);
+        af_cfg = devm_kzalloc(isp->dev, sizeof(*af_cfg), GFP_KERNEL);
         if (af_cfg == NULL)
                 return -ENOMEM;
 
@@ -376,12 +375,12 @@ int omap3isp_h3a_af_init(struct isp_device *isp)
         af->isp = isp;
 
         /* Set recover state configuration */
-        af_recover_cfg = kzalloc(sizeof(*af_recover_cfg), GFP_KERNEL);
+        af_recover_cfg = devm_kzalloc(isp->dev, sizeof(*af_recover_cfg),
+                                      GFP_KERNEL);
         if (!af_recover_cfg) {
                 dev_err(af->isp->dev, "AF: cannot allocate memory for recover "
                                       "configuration.\n");
-                ret = -ENOMEM;
-                goto err_recover_alloc;
+                return -ENOMEM;
         }
 
         af_recover_cfg->paxel.h_start = OMAP3ISP_AF_PAXEL_HZSTART_MIN;
@@ -393,30 +392,16 @@ int omap3isp_h3a_af_init(struct isp_device *isp)
         if (h3a_af_validate_params(af, af_recover_cfg)) {
                 dev_err(af->isp->dev, "AF: recover configuration is "
                                       "invalid.\n");
-                ret = -EINVAL;
-                goto err_conf;
+                return -EINVAL;
         }
 
         af_recover_cfg->buf_size = h3a_af_get_buf_size(af_recover_cfg);
         af->recover_priv = af_recover_cfg;
 
-        ret = omap3isp_stat_init(af, "AF", &h3a_af_subdev_ops);
-        if (ret)
-                goto err_conf;
-
-        return 0;
-
-err_conf:
-        kfree(af_recover_cfg);
-err_recover_alloc:
-        kfree(af_cfg);
-
-        return ret;
+        return omap3isp_stat_init(af, "AF", &h3a_af_subdev_ops);
 }
 
 void omap3isp_h3a_af_cleanup(struct isp_device *isp)
 {
-        kfree(isp->isp_af.priv);
-        kfree(isp->isp_af.recover_priv);
         omap3isp_stat_cleanup(&isp->isp_af);
 }
diff --git a/drivers/media/platform/omap3isp/isphist.c b/drivers/media/platform/omap3isp/isphist.c
index da2fa98b501a..2ccc4e5702b2 100644
--- a/drivers/media/platform/omap3isp/isphist.c
+++ b/drivers/media/platform/omap3isp/isphist.c
@@ -477,7 +477,7 @@ int omap3isp_hist_init(struct isp_device *isp)
         struct omap3isp_hist_config *hist_cfg;
         int ret = -1;
 
-        hist_cfg = kzalloc(sizeof(*hist_cfg), GFP_KERNEL);
+        hist_cfg = devm_kzalloc(isp->dev, sizeof(*hist_cfg), GFP_KERNEL);
         if (hist_cfg == NULL)
                 return -ENOMEM;
 
@@ -503,7 +503,6 @@ int omap3isp_hist_init(struct isp_device *isp)
 
         ret = omap3isp_stat_init(hist, "histogram", &hist_subdev_ops);
         if (ret) {
-                kfree(hist_cfg);
                 if (HIST_USING_DMA(hist))
                         omap_free_dma(hist->dma_ch);
         }
@@ -518,6 +517,5 @@ void omap3isp_hist_cleanup(struct isp_device *isp)
 {
         if (HIST_USING_DMA(&isp->isp_hist))
                 omap_free_dma(isp->isp_hist.dma_ch);
-        kfree(isp->isp_hist.priv);
         omap3isp_stat_cleanup(&isp->isp_hist);
 }