From: Magnus Damm <magnus.damm@gmail.com> To: linux-sh@vger.kernel.org Cc: Magnus Damm <magnus.damm@gmail.com>, lethal@linux-sh.org, linux-fbdev-devel@lists.sourceforge.net Subject: [PATCH] video: add sh_mobile_lcdcfb memory resource Date: Tue, 12 May 2009 09:57:45 +0000 [thread overview] Message-ID: <20090512095745.25477.87326.sendpatchset@rx1.opensource.se> (raw) From: Magnus Damm <damm@igel.co.jp> This patch adds memory resource support to the LCDC driver. With this applied the physical memory range used for framebuffer data will show up in /proc/iomem together with other SuperH Mobile devices. Signed-off-by: Magnus Damm <damm@igel.co.jp> --- drivers/video/sh_mobile_lcdcfb.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) --- 0001/drivers/video/sh_mobile_lcdcfb.c +++ work/drivers/video/sh_mobile_lcdcfb.c 2009-05-11 21:14:35.000000000 +0900 @@ -35,6 +35,7 @@ struct sh_mobile_lcdc_chan { struct fb_deferred_io defio; unsigned long frame_end; wait_queue_head_t frame_end_wait; + struct resource memory; }; struct sh_mobile_lcdc_priv { @@ -813,12 +814,26 @@ static int __init sh_mobile_lcdc_probe(s break; } + res = &priv->ch[i].memory; + res->name = "lcdc"; + res->start = priv->ch[i].dma_handle; + res->end = res->start + info->fix.smem_len - 1; + res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + error = insert_resource(&iomem_resource, res); + if (error) { + dev_err(&pdev->dev, "unable to request resource\n"); + dma_free_coherent(&pdev->dev, info->fix.smem_len, + buf, priv->ch[i].dma_handle); + break; + } + info->pseudo_palette = &priv->ch[i].pseudo_palette; info->flags = FBINFO_FLAG_DEFAULT; error = fb_alloc_cmap(&info->cmap, PALETTE_NR, 0); if (error < 0) { dev_err(&pdev->dev, "unable to allocate cmap\n"); + release_resource(res); dma_free_coherent(&pdev->dev, info->fix.smem_len, buf, priv->ch[i].dma_handle); break; @@ -887,6 +902,7 @@ static int sh_mobile_lcdc_remove(struct if (!info->device) continue; + release_resource(&priv->ch[i].memory); dma_free_coherent(&pdev->dev, info->fix.smem_len, info->screen_base, priv->ch[i].dma_handle); fb_dealloc_cmap(&info->cmap);
WARNING: multiple messages have this Message-ID (diff)
From: Magnus Damm <magnus.damm@gmail.com> To: linux-sh@vger.kernel.org Cc: Magnus Damm <magnus.damm@gmail.com>, lethal@linux-sh.org, linux-fbdev-devel@lists.sourceforge.net Subject: [PATCH] video: add sh_mobile_lcdcfb memory resource Date: Tue, 12 May 2009 18:57:45 +0900 [thread overview] Message-ID: <20090512095745.25477.87326.sendpatchset@rx1.opensource.se> (raw) From: Magnus Damm <damm@igel.co.jp> This patch adds memory resource support to the LCDC driver. With this applied the physical memory range used for framebuffer data will show up in /proc/iomem together with other SuperH Mobile devices. Signed-off-by: Magnus Damm <damm@igel.co.jp> --- drivers/video/sh_mobile_lcdcfb.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) --- 0001/drivers/video/sh_mobile_lcdcfb.c +++ work/drivers/video/sh_mobile_lcdcfb.c 2009-05-11 21:14:35.000000000 +0900 @@ -35,6 +35,7 @@ struct sh_mobile_lcdc_chan { struct fb_deferred_io defio; unsigned long frame_end; wait_queue_head_t frame_end_wait; + struct resource memory; }; struct sh_mobile_lcdc_priv { @@ -813,12 +814,26 @@ static int __init sh_mobile_lcdc_probe(s break; } + res = &priv->ch[i].memory; + res->name = "lcdc"; + res->start = priv->ch[i].dma_handle; + res->end = res->start + info->fix.smem_len - 1; + res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + error = insert_resource(&iomem_resource, res); + if (error) { + dev_err(&pdev->dev, "unable to request resource\n"); + dma_free_coherent(&pdev->dev, info->fix.smem_len, + buf, priv->ch[i].dma_handle); + break; + } + info->pseudo_palette = &priv->ch[i].pseudo_palette; info->flags = FBINFO_FLAG_DEFAULT; error = fb_alloc_cmap(&info->cmap, PALETTE_NR, 0); if (error < 0) { dev_err(&pdev->dev, "unable to allocate cmap\n"); + release_resource(res); dma_free_coherent(&pdev->dev, info->fix.smem_len, buf, priv->ch[i].dma_handle); break; @@ -887,6 +902,7 @@ static int sh_mobile_lcdc_remove(struct if (!info->device) continue; + release_resource(&priv->ch[i].memory); dma_free_coherent(&pdev->dev, info->fix.smem_len, info->screen_base, priv->ch[i].dma_handle); fb_dealloc_cmap(&info->cmap);
next reply other threads:[~2009-05-12 9:57 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-05-12 9:57 Magnus Damm [this message] 2009-05-12 9:57 ` [PATCH] video: add sh_mobile_lcdcfb memory resource Magnus Damm 2009-05-12 10:50 ` Paul Mundt 2009-05-12 10:50 ` Paul Mundt 2009-05-12 11:18 ` Magnus Damm 2009-05-12 11:18 ` Magnus Damm
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20090512095745.25477.87326.sendpatchset@rx1.opensource.se \ --to=magnus.damm@gmail.com \ --cc=lethal@linux-sh.org \ --cc=linux-fbdev-devel@lists.sourceforge.net \ --cc=linux-sh@vger.kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.