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drm: sti: remove useless fields from vtg structure
Drivers are registered on platform bus so the private list could be replace by a call to of_find_device_by_node(). Changing this also makes dev, np and link fields useless in vtg structure. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1510146255-24982-1-git-send-email-benjamin.gaignard@linaro.org
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parent
846c7dfc11
commit
cc6b741c6f
2 changed files with 9 additions and 24 deletions
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@ -8,5 +8,6 @@ config DRM_STI
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select DRM_PANEL
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select FW_LOADER
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select SND_SOC_HDMI_CODEC if SND_SOC
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select OF
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help
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Choose this option to enable DRM on STM stiH4xx chipset
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@ -9,6 +9,7 @@
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#include <linux/module.h>
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#include <linux/notifier.h>
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#include <linux/of_platform.h>
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#include <linux/platform_device.h>
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#include <drm/drmP.h>
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@ -72,8 +73,6 @@
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#define AWG_DELAY_ED (-8)
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#define AWG_DELAY_SD (-7)
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static LIST_HEAD(vtg_lookup);
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/*
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* STI VTG register offset structure
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*
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@ -123,42 +122,31 @@ struct sti_vtg_sync_params {
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/**
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* STI VTG structure
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*
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* @dev: pointer to device driver
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* @np: device node
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* @regs: register mapping
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* @sync_params: synchronisation parameters used to generate timings
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* @irq: VTG irq
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* @irq_status: store the IRQ status value
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* @notifier_list: notifier callback
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* @crtc: the CRTC for vblank event
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* @link: List node to link the structure in lookup list
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*/
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struct sti_vtg {
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struct device *dev;
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struct device_node *np;
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void __iomem *regs;
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struct sti_vtg_sync_params sync_params[VTG_MAX_SYNC_OUTPUT];
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int irq;
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u32 irq_status;
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struct raw_notifier_head notifier_list;
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struct drm_crtc *crtc;
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struct list_head link;
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};
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static void vtg_register(struct sti_vtg *vtg)
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{
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list_add_tail(&vtg->link, &vtg_lookup);
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}
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struct sti_vtg *of_vtg_find(struct device_node *np)
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{
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struct sti_vtg *vtg;
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struct platform_device *pdev;
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list_for_each_entry(vtg, &vtg_lookup, link) {
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if (vtg->np == np)
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return vtg;
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}
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return NULL;
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pdev = of_find_device_by_node(np);
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if (!pdev)
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return NULL;
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return (struct sti_vtg *)platform_get_drvdata(pdev);
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}
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static void vtg_reset(struct sti_vtg *vtg)
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@ -397,9 +385,6 @@ static int vtg_probe(struct platform_device *pdev)
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if (!vtg)
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return -ENOMEM;
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vtg->dev = dev;
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vtg->np = pdev->dev.of_node;
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/* Get Memory ressources */
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res) {
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@ -428,10 +413,9 @@ static int vtg_probe(struct platform_device *pdev)
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return ret;
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}
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vtg_register(vtg);
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platform_set_drvdata(pdev, vtg);
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DRM_INFO("%s %s\n", __func__, dev_name(vtg->dev));
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DRM_INFO("%s %s\n", __func__, dev_name(dev));
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return 0;
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}
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